diff --git a/home-mixer/BUILD.bazel b/home-mixer/BUILD.bazel
deleted file mode 100644
index ab7b358e7..000000000
--- a/home-mixer/BUILD.bazel
+++ /dev/null
@@ -1,30 +0,0 @@
-jvm_binary(
-    name = "bin",
-    basename = "home-mixer",
-    main = "com.twitter.home_mixer.HomeMixerServerMain",
-    runtime_platform = "java11",
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/ch/qos/logback:logback-classic",
-        "finagle/finagle-zipkin-scribe/src/main/scala",
-        "finatra/inject/inject-logback/src/main/scala",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer",
-        "loglens/loglens-logback/src/main/scala/com/twitter/loglens/logback",
-        "twitter-server-internal/src/main/scala",
-        "twitter-server/logback-classic/src/main/scala",
-    ],
-)
-
-#  Aurora Workflows build phase convention requires a jvm_app named with home-mixer-app
-jvm_app(
-    name = "home-mixer-app",
-    archive = "zip",
-    binary = ":bin",
-    bundles = [
-        bundle(
-            fileset = ["config/**/*"],
-            owning_target = "home-mixer/config:files",
-        ),
-    ],
-    tags = ["bazel-compatible"],
-)
diff --git a/home-mixer/README.md b/home-mixer/README.md
deleted file mode 100644
index 20861d7a0..000000000
--- a/home-mixer/README.md
+++ /dev/null
@@ -1,101 +0,0 @@
-Home Mixer
-==========
-
-Home Mixer is the main service used to construct and serve Twitter's Home Timelines. It currently
-powers:
-- For you - best Tweets from people you follow + recommended out-of-network content
-- Following - reverse chronological Tweets from people you follow
-- Lists - reverse chronological Tweets from List members
-
-Home Mixer is built on Product Mixer, our custom Scala framework that facilitates building
-feeds of content.
-
-## Overview
-
-The For You recommendation algorithm in Home Mixer involves the following stages:
-
-- Candidate Generation - fetch Tweets from various Candidate Sources. For example:
-    - Earlybird Search Index
-    - User Tweet Entity Graph
-    - Cr Mixer
-    - Follow Recommendations Service
-- Feature Hydration
-    - Fetch the ~6000 features needed for ranking
-- Scoring and Ranking using ML model
-- Filters and Heuristics. For example:
-    - Author Diversity
-    - Content Balance (In network vs Out of Network)
-    - Feedback fatigue
-    - Deduplication / previously seen Tweets removal
-    - Visibility Filtering (blocked, muted authors/tweets, NSFW settings)
-- Mixing - integrate Tweets with non-Tweet content
-    - Ads
-    - Who-to-follow modules
-    - Prompts
-- Product Features and Serving
-    - Conversation Modules for replies
-    - Social Context
-    - Timeline Navigation
-    - Edited Tweets
-    - Feedback options
-    - Pagination and cursoring
-    - Observability and logging
-    - Client instructions and content marshalling
-
-## Pipeline Structure
-
-### General
-
-Product Mixer services like Home Mixer are structured around Pipelines that split the execution
-into transparent and structured steps.
-
-Requests first go to Product Pipelines, which are used to select which Mixer Pipeline or
-Recommendation Pipeline to run for a given request. Each Mixer or Recommendation
-Pipeline may run multiple Candidate Pipelines to fetch candidates to include in the response.
-
-Mixer Pipelines combine the results of multiple heterogeneous Candidate Pipelines together
-(e.g. ads, tweets, users) while Recommendation Pipelines are used to score (via Scoring Pipelines)
-and rank the results of homogenous Candidate Pipelines so that the top ranked ones can be returned.
-These pipelines also marshall candidates into a domain object and then into a transport object
-to return to the caller.
-
-Candidate Pipelines fetch candidates from underlying Candidate Sources and perform some basic
-operations on the Candidates, such as filtering out unwanted candidates, applying decorations,
-and hydrating features.
-
-The sections below describe the high level pipeline structure (non-exhaustive) for the main Home
-Timeline tabs powered by Home Mixer.
-
-### For You
-
-- ForYouProductPipelineConfig
-    - ForYouScoredTweetsMixerPipelineConfig (main orchestration layer - mixes Tweets with ads and users)
-        - ForYouScoredTweetsCandidatePipelineConfig (fetch Tweets)
-            - ScoredTweetsRecommendationPipelineConfig (main Tweet recommendation layer)
-                - Fetch Tweet Candidates
-                    - ScoredTweetsInNetworkCandidatePipelineConfig
-                    - ScoredTweetsTweetMixerCandidatePipelineConfig
-                    - ScoredTweetsUtegCandidatePipelineConfig
-                    - ScoredTweetsFrsCandidatePipelineConfig
-                - Feature Hydration and Scoring
-                    - ScoredTweetsScoringPipelineConfig
-        - ForYouConversationServiceCandidatePipelineConfig (backup reverse chron pipeline in case Scored Tweets fails)
-        - ForYouAdsCandidatePipelineConfig (fetch ads)
-        - ForYouWhoToFollowCandidatePipelineConfig (fetch users to recommend)
-
-### Following
-
-- FollowingProductPipelineConfig
-    - FollowingMixerPipelineConfig
-        - FollowingEarlybirdCandidatePipelineConfig (fetch tweets from Search Index)
-        - ConversationServiceCandidatePipelineConfig (fetch ancestors for conversation modules)
-        - FollowingAdsCandidatePipelineConfig (fetch ads)
-        - FollowingWhoToFollowCandidatePipelineConfig (fetch users to recommend)
-
-### Lists
-
-- ListTweetsProductPipelineConfig
-    - ListTweetsMixerPipelineConfig
-        - ListTweetsTimelineServiceCandidatePipelineConfig (fetch tweets from timeline service)
-        - ConversationServiceCandidatePipelineConfig (fetch ancestors for conversation modules)
-        - ListTweetsAdsCandidatePipelineConfig (fetch ads)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/BUILD.bazel
deleted file mode 100644
index 103e079da..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/BUILD.bazel
+++ /dev/null
@@ -1,51 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/com/google/inject:guice",
-        "3rdparty/jvm/javax/inject:javax.inject",
-        "3rdparty/jvm/net/codingwell:scala-guice",
-        "3rdparty/jvm/org/slf4j:slf4j-api",
-        "finagle/finagle-core/src/main",
-        "finagle/finagle-http/src/main/scala",
-        "finagle/finagle-thriftmux/src/main/scala",
-        "finatra-internal/mtls-http/src/main/scala",
-        "finatra-internal/mtls-thriftmux/src/main/scala",
-        "finatra/http-core/src/main/java/com/twitter/finatra/http",
-        "finatra/inject/inject-app/src/main/java/com/twitter/inject/annotations",
-        "finatra/inject/inject-app/src/main/scala",
-        "finatra/inject/inject-core/src/main/scala",
-        "finatra/inject/inject-server/src/main/scala",
-        "finatra/inject/inject-utils/src/main/scala",
-        "home-mixer/server/src/main/resources",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/controller",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/federated",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/module",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/module",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/controllers",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/module",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/module/stringcenter",
-        "product-mixer/core/src/main/thrift/com/twitter/product_mixer/core:thrift-scala",
-        "src/thrift/com/twitter/timelines/render:thrift-scala",
-        "strato/config/columns/auth-context:auth-context-strato-client",
-        "strato/config/columns/gizmoduck:gizmoduck-strato-client",
-        "strato/src/main/scala/com/twitter/strato/fed",
-        "strato/src/main/scala/com/twitter/strato/fed/server",
-        "stringcenter/client",
-        "stringcenter/client/src/main/java",
-        "stringcenter/client/src/main/scala/com/twitter/stringcenter/client",
-        "thrift-web-forms/src/main/scala/com/twitter/thriftwebforms/view",
-        "timelines/src/main/scala/com/twitter/timelines/config",
-        "timelines/src/main/scala/com/twitter/timelines/features/app",
-        "twitter-server-internal",
-        "twitter-server/server/src/main/scala",
-        "util/util-app/src/main/scala",
-        "util/util-core:scala",
-        "util/util-slf4j-api/src/main/scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/HomeMixerHttpServerWarmupHandler.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/HomeMixerHttpServerWarmupHandler.scala
deleted file mode 100644
index e27133b23..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/HomeMixerHttpServerWarmupHandler.scala
+++ /dev/null
@@ -1,18 +0,0 @@
-package com.twitter.home_mixer
-
-import com.twitter.finatra.http.routing.HttpWarmup
-import com.twitter.finatra.httpclient.RequestBuilder._
-import com.twitter.util.logging.Logging
-import com.twitter.inject.utils.Handler
-import com.twitter.util.Try
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class HomeMixerHttpServerWarmupHandler @Inject() (warmup: HttpWarmup) extends Handler with Logging {
-
-  override def handle(): Unit = {
-    Try(warmup.send(get("/admin/product-mixer/product-pipelines"), admin = true)())
-      .onFailure(e => error(e.getMessage, e))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/HomeMixerServer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/HomeMixerServer.scala
deleted file mode 100644
index e635c7a68..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/HomeMixerServer.scala
+++ /dev/null
@@ -1,128 +0,0 @@
-package com.twitter.home_mixer
-
-import com.google.inject.Module
-import com.twitter.finagle.Filter
-import com.twitter.finatra.annotations.DarkTrafficFilterType
-import com.twitter.finatra.http.HttpServer
-import com.twitter.finatra.http.routing.HttpRouter
-import com.twitter.finatra.mtls.http.{Mtls => HttpMtls}
-import com.twitter.finatra.mtls.thriftmux.Mtls
-import com.twitter.finatra.mtls.thriftmux.modules.MtlsThriftWebFormsModule
-import com.twitter.finatra.thrift.ThriftServer
-import com.twitter.finatra.thrift.filters._
-import com.twitter.finatra.thrift.routing.ThriftRouter
-import com.twitter.home_mixer.controller.HomeThriftController
-import com.twitter.home_mixer.federated.HomeMixerColumn
-import com.twitter.home_mixer.module._
-import com.twitter.home_mixer.param.GlobalParamConfigModule
-import com.twitter.home_mixer.product.HomeMixerProductModule
-import com.twitter.home_mixer.{thriftscala => st}
-import com.twitter.product_mixer.component_library.module.AccountRecommendationsMixerModule
-import com.twitter.product_mixer.component_library.module.DarkTrafficFilterModule
-import com.twitter.product_mixer.component_library.module.EarlybirdModule
-import com.twitter.product_mixer.component_library.module.ExploreRankerClientModule
-import com.twitter.product_mixer.component_library.module.GizmoduckClientModule
-import com.twitter.product_mixer.component_library.module.OnboardingTaskServiceModule
-import com.twitter.product_mixer.component_library.module.SocialGraphServiceModule
-import com.twitter.product_mixer.component_library.module.TimelineRankerClientModule
-import com.twitter.product_mixer.component_library.module.TimelineScorerClientModule
-import com.twitter.product_mixer.component_library.module.TimelineServiceClientModule
-import com.twitter.product_mixer.component_library.module.TweetImpressionStoreModule
-import com.twitter.product_mixer.component_library.module.TweetMixerClientModule
-import com.twitter.product_mixer.component_library.module.UserSessionStoreModule
-import com.twitter.product_mixer.core.controllers.ProductMixerController
-import com.twitter.product_mixer.core.module.LoggingThrowableExceptionMapper
-import com.twitter.product_mixer.core.module.ProductMixerModule
-import com.twitter.product_mixer.core.module.stringcenter.ProductScopeStringCenterModule
-import com.twitter.strato.fed.StratoFed
-import com.twitter.strato.fed.server.StratoFedServer
-
-object HomeMixerServerMain extends HomeMixerServer
-
-class HomeMixerServer
-    extends StratoFedServer
-    with ThriftServer
-    with Mtls
-    with HttpServer
-    with HttpMtls {
-  override val name = "home-mixer-server"
-
-  override val modules: Seq[Module] = Seq(
-    AccountRecommendationsMixerModule,
-    AdvertiserBrandSafetySettingsStoreModule,
-    BlenderClientModule,
-    ClientSentImpressionsPublisherModule,
-    ConversationServiceModule,
-    EarlybirdModule,
-    ExploreRankerClientModule,
-    FeedbackHistoryClientModule,
-    GizmoduckClientModule,
-    GlobalParamConfigModule,
-    HomeAdsCandidateSourceModule,
-    HomeMixerFlagsModule,
-    HomeMixerProductModule,
-    HomeMixerResourcesModule,
-    ImpressionBloomFilterModule,
-    InjectionHistoryClientModule,
-    ManhattanClientsModule,
-    ManhattanFeatureRepositoryModule,
-    ManhattanTweetImpressionStoreModule,
-    MemcachedFeatureRepositoryModule,
-    NaviModelClientModule,
-    OnboardingTaskServiceModule,
-    OptimizedStratoClientModule,
-    PeopleDiscoveryServiceModule,
-    ProductMixerModule,
-    RealGraphInNetworkScoresModule,
-    RealtimeAggregateFeatureRepositoryModule,
-    ScoredTweetsMemcacheModule,
-    ScribeEventPublisherModule,
-    SimClustersRecentEngagementsClientModule,
-    SocialGraphServiceModule,
-    StaleTweetsCacheModule,
-    ThriftFeatureRepositoryModule,
-    TimelineRankerClientModule,
-    TimelineScorerClientModule,
-    TimelineServiceClientModule,
-    TimelinesPersistenceStoreClientModule,
-    TopicSocialProofClientModule,
-    TweetImpressionStoreModule,
-    TweetMixerClientModule,
-    TweetypieClientModule,
-    TweetypieStaticEntitiesCacheClientModule,
-    UserSessionStoreModule,
-    new DarkTrafficFilterModule[st.HomeMixer.ReqRepServicePerEndpoint](),
-    new MtlsThriftWebFormsModule[st.HomeMixer.MethodPerEndpoint](this),
-    new ProductScopeStringCenterModule()
-  )
-
-  override def configureThrift(router: ThriftRouter): Unit = {
-    router
-      .filter[LoggingMDCFilter]
-      .filter[TraceIdMDCFilter]
-      .filter[ThriftMDCFilter]
-      .filter[StatsFilter]
-      .filter[AccessLoggingFilter]
-      .filter[ExceptionMappingFilter]
-      .filter[Filter.TypeAgnostic, DarkTrafficFilterType]
-      .exceptionMapper[LoggingThrowableExceptionMapper]
-      .exceptionMapper[PipelineFailureExceptionMapper]
-      .add[HomeThriftController]
-  }
-
-  override def configureHttp(router: HttpRouter): Unit =
-    router.add(
-      ProductMixerController[st.HomeMixer.MethodPerEndpoint](
-        this.injector,
-        st.HomeMixer.ExecutePipeline))
-
-  override val dest: String = "/s/home-mixer/home-mixer:strato"
-
-  override val columns: Seq[Class[_ <: StratoFed.Column]] =
-    Seq(classOf[HomeMixerColumn])
-
-  override protected def warmup(): Unit = {
-    handle[HomeMixerThriftServerWarmupHandler]()
-    handle[HomeMixerHttpServerWarmupHandler]()
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/HomeMixerThriftServerWarmupHandler.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/HomeMixerThriftServerWarmupHandler.scala
deleted file mode 100644
index 982b77487..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/HomeMixerThriftServerWarmupHandler.scala
+++ /dev/null
@@ -1,73 +0,0 @@
-package com.twitter.home_mixer
-
-import com.twitter.finagle.thrift.ClientId
-import com.twitter.finatra.thrift.routing.ThriftWarmup
-import com.twitter.home_mixer.{thriftscala => st}
-import com.twitter.util.logging.Logging
-import com.twitter.inject.utils.Handler
-import com.twitter.product_mixer.core.{thriftscala => pt}
-import com.twitter.scrooge.Request
-import com.twitter.scrooge.Response
-import com.twitter.util.Return
-import com.twitter.util.Throw
-import com.twitter.util.Try
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class HomeMixerThriftServerWarmupHandler @Inject() (warmup: ThriftWarmup)
-    extends Handler
-    with Logging {
-
-  private val clientId = ClientId("thrift-warmup-client")
-
-  def handle(): Unit = {
-    val testIds = Seq(1, 2, 3)
-    try {
-      clientId.asCurrent {
-        testIds.foreach { id =>
-          val warmupReq = warmupQuery(id)
-          info(s"Sending warm-up request to service with query: $warmupReq")
-          warmup.sendRequest(
-            method = st.HomeMixer.GetUrtResponse,
-            req = Request(st.HomeMixer.GetUrtResponse.Args(warmupReq)))(assertWarmupResponse)
-        }
-      }
-    } catch {
-      case e: Throwable => error(e.getMessage, e)
-    }
-    info("Warm-up done.")
-  }
-
-  private def warmupQuery(userId: Long): st.HomeMixerRequest = {
-    val clientContext = pt.ClientContext(
-      userId = Some(userId),
-      guestId = None,
-      appId = Some(12345L),
-      ipAddress = Some("0.0.0.0"),
-      userAgent = Some("FAKE_USER_AGENT_FOR_WARMUPS"),
-      countryCode = Some("US"),
-      languageCode = Some("en"),
-      isTwoffice = None,
-      userRoles = None,
-      deviceId = Some("FAKE_DEVICE_ID_FOR_WARMUPS")
-    )
-    st.HomeMixerRequest(
-      clientContext = clientContext,
-      product = st.Product.Following,
-      productContext = Some(st.ProductContext.Following(st.Following())),
-      maxResults = Some(3)
-    )
-  }
-
-  private def assertWarmupResponse(
-    result: Try[Response[st.HomeMixer.GetUrtResponse.SuccessType]]
-  ): Unit = {
-    result match {
-      case Return(_) => // ok
-      case Throw(exception) =>
-        warn("Error performing warm-up request.")
-        error(exception.getMessage, exception)
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/BUILD.bazel
deleted file mode 100644
index 3f738bcb6..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/BUILD.bazel
+++ /dev/null
@@ -1,26 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/candidate_source",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/query_transformer",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/service",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/tweetconvosvc",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/decorator/urt",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/filter",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/gate",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/transformer",
-    ],
-    exports = [
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/tweetconvosvc",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/ConversationServiceCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/ConversationServiceCandidatePipelineConfig.scala
deleted file mode 100644
index d26843193..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/ConversationServiceCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,116 +0,0 @@
-package com.twitter.home_mixer.candidate_pipeline
-
-import com.twitter.home_mixer.functional_component.feature_hydrator.InNetworkFeatureHydrator
-import com.twitter.home_mixer.functional_component.feature_hydrator.NamesFeatureHydrator
-import com.twitter.home_mixer.functional_component.feature_hydrator.TweetypieFeatureHydrator
-import com.twitter.home_mixer.functional_component.filter.InvalidConversationModuleFilter
-import com.twitter.home_mixer.functional_component.filter.InvalidSubscriptionTweetFilter
-import com.twitter.home_mixer.functional_component.filter.RetweetDeduplicationFilter
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsHydratedFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedTweetDroppedFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceUserIdFeature
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.component_library.candidate_source.tweetconvosvc.ConversationServiceCandidateSource
-import com.twitter.product_mixer.component_library.candidate_source.tweetconvosvc.ConversationServiceCandidateSourceRequest
-import com.twitter.product_mixer.component_library.candidate_source.tweetconvosvc.TweetWithConversationMetadata
-import com.twitter.product_mixer.component_library.filter.FeatureFilter
-import com.twitter.product_mixer.component_library.filter.PredicateFeatureFilter
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.BaseCandidateSource
-import com.twitter.product_mixer.core.functional_component.decorator.CandidateDecorator
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BaseCandidateFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.gate.BaseGate
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.DependentCandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.pipeline.candidate.DependentCandidatePipelineConfig
-
-/**
- * Candidate Pipeline Config that fetches tweets from the Conversation Service Candidate Source
- */
-class ConversationServiceCandidatePipelineConfig[Query <: PipelineQuery](
-  conversationServiceCandidateSource: ConversationServiceCandidateSource,
-  tweetypieFeatureHydrator: TweetypieFeatureHydrator,
-  namesFeatureHydrator: NamesFeatureHydrator,
-  invalidSubscriptionTweetFilter: InvalidSubscriptionTweetFilter,
-  override val gates: Seq[BaseGate[Query]],
-  override val decorator: Option[CandidateDecorator[Query, TweetCandidate]])
-    extends DependentCandidatePipelineConfig[
-      Query,
-      ConversationServiceCandidateSourceRequest,
-      TweetWithConversationMetadata,
-      TweetCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("ConversationService")
-
-  private val TweetypieHydratedFilterId = "TweetypieHydrated"
-  private val QuotedTweetDroppedFilterId = "QuotedTweetDropped"
-
-  override val candidateSource: BaseCandidateSource[
-    ConversationServiceCandidateSourceRequest,
-    TweetWithConversationMetadata
-  ] = conversationServiceCandidateSource
-
-  override val queryTransformer: DependentCandidatePipelineQueryTransformer[
-    Query,
-    ConversationServiceCandidateSourceRequest
-  ] = { (_, candidates) =>
-    val tweetsWithConversationMetadata = candidates.map { candidate =>
-      TweetWithConversationMetadata(
-        tweetId = candidate.candidateIdLong,
-        userId = candidate.features.getOrElse(AuthorIdFeature, None),
-        sourceTweetId = candidate.features.getOrElse(SourceTweetIdFeature, None),
-        sourceUserId = candidate.features.getOrElse(SourceUserIdFeature, None),
-        inReplyToTweetId = candidate.features.getOrElse(InReplyToTweetIdFeature, None),
-        conversationId = None,
-        ancestors = Seq.empty
-      )
-    }
-    ConversationServiceCandidateSourceRequest(tweetsWithConversationMetadata)
-  }
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[TweetWithConversationMetadata]
-  ] = Seq(ConversationServiceResponseFeatureTransformer)
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    TweetWithConversationMetadata,
-    TweetCandidate
-  ] = { sourceResult => TweetCandidate(id = sourceResult.tweetId) }
-
-  override val preFilterFeatureHydrationPhase1: Seq[
-    BaseCandidateFeatureHydrator[Query, TweetCandidate, _]
-  ] = Seq(
-    tweetypieFeatureHydrator,
-    InNetworkFeatureHydrator,
-  )
-
-  override def filters: Seq[Filter[Query, TweetCandidate]] = Seq(
-    RetweetDeduplicationFilter,
-    FeatureFilter.fromFeature(FilterIdentifier(TweetypieHydratedFilterId), IsHydratedFeature),
-    PredicateFeatureFilter.fromPredicate(
-      FilterIdentifier(QuotedTweetDroppedFilterId),
-      shouldKeepCandidate = { features => !features.getOrElse(QuotedTweetDroppedFeature, false) }
-    ),
-    invalidSubscriptionTweetFilter,
-    InvalidConversationModuleFilter
-  )
-
-  override val postFilterFeatureHydration: Seq[
-    BaseCandidateFeatureHydrator[Query, TweetCandidate, _]
-  ] = Seq(namesFeatureHydrator)
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(),
-    HomeMixerAlertConfig.BusinessHours.defaultEmptyResponseRateAlert()
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/ConversationServiceCandidatePipelineConfigBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/ConversationServiceCandidatePipelineConfigBuilder.scala
deleted file mode 100644
index bb55f85e3..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/ConversationServiceCandidatePipelineConfigBuilder.scala
+++ /dev/null
@@ -1,34 +0,0 @@
-package com.twitter.home_mixer.candidate_pipeline
-
-import com.twitter.home_mixer.functional_component.feature_hydrator.NamesFeatureHydrator
-import com.twitter.home_mixer.functional_component.feature_hydrator.TweetypieFeatureHydrator
-import com.twitter.home_mixer.functional_component.filter.InvalidSubscriptionTweetFilter
-import com.twitter.product_mixer.component_library.candidate_source.tweetconvosvc.ConversationServiceCandidateSource
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.decorator.CandidateDecorator
-import com.twitter.product_mixer.core.functional_component.gate.BaseGate
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ConversationServiceCandidatePipelineConfigBuilder[Query <: PipelineQuery] @Inject() (
-  conversationServiceCandidateSource: ConversationServiceCandidateSource,
-  tweetypieFeatureHydrator: TweetypieFeatureHydrator,
-  invalidSubscriptionTweetFilter: InvalidSubscriptionTweetFilter,
-  namesFeatureHydrator: NamesFeatureHydrator) {
-
-  def build(
-    gates: Seq[BaseGate[Query]] = Seq.empty,
-    decorator: Option[CandidateDecorator[Query, TweetCandidate]] = None
-  ): ConversationServiceCandidatePipelineConfig[Query] = {
-    new ConversationServiceCandidatePipelineConfig(
-      conversationServiceCandidateSource,
-      tweetypieFeatureHydrator,
-      namesFeatureHydrator,
-      invalidSubscriptionTweetFilter,
-      gates,
-      decorator
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/ConversationServiceResponseFeatureTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/ConversationServiceResponseFeatureTransformer.scala
deleted file mode 100644
index 154c080ad..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/ConversationServiceResponseFeatureTransformer.scala
+++ /dev/null
@@ -1,39 +0,0 @@
-package com.twitter.home_mixer.candidate_pipeline
-
-import com.twitter.home_mixer.model.HomeFeatures._
-import com.twitter.product_mixer.component_library.candidate_source.tweetconvosvc.TweetWithConversationMetadata
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.timelineservice.suggests.thriftscala.SuggestType
-
-object ConversationServiceResponseFeatureTransformer
-    extends CandidateFeatureTransformer[TweetWithConversationMetadata] {
-
-  override val identifier: TransformerIdentifier =
-    TransformerIdentifier("ConversationServiceResponse")
-
-  override val features: Set[Feature[_, _]] = Set(
-    AuthorIdFeature,
-    InReplyToTweetIdFeature,
-    IsRetweetFeature,
-    SourceTweetIdFeature,
-    SourceUserIdFeature,
-    ConversationModuleFocalTweetIdFeature,
-    AncestorsFeature,
-    SuggestTypeFeature
-  )
-
-  override def transform(candidate: TweetWithConversationMetadata): FeatureMap = FeatureMapBuilder()
-    .add(AuthorIdFeature, candidate.userId)
-    .add(InReplyToTweetIdFeature, candidate.inReplyToTweetId)
-    .add(IsRetweetFeature, candidate.sourceTweetId.isDefined)
-    .add(SourceTweetIdFeature, candidate.sourceTweetId)
-    .add(SourceUserIdFeature, candidate.sourceUserId)
-    .add(ConversationModuleFocalTweetIdFeature, candidate.conversationId)
-    .add(AncestorsFeature, candidate.ancestors)
-    .add(SuggestTypeFeature, Some(SuggestType.RankedOrganicTweet))
-    .build()
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/EditedTweetsCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/EditedTweetsCandidatePipelineConfig.scala
deleted file mode 100644
index d9bb73695..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/EditedTweetsCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,84 +0,0 @@
-package com.twitter.home_mixer.candidate_pipeline
-
-import com.twitter.home_mixer.functional_component.candidate_source.StaleTweetsCacheCandidateSource
-import com.twitter.home_mixer.functional_component.decorator.urt.builder.HomeFeedbackActionInfoBuilder
-import com.twitter.home_mixer.functional_component.feature_hydrator.NamesFeatureHydrator
-import com.twitter.home_mixer.functional_component.query_transformer.EditedTweetsCandidatePipelineQueryTransformer
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.component_library.decorator.urt.UrtItemCandidateDecorator
-import com.twitter.product_mixer.component_library.decorator.urt.builder.contextual_ref.ContextualTweetRefBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.item.tweet.TweetCandidateUrtItemBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.metadata.EmptyClientEventInfoBuilder
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.BaseCandidateSource
-import com.twitter.product_mixer.core.functional_component.decorator.CandidateDecorator
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BaseCandidateFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.rtf.safety_level.TimelineFocalTweetSafetyLevel
-import com.twitter.product_mixer.core.model.marshalling.response.urt.contextual_ref.TweetHydrationContext
-import com.twitter.product_mixer.core.model.marshalling.response.urt.item.tweet.TweetItem
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.pipeline.candidate.DependentCandidatePipelineConfig
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Candidate Pipeline Config that fetches edited tweets from the Stale Tweets Cache
- */
-@Singleton
-case class EditedTweetsCandidatePipelineConfig @Inject() (
-  staleTweetsCacheCandidateSource: StaleTweetsCacheCandidateSource,
-  namesFeatureHydrator: NamesFeatureHydrator,
-  homeFeedbackActionInfoBuilder: HomeFeedbackActionInfoBuilder)
-    extends DependentCandidatePipelineConfig[
-      PipelineQuery,
-      Seq[Long],
-      Long,
-      TweetCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier = CandidatePipelineIdentifier("EditedTweets")
-
-  override val candidateSource: BaseCandidateSource[Seq[Long], Long] =
-    staleTweetsCacheCandidateSource
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[
-    PipelineQuery,
-    Seq[Long]
-  ] = EditedTweetsCandidatePipelineQueryTransformer
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    Long,
-    TweetCandidate
-  ] = { candidate => TweetCandidate(id = candidate) }
-
-  override val postFilterFeatureHydration: Seq[
-    BaseCandidateFeatureHydrator[PipelineQuery, TweetCandidate, _]
-  ] = Seq(namesFeatureHydrator)
-
-  override val decorator: Option[CandidateDecorator[PipelineQuery, TweetCandidate]] = {
-    val tweetItemBuilder = TweetCandidateUrtItemBuilder[PipelineQuery, TweetCandidate](
-      clientEventInfoBuilder = EmptyClientEventInfoBuilder,
-      entryIdToReplaceBuilder = Some((_, candidate, _) =>
-        Some(s"${TweetItem.TweetEntryNamespace}-${candidate.id.toString}")),
-      contextualTweetRefBuilder = Some(
-        ContextualTweetRefBuilder(
-          TweetHydrationContext(
-            // Apply safety level that includes canonical VF treatments that apply regardless of context.
-            safetyLevelOverride = Some(TimelineFocalTweetSafetyLevel),
-            outerTweetContext = None
-          )
-        )
-      ),
-      feedbackActionInfoBuilder = Some(homeFeedbackActionInfoBuilder)
-    )
-
-    Some(UrtItemCandidateDecorator(tweetItemBuilder))
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.5, 50, 60, 60)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/NewTweetsPillCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/NewTweetsPillCandidatePipelineConfig.scala
deleted file mode 100644
index e1a92b9ca..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/NewTweetsPillCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,123 +0,0 @@
-package com.twitter.home_mixer.candidate_pipeline
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.functional_component.gate.RequestContextNotGate
-import com.twitter.home_mixer.model.HomeFeatures.GetNewerFeature
-import com.twitter.home_mixer.model.request.DeviceContext
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.component_library.decorator.urt.UrtItemCandidateDecorator
-import com.twitter.product_mixer.component_library.decorator.urt.builder.item.alert.DurationParamBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.item.alert.ShowAlertCandidateUrtItemBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.item.alert.StaticShowAlertColorConfigurationBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.item.alert.StaticShowAlertDisplayLocationBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.item.alert.StaticShowAlertIconDisplayInfoBuilder
-import com.twitter.product_mixer.component_library.gate.FeatureGate
-import com.twitter.product_mixer.component_library.model.candidate.ShowAlertCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.candidate_source.CandidateSource
-import com.twitter.product_mixer.core.functional_component.candidate_source.StaticCandidateSource
-import com.twitter.product_mixer.core.functional_component.configapi.StaticParam
-import com.twitter.product_mixer.core.functional_component.decorator.CandidateDecorator
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.item.alert.BaseDurationBuilder
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.CandidateSourceIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.urt.alert.NewTweets
-import com.twitter.product_mixer.core.model.marshalling.response.urt.alert.ShowAlertColorConfiguration
-import com.twitter.product_mixer.core.model.marshalling.response.urt.alert.ShowAlertIconDisplayInfo
-import com.twitter.product_mixer.core.model.marshalling.response.urt.alert.Top
-import com.twitter.product_mixer.core.model.marshalling.response.urt.alert.UpArrow
-import com.twitter.product_mixer.core.model.marshalling.response.urt.color.TwitterBlueRosettaColor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.color.WhiteRosettaColor
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.pipeline.candidate.DependentCandidatePipelineConfig
-import com.twitter.util.Duration
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Candidate Pipeline Config that creates the New Tweets Pill
- */
-@Singleton
-class NewTweetsPillCandidatePipelineConfig[Query <: PipelineQuery with HasDeviceContext] @Inject() (
-) extends DependentCandidatePipelineConfig[
-      Query,
-      Unit,
-      ShowAlertCandidate,
-      ShowAlertCandidate
-    ] {
-  import NewTweetsPillCandidatePipelineConfig._
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("NewTweetsPill")
-
-  override val gates: Seq[Gate[Query]] = Seq(
-    RequestContextNotGate(Seq(DeviceContext.RequestContext.PullToRefresh)),
-    FeatureGate.fromFeature(GetNewerFeature)
-  )
-
-  override val candidateSource: CandidateSource[Unit, ShowAlertCandidate] =
-    StaticCandidateSource(
-      CandidateSourceIdentifier(identifier.name),
-      Seq(ShowAlertCandidate(id = identifier.name, userIds = Seq.empty))
-    )
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[Query, Unit] = { _ => Unit }
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    ShowAlertCandidate,
-    ShowAlertCandidate
-  ] = { candidate => candidate }
-
-  override val decorator: Option[CandidateDecorator[Query, ShowAlertCandidate]] = {
-    val triggerDelayBuilder = new BaseDurationBuilder[Query] {
-      override def apply(
-        query: Query,
-        candidate: ShowAlertCandidate,
-        features: FeatureMap
-      ): Option[Duration] = {
-        val delay = query.deviceContext.flatMap(_.requestContextValue) match {
-          case Some(DeviceContext.RequestContext.TweetSelfThread) => 0.millis
-          case Some(DeviceContext.RequestContext.ManualRefresh) => 0.millis
-          case _ => TriggerDelay
-        }
-
-        Some(delay)
-      }
-    }
-
-    val homeShowAlertCandidateBuilder = ShowAlertCandidateUrtItemBuilder(
-      alertType = NewTweets,
-      colorConfigBuilder = StaticShowAlertColorConfigurationBuilder(DefaultColorConfig),
-      displayLocationBuilder = StaticShowAlertDisplayLocationBuilder(Top),
-      triggerDelayBuilder = Some(triggerDelayBuilder),
-      displayDurationBuilder = Some(DurationParamBuilder(StaticParam(DisplayDuration))),
-      iconDisplayInfoBuilder = Some(StaticShowAlertIconDisplayInfoBuilder(DefaultIconDisplayInfo))
-    )
-
-    Some(UrtItemCandidateDecorator(homeShowAlertCandidateBuilder))
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(),
-    HomeMixerAlertConfig.BusinessHours.defaultEmptyResponseRateAlert()
-  )
-}
-
-object NewTweetsPillCandidatePipelineConfig {
-  val DefaultColorConfig: ShowAlertColorConfiguration = ShowAlertColorConfiguration(
-    background = TwitterBlueRosettaColor,
-    text = WhiteRosettaColor,
-    border = Some(WhiteRosettaColor)
-  )
-
-  val DefaultIconDisplayInfo: ShowAlertIconDisplayInfo =
-    ShowAlertIconDisplayInfo(icon = UpArrow, tint = WhiteRosettaColor)
-
-  // Unlimited display time (until user takes action)
-  val DisplayDuration = -1.millisecond
-  val TriggerDelay = 4.minutes
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/TimelineServiceResponseFeatureTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/TimelineServiceResponseFeatureTransformer.scala
deleted file mode 100644
index 3f0a932c9..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline/TimelineServiceResponseFeatureTransformer.scala
+++ /dev/null
@@ -1,34 +0,0 @@
-package com.twitter.home_mixer.candidate_pipeline
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceUserIdFeature
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.timelineservice.{thriftscala => t}
-
-object TimelineServiceResponseFeatureTransformer extends CandidateFeatureTransformer[t.Tweet] {
-
-  override val identifier: TransformerIdentifier = TransformerIdentifier("TimelineServiceResponse")
-
-  override val features: Set[Feature[_, _]] = Set(
-    AuthorIdFeature,
-    InReplyToTweetIdFeature,
-    IsRetweetFeature,
-    SourceTweetIdFeature,
-    SourceUserIdFeature,
-  )
-
-  override def transform(candidate: t.Tweet): FeatureMap = FeatureMapBuilder()
-    .add(AuthorIdFeature, candidate.userId)
-    .add(InReplyToTweetIdFeature, candidate.inReplyToStatusId)
-    .add(IsRetweetFeature, candidate.sourceStatusId.isDefined)
-    .add(SourceTweetIdFeature, candidate.sourceStatusId)
-    .add(SourceUserIdFeature, candidate.sourceUserId)
-    .build()
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/controller/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/controller/BUILD.bazel
deleted file mode 100644
index dfaff319d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/controller/BUILD.bazel
+++ /dev/null
@@ -1,17 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "finatra/thrift/src/main/scala/com/twitter/finatra/thrift:controller",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/service",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/controllers",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/configapi",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/service/debug_query",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/service/urt",
-        "snowflake/src/main/scala/com/twitter/snowflake/id",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/controller/HomeThriftController.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/controller/HomeThriftController.scala
deleted file mode 100644
index fc1b7770e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/controller/HomeThriftController.scala
+++ /dev/null
@@ -1,51 +0,0 @@
-package com.twitter.home_mixer.controller
-
-import com.twitter.finatra.thrift.Controller
-import com.twitter.home_mixer.marshaller.request.HomeMixerRequestUnmarshaller
-import com.twitter.home_mixer.model.request.HomeMixerRequest
-import com.twitter.home_mixer.service.ScoredTweetsService
-import com.twitter.home_mixer.{thriftscala => t}
-import com.twitter.product_mixer.core.controllers.DebugTwitterContext
-import com.twitter.product_mixer.core.functional_component.configapi.ParamsBuilder
-import com.twitter.product_mixer.core.service.debug_query.DebugQueryService
-import com.twitter.product_mixer.core.service.urt.UrtService
-import com.twitter.snowflake.id.SnowflakeId
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.configapi.Params
-import javax.inject.Inject
-
-class HomeThriftController @Inject() (
-  homeRequestUnmarshaller: HomeMixerRequestUnmarshaller,
-  urtService: UrtService,
-  scoredTweetsService: ScoredTweetsService,
-  paramsBuilder: ParamsBuilder)
-    extends Controller(t.HomeMixer)
-    with DebugTwitterContext {
-
-  handle(t.HomeMixer.GetUrtResponse) { args: t.HomeMixer.GetUrtResponse.Args =>
-    val request = homeRequestUnmarshaller(args.request)
-    val params = buildParams(request)
-    Stitch.run(urtService.getUrtResponse[HomeMixerRequest](request, params))
-  }
-
-  handle(t.HomeMixer.GetScoredTweetsResponse) { args: t.HomeMixer.GetScoredTweetsResponse.Args =>
-    val request = homeRequestUnmarshaller(args.request)
-    val params = buildParams(request)
-    withDebugTwitterContext(request.clientContext) {
-      Stitch.run(scoredTweetsService.getScoredTweetsResponse[HomeMixerRequest](request, params))
-    }
-  }
-
-  private def buildParams(request: HomeMixerRequest): Params = {
-    val userAgeOpt = request.clientContext.userId.map { userId =>
-      SnowflakeId.timeFromIdOpt(userId).map(_.untilNow.inDays).getOrElse(Int.MaxValue)
-    }
-    val fsCustomMapInput = userAgeOpt.map("account_age_in_days" -> _).toMap
-    paramsBuilder.build(
-      clientContext = request.clientContext,
-      product = request.product,
-      featureOverrides = request.debugParams.flatMap(_.featureOverrides).getOrElse(Map.empty),
-      fsCustomMapInput = fsCustomMapInput
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/federated/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/federated/BUILD.bazel
deleted file mode 100644
index 30ee81acc..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/federated/BUILD.bazel
+++ /dev/null
@@ -1,24 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/configapi",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/product",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product/registry",
-        "product-mixer/core/src/main/thrift/com/twitter/product_mixer/core:thrift-scala",
-        "src/thrift/com/twitter/gizmoduck:thrift-scala",
-        "src/thrift/com/twitter/timelines/render:thrift-scala",
-        "stitch/stitch-repo/src/main/scala",
-        "strato/config/columns/auth-context:auth-context-strato-client",
-        "strato/config/columns/gizmoduck:gizmoduck-strato-client",
-        "strato/config/src/thrift/com/twitter/strato/graphql/timelines:graphql-timelines-scala",
-        "strato/src/main/scala/com/twitter/strato/callcontext",
-        "strato/src/main/scala/com/twitter/strato/fed",
-        "strato/src/main/scala/com/twitter/strato/fed/server",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/federated/HomeMixerColumn.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/federated/HomeMixerColumn.scala
deleted file mode 100644
index 0ef27b7a0..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/federated/HomeMixerColumn.scala
+++ /dev/null
@@ -1,217 +0,0 @@
-package com.twitter.home_mixer.federated
-
-import com.twitter.gizmoduck.{thriftscala => gd}
-import com.twitter.home_mixer.marshaller.request.HomeMixerRequestUnmarshaller
-import com.twitter.home_mixer.model.request.HomeMixerRequest
-import com.twitter.home_mixer.{thriftscala => hm}
-import com.twitter.product_mixer.core.functional_component.configapi.ParamsBuilder
-import com.twitter.product_mixer.core.pipeline.product.ProductPipelineRequest
-import com.twitter.product_mixer.core.pipeline.product.ProductPipelineResult
-import com.twitter.product_mixer.core.product.registry.ProductPipelineRegistry
-import com.twitter.product_mixer.core.{thriftscala => pm}
-import com.twitter.stitch.Arrow
-import com.twitter.stitch.Stitch
-import com.twitter.strato.callcontext.CallContext
-import com.twitter.strato.catalog.OpMetadata
-import com.twitter.strato.config._
-import com.twitter.strato.data._
-import com.twitter.strato.fed.StratoFed
-import com.twitter.strato.generated.client.auth_context.AuditIpClientColumn
-import com.twitter.strato.generated.client.gizmoduck.CompositeOnUserClientColumn
-import com.twitter.strato.graphql.timelines.{thriftscala => gql}
-import com.twitter.strato.thrift.ScroogeConv
-import com.twitter.timelines.render.{thriftscala => tr}
-import com.twitter.util.Try
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class HomeMixerColumn @Inject() (
-  homeMixerRequestUnmarshaller: HomeMixerRequestUnmarshaller,
-  compositeOnUserClientColumn: CompositeOnUserClientColumn,
-  auditIpClientColumn: AuditIpClientColumn,
-  paramsBuilder: ParamsBuilder,
-  productPipelineRegistry: ProductPipelineRegistry)
-    extends StratoFed.Column(HomeMixerColumn.Path)
-    with StratoFed.Fetch.Arrow {
-
-  override val contactInfo: ContactInfo = ContactInfo(
-    contactEmail = "",
-    ldapGroup = "",
-    slackRoomId = ""
-  )
-
-  override val metadata: OpMetadata =
-    OpMetadata(
-      lifecycle = Some(Lifecycle.Production),
-      description =
-        Some(Description.PlainText("Federated Strato column for Timelines served via Home Mixer"))
-    )
-
-  private val bouncerAccess: Seq[Policy] = Seq(BouncerAccess())
-  private val finatraTestServiceIdentifiers: Seq[Policy] = Seq(
-    ServiceIdentifierPattern(
-      role = "",
-      service = "",
-      env = "",
-      zone = Seq(""))
-  )
-
-  override val policy: Policy = AnyOf(bouncerAccess ++ finatraTestServiceIdentifiers)
-
-  override type Key = gql.TimelineKey
-  override type View = gql.HomeTimelineView
-  override type Value = tr.Timeline
-
-  override val keyConv: Conv[Key] = ScroogeConv.fromStruct[gql.TimelineKey]
-  override val viewConv: Conv[View] = ScroogeConv.fromStruct[gql.HomeTimelineView]
-  override val valueConv: Conv[Value] = ScroogeConv.fromStruct[tr.Timeline]
-
-  private def createHomeMixerRequestArrow(
-    compositeOnUserClientColumn: CompositeOnUserClientColumn,
-    auditIpClientColumn: AuditIpClientColumn
-  ): Arrow[(Key, View), hm.HomeMixerRequest] = {
-
-    val populateUserRolesAndIp: Arrow[(Key, View), (Option[Set[String]], Option[String])] = {
-      val gizmoduckView: (gd.LookupContext, Set[gd.QueryFields]) =
-        (gd.LookupContext(), Set(gd.QueryFields.Roles))
-
-      val populateUserRoles = Arrow
-        .flatMap[(Key, View), Option[Set[String]]] { _ =>
-          Stitch.collect {
-            CallContext.twitterUserId.map { userId =>
-              compositeOnUserClientColumn.fetcher
-                .callStack(HomeMixerColumn.FetchCallstack)
-                .fetch(userId, gizmoduckView).map(_.v)
-                .map {
-                  _.flatMap(_.roles.map(_.roles.toSet)).getOrElse(Set.empty)
-                }
-            }
-          }
-        }
-
-      val populateIpAddress = Arrow
-        .flatMap[(Key, View), Option[String]](_ =>
-          auditIpClientColumn.fetcher
-            .callStack(HomeMixerColumn.FetchCallstack)
-            .fetch((), ()).map(_.v))
-
-      Arrow.join(
-        populateUserRoles,
-        populateIpAddress
-      )
-    }
-
-    Arrow.zipWithArg(populateUserRolesAndIp).map {
-      case ((key, view), (roles, ipAddress)) =>
-        val deviceContextOpt = Some(
-          hm.DeviceContext(
-            isPolling = CallContext.isPolling,
-            requestContext = view.requestContext,
-            latestControlAvailable = view.latestControlAvailable,
-            autoplayEnabled = view.autoplayEnabled
-          ))
-        val seenTweetIds = view.seenTweetIds.filter(_.nonEmpty)
-
-        val (product, productContext) = key match {
-          case gql.TimelineKey.HomeTimeline(_) | gql.TimelineKey.HomeTimelineV2(_) =>
-            (
-              hm.Product.ForYou,
-              hm.ProductContext.ForYou(
-                hm.ForYou(
-                  deviceContextOpt,
-                  seenTweetIds,
-                  view.dspClientContext,
-                  view.pushToHomeTweetId
-                )
-              ))
-          case gql.TimelineKey.HomeLatestTimeline(_) | gql.TimelineKey.HomeLatestTimelineV2(_) =>
-            (
-              hm.Product.Following,
-              hm.ProductContext.Following(
-                hm.Following(deviceContextOpt, seenTweetIds, view.dspClientContext)))
-          case gql.TimelineKey.CreatorSubscriptionsTimeline(_) =>
-            (
-              hm.Product.Subscribed,
-              hm.ProductContext.Subscribed(hm.Subscribed(deviceContextOpt, seenTweetIds)))
-          case _ => throw new UnsupportedOperationException(s"Unknown product: $key")
-        }
-
-        val clientContext = pm.ClientContext(
-          userId = CallContext.twitterUserId,
-          guestId = CallContext.guestId,
-          guestIdAds = CallContext.guestIdAds,
-          guestIdMarketing = CallContext.guestIdMarketing,
-          appId = CallContext.clientApplicationId,
-          ipAddress = ipAddress,
-          userAgent = CallContext.userAgent,
-          countryCode = CallContext.requestCountryCode,
-          languageCode = CallContext.requestLanguageCode,
-          isTwoffice = CallContext.isInternalOrTwoffice,
-          userRoles = roles,
-          deviceId = CallContext.deviceId,
-          mobileDeviceId = CallContext.mobileDeviceId,
-          mobileDeviceAdId = CallContext.adId,
-          limitAdTracking = CallContext.limitAdTracking
-        )
-
-        hm.HomeMixerRequest(
-          clientContext = clientContext,
-          product = product,
-          productContext = Some(productContext),
-          maxResults = Try(view.count.get.toInt).toOption.orElse(HomeMixerColumn.MaxCount),
-          cursor = view.cursor.filter(_.nonEmpty)
-        )
-    }
-  }
-
-  override val fetch: Arrow[(Key, View), Result[Value]] = {
-    val transformThriftIntoPipelineRequest: Arrow[
-      (Key, View),
-      ProductPipelineRequest[HomeMixerRequest]
-    ] = {
-      Arrow
-        .identity[(Key, View)]
-        .andThen {
-          createHomeMixerRequestArrow(compositeOnUserClientColumn, auditIpClientColumn)
-        }
-        .map {
-          case thriftRequest =>
-            val request = homeMixerRequestUnmarshaller(thriftRequest)
-            val params = paramsBuilder.build(
-              clientContext = request.clientContext,
-              product = request.product,
-              featureOverrides =
-                request.debugParams.flatMap(_.featureOverrides).getOrElse(Map.empty),
-            )
-            ProductPipelineRequest(request, params)
-        }
-    }
-
-    val underlyingProduct: Arrow[
-      ProductPipelineRequest[HomeMixerRequest],
-      ProductPipelineResult[tr.TimelineResponse]
-    ] = Arrow
-      .identity[ProductPipelineRequest[HomeMixerRequest]]
-      .map { pipelineRequest =>
-        val pipelineArrow = productPipelineRegistry
-          .getProductPipeline[HomeMixerRequest, tr.TimelineResponse](
-            pipelineRequest.request.product)
-          .arrow
-        (pipelineArrow, pipelineRequest)
-      }.applyArrow
-
-    transformThriftIntoPipelineRequest.andThen(underlyingProduct).map {
-      _.result match {
-        case Some(result) => found(result.timeline)
-        case _ => missing
-      }
-    }
-  }
-}
-
-object HomeMixerColumn {
-  val Path = "home-mixer/homeMixer.Timeline"
-  private val FetchCallstack = s"$Path:fetch"
-  private val MaxCount: Option[Int] = Some(100)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/candidate_source/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/candidate_source/BUILD.bazel
deleted file mode 100644
index a40bd4030..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/candidate_source/BUILD.bazel
+++ /dev/null
@@ -1,19 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/javax/inject:javax.inject",
-        "finagle/finagle-memcached/src/main/scala",
-        "finatra/inject/inject-core/src/main/scala",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/candidate_source",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-        "src/thrift/com/twitter/search:earlybird-scala",
-        "stitch/stitch-timelineservice/src/main/scala",
-    ],
-    exports = [
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/candidate_source",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/candidate_source/EarlybirdCandidateSource.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/candidate_source/EarlybirdCandidateSource.scala
deleted file mode 100644
index 2ddd05814..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/candidate_source/EarlybirdCandidateSource.scala
+++ /dev/null
@@ -1,44 +0,0 @@
-package com.twitter.home_mixer.functional_component.candidate_source
-
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.candidate_source.CandidateSourceWithExtractedFeatures
-import com.twitter.product_mixer.core.functional_component.candidate_source.CandidatesWithSourceFeatures
-import com.twitter.product_mixer.core.model.common.identifier.CandidateSourceIdentifier
-import com.twitter.search.earlybird.{thriftscala => t}
-import com.twitter.stitch.Stitch
-import javax.inject.Inject
-import javax.inject.Singleton
-
-case object EarlybirdResponseTruncatedFeature
-    extends FeatureWithDefaultOnFailure[t.EarlybirdRequest, Boolean] {
-  override val defaultValue: Boolean = false
-}
-
-case object EarlybirdBottomTweetFeature
-    extends FeatureWithDefaultOnFailure[t.EarlybirdRequest, Option[Long]] {
-  override val defaultValue: Option[Long] = None
-}
-
-@Singleton
-case class EarlybirdCandidateSource @Inject() (
-  earlybird: t.EarlybirdService.MethodPerEndpoint)
-    extends CandidateSourceWithExtractedFeatures[t.EarlybirdRequest, t.ThriftSearchResult] {
-
-  override val identifier = CandidateSourceIdentifier("Earlybird")
-
-  override def apply(
-    request: t.EarlybirdRequest
-  ): Stitch[CandidatesWithSourceFeatures[t.ThriftSearchResult]] = {
-    Stitch.callFuture(earlybird.search(request)).map { response =>
-      val candidates = response.searchResults.map(_.results).getOrElse(Seq.empty)
-
-      val features = FeatureMapBuilder()
-        .add(EarlybirdResponseTruncatedFeature, candidates.size == request.searchQuery.numResults)
-        .add(EarlybirdBottomTweetFeature, candidates.lastOption.map(_.id))
-        .build()
-
-      CandidatesWithSourceFeatures(candidates, features)
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/candidate_source/StaleTweetsCacheCandidateSource.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/candidate_source/StaleTweetsCacheCandidateSource.scala
deleted file mode 100644
index 9a346129d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/candidate_source/StaleTweetsCacheCandidateSource.scala
+++ /dev/null
@@ -1,30 +0,0 @@
-package com.twitter.home_mixer.functional_component.candidate_source
-
-import com.google.inject.name.Named
-import com.twitter.finagle.memcached.{Client => MemcachedClient}
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.StaleTweetsCache
-import com.twitter.product_mixer.core.functional_component.candidate_source.CandidateSource
-import com.twitter.product_mixer.core.model.common.identifier.CandidateSourceIdentifier
-import com.twitter.stitch.Stitch
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class StaleTweetsCacheCandidateSource @Inject() (
-  @Named(StaleTweetsCache) staleTweetsCache: MemcachedClient)
-    extends CandidateSource[Seq[Long], Long] {
-
-  override val identifier: CandidateSourceIdentifier = CandidateSourceIdentifier("StaleTweetsCache")
-
-  private val StaleTweetsCacheKeyPrefix = "v1_"
-
-  override def apply(request: Seq[Long]): Stitch[Seq[Long]] = {
-    val keys = request.map(StaleTweetsCacheKeyPrefix + _)
-
-    Stitch.callFuture(staleTweetsCache.get(keys).map { tweets =>
-      tweets.map {
-        case (k, _) => k.replaceFirst(StaleTweetsCacheKeyPrefix, "").toLong
-      }.toSeq
-    })
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/BUILD.bazel
deleted file mode 100644
index 4df69c9f9..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/BUILD.bazel
+++ /dev/null
@@ -1,28 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "finagle/finagle-core/src/main",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/decorator/urt",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate",
-        "product-mixer/core/src/main/java/com/twitter/product_mixer/core/product/guice/scope",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/decorator/urt/builder",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/marshaller/response/urt",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-        "src/scala/com/twitter/suggests/controller_data",
-        "src/thrift/com/twitter/suggests/controller_data:controller_data-scala",
-        "src/thrift/com/twitter/timelinescorer/common/scoredtweetcandidate:thrift-scala",
-        "src/thrift/com/twitter/timelineservice/server/suggests/logging:thrift-scala",
-        "stringcenter/client",
-        "stringcenter/client/src/main/java",
-        "timelines/src/main/scala/com/twitter/timelines/injection/scribe",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/HomeConversationServiceCandidateDecorator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/HomeConversationServiceCandidateDecorator.scala
deleted file mode 100644
index d145391d4..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/HomeConversationServiceCandidateDecorator.scala
+++ /dev/null
@@ -1,51 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator
-
-import com.twitter.home_mixer.functional_component.decorator.builder.HomeConversationModuleMetadataBuilder
-import com.twitter.home_mixer.functional_component.decorator.builder.HomeTimelinesScoreInfoBuilder
-import com.twitter.home_mixer.functional_component.decorator.urt.builder.HomeFeedbackActionInfoBuilder
-import com.twitter.home_mixer.model.HomeFeatures.ConversationModuleFocalTweetIdFeature
-import com.twitter.product_mixer.component_library.decorator.urt.UrtItemCandidateDecorator
-import com.twitter.product_mixer.component_library.decorator.urt.UrtMultipleModulesDecorator
-import com.twitter.product_mixer.component_library.decorator.urt.builder.item.tweet.TweetCandidateUrtItemBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.metadata.ClientEventInfoBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.timeline_module.StaticModuleDisplayTypeBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.timeline_module.TimelineModuleBuilder
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.model.marshalling.response.urt.EntryNamespace
-import com.twitter.product_mixer.core.model.marshalling.response.urt.timeline_module.VerticalConversation
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelines.injection.scribe.InjectionScribeUtil
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-
-object HomeConversationServiceCandidateDecorator {
-
-  private val ConversationModuleNamespace = EntryNamespace("home-conversation")
-
-  def apply(
-    homeFeedbackActionInfoBuilder: HomeFeedbackActionInfoBuilder
-  ): Some[UrtMultipleModulesDecorator[PipelineQuery, TweetCandidate, Long]] = {
-    val suggestType = st.SuggestType.RankedOrganicTweet
-    val component = InjectionScribeUtil.scribeComponent(suggestType).get
-    val clientEventInfoBuilder = ClientEventInfoBuilder(component)
-    val tweetItemBuilder = TweetCandidateUrtItemBuilder(
-      clientEventInfoBuilder = clientEventInfoBuilder,
-      timelinesScoreInfoBuilder = Some(HomeTimelinesScoreInfoBuilder),
-      feedbackActionInfoBuilder = Some(homeFeedbackActionInfoBuilder)
-    )
-
-    val moduleBuilder = TimelineModuleBuilder(
-      entryNamespace = ConversationModuleNamespace,
-      clientEventInfoBuilder = clientEventInfoBuilder,
-      displayTypeBuilder = StaticModuleDisplayTypeBuilder(VerticalConversation),
-      metadataBuilder = Some(HomeConversationModuleMetadataBuilder())
-    )
-
-    Some(
-      UrtMultipleModulesDecorator(
-        urtItemCandidateDecorator = UrtItemCandidateDecorator(tweetItemBuilder),
-        moduleBuilder = moduleBuilder,
-        groupByKey = (_, _, candidateFeatures) =>
-          candidateFeatures.getOrElse(ConversationModuleFocalTweetIdFeature, None)
-      ))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/HomeQueryTypePredicates.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/HomeQueryTypePredicates.scala
deleted file mode 100644
index a79543269..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/HomeQueryTypePredicates.scala
+++ /dev/null
@@ -1,18 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator
-
-import com.twitter.home_mixer.model.HomeFeatures._
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-
-object HomeQueryTypePredicates {
-  private[this] val QueryPredicates: Seq[(String, FeatureMap => Boolean)] = Seq(
-    ("request", _ => true),
-    ("get_initial", _.getOrElse(GetInitialFeature, false)),
-    ("get_newer", _.getOrElse(GetNewerFeature, false)),
-    ("get_older", _.getOrElse(GetOlderFeature, false)),
-    ("pull_to_refresh", _.getOrElse(PullToRefreshFeature, false)),
-    ("request_context_launch", _.getOrElse(IsLaunchRequestFeature, false)),
-    ("request_context_foreground", _.getOrElse(IsForegroundRequestFeature, false))
-  )
-
-  val PredicateMap = QueryPredicates.toMap
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/BUILD.bazel
deleted file mode 100644
index cb59d1d73..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/BUILD.bazel
+++ /dev/null
@@ -1,26 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/com/twitter/bijection:scrooge",
-        "finagle/finagle-core/src/main",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "joinkey/src/main/scala/com/twitter/joinkey/context",
-        "joinkey/src/main/thrift/com/twitter/joinkey/context:joinkey-context-scala",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/decorator/urt/builder",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/marshaller/response/urt",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-        "src/scala/com/twitter/suggests/controller_data",
-        "src/thrift/com/twitter/suggests/controller_data:controller_data-scala",
-        "src/thrift/com/twitter/timelinescorer/common/scoredtweetcandidate:thrift-scala",
-        "src/thrift/com/twitter/timelineservice/server/internal:thrift-scala",
-        "src/thrift/com/twitter/timelineservice/server/suggests/logging:thrift-scala",
-        "timelinemixer/server/src/main/scala/com/twitter/timelinemixer/injection/model/candidate",
-        "timelines/src/main/scala/com/twitter/timelines/injection/scribe",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/HomeAdsClientEventDetailsBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/HomeAdsClientEventDetailsBuilder.scala
deleted file mode 100644
index eb072f135..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/HomeAdsClientEventDetailsBuilder.scala
+++ /dev/null
@@ -1,46 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.builder
-
-import com.twitter.finagle.tracing.Trace
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.metadata.BaseClientEventDetailsBuilder
-import com.twitter.product_mixer.core.model.common.UniversalNoun
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.ClientEventDetails
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.TimelinesDetails
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.suggests.controller_data.home_tweets.v1.{thriftscala => v1ht}
-import com.twitter.suggests.controller_data.home_tweets.{thriftscala => ht}
-import com.twitter.suggests.controller_data.thriftscala.ControllerData
-import com.twitter.suggests.controller_data.v2.thriftscala.{ControllerData => ControllerDataV2}
-
-case class HomeAdsClientEventDetailsBuilder(injectionType: Option[String])
-    extends BaseClientEventDetailsBuilder[PipelineQuery, UniversalNoun[Any]] {
-
-  override def apply(
-    query: PipelineQuery,
-    candidate: UniversalNoun[Any],
-    candidateFeatures: FeatureMap
-  ): Option[ClientEventDetails] = {
-    val homeTweetsControllerDataV1 = v1ht.HomeTweetsControllerData(
-      tweetTypesBitmap = 0L,
-      traceId = Some(Trace.id.traceId.toLong),
-      requestJoinId = None)
-
-    val serializedControllerData = HomeClientEventDetailsBuilder.ControllerDataSerializer(
-      ControllerData.V2(
-        ControllerDataV2.HomeTweets(ht.HomeTweetsControllerData.V1(homeTweetsControllerDataV1))))
-
-    val clientEventDetails = ClientEventDetails(
-      conversationDetails = None,
-      timelinesDetails = Some(
-        TimelinesDetails(
-          injectionType = injectionType,
-          controllerData = Some(serializedControllerData),
-          sourceData = None)),
-      articleDetails = None,
-      liveEventDetails = None,
-      commerceDetails = None
-    )
-
-    Some(clientEventDetails)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/HomeClientEventDetailsBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/HomeClientEventDetailsBuilder.scala
deleted file mode 100644
index 2e4c60d25..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/HomeClientEventDetailsBuilder.scala
+++ /dev/null
@@ -1,92 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.builder
-
-import com.twitter.bijection.Base64String
-import com.twitter.bijection.scrooge.BinaryScalaCodec
-import com.twitter.bijection.{Injection => Serializer}
-import com.twitter.finagle.tracing.Trace
-import com.twitter.home_mixer.model.HomeFeatures.CandidateSourceIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.PositionFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.joinkey.context.RequestJoinKeyContext
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.metadata.BaseClientEventDetailsBuilder
-import com.twitter.product_mixer.core.model.common.UniversalNoun
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.ClientEventDetails
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.TimelinesDetails
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.suggests.controller_data.Home
-import com.twitter.suggests.controller_data.TweetTypeGenerator
-import com.twitter.suggests.controller_data.home_tweets.v1.{thriftscala => v1ht}
-import com.twitter.suggests.controller_data.home_tweets.{thriftscala => ht}
-import com.twitter.suggests.controller_data.thriftscala.ControllerData
-import com.twitter.suggests.controller_data.v2.thriftscala.{ControllerData => ControllerDataV2}
-
-object HomeClientEventDetailsBuilder {
-  implicit val ByteSerializer: Serializer[ControllerData, Array[Byte]] =
-    BinaryScalaCodec(ControllerData)
-
-  val ControllerDataSerializer: Serializer[ControllerData, String] =
-    Serializer.connect[ControllerData, Array[Byte], Base64String, String]
-
-  /**
-   * define getRequestJoinId as a method(def) rather than a val because each new request
-   * needs to call the context to update the id.
-   */
-  private def getRequestJoinId(): Option[Long] =
-    RequestJoinKeyContext.current.flatMap(_.requestJoinId)
-}
-
-case class HomeClientEventDetailsBuilder[-Query <: PipelineQuery, -Candidate <: UniversalNoun[Any]](
-) extends BaseClientEventDetailsBuilder[Query, Candidate]
-    with TweetTypeGenerator[FeatureMap] {
-
-  import HomeClientEventDetailsBuilder._
-
-  override def apply(
-    query: Query,
-    candidate: Candidate,
-    candidateFeatures: FeatureMap
-  ): Option[ClientEventDetails] = {
-
-    val tweetTypesBitmaps = mkTweetTypesBitmaps(
-      Home.TweetTypeIdxMap,
-      HomeTweetTypePredicates.PredicateMap,
-      candidateFeatures)
-
-    val tweetTypesListBytes = mkItemTypesBitmapsV2(
-      Home.TweetTypeIdxMap,
-      HomeTweetTypePredicates.PredicateMap,
-      candidateFeatures)
-
-    val candidateSourceId =
-      candidateFeatures.getOrElse(CandidateSourceIdFeature, None).map(_.value.toByte)
-
-    val homeTweetsControllerDataV1 = v1ht.HomeTweetsControllerData(
-      tweetTypesBitmap = tweetTypesBitmaps.getOrElse(0, 0L),
-      tweetTypesBitmapContinued1 = tweetTypesBitmaps.get(1),
-      candidateTweetSourceId = candidateSourceId,
-      traceId = Some(Trace.id.traceId.toLong),
-      injectedPosition = candidateFeatures.getOrElse(PositionFeature, None),
-      tweetTypesListBytes = Some(tweetTypesListBytes),
-      requestJoinId = getRequestJoinId(),
-    )
-
-    val serializedControllerData = ControllerDataSerializer(
-      ControllerData.V2(
-        ControllerDataV2.HomeTweets(ht.HomeTweetsControllerData.V1(homeTweetsControllerDataV1))))
-
-    val clientEventDetails = ClientEventDetails(
-      conversationDetails = None,
-      timelinesDetails = Some(
-        TimelinesDetails(
-          injectionType = candidateFeatures.getOrElse(SuggestTypeFeature, None).map(_.name),
-          controllerData = Some(serializedControllerData),
-          sourceData = None)),
-      articleDetails = None,
-      liveEventDetails = None,
-      commerceDetails = None
-    )
-
-    Some(clientEventDetails)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/HomeClientEventInfoBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/HomeClientEventInfoBuilder.scala
deleted file mode 100644
index f79b0d931..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/HomeClientEventInfoBuilder.scala
+++ /dev/null
@@ -1,44 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.EntityTokenFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.metadata.BaseClientEventDetailsBuilder
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.metadata.BaseClientEventInfoBuilder
-import com.twitter.product_mixer.core.model.common.UniversalNoun
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.ClientEventInfo
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelines.injection.scribe.InjectionScribeUtil
-
-/**
- * Sets the [[ClientEventInfo]] with the `component` field set to the Suggest Type assigned to each candidate
- */
-case class HomeClientEventInfoBuilder[Query <: PipelineQuery, Candidate <: UniversalNoun[Any]](
-  detailsBuilder: Option[BaseClientEventDetailsBuilder[Query, Candidate]] = None)
-    extends BaseClientEventInfoBuilder[Query, Candidate] {
-
-  override def apply(
-    query: Query,
-    candidate: Candidate,
-    candidateFeatures: FeatureMap,
-    element: Option[String]
-  ): Option[ClientEventInfo] = {
-    val suggestType = candidateFeatures
-      .getOrElse(SuggestTypeFeature, None)
-      .getOrElse(throw new UnsupportedOperationException(s"No SuggestType was set"))
-
-    Some(
-      ClientEventInfo(
-        component = InjectionScribeUtil.scribeComponent(suggestType),
-        element = element,
-        details = detailsBuilder.flatMap(_.apply(query, candidate, candidateFeatures)),
-        action = None,
-        /**
-         * A backend entity encoded by the Client Entities Encoding Library.
-         * Placeholder string for now
-         */
-        entityToken = candidateFeatures.getOrElse(EntityTokenFeature, None)
-      )
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/HomeConversationModuleMetadataBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/HomeConversationModuleMetadataBuilder.scala
deleted file mode 100644
index dc6d51327..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/HomeConversationModuleMetadataBuilder.scala
+++ /dev/null
@@ -1,30 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.AncestorsFeature
-import com.twitter.product_mixer.component_library.model.candidate.BaseTweetCandidate
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.timeline_module.BaseModuleMetadataBuilder
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.marshalling.response.urt.timeline_module.ModuleConversationMetadata
-import com.twitter.product_mixer.core.model.marshalling.response.urt.timeline_module.ModuleMetadata
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-
-case class HomeConversationModuleMetadataBuilder[
-  -Query <: PipelineQuery,
-  -Candidate <: BaseTweetCandidate
-]() extends BaseModuleMetadataBuilder[Query, Candidate] {
-
-  override def apply(
-    query: Query,
-    candidates: Seq[CandidateWithFeatures[Candidate]]
-  ): ModuleMetadata = ModuleMetadata(
-    adsMetadata = None,
-    conversationMetadata = Some(
-      ModuleConversationMetadata(
-        allTweetIds = Some((candidates.last.candidate.id +:
-          candidates.last.features.getOrElse(AncestorsFeature, Seq.empty).map(_.tweetId)).reverse),
-        socialContext = None,
-        enableDeduplication = Some(true)
-      )),
-    gridCarouselMetadata = None
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/HomeTimelinesScoreInfoBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/HomeTimelinesScoreInfoBuilder.scala
deleted file mode 100644
index bc934414c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/HomeTimelinesScoreInfoBuilder.scala
+++ /dev/null
@@ -1,26 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.ScoreFeature
-import com.twitter.home_mixer.param.HomeGlobalParams.EnableSendScoresToClient
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.item.tweet.BaseTimelinesScoreInfoBuilder
-import com.twitter.product_mixer.core.model.marshalling.response.urt.item.tweet.TimelinesScoreInfo
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-
-object HomeTimelinesScoreInfoBuilder
-    extends BaseTimelinesScoreInfoBuilder[PipelineQuery, TweetCandidate] {
-
-  private val UndefinedTweetScore = -1.0
-
-  override def apply(
-    query: PipelineQuery,
-    candidate: TweetCandidate,
-    candidateFeatures: FeatureMap
-  ): Option[TimelinesScoreInfo] = {
-    if (query.params(EnableSendScoresToClient)) {
-      val score = candidateFeatures.getOrElse(ScoreFeature, None).getOrElse(UndefinedTweetScore)
-      Some(TimelinesScoreInfo(score))
-    } else None
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/HomeTweetTypePredicates.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/HomeTweetTypePredicates.scala
deleted file mode 100644
index 7272c360d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/HomeTweetTypePredicates.scala
+++ /dev/null
@@ -1,256 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.builder
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.model.HomeFeatures._
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.BasicTopicContextFunctionalityType
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RecommendationTopicContextFunctionalityType
-import com.twitter.timelinemixer.injection.model.candidate.SemanticCoreFeatures
-import com.twitter.tweetypie.{thriftscala => tpt}
-
-object HomeTweetTypePredicates {
-
-  /**
-   * IMPORTANT: Please avoid logging tweet types that are tied to sensitive
-   * internal author information / labels (e.g. blink labels, abuse labels, or geo-location).
-   */
-  private[this] val CandidatePredicates: Seq[(String, FeatureMap => Boolean)] = Seq(
-    ("with_candidate", _ => true),
-    ("retweet", _.getOrElse(IsRetweetFeature, false)),
-    ("reply", _.getOrElse(InReplyToTweetIdFeature, None).nonEmpty),
-    ("image", _.getOrElse(EarlybirdFeature, None).exists(_.hasImage)),
-    ("video", _.getOrElse(EarlybirdFeature, None).exists(_.hasVideo)),
-    ("link", _.getOrElse(EarlybirdFeature, None).exists(_.hasVisibleLink)),
-    ("quote", _.getOrElse(EarlybirdFeature, None).exists(_.hasQuote.contains(true))),
-    ("like_social_context", _.getOrElse(NonSelfFavoritedByUserIdsFeature, Seq.empty).nonEmpty),
-    ("protected", _.getOrElse(EarlybirdFeature, None).exists(_.isProtected)),
-    (
-      "has_exclusive_conversation_author_id",
-      _.getOrElse(ExclusiveConversationAuthorIdFeature, None).nonEmpty),
-    ("is_eligible_for_connect_boost", _ => false),
-    ("hashtag", _.getOrElse(EarlybirdFeature, None).exists(_.numHashtags > 0)),
-    ("has_scheduled_space", _.getOrElse(AudioSpaceMetaDataFeature, None).exists(_.isScheduled)),
-    ("has_recorded_space", _.getOrElse(AudioSpaceMetaDataFeature, None).exists(_.isRecorded)),
-    ("is_read_from_cache", _.getOrElse(IsReadFromCacheFeature, false)),
-    ("get_initial", _.getOrElse(GetInitialFeature, false)),
-    ("get_newer", _.getOrElse(GetNewerFeature, false)),
-    ("get_middle", _.getOrElse(GetMiddleFeature, false)),
-    ("get_older", _.getOrElse(GetOlderFeature, false)),
-    ("pull_to_refresh", _.getOrElse(PullToRefreshFeature, false)),
-    ("polling", _.getOrElse(PollingFeature, false)),
-    ("near_empty", _.getOrElse(ServedSizeFeature, None).exists(_ < 3)),
-    ("is_request_context_launch", _.getOrElse(IsLaunchRequestFeature, false)),
-    ("mutual_follow", _.getOrElse(EarlybirdFeature, None).exists(_.fromMutualFollow)),
-    (
-      "less_than_10_mins_since_lnpt",
-      _.getOrElse(LastNonPollingTimeFeature, None).exists(_.untilNow < 10.minutes)),
-    ("served_in_conversation_module", _.getOrElse(ServedInConversationModuleFeature, false)),
-    ("has_ticketed_space", _.getOrElse(AudioSpaceMetaDataFeature, None).exists(_.hasTickets)),
-    ("in_utis_top5", _.getOrElse(PositionFeature, None).exists(_ < 5)),
-    (
-      "conversation_module_has_2_displayed_tweets",
-      _.getOrElse(ConversationModule2DisplayedTweetsFeature, false)),
-    ("empty_request", _.getOrElse(ServedSizeFeature, None).exists(_ == 0)),
-    ("served_size_less_than_50", _.getOrElse(ServedSizeFeature, None).exists(_ < 50)),
-    (
-      "served_size_between_50_and_100",
-      _.getOrElse(ServedSizeFeature, None).exists(size => size >= 50 && size < 100)),
-    ("authored_by_contextual_user", _.getOrElse(AuthoredByContextualUserFeature, false)),
-    (
-      "is_self_thread_tweet",
-      _.getOrElse(ConversationFeature, None).exists(_.isSelfThreadTweet.contains(true))),
-    ("has_ancestors", _.getOrElse(AncestorsFeature, Seq.empty).nonEmpty),
-    ("full_scoring_succeeded", _.getOrElse(FullScoringSucceededFeature, false)),
-    ("served_size_less_than_20", _.getOrElse(ServedSizeFeature, None).exists(_ < 20)),
-    ("served_size_less_than_10", _.getOrElse(ServedSizeFeature, None).exists(_ < 10)),
-    ("served_size_less_than_5", _.getOrElse(ServedSizeFeature, None).exists(_ < 5)),
-    (
-      "account_age_less_than_30_minutes",
-      _.getOrElse(AccountAgeFeature, None).exists(_.untilNow < 30.minutes)),
-    ("conversation_module_has_gap", _.getOrElse(ConversationModuleHasGapFeature, false)),
-    (
-      "directed_at_user_is_in_first_degree",
-      _.getOrElse(EarlybirdFeature, None).exists(_.directedAtUserIdIsInFirstDegree.contains(true))),
-    (
-      "has_semantic_core_annotation",
-      _.getOrElse(EarlybirdFeature, None).exists(_.semanticCoreAnnotations.nonEmpty)),
-    ("is_request_context_foreground", _.getOrElse(IsForegroundRequestFeature, false)),
-    (
-      "account_age_less_than_1_day",
-      _.getOrElse(AccountAgeFeature, None).exists(_.untilNow < 1.day)),
-    (
-      "account_age_less_than_7_days",
-      _.getOrElse(AccountAgeFeature, None).exists(_.untilNow < 7.days)),
-    (
-      "part_of_utt",
-      _.getOrElse(EarlybirdFeature, None)
-        .exists(_.semanticCoreAnnotations.exists(_.exists(annotation =>
-          annotation.domainId == SemanticCoreFeatures.UnifiedTwitterTaxonomy)))),
-    (
-      "has_home_latest_request_past_week",
-      _.getOrElse(FollowingLastNonPollingTimeFeature, None).exists(_.untilNow < 7.days)),
-    ("is_utis_pos0", _.getOrElse(PositionFeature, None).exists(_ == 0)),
-    ("is_utis_pos1", _.getOrElse(PositionFeature, None).exists(_ == 1)),
-    ("is_utis_pos2", _.getOrElse(PositionFeature, None).exists(_ == 2)),
-    ("is_utis_pos3", _.getOrElse(PositionFeature, None).exists(_ == 3)),
-    ("is_utis_pos4", _.getOrElse(PositionFeature, None).exists(_ == 4)),
-    ("is_random_tweet", _.getOrElse(IsRandomTweetFeature, false)),
-    ("has_random_tweet_in_response", _.getOrElse(HasRandomTweetFeature, false)),
-    ("is_random_tweet_above_in_utis", _.getOrElse(IsRandomTweetAboveFeature, false)),
-    (
-      "has_ancestor_authored_by_viewer",
-      candidate =>
-        candidate
-          .getOrElse(AncestorsFeature, Seq.empty).exists(ancestor =>
-            candidate.getOrElse(ViewerIdFeature, 0L) == ancestor.userId)),
-    ("ancestor", _.getOrElse(IsAncestorCandidateFeature, false)),
-    (
-      "deep_reply",
-      candidate =>
-        candidate.getOrElse(InReplyToTweetIdFeature, None).nonEmpty && candidate
-          .getOrElse(AncestorsFeature, Seq.empty).size > 2),
-    (
-      "has_simcluster_embeddings",
-      _.getOrElse(
-        SimclustersTweetTopKClustersWithScoresFeature,
-        Map.empty[String, Double]).nonEmpty),
-    (
-      "tweet_age_less_than_15_seconds",
-      _.getOrElse(OriginalTweetCreationTimeFromSnowflakeFeature, None)
-        .exists(_.untilNow <= 15.seconds)),
-    (
-      "less_than_1_hour_since_lnpt",
-      _.getOrElse(LastNonPollingTimeFeature, None).exists(_.untilNow < 1.hour)),
-    ("has_gte_10_favs", _.getOrElse(EarlybirdFeature, None).exists(_.favCountV2.exists(_ >= 10))),
-    (
-      "device_language_matches_tweet_language",
-      candidate =>
-        candidate.getOrElse(TweetLanguageFeature, None) ==
-          candidate.getOrElse(DeviceLanguageFeature, None)),
-    (
-      "root_ancestor",
-      candidate =>
-        candidate.getOrElse(IsAncestorCandidateFeature, false) && candidate
-          .getOrElse(InReplyToTweetIdFeature, None).isEmpty),
-    ("question", _.getOrElse(EarlybirdFeature, None).exists(_.hasQuestion.contains(true))),
-    ("in_network", _.getOrElse(InNetworkFeature, true)),
-    (
-      "has_political_annotation",
-      _.getOrElse(EarlybirdFeature, None).exists(
-        _.semanticCoreAnnotations.exists(
-          _.exists(annotation =>
-            SemanticCoreFeatures.PoliticalDomains.contains(annotation.domainId) ||
-              (annotation.domainId == SemanticCoreFeatures.UnifiedTwitterTaxonomy &&
-                annotation.entityId == SemanticCoreFeatures.UttPoliticsEntityId))))),
-    (
-      "is_dont_at_me_by_invitation",
-      _.getOrElse(EarlybirdFeature, None).exists(
-        _.conversationControl.exists(_.isInstanceOf[tpt.ConversationControl.ByInvitation]))),
-    (
-      "is_dont_at_me_community",
-      _.getOrElse(EarlybirdFeature, None)
-        .exists(_.conversationControl.exists(_.isInstanceOf[tpt.ConversationControl.Community]))),
-    ("has_zero_score", _.getOrElse(ScoreFeature, None).exists(_ == 0.0)),
-    (
-      "is_followed_topic_tweet",
-      _.getOrElse(TopicContextFunctionalityTypeFeature, None)
-        .exists(_ == BasicTopicContextFunctionalityType)),
-    (
-      "is_recommended_topic_tweet",
-      _.getOrElse(TopicContextFunctionalityTypeFeature, None)
-        .exists(_ == RecommendationTopicContextFunctionalityType)),
-    ("has_gte_100_favs", _.getOrElse(EarlybirdFeature, None).exists(_.favCountV2.exists(_ >= 100))),
-    ("has_gte_1k_favs", _.getOrElse(EarlybirdFeature, None).exists(_.favCountV2.exists(_ >= 1000))),
-    (
-      "has_gte_10k_favs",
-      _.getOrElse(EarlybirdFeature, None).exists(_.favCountV2.exists(_ >= 10000))),
-    (
-      "has_gte_100k_favs",
-      _.getOrElse(EarlybirdFeature, None).exists(_.favCountV2.exists(_ >= 100000))),
-    ("has_audio_space", _.getOrElse(AudioSpaceMetaDataFeature, None).exists(_.hasSpace)),
-    ("has_live_audio_space", _.getOrElse(AudioSpaceMetaDataFeature, None).exists(_.isLive)),
-    (
-      "has_gte_10_retweets",
-      _.getOrElse(EarlybirdFeature, None).exists(_.retweetCountV2.exists(_ >= 10))),
-    (
-      "has_gte_100_retweets",
-      _.getOrElse(EarlybirdFeature, None).exists(_.retweetCountV2.exists(_ >= 100))),
-    (
-      "has_gte_1k_retweets",
-      _.getOrElse(EarlybirdFeature, None).exists(_.retweetCountV2.exists(_ >= 1000))),
-    (
-      "has_us_political_annotation",
-      _.getOrElse(EarlybirdFeature, None)
-        .exists(_.semanticCoreAnnotations.exists(_.exists(annotation =>
-          annotation.domainId == SemanticCoreFeatures.UnifiedTwitterTaxonomy &&
-            annotation.entityId == SemanticCoreFeatures.usPoliticalTweetEntityId &&
-            annotation.groupId == SemanticCoreFeatures.UsPoliticalTweetAnnotationGroupIds.BalancedV0)))),
-    (
-      "has_toxicity_score_above_threshold",
-      _.getOrElse(EarlybirdFeature, None).exists(_.toxicityScore.exists(_ > 0.91))),
-    ("is_topic_tweet", _.getOrElse(TopicIdSocialContextFeature, None).isDefined),
-    (
-      "text_only",
-      candidate =>
-        candidate.getOrElse(HasDisplayedTextFeature, false) &&
-          !(candidate.getOrElse(EarlybirdFeature, None).exists(_.hasImage) ||
-            candidate.getOrElse(EarlybirdFeature, None).exists(_.hasVideo) ||
-            candidate.getOrElse(EarlybirdFeature, None).exists(_.hasCard))),
-    (
-      "image_only",
-      candidate =>
-        candidate.getOrElse(EarlybirdFeature, None).exists(_.hasImage) &&
-          !candidate.getOrElse(HasDisplayedTextFeature, false)),
-    ("has_1_image", _.getOrElse(NumImagesFeature, None).exists(_ == 1)),
-    ("has_2_images", _.getOrElse(NumImagesFeature, None).exists(_ == 2)),
-    ("has_3_images", _.getOrElse(NumImagesFeature, None).exists(_ == 3)),
-    ("has_4_images", _.getOrElse(NumImagesFeature, None).exists(_ == 4)),
-    ("has_card", _.getOrElse(EarlybirdFeature, None).exists(_.hasCard)),
-    ("user_follow_count_gte_50", _.getOrElse(UserFollowingCountFeature, None).exists(_ > 50)),
-    (
-      "has_liked_by_social_context",
-      candidateFeatures =>
-        candidateFeatures
-          .getOrElse(SGSValidLikedByUserIdsFeature, Seq.empty)
-          .exists(candidateFeatures
-            .getOrElse(PerspectiveFilteredLikedByUserIdsFeature, Seq.empty).toSet.contains)),
-    (
-      "has_followed_by_social_context",
-      _.getOrElse(SGSValidFollowedByUserIdsFeature, Seq.empty).nonEmpty),
-    (
-      "has_topic_social_context",
-      candidateFeatures =>
-        candidateFeatures
-          .getOrElse(TopicIdSocialContextFeature, None)
-          .isDefined &&
-          candidateFeatures.getOrElse(TopicContextFunctionalityTypeFeature, None).isDefined),
-    ("video_lte_10_sec", _.getOrElse(VideoDurationMsFeature, None).exists(_ <= 10000)),
-    (
-      "video_bt_10_60_sec",
-      _.getOrElse(VideoDurationMsFeature, None).exists(duration =>
-        duration > 10000 && duration <= 60000)),
-    ("video_gt_60_sec", _.getOrElse(VideoDurationMsFeature, None).exists(_ > 60000)),
-    (
-      "tweet_age_lte_30_minutes",
-      _.getOrElse(OriginalTweetCreationTimeFromSnowflakeFeature, None)
-        .exists(_.untilNow <= 30.minutes)),
-    (
-      "tweet_age_lte_1_hour",
-      _.getOrElse(OriginalTweetCreationTimeFromSnowflakeFeature, None)
-        .exists(_.untilNow <= 1.hour)),
-    (
-      "tweet_age_lte_6_hours",
-      _.getOrElse(OriginalTweetCreationTimeFromSnowflakeFeature, None)
-        .exists(_.untilNow <= 6.hours)),
-    (
-      "tweet_age_lte_12_hours",
-      _.getOrElse(OriginalTweetCreationTimeFromSnowflakeFeature, None)
-        .exists(_.untilNow <= 12.hours)),
-    (
-      "tweet_age_gte_24_hours",
-      _.getOrElse(OriginalTweetCreationTimeFromSnowflakeFeature, None)
-        .exists(_.untilNow >= 24.hours)),
-  )
-
-  val PredicateMap = CandidatePredicates.toMap
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/ListClientEventDetailsBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/ListClientEventDetailsBuilder.scala
deleted file mode 100644
index cfffee0ca..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder/ListClientEventDetailsBuilder.scala
+++ /dev/null
@@ -1,33 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.builder
-
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.metadata.BaseClientEventDetailsBuilder
-import com.twitter.product_mixer.core.model.common.UniversalNoun
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.ClientEventDetails
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.TimelinesDetails
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-
-case class ListClientEventDetailsBuilder(suggestType: st.SuggestType)
-    extends BaseClientEventDetailsBuilder[PipelineQuery, UniversalNoun[Any]] {
-
-  override def apply(
-    query: PipelineQuery,
-    candidate: UniversalNoun[Any],
-    candidateFeatures: FeatureMap
-  ): Option[ClientEventDetails] = {
-    val clientEventDetails = ClientEventDetails(
-      conversationDetails = None,
-      timelinesDetails = Some(
-        TimelinesDetails(
-          injectionType = Some(suggestType.name),
-          controllerData = None,
-          sourceData = None)),
-      articleDetails = None,
-      liveEventDetails = None,
-      commerceDetails = None
-    )
-
-    Some(clientEventDetails)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/AddEntriesWithReplaceAndShowAlertAndShowCoverInstructionBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/AddEntriesWithReplaceAndShowAlertAndShowCoverInstructionBuilder.scala
deleted file mode 100644
index dc3080eb5..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/AddEntriesWithReplaceAndShowAlertAndShowCoverInstructionBuilder.scala
+++ /dev/null
@@ -1,30 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.AlwaysInclude
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.IncludeInstruction
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.UrtInstructionBuilder
-import com.twitter.product_mixer.core.model.marshalling.response.urt.AddEntriesTimelineInstruction
-import com.twitter.product_mixer.core.model.marshalling.response.urt.Cover
-import com.twitter.product_mixer.core.model.marshalling.response.urt.ShowAlert
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineEntry
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-
-case class AddEntriesWithReplaceAndShowAlertAndCoverInstructionBuilder[Query <: PipelineQuery](
-  override val includeInstruction: IncludeInstruction[Query] = AlwaysInclude)
-    extends UrtInstructionBuilder[Query, AddEntriesTimelineInstruction] {
-
-  override def build(
-    query: Query,
-    entries: Seq[TimelineEntry]
-  ): Seq[AddEntriesTimelineInstruction] = {
-    if (includeInstruction(query, entries)) {
-      val entriesToAdd = entries
-        .filterNot(_.isInstanceOf[ShowAlert])
-        .filterNot(_.isInstanceOf[Cover])
-        .filter(_.entryIdToReplace.isEmpty)
-      if (entriesToAdd.nonEmpty) Seq(AddEntriesTimelineInstruction(entriesToAdd))
-      else Seq.empty
-    } else
-      Seq.empty
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/AuthorChildFeedbackActionBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/AuthorChildFeedbackActionBuilder.scala
deleted file mode 100644
index dee273f5f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/AuthorChildFeedbackActionBuilder.scala
+++ /dev/null
@@ -1,33 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.ScreenNamesFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.ChildFeedbackAction
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import com.twitter.timelines.service.{thriftscala => t}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class AuthorChildFeedbackActionBuilder @Inject() (
-  @ProductScoped stringCenter: StringCenter,
-  externalStrings: HomeMixerExternalStrings) {
-
-  def apply(candidateFeatures: FeatureMap): Option[ChildFeedbackAction] = {
-    CandidatesUtil.getOriginalAuthorId(candidateFeatures).flatMap { authorId =>
-      FeedbackUtil.buildUserSeeFewerChildFeedbackAction(
-        userId = authorId,
-        namesByUserId = candidateFeatures.getOrElse(ScreenNamesFeature, Map.empty[Long, String]),
-        promptExternalString = externalStrings.showFewerTweetsString,
-        confirmationExternalString = externalStrings.showFewerTweetsConfirmationString,
-        engagementType = t.FeedbackEngagementType.Tweet,
-        stringCenter = stringCenter,
-        injectionType = candidateFeatures.getOrElse(SuggestTypeFeature, None)
-      )
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/BUILD.bazel
deleted file mode 100644
index 3a4f19592..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/BUILD.bazel
+++ /dev/null
@@ -1,19 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/decorator/urt",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/premarshaller/urt/builder",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/marshaller/response/urt",
-        "src/thrift/com/twitter/timelines/service:thrift-scala",
-        "src/thrift/com/twitter/timelineservice/server/internal:thrift-scala",
-        "timelinemixer/server/src/main/scala/com/twitter/timelinemixer/injection/model/candidate",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/BlockUserChildFeedbackActionBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/BlockUserChildFeedbackActionBuilder.scala
deleted file mode 100644
index a23b57dee..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/BlockUserChildFeedbackActionBuilder.scala
+++ /dev/null
@@ -1,53 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.ScreenNamesFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceUserIdFeature
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.marshalling.response.urt.icon
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.BottomSheet
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.ChildFeedbackAction
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RichBehavior
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RichFeedbackBehaviorBlockUser
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class BlockUserChildFeedbackActionBuilder @Inject() (
-  @ProductScoped stringCenter: StringCenter,
-  externalStrings: HomeMixerExternalStrings) {
-
-  def apply(candidateFeatures: FeatureMap): Option[ChildFeedbackAction] = {
-    val userIdOpt =
-      if (candidateFeatures.getOrElse(IsRetweetFeature, false))
-        candidateFeatures.getOrElse(SourceUserIdFeature, None)
-      else candidateFeatures.getOrElse(AuthorIdFeature, None)
-
-    userIdOpt.flatMap { userId =>
-      val screenNamesMap = candidateFeatures.getOrElse(ScreenNamesFeature, Map.empty[Long, String])
-      val userScreenNameOpt = screenNamesMap.get(userId)
-      userScreenNameOpt.map { userScreenName =>
-        val prompt = stringCenter.prepare(
-          externalStrings.blockUserString,
-          Map("username" -> userScreenName)
-        )
-        ChildFeedbackAction(
-          feedbackType = RichBehavior,
-          prompt = Some(prompt),
-          confirmation = None,
-          feedbackUrl = None,
-          hasUndoAction = Some(true),
-          confirmationDisplayType = Some(BottomSheet),
-          clientEventInfo = None,
-          icon = Some(icon.No),
-          richBehavior = Some(RichFeedbackBehaviorBlockUser(userId)),
-          subprompt = None
-        )
-      }
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/DontLikeFeedbackActionBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/DontLikeFeedbackActionBuilder.scala
deleted file mode 100644
index 9032b53d9..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/DontLikeFeedbackActionBuilder.scala
+++ /dev/null
@@ -1,87 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.home_mixer.param.HomeGlobalParams.EnableNahFeedbackInfoParam
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.marshalling.response.urt.icon.Frown
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.DontLike
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.FeedbackAction
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import com.twitter.timelines.common.{thriftscala => tlc}
-import com.twitter.timelineservice.model.FeedbackInfo
-import com.twitter.timelineservice.model.FeedbackMetadata
-import com.twitter.timelineservice.{thriftscala => tls}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class DontLikeFeedbackActionBuilder @Inject() (
-  @ProductScoped stringCenter: StringCenter,
-  externalStrings: HomeMixerExternalStrings,
-  authorChildFeedbackActionBuilder: AuthorChildFeedbackActionBuilder,
-  retweeterChildFeedbackActionBuilder: RetweeterChildFeedbackActionBuilder,
-  notRelevantChildFeedbackActionBuilder: NotRelevantChildFeedbackActionBuilder,
-  unfollowUserChildFeedbackActionBuilder: UnfollowUserChildFeedbackActionBuilder,
-  muteUserChildFeedbackActionBuilder: MuteUserChildFeedbackActionBuilder,
-  blockUserChildFeedbackActionBuilder: BlockUserChildFeedbackActionBuilder,
-  reportTweetChildFeedbackActionBuilder: ReportTweetChildFeedbackActionBuilder) {
-
-  def apply(
-    query: PipelineQuery,
-    candidate: TweetCandidate,
-    candidateFeatures: FeatureMap
-  ): Option[FeedbackAction] = {
-    CandidatesUtil.getOriginalAuthorId(candidateFeatures).map { authorId =>
-      val feedbackEntities = Seq(
-        tlc.FeedbackEntity.TweetId(candidate.id),
-        tlc.FeedbackEntity.UserId(authorId)
-      )
-      val feedbackMetadata = FeedbackMetadata(
-        engagementType = None,
-        entityIds = feedbackEntities,
-        ttl = Some(30.days)
-      )
-      val feedbackUrl = FeedbackInfo.feedbackUrl(
-        feedbackType = tls.FeedbackType.DontLike,
-        feedbackMetadata = feedbackMetadata,
-        injectionType = candidateFeatures.getOrElse(SuggestTypeFeature, None)
-      )
-      val childFeedbackActions = if (query.params(EnableNahFeedbackInfoParam)) {
-        Seq(
-          unfollowUserChildFeedbackActionBuilder(candidateFeatures),
-          muteUserChildFeedbackActionBuilder(candidateFeatures),
-          blockUserChildFeedbackActionBuilder(candidateFeatures),
-          reportTweetChildFeedbackActionBuilder(candidate)
-        ).flatten
-      } else {
-        Seq(
-          authorChildFeedbackActionBuilder(candidateFeatures),
-          retweeterChildFeedbackActionBuilder(candidateFeatures),
-          notRelevantChildFeedbackActionBuilder(candidate, candidateFeatures)
-        ).flatten
-      }
-
-      FeedbackAction(
-        feedbackType = DontLike,
-        prompt = Some(stringCenter.prepare(externalStrings.dontLikeString)),
-        confirmation = Some(stringCenter.prepare(externalStrings.dontLikeConfirmationString)),
-        childFeedbackActions =
-          if (childFeedbackActions.nonEmpty) Some(childFeedbackActions) else None,
-        feedbackUrl = Some(feedbackUrl),
-        hasUndoAction = Some(true),
-        confirmationDisplayType = None,
-        clientEventInfo = None,
-        icon = Some(Frown),
-        richBehavior = None,
-        subprompt = None,
-        encodedFeedbackRequest = None
-      )
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/EngagerSocialContextBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/EngagerSocialContextBuilder.scala
deleted file mode 100644
index 950271e4a..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/EngagerSocialContextBuilder.scala
+++ /dev/null
@@ -1,119 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.RealNamesFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata._
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stringcenter.client.StringCenter
-import com.twitter.stringcenter.client.core.ExternalString
-
-private[decorator] case class SocialContextIdAndScreenName(
-  socialContextId: Long,
-  screenName: String)
-
-object EngagerSocialContextBuilder {
-  private val UserIdRequestParamName = "user_id"
-  private val DirectInjectionContentSourceRequestParamName = "dis"
-  private val DirectInjectionIdRequestParamName = "diid"
-  private val DirectInjectionContentSourceSocialProofUsers = "socialproofusers"
-  private val SocialProofUrl = ""
-}
-
-case class EngagerSocialContextBuilder(
-  contextType: GeneralContextType,
-  stringCenter: StringCenter,
-  oneUserString: ExternalString,
-  twoUsersString: ExternalString,
-  moreUsersString: ExternalString,
-  timelineTitle: ExternalString) {
-  import EngagerSocialContextBuilder._
-
-  def apply(
-    socialContextIds: Seq[Long],
-    query: PipelineQuery,
-    candidateFeatures: FeatureMap
-  ): Option[SocialContext] = {
-    val realNames = candidateFeatures.getOrElse(RealNamesFeature, Map.empty[Long, String])
-    val validSocialContextIdAndScreenNames = socialContextIds.flatMap { socialContextId =>
-      realNames
-        .get(socialContextId).map(screenName =>
-          SocialContextIdAndScreenName(socialContextId, screenName))
-    }
-
-    validSocialContextIdAndScreenNames match {
-      case Seq(user) =>
-        val socialContextString =
-          stringCenter.prepare(oneUserString, Map("user" -> user.screenName))
-        Some(mkOneUserSocialContext(socialContextString, user.socialContextId))
-      case Seq(firstUser, secondUser) =>
-        val socialContextString =
-          stringCenter
-            .prepare(
-              twoUsersString,
-              Map("user1" -> firstUser.screenName, "user2" -> secondUser.screenName))
-        Some(
-          mkManyUserSocialContext(
-            socialContextString,
-            query.getRequiredUserId,
-            validSocialContextIdAndScreenNames.map(_.socialContextId)))
-
-      case firstUser +: otherUsers =>
-        val otherUsersCount = otherUsers.size
-        val socialContextString =
-          stringCenter
-            .prepare(
-              moreUsersString,
-              Map("user" -> firstUser.screenName, "count" -> otherUsersCount))
-        Some(
-          mkManyUserSocialContext(
-            socialContextString,
-            query.getRequiredUserId,
-            validSocialContextIdAndScreenNames.map(_.socialContextId)))
-      case _ => None
-    }
-  }
-
-  private def mkOneUserSocialContext(socialContextString: String, userId: Long): GeneralContext = {
-    GeneralContext(
-      contextType = contextType,
-      text = socialContextString,
-      url = None,
-      contextImageUrls = None,
-      landingUrl = Some(
-        Url(
-          urlType = DeepLink,
-          url = "",
-          urtEndpointOptions = None
-        )
-      )
-    )
-  }
-
-  private def mkManyUserSocialContext(
-    socialContextString: String,
-    viewerId: Long,
-    socialContextIds: Seq[Long]
-  ): GeneralContext = {
-    GeneralContext(
-      contextType = contextType,
-      text = socialContextString,
-      url = None,
-      contextImageUrls = None,
-      landingUrl = Some(
-        Url(
-          urlType = UrtEndpoint,
-          url = SocialProofUrl,
-          urtEndpointOptions = Some(UrtEndpointOptions(
-            requestParams = Some(Map(
-              UserIdRequestParamName -> viewerId.toString,
-              DirectInjectionContentSourceRequestParamName -> DirectInjectionContentSourceSocialProofUsers,
-              DirectInjectionIdRequestParamName -> socialContextIds.mkString(",")
-            )),
-            title = Some(stringCenter.prepare(timelineTitle)),
-            cacheId = None,
-            subtitle = None
-          ))
-        ))
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/ExtendedReplySocialContextBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/ExtendedReplySocialContextBuilder.scala
deleted file mode 100644
index 74576eae8..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/ExtendedReplySocialContextBuilder.scala
+++ /dev/null
@@ -1,78 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.FocalTweetAuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.FocalTweetInNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.FocalTweetRealNamesFeature
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.social_context.BaseSocialContextBuilder
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.SocialContext
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata._
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import javax.inject.Inject
-import javax.inject.Provider
-import javax.inject.Singleton
-
-/**
- * Use '@A replied' when the root tweet is out-of-network and the reply is in network.
- *
- * This function should only be called for the root Tweet of convo modules. This is enforced by
- * [[HomeTweetSocialContextBuilder]].
- */
-@Singleton
-case class ExtendedReplySocialContextBuilder @Inject() (
-  externalStrings: HomeMixerExternalStrings,
-  @ProductScoped stringCenterProvider: Provider[StringCenter])
-    extends BaseSocialContextBuilder[PipelineQuery, TweetCandidate] {
-
-  private val stringCenter = stringCenterProvider.get()
-  private val extendedReplyString = externalStrings.socialContextExtendedReply
-
-  def apply(
-    query: PipelineQuery,
-    candidate: TweetCandidate,
-    candidateFeatures: FeatureMap
-  ): Option[SocialContext] = {
-
-    // If these values are missing default to not showing an extended reply banner
-    val inNetworkRoot = candidateFeatures.getOrElse(InNetworkFeature, true)
-
-    val inNetworkFocalTweet =
-      candidateFeatures.getOrElse(FocalTweetInNetworkFeature, None).getOrElse(false)
-
-    if (!inNetworkRoot && inNetworkFocalTweet) {
-
-      val focalTweetAuthorIdOpt = candidateFeatures.getOrElse(FocalTweetAuthorIdFeature, None)
-      val focalTweetRealNames =
-        candidateFeatures
-          .getOrElse(FocalTweetRealNamesFeature, None).getOrElse(Map.empty[Long, String])
-      val focalTweetAuthorNameOpt = focalTweetAuthorIdOpt.flatMap(focalTweetRealNames.get)
-
-      (focalTweetAuthorIdOpt, focalTweetAuthorNameOpt) match {
-        case (Some(focalTweetAuthorId), Some(focalTweetAuthorName)) =>
-          Some(
-            GeneralContext(
-              contextType = ConversationGeneralContextType,
-              text = stringCenter
-                .prepare(extendedReplyString, placeholders = Map("user1" -> focalTweetAuthorName)),
-              url = None,
-              contextImageUrls = None,
-              landingUrl = Some(
-                Url(
-                  urlType = DeepLink,
-                  url = "",
-                  urtEndpointOptions = None
-                ))
-            ))
-        case _ =>
-          None
-      }
-    } else {
-      None
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/FeedbackStrings.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/FeedbackStrings.scala
deleted file mode 100644
index 8a9c214aa..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/FeedbackStrings.scala
+++ /dev/null
@@ -1,18 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.ExternalStringRegistry
-import javax.inject.Inject
-import javax.inject.Provider
-import javax.inject.Singleton
-
-@Singleton
-class FeedbackStrings @Inject() (
-  @ProductScoped externalStringRegistryProvider: Provider[ExternalStringRegistry]) {
-  private val externalStringRegistry = externalStringRegistryProvider.get()
-
-  val seeLessOftenFeedbackString =
-    externalStringRegistry.createProdString("Feedback.seeLessOften")
-  val seeLessOftenConfirmationFeedbackString =
-    externalStringRegistry.createProdString("Feedback.seeLessOftenConfirmation")
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/FeedbackUtil.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/FeedbackUtil.scala
deleted file mode 100644
index 08534f26e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/FeedbackUtil.scala
+++ /dev/null
@@ -1,61 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.ChildFeedbackAction
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.SeeFewer
-import com.twitter.stringcenter.client.StringCenter
-import com.twitter.stringcenter.client.core.ExternalString
-import com.twitter.timelines.common.{thriftscala => tlc}
-import com.twitter.timelines.service.{thriftscala => t}
-import com.twitter.timelineservice.model.FeedbackInfo
-import com.twitter.timelineservice.model.FeedbackMetadata
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-import com.twitter.timelineservice.{thriftscala => tlst}
-
-object FeedbackUtil {
-
-  val FeedbackTtl = 30.days
-
-  def buildUserSeeFewerChildFeedbackAction(
-    userId: Long,
-    namesByUserId: Map[Long, String],
-    promptExternalString: ExternalString,
-    confirmationExternalString: ExternalString,
-    engagementType: t.FeedbackEngagementType,
-    stringCenter: StringCenter,
-    injectionType: Option[st.SuggestType]
-  ): Option[ChildFeedbackAction] = {
-    namesByUserId.get(userId).map { userScreenName =>
-      val prompt = stringCenter.prepare(
-        promptExternalString,
-        Map("user" -> userScreenName)
-      )
-      val confirmation = stringCenter.prepare(
-        confirmationExternalString,
-        Map("user" -> userScreenName)
-      )
-      val feedbackMetadata = FeedbackMetadata(
-        engagementType = Some(engagementType),
-        entityIds = Seq(tlc.FeedbackEntity.UserId(userId)),
-        ttl = Some(FeedbackTtl))
-      val feedbackUrl = FeedbackInfo.feedbackUrl(
-        feedbackType = tlst.FeedbackType.SeeFewer,
-        feedbackMetadata = feedbackMetadata,
-        injectionType = injectionType
-      )
-
-      ChildFeedbackAction(
-        feedbackType = SeeFewer,
-        prompt = Some(prompt),
-        confirmation = Some(confirmation),
-        feedbackUrl = Some(feedbackUrl),
-        hasUndoAction = Some(true),
-        confirmationDisplayType = None,
-        clientEventInfo = None,
-        icon = None,
-        richBehavior = None,
-        subprompt = None
-      )
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/FollowedBySocialContextBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/FollowedBySocialContextBuilder.scala
deleted file mode 100644
index 7554f7b36..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/FollowedBySocialContextBuilder.scala
+++ /dev/null
@@ -1,53 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.SGSValidFollowedByUserIdsFeature
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.social_context.BaseSocialContextBuilder
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata._
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import javax.inject.Inject
-import javax.inject.Provider
-import javax.inject.Singleton
-
-@Singleton
-case class FollowedBySocialContextBuilder @Inject() (
-  externalStrings: HomeMixerExternalStrings,
-  @ProductScoped stringCenterProvider: Provider[StringCenter])
-    extends BaseSocialContextBuilder[PipelineQuery, TweetCandidate] {
-
-  private val stringCenter = stringCenterProvider.get()
-
-  private val engagerSocialContextBuilder = EngagerSocialContextBuilder(
-    contextType = FollowGeneralContextType,
-    stringCenter = stringCenter,
-    oneUserString = externalStrings.socialContextOneUserFollowsString,
-    twoUsersString = externalStrings.socialContextTwoUsersFollowString,
-    moreUsersString = externalStrings.socialContextMoreUsersFollowString,
-    timelineTitle = externalStrings.socialContextFollowedByTimelineTitle
-  )
-
-  def apply(
-    query: PipelineQuery,
-    candidate: TweetCandidate,
-    candidateFeatures: FeatureMap
-  ): Option[SocialContext] = {
-    // Only apply followed-by social context for OON Tweets
-    val inNetwork = candidateFeatures.getOrElse(InNetworkFeature, true)
-    if (!inNetwork) {
-      val validFollowedByUserIds =
-        candidateFeatures.getOrElse(SGSValidFollowedByUserIdsFeature, Nil)
-      engagerSocialContextBuilder(
-        socialContextIds = validFollowedByUserIds,
-        query = query,
-        candidateFeatures = candidateFeatures
-      )
-    } else {
-      None
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/HomeFeedbackActionInfoBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/HomeFeedbackActionInfoBuilder.scala
deleted file mode 100644
index c932f6362..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/HomeFeedbackActionInfoBuilder.scala
+++ /dev/null
@@ -1,53 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.home_mixer.model.request.FollowingProduct
-import com.twitter.home_mixer.model.request.ForYouProduct
-import com.twitter.home_mixer.param.HomeGlobalParams.EnableNahFeedbackInfoParam
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.metadata.BaseFeedbackActionInfoBuilder
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.FeedbackActionInfo
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelines.service.{thriftscala => t}
-import com.twitter.timelines.util.FeedbackMetadataSerializer
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class HomeFeedbackActionInfoBuilder @Inject() (
-  notInterestedTopicFeedbackActionBuilder: NotInterestedTopicFeedbackActionBuilder,
-  dontLikeFeedbackActionBuilder: DontLikeFeedbackActionBuilder)
-    extends BaseFeedbackActionInfoBuilder[PipelineQuery, TweetCandidate] {
-
-  override def apply(
-    query: PipelineQuery,
-    candidate: TweetCandidate,
-    candidateFeatures: FeatureMap
-  ): Option[FeedbackActionInfo] = {
-    val supportedProduct = query.product match {
-      case FollowingProduct => query.params(EnableNahFeedbackInfoParam)
-      case ForYouProduct => true
-      case _ => false
-    }
-    val isAuthoredByViewer = CandidatesUtil.isAuthoredByViewer(query, candidateFeatures)
-
-    if (supportedProduct && !isAuthoredByViewer) {
-      val feedbackActions = Seq(
-        notInterestedTopicFeedbackActionBuilder(candidateFeatures),
-        dontLikeFeedbackActionBuilder(query, candidate, candidateFeatures)
-      ).flatten
-      val feedbackMetadata = FeedbackMetadataSerializer.serialize(
-        t.FeedbackMetadata(injectionType = candidateFeatures.getOrElse(SuggestTypeFeature, None)))
-
-      Some(
-        FeedbackActionInfo(
-          feedbackActions = feedbackActions,
-          feedbackMetadata = Some(feedbackMetadata),
-          displayContext = None,
-          clientEventInfo = None
-        ))
-    } else None
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/HomeTweetSocialContextBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/HomeTweetSocialContextBuilder.scala
deleted file mode 100644
index 5138f254a..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/HomeTweetSocialContextBuilder.scala
+++ /dev/null
@@ -1,50 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.ConversationModuleFocalTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.ConversationModuleIdFeature
-import com.twitter.home_mixer.param.HomeGlobalParams.EnableSocialContextParam
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.social_context.BaseSocialContextBuilder
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.SocialContext
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class HomeTweetSocialContextBuilder @Inject() (
-  likedBySocialContextBuilder: LikedBySocialContextBuilder,
-  listsSocialContextBuilder: ListsSocialContextBuilder,
-  followedBySocialContextBuilder: FollowedBySocialContextBuilder,
-  topicSocialContextBuilder: TopicSocialContextBuilder,
-  extendedReplySocialContextBuilder: ExtendedReplySocialContextBuilder,
-  receivedReplySocialContextBuilder: ReceivedReplySocialContextBuilder,
-  popularVideoSocialContextBuilder: PopularVideoSocialContextBuilder,
-  popularInYourAreaSocialContextBuilder: PopularInYourAreaSocialContextBuilder)
-    extends BaseSocialContextBuilder[PipelineQuery, TweetCandidate] {
-
-  def apply(
-    query: PipelineQuery,
-    candidate: TweetCandidate,
-    features: FeatureMap
-  ): Option[SocialContext] = {
-    if (query.params(EnableSocialContextParam)) {
-      features.getOrElse(ConversationModuleFocalTweetIdFeature, None) match {
-        case None =>
-          likedBySocialContextBuilder(query, candidate, features)
-            .orElse(followedBySocialContextBuilder(query, candidate, features))
-            .orElse(topicSocialContextBuilder(query, candidate, features))
-            .orElse(popularVideoSocialContextBuilder(query, candidate, features))
-            .orElse(listsSocialContextBuilder(query, candidate, features))
-            .orElse(popularInYourAreaSocialContextBuilder(query, candidate, features))
-        case Some(_) =>
-          val conversationId = features.getOrElse(ConversationModuleIdFeature, None)
-          // Only hydrate the social context into the root tweet in a conversation module
-          if (conversationId.contains(candidate.id)) {
-            extendedReplySocialContextBuilder(query, candidate, features)
-              .orElse(receivedReplySocialContextBuilder(query, candidate, features))
-          } else None
-      }
-    } else None
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/HomeWhoToFollowFeedbackActionInfoBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/HomeWhoToFollowFeedbackActionInfoBuilder.scala
deleted file mode 100644
index 49017e8cf..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/HomeWhoToFollowFeedbackActionInfoBuilder.scala
+++ /dev/null
@@ -1,51 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.product_mixer.component_library.decorator.urt.builder.metadata.WhoToFollowFeedbackActionInfoBuilder
-import com.twitter.product_mixer.component_library.model.candidate.UserCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.metadata.BaseFeedbackActionInfoBuilder
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import javax.inject.Inject
-import javax.inject.Provider
-import javax.inject.Singleton
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.FeedbackActionInfo
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelines.service.{thriftscala => tl}
-import com.twitter.timelines.util.FeedbackRequestSerializer
-import com.twitter.timelineservice.suggests.thriftscala.SuggestType
-import com.twitter.timelineservice.thriftscala.FeedbackType
-
-object HomeWhoToFollowFeedbackActionInfoBuilder {
-  private val FeedbackMetadata = tl.FeedbackMetadata(
-    injectionType = Some(SuggestType.WhoToFollow),
-    engagementType = None,
-    entityIds = Seq.empty,
-    ttlMs = None
-  )
-  private val FeedbackRequest =
-    tl.DefaultFeedbackRequest2(FeedbackType.SeeFewer, FeedbackMetadata)
-  private val EncodedFeedbackRequest =
-    FeedbackRequestSerializer.serialize(tl.FeedbackRequest.DefaultFeedbackRequest2(FeedbackRequest))
-}
-
-@Singleton
-case class HomeWhoToFollowFeedbackActionInfoBuilder @Inject() (
-  feedbackStrings: FeedbackStrings,
-  @ProductScoped stringCenterProvider: Provider[StringCenter])
-    extends BaseFeedbackActionInfoBuilder[PipelineQuery, UserCandidate] {
-
-  private val whoToFollowFeedbackActionInfoBuilder = WhoToFollowFeedbackActionInfoBuilder(
-    seeLessOftenFeedbackString = feedbackStrings.seeLessOftenFeedbackString,
-    seeLessOftenConfirmationFeedbackString = feedbackStrings.seeLessOftenConfirmationFeedbackString,
-    stringCenter = stringCenterProvider.get(),
-    encodedFeedbackRequest = Some(HomeWhoToFollowFeedbackActionInfoBuilder.EncodedFeedbackRequest)
-  )
-
-  override def apply(
-    query: PipelineQuery,
-    candidate: UserCandidate,
-    candidateFeatures: FeatureMap
-  ): Option[FeedbackActionInfo] =
-    whoToFollowFeedbackActionInfoBuilder.apply(query, candidate, candidateFeatures)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/HomeWhoToSubscribeFeedbackActionInfoBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/HomeWhoToSubscribeFeedbackActionInfoBuilder.scala
deleted file mode 100644
index 270ea66f6..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/HomeWhoToSubscribeFeedbackActionInfoBuilder.scala
+++ /dev/null
@@ -1,52 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.product_mixer.component_library.decorator.urt.builder.metadata.WhoToFollowFeedbackActionInfoBuilder
-import com.twitter.product_mixer.component_library.model.candidate.UserCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.metadata.BaseFeedbackActionInfoBuilder
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import javax.inject.Inject
-import javax.inject.Provider
-import javax.inject.Singleton
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.FeedbackActionInfo
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelines.service.{thriftscala => tl}
-import com.twitter.timelines.util.FeedbackRequestSerializer
-import com.twitter.timelineservice.suggests.thriftscala.SuggestType
-import com.twitter.timelineservice.thriftscala.FeedbackType
-
-object HomeWhoToSubscribeFeedbackActionInfoBuilder {
-  private val FeedbackMetadata = tl.FeedbackMetadata(
-    injectionType = Some(SuggestType.WhoToSubscribe),
-    engagementType = None,
-    entityIds = Seq.empty,
-    ttlMs = None
-  )
-  private val FeedbackRequest =
-    tl.DefaultFeedbackRequest2(FeedbackType.SeeFewer, FeedbackMetadata)
-  private val EncodedFeedbackRequest =
-    FeedbackRequestSerializer.serialize(tl.FeedbackRequest.DefaultFeedbackRequest2(FeedbackRequest))
-}
-
-@Singleton
-case class HomeWhoToSubscribeFeedbackActionInfoBuilder @Inject() (
-  feedbackStrings: FeedbackStrings,
-  @ProductScoped stringCenterProvider: Provider[StringCenter])
-    extends BaseFeedbackActionInfoBuilder[PipelineQuery, UserCandidate] {
-
-  private val whoToSubscribeFeedbackActionInfoBuilder = WhoToFollowFeedbackActionInfoBuilder(
-    seeLessOftenFeedbackString = feedbackStrings.seeLessOftenFeedbackString,
-    seeLessOftenConfirmationFeedbackString = feedbackStrings.seeLessOftenConfirmationFeedbackString,
-    stringCenter = stringCenterProvider.get(),
-    encodedFeedbackRequest =
-      Some(HomeWhoToSubscribeFeedbackActionInfoBuilder.EncodedFeedbackRequest)
-  )
-
-  override def apply(
-    query: PipelineQuery,
-    candidate: UserCandidate,
-    candidateFeatures: FeatureMap
-  ): Option[FeedbackActionInfo] =
-    whoToSubscribeFeedbackActionInfoBuilder.apply(query, candidate, candidateFeatures)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/LikedBySocialContextBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/LikedBySocialContextBuilder.scala
deleted file mode 100644
index fbc65be13..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/LikedBySocialContextBuilder.scala
+++ /dev/null
@@ -1,54 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.PerspectiveFilteredLikedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.SGSValidLikedByUserIdsFeature
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.social_context.BaseSocialContextBuilder
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.LikeGeneralContextType
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.SocialContext
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import javax.inject.Inject
-import javax.inject.Provider
-import javax.inject.Singleton
-
-@Singleton
-case class LikedBySocialContextBuilder @Inject() (
-  externalStrings: HomeMixerExternalStrings,
-  @ProductScoped stringCenterProvider: Provider[StringCenter])
-    extends BaseSocialContextBuilder[PipelineQuery, TweetCandidate] {
-
-  private val stringCenter = stringCenterProvider.get()
-
-  private val engagerSocialContextBuilder = EngagerSocialContextBuilder(
-    contextType = LikeGeneralContextType,
-    stringCenter = stringCenter,
-    oneUserString = externalStrings.socialContextOneUserLikedString,
-    twoUsersString = externalStrings.socialContextTwoUsersLikedString,
-    moreUsersString = externalStrings.socialContextMoreUsersLikedString,
-    timelineTitle = externalStrings.socialContextLikedByTimelineTitle
-  )
-
-  def apply(
-    query: PipelineQuery,
-    candidate: TweetCandidate,
-    candidateFeatures: FeatureMap
-  ): Option[SocialContext] = {
-
-    // Liked by users are valid only if they pass both the SGS and Perspective filters.
-    val validLikedByUserIds =
-      candidateFeatures
-        .getOrElse(SGSValidLikedByUserIdsFeature, Nil)
-        .filter(
-          candidateFeatures.getOrElse(PerspectiveFilteredLikedByUserIdsFeature, Nil).toSet.contains)
-
-    engagerSocialContextBuilder(
-      socialContextIds = validLikedByUserIds,
-      query = query,
-      candidateFeatures = candidateFeatures
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/ListsSocialContextBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/ListsSocialContextBuilder.scala
deleted file mode 100644
index e5e746223..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/ListsSocialContextBuilder.scala
+++ /dev/null
@@ -1,50 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.home_mixer.model.HomeFeatures.UserScreenNameFeature
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.social_context.BaseSocialContextBuilder
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.SocialContext
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata._
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import com.twitter.timelineservice.suggests.{thriftscala => t}
-import javax.inject.Inject
-import javax.inject.Provider
-import javax.inject.Singleton
-
-/**
- * "Your Lists" will be rendered for the context and a url link for your lists.
- */
-@Singleton
-case class ListsSocialContextBuilder @Inject() (
-  externalStrings: HomeMixerExternalStrings,
-  @ProductScoped stringCenterProvider: Provider[StringCenter])
-    extends BaseSocialContextBuilder[PipelineQuery, TweetCandidate] {
-
-  private val stringCenter = stringCenterProvider.get()
-  private val listString = externalStrings.ownedSubscribedListsModuleHeaderString
-
-  def apply(
-    query: PipelineQuery,
-    candidate: TweetCandidate,
-    candidateFeatures: FeatureMap
-  ): Option[SocialContext] = {
-    candidateFeatures.get(SuggestTypeFeature) match {
-      case Some(suggestType) if suggestType == t.SuggestType.RankedListTweet =>
-        val userName = query.features.flatMap(_.getOrElse(UserScreenNameFeature, None))
-        Some(
-          GeneralContext(
-            contextType = ListGeneralContextType,
-            text = stringCenter.prepare(listString),
-            url = userName.map(name => ""),
-            contextImageUrls = None,
-            landingUrl = None
-          ))
-      case _ => None
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/MuteUserChildFeedbackActionBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/MuteUserChildFeedbackActionBuilder.scala
deleted file mode 100644
index 542ed8a67..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/MuteUserChildFeedbackActionBuilder.scala
+++ /dev/null
@@ -1,54 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.ScreenNamesFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceUserIdFeature
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.marshalling.response.urt.icon
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.ChildFeedbackAction
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RichBehavior
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RichFeedbackBehaviorToggleMuteUser
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class MuteUserChildFeedbackActionBuilder @Inject() (
-  @ProductScoped stringCenter: StringCenter,
-  externalStrings: HomeMixerExternalStrings) {
-
-  def apply(
-    candidateFeatures: FeatureMap
-  ): Option[ChildFeedbackAction] = {
-    val userIdOpt =
-      if (candidateFeatures.getOrElse(IsRetweetFeature, false))
-        candidateFeatures.getOrElse(SourceUserIdFeature, None)
-      else candidateFeatures.getOrElse(AuthorIdFeature, None)
-
-    userIdOpt.flatMap { userId =>
-      val screenNamesMap = candidateFeatures.getOrElse(ScreenNamesFeature, Map.empty[Long, String])
-      val userScreenNameOpt = screenNamesMap.get(userId)
-      userScreenNameOpt.map { userScreenName =>
-        val prompt = stringCenter.prepare(
-          externalStrings.muteUserString,
-          Map("username" -> userScreenName)
-        )
-        ChildFeedbackAction(
-          feedbackType = RichBehavior,
-          prompt = Some(prompt),
-          confirmation = None,
-          feedbackUrl = None,
-          hasUndoAction = Some(true),
-          confirmationDisplayType = None,
-          clientEventInfo = None,
-          icon = Some(icon.SpeakerOff),
-          richBehavior = Some(RichFeedbackBehaviorToggleMuteUser(userId)),
-          subprompt = None
-        )
-      }
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/NotInterestedTopicFeedbackActionBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/NotInterestedTopicFeedbackActionBuilder.scala
deleted file mode 100644
index 2ec520e11..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/NotInterestedTopicFeedbackActionBuilder.scala
+++ /dev/null
@@ -1,70 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.PerspectiveFilteredLikedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.SGSValidFollowedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.SGSValidLikedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.TopicContextFunctionalityTypeFeature
-import com.twitter.home_mixer.model.HomeFeatures.TopicIdSocialContextFeature
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.FeedbackAction
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RecWithEducationTopicContextFunctionalityType
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RecommendationTopicContextFunctionalityType
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RichBehavior
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RichFeedbackBehaviorMarkNotInterestedTopic
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class NotInterestedTopicFeedbackActionBuilder @Inject() (
-  @ProductScoped stringCenter: StringCenter,
-  externalStrings: HomeMixerExternalStrings) {
-
-  def apply(
-    candidateFeatures: FeatureMap
-  ): Option[FeedbackAction] = {
-    val isOutOfNetwork = !candidateFeatures.getOrElse(InNetworkFeature, true)
-    val validFollowedByUserIds =
-      candidateFeatures.getOrElse(SGSValidFollowedByUserIdsFeature, Nil)
-    val validLikedByUserIds =
-      candidateFeatures
-        .getOrElse(SGSValidLikedByUserIdsFeature, Nil)
-        .filter(
-          candidateFeatures.getOrElse(PerspectiveFilteredLikedByUserIdsFeature, Nil).toSet.contains)
-
-    if (isOutOfNetwork && validLikedByUserIds.isEmpty && validFollowedByUserIds.isEmpty) {
-      val topicIdSocialContext = candidateFeatures.getOrElse(TopicIdSocialContextFeature, None)
-      val topicContextFunctionalityType =
-        candidateFeatures.getOrElse(TopicContextFunctionalityTypeFeature, None)
-
-      (topicIdSocialContext, topicContextFunctionalityType) match {
-        case (Some(topicId), Some(topicContextFunctionalityType))
-            if topicContextFunctionalityType == RecommendationTopicContextFunctionalityType ||
-              topicContextFunctionalityType == RecWithEducationTopicContextFunctionalityType =>
-          Some(
-            FeedbackAction(
-              feedbackType = RichBehavior,
-              prompt = None,
-              confirmation = None,
-              childFeedbackActions = None,
-              feedbackUrl = None,
-              hasUndoAction = Some(true),
-              confirmationDisplayType = None,
-              clientEventInfo = None,
-              icon = None,
-              richBehavior =
-                Some(RichFeedbackBehaviorMarkNotInterestedTopic(topicId = topicId.toString)),
-              subprompt = None,
-              encodedFeedbackRequest = None
-            )
-          )
-        case _ => None
-      }
-    } else {
-      None
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/NotRelevantChildFeedbackActionBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/NotRelevantChildFeedbackActionBuilder.scala
deleted file mode 100644
index 39df781ce..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/NotRelevantChildFeedbackActionBuilder.scala
+++ /dev/null
@@ -1,54 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.ChildFeedbackAction
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.NotRelevant
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import com.twitter.timelines.common.{thriftscala => tlc}
-import com.twitter.timelineservice.model.FeedbackInfo
-import com.twitter.timelineservice.model.FeedbackMetadata
-import com.twitter.timelineservice.{thriftscala => tlst}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class NotRelevantChildFeedbackActionBuilder @Inject() (
-  @ProductScoped stringCenter: StringCenter,
-  externalStrings: HomeMixerExternalStrings) {
-
-  def apply(
-    candidate: TweetCandidate,
-    candidateFeatures: FeatureMap
-  ): Option[ChildFeedbackAction] = {
-    val prompt = stringCenter.prepare(externalStrings.notRelevantString)
-    val confirmation = stringCenter.prepare(externalStrings.notRelevantConfirmationString)
-    val feedbackMetadata = FeedbackMetadata(
-      engagementType = None,
-      entityIds = Seq(tlc.FeedbackEntity.TweetId(candidate.id)),
-      ttl = Some(FeedbackUtil.FeedbackTtl))
-    val feedbackUrl = FeedbackInfo.feedbackUrl(
-      feedbackType = tlst.FeedbackType.NotRelevant,
-      feedbackMetadata = feedbackMetadata,
-      injectionType = candidateFeatures.getOrElse(SuggestTypeFeature, None)
-    )
-
-    Some(
-      ChildFeedbackAction(
-        feedbackType = NotRelevant,
-        prompt = Some(prompt),
-        confirmation = Some(confirmation),
-        feedbackUrl = Some(feedbackUrl),
-        hasUndoAction = Some(true),
-        confirmationDisplayType = None,
-        clientEventInfo = None,
-        icon = None,
-        richBehavior = None,
-        subprompt = None
-      )
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/PopularInYourAreaSocialContextBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/PopularInYourAreaSocialContextBuilder.scala
deleted file mode 100644
index 3782dd115..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/PopularInYourAreaSocialContextBuilder.scala
+++ /dev/null
@@ -1,43 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.social_context.BaseSocialContextBuilder
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata._
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-import javax.inject.Inject
-import javax.inject.Provider
-import javax.inject.Singleton
-
-@Singleton
-case class PopularInYourAreaSocialContextBuilder @Inject() (
-  externalStrings: HomeMixerExternalStrings,
-  @ProductScoped stringCenterProvider: Provider[StringCenter])
-    extends BaseSocialContextBuilder[PipelineQuery, TweetCandidate] {
-
-  private val stringCenter = stringCenterProvider.get()
-  private val popularInYourAreaString = externalStrings.socialContextPopularInYourAreaString
-
-  def apply(
-    query: PipelineQuery,
-    candidate: TweetCandidate,
-    candidateFeatures: FeatureMap
-  ): Option[SocialContext] = {
-    val suggestTypeOpt = candidateFeatures.getOrElse(SuggestTypeFeature, None)
-    if (suggestTypeOpt.contains(st.SuggestType.RecommendedTrendTweet)) {
-      Some(
-        GeneralContext(
-          contextType = LocationGeneralContextType,
-          text = stringCenter.prepare(popularInYourAreaString),
-          url = None,
-          contextImageUrls = None,
-          landingUrl = None
-        ))
-    } else None
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/PopularVideoSocialContextBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/PopularVideoSocialContextBuilder.scala
deleted file mode 100644
index 7eef7f180..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/PopularVideoSocialContextBuilder.scala
+++ /dev/null
@@ -1,48 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.social_context.BaseSocialContextBuilder
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata._
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-import javax.inject.Inject
-import javax.inject.Provider
-import javax.inject.Singleton
-
-@Singleton
-case class PopularVideoSocialContextBuilder @Inject() (
-  externalStrings: HomeMixerExternalStrings,
-  @ProductScoped stringCenterProvider: Provider[StringCenter])
-    extends BaseSocialContextBuilder[PipelineQuery, TweetCandidate] {
-
-  private val stringCenter = stringCenterProvider.get()
-  private val popularVideoString = externalStrings.socialContextPopularVideoString
-
-  def apply(
-    query: PipelineQuery,
-    candidate: TweetCandidate,
-    candidateFeatures: FeatureMap
-  ): Option[SocialContext] = {
-    val suggestTypeOpt = candidateFeatures.getOrElse(SuggestTypeFeature, None)
-    if (suggestTypeOpt.contains(st.SuggestType.MediaTweet)) {
-      Some(
-        GeneralContext(
-          contextType = SparkleGeneralContextType,
-          text = stringCenter.prepare(popularVideoString),
-          url = None,
-          contextImageUrls = None,
-          landingUrl = Some(
-            Url(
-              urlType = DeepLink,
-              url = ""
-            )
-          )
-        ))
-    } else None
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/ReceivedReplySocialContextBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/ReceivedReplySocialContextBuilder.scala
deleted file mode 100644
index f1af07c98..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/ReceivedReplySocialContextBuilder.scala
+++ /dev/null
@@ -1,76 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.FocalTweetInNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.RealNamesFeature
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.social_context.BaseSocialContextBuilder
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.SocialContext
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata._
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import javax.inject.Inject
-import javax.inject.Provider
-import javax.inject.Singleton
-
-/**
- * Use '@A received a reply' as social context when the root Tweet is in network and the focal tweet is OON.
- *
- * This function should only be called for the root Tweet of convo modules. This is enforced by
- * [[HomeTweetSocialContextBuilder]].
- */
-@Singleton
-case class ReceivedReplySocialContextBuilder @Inject() (
-  externalStrings: HomeMixerExternalStrings,
-  @ProductScoped stringCenterProvider: Provider[StringCenter])
-    extends BaseSocialContextBuilder[PipelineQuery, TweetCandidate] {
-
-  private val stringCenter = stringCenterProvider.get()
-  private val receivedReplyString = externalStrings.socialContextReceivedReply
-
-  def apply(
-    query: PipelineQuery,
-    candidate: TweetCandidate,
-    candidateFeatures: FeatureMap
-  ): Option[SocialContext] = {
-
-    // If these values are missing default to not showing a received a reply banner
-    val inNetwork = candidateFeatures.getOrElse(InNetworkFeature, false)
-    val inNetworkFocalTweet =
-      candidateFeatures.getOrElse(FocalTweetInNetworkFeature, None).getOrElse(true)
-
-    if (inNetwork && !inNetworkFocalTweet) {
-
-      val authorIdOpt = candidateFeatures.getOrElse(AuthorIdFeature, None)
-      val realNames = candidateFeatures.getOrElse(RealNamesFeature, Map.empty[Long, String])
-      val authorNameOpt = authorIdOpt.flatMap(realNames.get)
-
-      (authorIdOpt, authorNameOpt) match {
-        case (Some(authorId), Some(authorName)) =>
-          Some(
-            GeneralContext(
-              contextType = ConversationGeneralContextType,
-              text = stringCenter
-                .prepare(receivedReplyString, placeholders = Map("user1" -> authorName)),
-              url = None,
-              contextImageUrls = None,
-              landingUrl = Some(
-                Url(
-                  urlType = DeepLink,
-                  url = "",
-                  urtEndpointOptions = None
-                )
-              )
-            )
-          )
-        case _ => None
-      }
-    } else {
-      None
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/ReportTweetChildFeedbackActionBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/ReportTweetChildFeedbackActionBuilder.scala
deleted file mode 100644
index a4ef0cbb2..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/ReportTweetChildFeedbackActionBuilder.scala
+++ /dev/null
@@ -1,37 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.model.marshalling.response.urt.icon
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.ChildFeedbackAction
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RichBehavior
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RichFeedbackBehaviorReportTweet
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class ReportTweetChildFeedbackActionBuilder @Inject() (
-  @ProductScoped stringCenter: StringCenter,
-  externalStrings: HomeMixerExternalStrings) {
-
-  def apply(
-    candidate: TweetCandidate
-  ): Option[ChildFeedbackAction] = {
-    Some(
-      ChildFeedbackAction(
-        feedbackType = RichBehavior,
-        prompt = Some(stringCenter.prepare(externalStrings.reportTweetString)),
-        confirmation = None,
-        feedbackUrl = None,
-        hasUndoAction = Some(true),
-        confirmationDisplayType = None,
-        clientEventInfo = None,
-        icon = Some(icon.Flag),
-        richBehavior = Some(RichFeedbackBehaviorReportTweet(candidate.id)),
-        subprompt = None
-      )
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/RetweeterChildFeedbackActionBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/RetweeterChildFeedbackActionBuilder.scala
deleted file mode 100644
index 006e93b58..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/RetweeterChildFeedbackActionBuilder.scala
+++ /dev/null
@@ -1,38 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.ScreenNamesFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.ChildFeedbackAction
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import com.twitter.timelines.service.{thriftscala => t}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class RetweeterChildFeedbackActionBuilder @Inject() (
-  @ProductScoped stringCenter: StringCenter,
-  externalStrings: HomeMixerExternalStrings) {
-
-  def apply(candidateFeatures: FeatureMap): Option[ChildFeedbackAction] = {
-    val isRetweet = candidateFeatures.getOrElse(IsRetweetFeature, false)
-
-    if (isRetweet) {
-      candidateFeatures.getOrElse(AuthorIdFeature, None).flatMap { retweeterId =>
-        FeedbackUtil.buildUserSeeFewerChildFeedbackAction(
-          userId = retweeterId,
-          namesByUserId = candidateFeatures.getOrElse(ScreenNamesFeature, Map.empty[Long, String]),
-          promptExternalString = externalStrings.showFewerRetweetsString,
-          confirmationExternalString = externalStrings.showFewerRetweetsConfirmationString,
-          engagementType = t.FeedbackEngagementType.Retweet,
-          stringCenter = stringCenter,
-          injectionType = candidateFeatures.getOrElse(SuggestTypeFeature, None)
-        )
-      }
-    } else None
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/TopicSocialContextBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/TopicSocialContextBuilder.scala
deleted file mode 100644
index 7d01382c3..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/TopicSocialContextBuilder.scala
+++ /dev/null
@@ -1,42 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.TopicContextFunctionalityTypeFeature
-import com.twitter.home_mixer.model.HomeFeatures.TopicIdSocialContextFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.decorator.urt.builder.social_context.BaseSocialContextBuilder
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.SocialContext
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.TopicContext
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class TopicSocialContextBuilder @Inject() ()
-    extends BaseSocialContextBuilder[PipelineQuery, TweetCandidate] {
-
-  def apply(
-    query: PipelineQuery,
-    candidate: TweetCandidate,
-    candidateFeatures: FeatureMap
-  ): Option[SocialContext] = {
-    val inNetwork = candidateFeatures.getOrElse(InNetworkFeature, true)
-    if (!inNetwork) {
-      val topicIdSocialContextOpt = candidateFeatures.getOrElse(TopicIdSocialContextFeature, None)
-      val topicContextFunctionalityTypeOpt =
-        candidateFeatures.getOrElse(TopicContextFunctionalityTypeFeature, None)
-      (topicIdSocialContextOpt, topicContextFunctionalityTypeOpt) match {
-        case (Some(topicId), Some(topicContextFunctionalityType)) =>
-          Some(
-            TopicContext(
-              topicId = topicId.toString,
-              functionalityType = Some(topicContextFunctionalityType)
-            ))
-        case _ => None
-      }
-    } else {
-      None
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/UnfollowUserChildFeedbackActionBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/UnfollowUserChildFeedbackActionBuilder.scala
deleted file mode 100644
index 864ee06d9..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder/UnfollowUserChildFeedbackActionBuilder.scala
+++ /dev/null
@@ -1,56 +0,0 @@
-package com.twitter.home_mixer.functional_component.decorator.urt.builder
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.ScreenNamesFeature
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.marshalling.response.urt.icon
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.ChildFeedbackAction
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RichBehavior
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RichFeedbackBehaviorToggleFollowUser
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class UnfollowUserChildFeedbackActionBuilder @Inject() (
-  @ProductScoped stringCenter: StringCenter,
-  externalStrings: HomeMixerExternalStrings) {
-
-  def apply(candidateFeatures: FeatureMap): Option[ChildFeedbackAction] = {
-    val isInNetwork = candidateFeatures.getOrElse(InNetworkFeature, false)
-    val userIdOpt = candidateFeatures.getOrElse(AuthorIdFeature, None)
-
-    if (isInNetwork) {
-      userIdOpt.flatMap { userId =>
-        val screenNamesMap =
-          candidateFeatures.getOrElse(ScreenNamesFeature, Map.empty[Long, String])
-        val userScreenNameOpt = screenNamesMap.get(userId)
-        userScreenNameOpt.map { userScreenName =>
-          val prompt = stringCenter.prepare(
-            externalStrings.unfollowUserString,
-            Map("username" -> userScreenName)
-          )
-          val confirmation = stringCenter.prepare(
-            externalStrings.unfollowUserConfirmationString,
-            Map("username" -> userScreenName)
-          )
-          ChildFeedbackAction(
-            feedbackType = RichBehavior,
-            prompt = Some(prompt),
-            confirmation = Some(confirmation),
-            feedbackUrl = None,
-            hasUndoAction = Some(true),
-            confirmationDisplayType = None,
-            clientEventInfo = None,
-            icon = Some(icon.Unfollow),
-            richBehavior = Some(RichFeedbackBehaviorToggleFollowUser(userId)),
-            subprompt = None
-          )
-        }
-      }
-    } else None
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/BUILD.bazel
deleted file mode 100644
index 60c104143..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/BUILD.bazel
+++ /dev/null
@@ -1,64 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "configapi/configapi-core/src/main/scala/com/twitter/timelines/configapi",
-        "configapi/configapi-decider",
-        "finatra/inject/inject-core/src/main/scala",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/service",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie",
-        "joinkey/src/main/scala/com/twitter/joinkey/context",
-        "joinkey/src/main/thrift/com/twitter/joinkey/context:joinkey-context-scala",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/timelines_impression_store",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/candidate/tweet_is_nsfw",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/candidate/tweet_visibility_reason",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/social_graph",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/candidate_source/strato",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/feature_hydrator",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/util",
-        "snowflake/src/main/scala/com/twitter/snowflake/id",
-        "src/java/com/twitter/search/common/util/lang",
-        "src/scala/com/twitter/timelines/prediction/adapters/request_context",
-        "src/thrift/com/twitter/gizmoduck:thrift-scala",
-        "src/thrift/com/twitter/recos/user_tweet_entity_graph:user_tweet_entity_graph-scala",
-        "src/thrift/com/twitter/search:earlybird-scala",
-        "src/thrift/com/twitter/search/common:constants-java",
-        "src/thrift/com/twitter/socialgraph:thrift-scala",
-        "src/thrift/com/twitter/spam/rtf:safety-result-scala",
-        "src/thrift/com/twitter/timelineranker:thrift-scala",
-        "src/thrift/com/twitter/timelines/impression:thrift-scala",
-        "src/thrift/com/twitter/timelines/impression_bloom_filter:thrift-scala",
-        "src/thrift/com/twitter/timelines/real_graph:real_graph-scala",
-        "src/thrift/com/twitter/timelinescorer/common/scoredtweetcandidate:thrift-scala",
-        "src/thrift/com/twitter/tweetypie:service-scala",
-        "src/thrift/com/twitter/tweetypie:tweet-scala",
-        "src/thrift/com/twitter/user_session_store:thrift-java",
-        "src/thrift/com/twitter/wtf/candidate:wtf-candidate-scala",
-        "stitch/stitch-core",
-        "stitch/stitch-gizmoduck",
-        "stitch/stitch-socialgraph",
-        "stitch/stitch-timelineservice",
-        "stitch/stitch-tweetypie",
-        "timelinemixer/common/src/main/scala/com/twitter/timelinemixer/clients/feedback",
-        "timelinemixer/common/src/main/scala/com/twitter/timelinemixer/clients/manhattan",
-        "timelinemixer/common/src/main/scala/com/twitter/timelinemixer/clients/persistence",
-        "timelines/src/main/scala/com/twitter/timelines/clients/manhattan/store",
-        "timelines/src/main/scala/com/twitter/timelines/impressionstore/impressionbloomfilter",
-        "timelines/src/main/scala/com/twitter/timelines/impressionstore/store",
-        "timelineservice/common/src/main/scala/com/twitter/timelineservice/model",
-        "user_session_store/src/main/scala/com/twitter/user_session_store",
-        "util/util-core",
-    ],
-    exports = [
-        "src/thrift/com/twitter/recos/user_tweet_entity_graph:user_tweet_entity_graph-scala",
-        "timelinemixer/common/src/main/scala/com/twitter/timelinemixer/clients/manhattan",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/DismissInfoQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/DismissInfoQueryFeatureHydrator.scala
deleted file mode 100644
index 976cd1e30..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/DismissInfoQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,45 +0,0 @@
-package com.twitter.home_mixer.functional_component.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.DismissInfoFeature
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.timelinemixer.clients.manhattan.InjectionHistoryClient
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelinemixer.clients.manhattan.DismissInfo
-import com.twitter.timelineservice.suggests.thriftscala.SuggestType
-import javax.inject.Inject
-import javax.inject.Singleton
-
-object DismissInfoQueryFeatureHydrator {
-  val DismissInfoSuggestTypes = Seq(SuggestType.WhoToFollow)
-}
-
-@Singleton
-case class DismissInfoQueryFeatureHydrator @Inject() (
-  dismissInfoClient: InjectionHistoryClient)
-    extends QueryFeatureHydrator[PipelineQuery] {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("DismissInfo")
-
-  override val features: Set[Feature[_, _]] = Set(DismissInfoFeature)
-
-  override def hydrate(query: PipelineQuery): Stitch[FeatureMap] =
-    Stitch.callFuture {
-      dismissInfoClient
-        .readDismissInfoEntries(
-          query.getRequiredUserId,
-          DismissInfoQueryFeatureHydrator.DismissInfoSuggestTypes).map { response =>
-          val dismissInfoMap = response.mapValues(DismissInfo.fromThrift)
-          FeatureMapBuilder().add(DismissInfoFeature, dismissInfoMap).build()
-        }
-    }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.8, 50, 60, 60)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/FeedbackHistoryQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/FeedbackHistoryQueryFeatureHydrator.scala
deleted file mode 100644
index c0793be4b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/FeedbackHistoryQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,32 +0,0 @@
-package com.twitter.home_mixer.functional_component.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.FeedbackHistoryFeature
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelinemixer.clients.feedback.FeedbackHistoryManhattanClient
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class FeedbackHistoryQueryFeatureHydrator @Inject() (
-  feedbackHistoryClient: FeedbackHistoryManhattanClient)
-    extends QueryFeatureHydrator[PipelineQuery] {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("FeedbackHistory")
-
-  override val features: Set[Feature[_, _]] = Set(FeedbackHistoryFeature)
-
-  override def hydrate(
-    query: PipelineQuery
-  ): Stitch[FeatureMap] =
-    Stitch
-      .callFuture(feedbackHistoryClient.get(query.getRequiredUserId))
-      .map { feedbackHistory =>
-        FeatureMapBuilder().add(FeedbackHistoryFeature, feedbackHistory).build()
-      }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/GizmoduckUserQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/GizmoduckUserQueryFeatureHydrator.scala
deleted file mode 100644
index 431711900..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/GizmoduckUserQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,50 +0,0 @@
-package com.twitter.home_mixer.functional_component.feature_hydrator
-
-import com.twitter.gizmoduck.{thriftscala => gt}
-import com.twitter.home_mixer.model.HomeFeatures.UserFollowingCountFeature
-import com.twitter.home_mixer.model.HomeFeatures.UserScreenNameFeature
-import com.twitter.home_mixer.model.HomeFeatures.UserTypeFeature
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.stitch.gizmoduck.Gizmoduck
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class GizmoduckUserQueryFeatureHydrator @Inject() (gizmoduck: Gizmoduck)
-    extends QueryFeatureHydrator[PipelineQuery] {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("GizmoduckUser")
-
-  override val features: Set[Feature[_, _]] =
-    Set(UserFollowingCountFeature, UserTypeFeature, UserScreenNameFeature)
-
-  private val queryFields: Set[gt.QueryFields] =
-    Set(gt.QueryFields.Counts, gt.QueryFields.Safety, gt.QueryFields.Profile)
-
-  override def hydrate(query: PipelineQuery): Stitch[FeatureMap] = {
-    val userId = query.getRequiredUserId
-    gizmoduck
-      .getUserById(
-        userId = userId,
-        queryFields = queryFields,
-        context = gt.LookupContext(forUserId = Some(userId), includeSoftUsers = true))
-      .map { user =>
-        FeatureMapBuilder()
-          .add(UserFollowingCountFeature, user.counts.map(_.following.toInt))
-          .add(UserTypeFeature, Some(user.userType))
-          .add(UserScreenNameFeature, user.profile.map(_.screenName))
-          .build()
-      }
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.7)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/ImpressionBloomFilterQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/ImpressionBloomFilterQueryFeatureHydrator.scala
deleted file mode 100644
index 6ece16ce0..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/ImpressionBloomFilterQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,62 +0,0 @@
-package com.twitter.home_mixer.functional_component.feature_hydrator
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.model.HomeFeatures.ImpressionBloomFilterFeature
-import com.twitter.home_mixer.model.request.HasSeenTweetIds
-import com.twitter.home_mixer.param.HomeGlobalParams.ImpressionBloomFilterFalsePositiveRateParam
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.clients.manhattan.store.ManhattanStoreClient
-import com.twitter.timelines.impressionbloomfilter.{thriftscala => blm}
-import com.twitter.timelines.impressionstore.impressionbloomfilter.ImpressionBloomFilter
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class ImpressionBloomFilterQueryFeatureHydrator[
-  Query <: PipelineQuery with HasSeenTweetIds] @Inject() (
-  bloomFilterClient: ManhattanStoreClient[
-    blm.ImpressionBloomFilterKey,
-    blm.ImpressionBloomFilterSeq
-  ]) extends QueryFeatureHydrator[Query] {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier(
-    "ImpressionBloomFilter")
-
-  private val ImpressionBloomFilterTTL = 7.day
-
-  override val features: Set[Feature[_, _]] = Set(ImpressionBloomFilterFeature)
-
-  private val SurfaceArea = blm.SurfaceArea.HomeTimeline
-
-  override def hydrate(query: Query): Stitch[FeatureMap] = {
-    val userId = query.getRequiredUserId
-    bloomFilterClient
-      .get(blm.ImpressionBloomFilterKey(userId, SurfaceArea))
-      .map(_.getOrElse(blm.ImpressionBloomFilterSeq(Seq.empty)))
-      .map { bloomFilterSeq =>
-        val updatedBloomFilterSeq =
-          if (query.seenTweetIds.forall(_.isEmpty)) bloomFilterSeq
-          else {
-            ImpressionBloomFilter.addSeenTweetIds(
-              surfaceArea = SurfaceArea,
-              tweetIds = query.seenTweetIds.get,
-              bloomFilterSeq = bloomFilterSeq,
-              timeToLive = ImpressionBloomFilterTTL,
-              falsePositiveRate = query.params(ImpressionBloomFilterFalsePositiveRateParam)
-            )
-          }
-        FeatureMapBuilder().add(ImpressionBloomFilterFeature, updatedBloomFilterSeq).build()
-      }
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.8)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/InNetworkFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/InNetworkFeatureHydrator.scala
deleted file mode 100644
index 55f002b1f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/InNetworkFeatureHydrator.scala
+++ /dev/null
@@ -1,41 +0,0 @@
-package com.twitter.home_mixer.functional_component.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.SGSFollowedUsersFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-object InNetworkFeatureHydrator
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("InNetwork")
-
-  override val features: Set[Feature[_, _]] = Set(InNetworkFeature)
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = {
-    val viewerId = query.getRequiredUserId
-    val followedUserIds = query.features.get.get(SGSFollowedUsersFeature).toSet
-
-    val featureMaps = candidates.map { candidate =>
-      // We use authorId and not sourceAuthorId here so that retweets are defined as in network
-      val isInNetworkOpt = candidate.features.getOrElse(AuthorIdFeature, None).map { authorId =>
-        // Users cannot follow themselves but this is in network by definition
-        val isSelfTweet = authorId == viewerId
-        isSelfTweet || followedUserIds.contains(authorId)
-      }
-      FeatureMapBuilder().add(InNetworkFeature, isInNetworkOpt.getOrElse(true)).build()
-    }
-    Stitch.value(featureMaps)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/LastNonPollingTimeQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/LastNonPollingTimeQueryFeatureHydrator.scala
deleted file mode 100644
index 9f3049049..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/LastNonPollingTimeQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,68 +0,0 @@
-package com.twitter.home_mixer.functional_component.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.FollowingLastNonPollingTimeFeature
-import com.twitter.home_mixer.model.HomeFeatures.LastNonPollingTimeFeature
-import com.twitter.home_mixer.model.HomeFeatures.NonPollingTimesFeature
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.user_session_store.ReadRequest
-import com.twitter.user_session_store.ReadWriteUserSessionStore
-import com.twitter.user_session_store.UserSessionDataset
-import com.twitter.user_session_store.UserSessionDataset.UserSessionDataset
-import com.twitter.util.Time
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class LastNonPollingTimeQueryFeatureHydrator @Inject() (
-  userSessionStore: ReadWriteUserSessionStore)
-    extends QueryFeatureHydrator[PipelineQuery] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("LastNonPollingTime")
-
-  override val features: Set[Feature[_, _]] = Set(
-    FollowingLastNonPollingTimeFeature,
-    LastNonPollingTimeFeature,
-    NonPollingTimesFeature
-  )
-
-  private val datasets: Set[UserSessionDataset] = Set(UserSessionDataset.NonPollingTimes)
-
-  override def hydrate(query: PipelineQuery): Stitch[FeatureMap] = {
-    userSessionStore
-      .read(ReadRequest(query.getRequiredUserId, datasets))
-      .map { userSession =>
-        val nonPollingTimestamps = userSession.flatMap(_.nonPollingTimestamps)
-
-        val lastNonPollingTime = nonPollingTimestamps
-          .flatMap(_.nonPollingTimestampsMs.headOption)
-          .map(Time.fromMilliseconds)
-
-        val followingLastNonPollingTime = nonPollingTimestamps
-          .flatMap(_.mostRecentHomeLatestNonPollingTimestampMs)
-          .map(Time.fromMilliseconds)
-
-        val nonPollingTimes = nonPollingTimestamps
-          .map(_.nonPollingTimestampsMs)
-          .getOrElse(Seq.empty)
-
-        FeatureMapBuilder()
-          .add(FollowingLastNonPollingTimeFeature, followingLastNonPollingTime)
-          .add(LastNonPollingTimeFeature, lastNonPollingTime)
-          .add(NonPollingTimesFeature, nonPollingTimes)
-          .build()
-      }
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.9)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/NamesFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/NamesFeatureHydrator.scala
deleted file mode 100644
index ede075e5c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/NamesFeatureHydrator.scala
+++ /dev/null
@@ -1,97 +0,0 @@
-package com.twitter.home_mixer.functional_component.feature_hydrator
-
-import com.twitter.gizmoduck.{thriftscala => gt}
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.FavoritedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.FollowedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.RealNamesFeature
-import com.twitter.home_mixer.model.HomeFeatures.ScreenNamesFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceUserIdFeature
-import com.twitter.home_mixer.model.request.FollowingProduct
-import com.twitter.home_mixer.param.HomeGlobalParams.EnableNahFeedbackInfoParam
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.Conditionally
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.stitch.gizmoduck.Gizmoduck
-import com.twitter.util.Return
-import javax.inject.Inject
-import javax.inject.Singleton
-
-protected case class ProfileNames(screenName: String, realName: String)
-
-@Singleton
-class NamesFeatureHydrator @Inject() (gizmoduck: Gizmoduck)
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate]
-    with Conditionally[PipelineQuery] {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("Names")
-
-  override val features: Set[Feature[_, _]] = Set(ScreenNamesFeature, RealNamesFeature)
-
-  override def onlyIf(query: PipelineQuery): Boolean = query.product match {
-    case FollowingProduct => query.params(EnableNahFeedbackInfoParam)
-    case _ => true
-  }
-
-  private val queryFields: Set[gt.QueryFields] = Set(gt.QueryFields.Profile)
-
-  /**
-   * The UI currently only ever displays the first 2 names in social context lines
-   * E.g. "User and 3 others like" or "UserA and UserB liked"
-   */
-  private val MaxCountUsers = 2
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = {
-
-    val candidateUserIdsMap = candidates.map { candidate =>
-      candidate.candidate.id ->
-        (candidate.features.getOrElse(FavoritedByUserIdsFeature, Nil).take(MaxCountUsers) ++
-          candidate.features.getOrElse(FollowedByUserIdsFeature, Nil).take(MaxCountUsers) ++
-          candidate.features.getOrElse(AuthorIdFeature, None) ++
-          candidate.features.getOrElse(SourceUserIdFeature, None)).distinct
-    }.toMap
-
-    val distinctUserIds = candidateUserIdsMap.values.flatten.toSeq.distinct
-
-    Stitch
-      .collectToTry(distinctUserIds.map(userId => gizmoduck.getUserById(userId, queryFields)))
-      .map { allUsers =>
-        val idToProfileNamesMap = allUsers.flatMap {
-          case Return(allUser) =>
-            allUser.profile
-              .map(profile => allUser.id -> ProfileNames(profile.screenName, profile.name))
-          case _ => None
-        }.toMap
-
-        val validUserIds = idToProfileNamesMap.keySet
-
-        candidates.map { candidate =>
-          val combinedMap = candidateUserIdsMap
-            .getOrElse(candidate.candidate.id, Nil)
-            .flatMap {
-              case userId if validUserIds.contains(userId) =>
-                idToProfileNamesMap.get(userId).map(profileNames => userId -> profileNames)
-              case _ => None
-            }
-
-          val perCandidateRealNameMap = combinedMap.map { case (k, v) => k -> v.realName }.toMap
-          val perCandidateScreenNameMap = combinedMap.map { case (k, v) => k -> v.screenName }.toMap
-
-          FeatureMapBuilder()
-            .add(ScreenNamesFeature, perCandidateScreenNameMap)
-            .add(RealNamesFeature, perCandidateRealNameMap)
-            .build()
-        }
-      }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/PersistenceStoreQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/PersistenceStoreQueryFeatureHydrator.scala
deleted file mode 100644
index b7aae811b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/PersistenceStoreQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,118 +0,0 @@
-package com.twitter.home_mixer.functional_component.feature_hydrator
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.common_internal.analytics.twitter_client_user_agent_parser.UserAgent
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.model.HomeFeatures.PersistenceEntriesFeature
-import com.twitter.home_mixer.model.HomeFeatures.ServedTweetIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.ServedTweetPreviewIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.WhoToFollowExcludedUserIdsFeature
-import com.twitter.home_mixer.model.request.FollowingProduct
-import com.twitter.home_mixer.model.request.ForYouProduct
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelinemixer.clients.persistence.TimelineResponseBatchesClient
-import com.twitter.timelinemixer.clients.persistence.TimelineResponseV3
-import com.twitter.timelines.util.client_info.ClientPlatform
-import com.twitter.timelineservice.model.TimelineQuery
-import com.twitter.timelineservice.model.core.TimelineKind
-import com.twitter.timelineservice.model.rich.EntityIdType
-import com.twitter.util.Time
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class PersistenceStoreQueryFeatureHydrator @Inject() (
-  timelineResponseBatchesClient: TimelineResponseBatchesClient[TimelineResponseV3],
-  statsReceiver: StatsReceiver)
-    extends QueryFeatureHydrator[PipelineQuery] {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("PersistenceStore")
-
-  private val scopedStatsReceiver = statsReceiver.scope(getClass.getSimpleName)
-  private val servedTweetIdsSizeStat = scopedStatsReceiver.stat("ServedTweetIdsSize")
-
-  private val WhoToFollowExcludedUserIdsLimit = 1000
-  private val ServedTweetIdsDuration = 10.minutes
-  private val ServedTweetIdsLimit = 100
-  private val ServedTweetPreviewIdsDuration = 10.hours
-  private val ServedTweetPreviewIdsLimit = 10
-
-  override val features: Set[Feature[_, _]] =
-    Set(
-      ServedTweetIdsFeature,
-      ServedTweetPreviewIdsFeature,
-      PersistenceEntriesFeature,
-      WhoToFollowExcludedUserIdsFeature)
-
-  private val supportedClients = Seq(
-    ClientPlatform.IPhone,
-    ClientPlatform.IPad,
-    ClientPlatform.Mac,
-    ClientPlatform.Android,
-    ClientPlatform.Web,
-    ClientPlatform.RWeb,
-    ClientPlatform.TweetDeckGryphon
-  )
-
-  override def hydrate(query: PipelineQuery): Stitch[FeatureMap] = {
-    val timelineKind = query.product match {
-      case FollowingProduct => TimelineKind.homeLatest
-      case ForYouProduct => TimelineKind.home
-      case other => throw new UnsupportedOperationException(s"Unknown product: $other")
-    }
-    val timelineQuery = TimelineQuery(id = query.getRequiredUserId, kind = timelineKind)
-
-    Stitch.callFuture {
-      timelineResponseBatchesClient
-        .get(query = timelineQuery, clientPlatforms = supportedClients)
-        .map { timelineResponses =>
-          // Note that the WTF entries are not being scoped by ClientPlatform
-          val whoToFollowUserIds = timelineResponses
-            .flatMap { timelineResponse =>
-              timelineResponse.entries
-                .filter(_.entityIdType == EntityIdType.WhoToFollow)
-                .flatMap(_.itemIds.toSeq.flatMap(_.flatMap(_.userId)))
-            }.take(WhoToFollowExcludedUserIdsLimit)
-
-          val clientPlatform = ClientPlatform.fromQueryOptions(
-            clientAppId = query.clientContext.appId,
-            userAgent = query.clientContext.userAgent.flatMap(UserAgent.fromString))
-
-          val servedTweetIds = timelineResponses
-            .filter(_.clientPlatform == clientPlatform)
-            .filter(_.servedTime >= Time.now - ServedTweetIdsDuration)
-            .sortBy(-_.servedTime.inMilliseconds)
-            .flatMap(
-              _.entries.flatMap(_.tweetIds(includeSourceTweets = true)).take(ServedTweetIdsLimit))
-
-          servedTweetIdsSizeStat.add(servedTweetIds.size)
-
-          val servedTweetPreviewIds = timelineResponses
-            .filter(_.clientPlatform == clientPlatform)
-            .filter(_.servedTime >= Time.now - ServedTweetPreviewIdsDuration)
-            .sortBy(-_.servedTime.inMilliseconds)
-            .flatMap(_.entries
-              .filter(_.entityIdType == EntityIdType.TweetPreview)
-              .flatMap(_.tweetIds(includeSourceTweets = true)).take(ServedTweetPreviewIdsLimit))
-
-          FeatureMapBuilder()
-            .add(ServedTweetIdsFeature, servedTweetIds)
-            .add(ServedTweetPreviewIdsFeature, servedTweetPreviewIds)
-            .add(PersistenceEntriesFeature, timelineResponses)
-            .add(WhoToFollowExcludedUserIdsFeature, whoToFollowUserIds)
-            .build()
-        }
-    }
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.7, 50, 60, 60)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/PerspectiveFilteredSocialContextFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/PerspectiveFilteredSocialContextFeatureHydrator.scala
deleted file mode 100644
index 602a8b2dc..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/PerspectiveFilteredSocialContextFeatureHydrator.scala
+++ /dev/null
@@ -1,72 +0,0 @@
-package com.twitter.home_mixer.functional_component.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.FavoritedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.PerspectiveFilteredLikedByUserIdsFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.stitch.Stitch
-import com.twitter.stitch.timelineservice.TimelineService
-import com.twitter.stitch.timelineservice.TimelineService.GetPerspectives
-import com.twitter.timelineservice.thriftscala.PerspectiveType
-import com.twitter.timelineservice.thriftscala.PerspectiveType.Favorited
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Filter out unlike edges from liked-by tweets
- * Useful if the likes come from a cache and because UTEG does not fully remove unlike edges.
- */
-@Singleton
-class PerspectiveFilteredSocialContextFeatureHydrator @Inject() (timelineService: TimelineService)
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("PerspectiveFilteredSocialContext")
-
-  override val features: Set[Feature[_, _]] = Set(PerspectiveFilteredLikedByUserIdsFeature)
-
-  private val MaxCountUsers = 10
-  private val favoritePerspectiveSet: Set[PerspectiveType] = Set(Favorited)
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offloadStitch {
-    val engagingUserIdtoTweetId = candidates.flatMap { candidate =>
-      candidate.features
-        .getOrElse(FavoritedByUserIdsFeature, Seq.empty).take(MaxCountUsers)
-        .map(favoritedBy => favoritedBy -> candidate.candidate.id)
-    }
-
-    val queries = engagingUserIdtoTweetId.map {
-      case (userId, tweetId) =>
-        GetPerspectives.Query(userId = userId, tweetId = tweetId, types = favoritePerspectiveSet)
-    }
-
-    Stitch.collect(queries.map(timelineService.getPerspective)).map { perspectiveResults =>
-      val validUserIdTweetIds: Set[(Long, Long)] =
-        queries
-          .zip(perspectiveResults)
-          .collect { case (query, perspective) if perspective.favorited => query }
-          .map(query => (query.userId, query.tweetId))
-          .toSet
-
-      candidates.map { candidate =>
-        val perspectiveFilteredFavoritedByUserIds: Seq[Long] = candidate.features
-          .getOrElse(FavoritedByUserIdsFeature, Seq.empty).take(MaxCountUsers)
-          .filter { userId => validUserIdTweetIds.contains((userId, candidate.candidate.id)) }
-
-        FeatureMapBuilder()
-          .add(PerspectiveFilteredLikedByUserIdsFeature, perspectiveFilteredFavoritedByUserIds)
-          .build()
-      }
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/RealGraphInNetworkScoresQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/RealGraphInNetworkScoresQueryFeatureHydrator.scala
deleted file mode 100644
index 92ab90f2c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/RealGraphInNetworkScoresQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,46 +0,0 @@
-package com.twitter.home_mixer.functional_component.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.RealGraphInNetworkScoresFeature
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.RealGraphInNetworkScores
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.storehaus.ReadableStore
-import com.twitter.wtf.candidate.{thriftscala => wtf}
-import javax.inject.Inject
-import javax.inject.Named
-import javax.inject.Singleton
-
-@Singleton
-case class RealGraphInNetworkScoresQueryFeatureHydrator @Inject() (
-  @Named(RealGraphInNetworkScores) store: ReadableStore[Long, Seq[wtf.Candidate]])
-    extends QueryFeatureHydrator[PipelineQuery] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("RealGraphInNetworkScores")
-
-  override val features: Set[Feature[_, _]] = Set(RealGraphInNetworkScoresFeature)
-
-  private val RealGraphCandidateCount = 1000
-
-  override def hydrate(query: PipelineQuery): Stitch[FeatureMap] = {
-    Stitch.callFuture(store.get(query.getRequiredUserId)).map { realGraphFollowedUsers =>
-      val realGraphScoresFeatures = realGraphFollowedUsers
-        .getOrElse(Seq.empty)
-        .sortBy(-_.score)
-        .map(candidate => candidate.userId -> scaleScore(candidate.score))
-        .take(RealGraphCandidateCount)
-        .toMap
-
-      FeatureMapBuilder().add(RealGraphInNetworkScoresFeature, realGraphScoresFeatures).build()
-    }
-  }
-
-  // Rescale Real Graph v2 scores from [0,1] to the v1 scores distribution [1,2.97]
-  private def scaleScore(score: Double): Double =
-    if (score >= 0.0 && score <= 1.0) score * 1.97 + 1.0 else score
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/RequestQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/RequestQueryFeatureHydrator.scala
deleted file mode 100644
index 3968c9532..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/RequestQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,121 +0,0 @@
-package com.twitter.home_mixer.functional_component.feature_hydrator
-
-import com.twitter.finagle.tracing.Annotation.BinaryAnnotation
-import com.twitter.finagle.tracing.ForwardAnnotation
-import com.twitter.home_mixer.model.HomeFeatures._
-import com.twitter.home_mixer.model.request.DeviceContext.RequestContext
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.joinkey.context.RequestJoinKeyContext
-import com.twitter.product_mixer.component_library.model.cursor.UrtOrderedCursor
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.BottomCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.GapCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.TopCursor
-import com.twitter.product_mixer.core.pipeline.HasPipelineCursor
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.BadRequest
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.PipelineFailure
-import com.twitter.search.common.util.lang.ThriftLanguageUtil
-import com.twitter.snowflake.id.SnowflakeId
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.prediction.adapters.request_context.RequestContextAdapter.dowFromTimestamp
-import com.twitter.timelines.prediction.adapters.request_context.RequestContextAdapter.hourFromTimestamp
-import java.util.UUID
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class RequestQueryFeatureHydrator[
-  Query <: PipelineQuery with HasPipelineCursor[UrtOrderedCursor] with HasDeviceContext] @Inject() (
-) extends QueryFeatureHydrator[Query] {
-
-  override val features: Set[Feature[_, _]] = Set(
-    AccountAgeFeature,
-    ClientIdFeature,
-    DeviceLanguageFeature,
-    GetInitialFeature,
-    GetMiddleFeature,
-    GetNewerFeature,
-    GetOlderFeature,
-    GuestIdFeature,
-    HasDarkRequestFeature,
-    IsForegroundRequestFeature,
-    IsLaunchRequestFeature,
-    PollingFeature,
-    PullToRefreshFeature,
-    RequestJoinIdFeature,
-    ServedRequestIdFeature,
-    TimestampFeature,
-    TimestampGMTDowFeature,
-    TimestampGMTHourFeature,
-    ViewerIdFeature
-  )
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("Request")
-
-  private val DarkRequestAnnotation = "clnt/has_dark_request"
-
-  // Convert Language code to ISO 639-3 format
-  private def getLanguageISOFormatByCode(languageCode: String): String =
-    ThriftLanguageUtil.getLanguageCodeOf(ThriftLanguageUtil.getThriftLanguageOf(languageCode))
-
-  private def getRequestJoinId(servedRequestId: Long): Option[Long] =
-    Some(RequestJoinKeyContext.current.flatMap(_.requestJoinId).getOrElse(servedRequestId))
-
-  private def hasDarkRequest: Option[Boolean] = ForwardAnnotation.current
-    .getOrElse(Seq[BinaryAnnotation]())
-    .find(_.key == DarkRequestAnnotation)
-    .map(_.value.asInstanceOf[Boolean])
-
-  override def hydrate(query: Query): Stitch[FeatureMap] = {
-    val requestContext = query.deviceContext.flatMap(_.requestContextValue)
-    val servedRequestId = UUID.randomUUID.getMostSignificantBits
-    val timestamp = query.queryTime.inMilliseconds
-
-    val featureMap = FeatureMapBuilder()
-      .add(AccountAgeFeature, query.getOptionalUserId.flatMap(SnowflakeId.timeFromIdOpt))
-      .add(ClientIdFeature, query.clientContext.appId)
-      .add(DeviceLanguageFeature, query.getLanguageCode.map(getLanguageISOFormatByCode))
-      .add(
-        GetInitialFeature,
-        query.pipelineCursor.forall(cursor => cursor.id.isEmpty && cursor.gapBoundaryId.isEmpty))
-      .add(
-        GetMiddleFeature,
-        query.pipelineCursor.exists(cursor =>
-          cursor.id.isDefined && cursor.gapBoundaryId.isDefined &&
-            cursor.cursorType.contains(GapCursor)))
-      .add(
-        GetNewerFeature,
-        query.pipelineCursor.exists(cursor =>
-          cursor.id.isDefined && cursor.gapBoundaryId.isEmpty &&
-            cursor.cursorType.contains(TopCursor)))
-      .add(
-        GetOlderFeature,
-        query.pipelineCursor.exists(cursor =>
-          cursor.id.isDefined && cursor.gapBoundaryId.isEmpty &&
-            cursor.cursorType.contains(BottomCursor)))
-      .add(GuestIdFeature, query.clientContext.guestId)
-      .add(IsForegroundRequestFeature, requestContext.contains(RequestContext.Foreground))
-      .add(IsLaunchRequestFeature, requestContext.contains(RequestContext.Launch))
-      .add(PollingFeature, query.deviceContext.exists(_.isPolling.contains(true)))
-      .add(PullToRefreshFeature, requestContext.contains(RequestContext.PullToRefresh))
-      .add(ServedRequestIdFeature, Some(servedRequestId))
-      .add(RequestJoinIdFeature, getRequestJoinId(servedRequestId))
-      .add(TimestampFeature, timestamp)
-      .add(TimestampGMTDowFeature, dowFromTimestamp(timestamp))
-      .add(TimestampGMTHourFeature, hourFromTimestamp(timestamp))
-      .add(HasDarkRequestFeature, hasDarkRequest)
-      .add(
-        ViewerIdFeature,
-        query.getOptionalUserId
-          .orElse(query.getGuestId).getOrElse(
-            throw PipelineFailure(BadRequest, "Missing viewer id")))
-      .build()
-
-    Stitch.value(featureMap)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/SGSValidSocialContextFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/SGSValidSocialContextFeatureHydrator.scala
deleted file mode 100644
index 92c351ecf..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/SGSValidSocialContextFeatureHydrator.scala
+++ /dev/null
@@ -1,105 +0,0 @@
-package com.twitter.home_mixer.functional_component.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.FavoritedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.FollowedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.SGSValidFollowedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.SGSValidLikedByUserIdsFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.socialgraph.{thriftscala => sg}
-import com.twitter.stitch.Stitch
-import com.twitter.stitch.socialgraph.SocialGraph
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * This hydrator takes liked-by and followed-by user ids and checks via SGS that the viewer is
- * following the engager, that the viewer is not blocking the engager, that the engager is not
- * blocking the viewer, and that the viewer has not muted the engager.
- */
-@Singleton
-class SGSValidSocialContextFeatureHydrator @Inject() (
-  socialGraph: SocialGraph)
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("SGSValidSocialContext")
-
-  override val features: Set[Feature[_, _]] = Set(
-    SGSValidFollowedByUserIdsFeature,
-    SGSValidLikedByUserIdsFeature
-  )
-
-  private val MaxCountUsers = 10
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offloadStitch {
-    val allSocialContextUserIds =
-      candidates.flatMap { candidate =>
-        candidate.features.getOrElse(FavoritedByUserIdsFeature, Nil).take(MaxCountUsers) ++
-          candidate.features.getOrElse(FollowedByUserIdsFeature, Nil).take(MaxCountUsers)
-      }.distinct
-
-    getValidUserIds(query.getRequiredUserId, allSocialContextUserIds).map { validUserIds =>
-      candidates.map { candidate =>
-        val sgsFilteredLikedByUserIds =
-          candidate.features
-            .getOrElse(FavoritedByUserIdsFeature, Nil).take(MaxCountUsers)
-            .filter(validUserIds.contains)
-
-        val sgsFilteredFollowedByUserIds =
-          candidate.features
-            .getOrElse(FollowedByUserIdsFeature, Nil).take(MaxCountUsers)
-            .filter(validUserIds.contains)
-
-        FeatureMapBuilder()
-          .add(SGSValidFollowedByUserIdsFeature, sgsFilteredFollowedByUserIds)
-          .add(SGSValidLikedByUserIdsFeature, sgsFilteredLikedByUserIds)
-          .build()
-      }
-    }
-  }
-
-  private def getValidUserIds(
-    viewerId: Long,
-    socialProofUserIds: Seq[Long]
-  ): Stitch[Seq[Long]] = {
-    if (socialProofUserIds.nonEmpty) {
-      val request = sg.IdsRequest(
-        relationships = Seq(
-          sg.SrcRelationship(
-            viewerId,
-            sg.RelationshipType.Following,
-            targets = Some(socialProofUserIds),
-            hasRelationship = true),
-          sg.SrcRelationship(
-            viewerId,
-            sg.RelationshipType.Blocking,
-            targets = Some(socialProofUserIds),
-            hasRelationship = false),
-          sg.SrcRelationship(
-            viewerId,
-            sg.RelationshipType.BlockedBy,
-            targets = Some(socialProofUserIds),
-            hasRelationship = false),
-          sg.SrcRelationship(
-            viewerId,
-            sg.RelationshipType.Muting,
-            targets = Some(socialProofUserIds),
-            hasRelationship = false)
-        ),
-        pageRequest = Some(sg.PageRequest(selectAll = Some(true)))
-      )
-      socialGraph.ids(request).map(_.ids)
-    } else Stitch.Nil
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/TweetImpressionsQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/TweetImpressionsQueryFeatureHydrator.scala
deleted file mode 100644
index 0fc6fd1f5..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/TweetImpressionsQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,87 +0,0 @@
-package com.twitter.home_mixer.functional_component.feature_hydrator
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.model.HomeFeatures.TweetImpressionsFeature
-import com.twitter.home_mixer.model.request.HasSeenTweetIds
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.impression.{thriftscala => t}
-import com.twitter.timelines.impressionstore.store.ManhattanTweetImpressionStoreClient
-import com.twitter.util.Duration
-import com.twitter.util.Time
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class TweetImpressionsQueryFeatureHydrator[
-  Query <: PipelineQuery with HasSeenTweetIds] @Inject() (
-  manhattanTweetImpressionStoreClient: ManhattanTweetImpressionStoreClient)
-    extends QueryFeatureHydrator[Query] {
-
-  private val TweetImpressionTTL = 2.days
-  private val TweetImpressionCap = 5000
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("TweetImpressions")
-
-  override val features: Set[Feature[_, _]] = Set(TweetImpressionsFeature)
-
-  override def hydrate(query: Query): Stitch[FeatureMap] = {
-    manhattanTweetImpressionStoreClient.get(query.getRequiredUserId).map { entriesOpt =>
-      val entries = entriesOpt.map(_.entries).toSeq.flatten
-      val updatedImpressions =
-        if (query.seenTweetIds.forall(_.isEmpty)) entries
-        else updateTweetImpressions(entries, query.seenTweetIds.get)
-
-      FeatureMapBuilder().add(TweetImpressionsFeature, updatedImpressions).build()
-    }
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.8)
-  )
-
-  /**
-   * 1) Check timestamps and remove expired tweets based on [[TweetImpressionTTL]]
-   * 2) Filter duplicates between current tweets and those in the impression store (remove older ones)
-   * 3) Prepend new (Timestamp, Seq[TweetIds]) to the tweets from the impression store
-   * 4) Truncate older tweets if sum of all tweets across timestamps >= [[TweetImpressionCap]],
-   */
-  private[feature_hydrator] def updateTweetImpressions(
-    tweetImpressionsFromStore: Seq[t.TweetImpressionsEntry],
-    seenIdsFromClient: Seq[Long],
-    currentTime: Long = Time.now.inMilliseconds,
-    tweetImpressionTTL: Duration = TweetImpressionTTL,
-    tweetImpressionCap: Int = TweetImpressionCap,
-  ): Seq[t.TweetImpressionsEntry] = {
-    val seenIdsFromClientSet = seenIdsFromClient.toSet
-    val dedupedTweetImpressionsFromStore: Seq[t.TweetImpressionsEntry] = tweetImpressionsFromStore
-      .collect {
-        case t.TweetImpressionsEntry(ts, tweetIds)
-            if Time.fromMilliseconds(ts).untilNow < tweetImpressionTTL =>
-          t.TweetImpressionsEntry(ts, tweetIds.filterNot(seenIdsFromClientSet.contains))
-      }.filter { _.tweetIds.nonEmpty }
-
-    val mergedTweetImpressionsEntries =
-      t.TweetImpressionsEntry(currentTime, seenIdsFromClient) +: dedupedTweetImpressionsFromStore
-    val initialTweetImpressionsWithCap = (Seq.empty[t.TweetImpressionsEntry], tweetImpressionCap)
-
-    val (truncatedTweetImpressionsEntries: Seq[t.TweetImpressionsEntry], _) =
-      mergedTweetImpressionsEntries
-        .foldLeft(initialTweetImpressionsWithCap) {
-          case (
-                (tweetImpressions: Seq[t.TweetImpressionsEntry], remainingCap),
-                t.TweetImpressionsEntry(ts, tweetIds)) if remainingCap > 0 =>
-            (
-              t.TweetImpressionsEntry(ts, tweetIds.take(remainingCap)) +: tweetImpressions,
-              remainingCap - tweetIds.size)
-          case (tweetImpressionsWithCap, _) => tweetImpressionsWithCap
-        }
-    truncatedTweetImpressionsEntries.reverse
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/TweetypieFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/TweetypieFeatureHydrator.scala
deleted file mode 100644
index f2effa1b2..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator/TweetypieFeatureHydrator.scala
+++ /dev/null
@@ -1,179 +0,0 @@
-package com.twitter.home_mixer.functional_component.feature_hydrator
-
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.ExclusiveConversationAuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsHydratedFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsNsfwFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedTweetDroppedFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.TweetLanguageFeature
-import com.twitter.home_mixer.model.HomeFeatures.TweetTextFeature
-import com.twitter.home_mixer.model.request.FollowingProduct
-import com.twitter.home_mixer.model.request.ForYouProduct
-import com.twitter.home_mixer.model.request.ListTweetsProduct
-import com.twitter.home_mixer.model.request.ScoredTweetsProduct
-import com.twitter.home_mixer.model.request.SubscribedProduct
-import com.twitter.home_mixer.util.tweetypie.RequestFields
-import com.twitter.product_mixer.component_library.feature_hydrator.candidate.tweet_is_nsfw.IsNsfw
-import com.twitter.product_mixer.component_library.feature_hydrator.candidate.tweet_visibility_reason.VisibilityReason
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.CandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.spam.rtf.{thriftscala => rtf}
-import com.twitter.stitch.Stitch
-import com.twitter.stitch.tweetypie.{TweetyPie => TweetypieStitchClient}
-import com.twitter.tweetypie.{thriftscala => tp}
-import com.twitter.util.logging.Logging
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class TweetypieFeatureHydrator @Inject() (
-  tweetypieStitchClient: TweetypieStitchClient,
-  statsReceiver: StatsReceiver)
-    extends CandidateFeatureHydrator[PipelineQuery, TweetCandidate]
-    with Logging {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("Tweetypie")
-
-  override val features: Set[Feature[_, _]] = Set(
-    AuthorIdFeature,
-    ExclusiveConversationAuthorIdFeature,
-    InReplyToTweetIdFeature,
-    IsHydratedFeature,
-    IsNsfw,
-    IsNsfwFeature,
-    IsRetweetFeature,
-    QuotedTweetDroppedFeature,
-    QuotedTweetIdFeature,
-    QuotedUserIdFeature,
-    SourceTweetIdFeature,
-    SourceUserIdFeature,
-    TweetTextFeature,
-    TweetLanguageFeature,
-    VisibilityReason
-  )
-
-  private val DefaultFeatureMap = FeatureMapBuilder()
-    .add(IsHydratedFeature, false)
-    .add(IsNsfw, None)
-    .add(IsNsfwFeature, false)
-    .add(QuotedTweetDroppedFeature, false)
-    .add(TweetTextFeature, None)
-    .add(VisibilityReason, None)
-    .build()
-
-  override def apply(
-    query: PipelineQuery,
-    candidate: TweetCandidate,
-    existingFeatures: FeatureMap
-  ): Stitch[FeatureMap] = {
-    val safetyLevel = query.product match {
-      case FollowingProduct => rtf.SafetyLevel.TimelineHomeLatest
-      case ForYouProduct =>
-        val inNetwork = existingFeatures.getOrElse(InNetworkFeature, true)
-        if (inNetwork) rtf.SafetyLevel.TimelineHome else rtf.SafetyLevel.TimelineHomeRecommendations
-      case ScoredTweetsProduct => rtf.SafetyLevel.TimelineHome
-      case ListTweetsProduct => rtf.SafetyLevel.TimelineLists
-      case SubscribedProduct => rtf.SafetyLevel.TimelineHomeSubscribed
-      case unknown => throw new UnsupportedOperationException(s"Unknown product: $unknown")
-    }
-
-    val tweetFieldsOptions = tp.GetTweetFieldsOptions(
-      tweetIncludes = RequestFields.TweetTPHydrationFields,
-      includeRetweetedTweet = true,
-      includeQuotedTweet = true,
-      visibilityPolicy = tp.TweetVisibilityPolicy.UserVisible,
-      safetyLevel = Some(safetyLevel),
-      forUserId = query.getOptionalUserId
-    )
-
-    val exclusiveAuthorIdOpt =
-      existingFeatures.getOrElse(ExclusiveConversationAuthorIdFeature, None)
-
-    tweetypieStitchClient.getTweetFields(tweetId = candidate.id, options = tweetFieldsOptions).map {
-      case tp.GetTweetFieldsResult(_, tp.TweetFieldsResultState.Found(found), quoteOpt, _) =>
-        val coreData = found.tweet.coreData
-        val isNsfwAdmin = coreData.exists(_.nsfwAdmin)
-        val isNsfwUser = coreData.exists(_.nsfwUser)
-
-        val quotedTweetDropped = quoteOpt.exists {
-          case _: tp.TweetFieldsResultState.Filtered => true
-          case _: tp.TweetFieldsResultState.NotFound => true
-          case _ => false
-        }
-        val quotedTweetIsNsfw = quoteOpt.exists {
-          case quoteTweet: tp.TweetFieldsResultState.Found =>
-            quoteTweet.found.tweet.coreData.exists(data => data.nsfwAdmin || data.nsfwUser)
-          case _ => false
-        }
-
-        val sourceTweetIsNsfw =
-          found.retweetedTweet.exists(_.coreData.exists(data => data.nsfwAdmin || data.nsfwUser))
-
-        val tweetText = coreData.map(_.text)
-        val tweetLanguage = found.tweet.language.map(_.language)
-
-        val tweetAuthorId = coreData.map(_.userId)
-        val inReplyToTweetId = coreData.flatMap(_.reply.flatMap(_.inReplyToStatusId))
-        val retweetedTweetId = found.retweetedTweet.map(_.id)
-        val quotedTweetId = quoteOpt.flatMap {
-          case quoteTweet: tp.TweetFieldsResultState.Found =>
-            Some(quoteTweet.found.tweet.id)
-          case _ => None
-        }
-
-        val retweetedTweetUserId = found.retweetedTweet.flatMap(_.coreData).map(_.userId)
-        val quotedTweetUserId = quoteOpt.flatMap {
-          case quoteTweet: tp.TweetFieldsResultState.Found =>
-            quoteTweet.found.tweet.coreData.map(_.userId)
-          case _ => None
-        }
-
-        val isNsfw = isNsfwAdmin || isNsfwUser || sourceTweetIsNsfw || quotedTweetIsNsfw
-
-        FeatureMapBuilder()
-          .add(AuthorIdFeature, tweetAuthorId)
-          .add(ExclusiveConversationAuthorIdFeature, exclusiveAuthorIdOpt)
-          .add(InReplyToTweetIdFeature, inReplyToTweetId)
-          .add(IsHydratedFeature, true)
-          .add(IsNsfw, Some(isNsfw))
-          .add(IsNsfwFeature, isNsfw)
-          .add(IsRetweetFeature, retweetedTweetId.isDefined)
-          .add(QuotedTweetDroppedFeature, quotedTweetDropped)
-          .add(QuotedTweetIdFeature, quotedTweetId)
-          .add(QuotedUserIdFeature, quotedTweetUserId)
-          .add(SourceTweetIdFeature, retweetedTweetId)
-          .add(SourceUserIdFeature, retweetedTweetUserId)
-          .add(TweetLanguageFeature, tweetLanguage)
-          .add(TweetTextFeature, tweetText)
-          .add(VisibilityReason, found.suppressReason)
-          .build()
-
-      // If no tweet result found, return default and pre-existing features
-      case _ =>
-        DefaultFeatureMap ++ FeatureMapBuilder()
-          .add(AuthorIdFeature, existingFeatures.getOrElse(AuthorIdFeature, None))
-          .add(ExclusiveConversationAuthorIdFeature, exclusiveAuthorIdOpt)
-          .add(InReplyToTweetIdFeature, existingFeatures.getOrElse(InReplyToTweetIdFeature, None))
-          .add(IsRetweetFeature, existingFeatures.getOrElse(IsRetweetFeature, false))
-          .add(QuotedTweetIdFeature, existingFeatures.getOrElse(QuotedTweetIdFeature, None))
-          .add(QuotedUserIdFeature, existingFeatures.getOrElse(QuotedUserIdFeature, None))
-          .add(SourceTweetIdFeature, existingFeatures.getOrElse(SourceTweetIdFeature, None))
-          .add(SourceUserIdFeature, existingFeatures.getOrElse(SourceUserIdFeature, None))
-          .add(TweetLanguageFeature, existingFeatures.getOrElse(TweetLanguageFeature, None))
-          .build()
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/BUILD.bazel
deleted file mode 100644
index 59284224b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/BUILD.bazel
+++ /dev/null
@@ -1,29 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/impressed_tweets",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/filter",
-        "src/thrift/com/twitter/spam/rtf:safety-result-scala",
-        "src/thrift/com/twitter/timelines/impression:thrift-scala",
-        "src/thrift/com/twitter/tweetypie:service-scala",
-        "src/thrift/com/twitter/tweetypie:tweet-scala",
-        "stitch/stitch-core",
-        "stitch/stitch-socialgraph",
-        "stitch/stitch-tweetypie",
-        "timelinemixer/server/src/main/scala/com/twitter/timelinemixer/injection/store/persistence",
-        "timelineservice/common/src/main/scala/com/twitter/timelineservice/model",
-        "util/util-slf4j-api/src/main/scala",
-    ],
-    exports = [
-        "timelinemixer/server/src/main/scala/com/twitter/timelinemixer/injection/store/persistence",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/DropMaxCandidatesFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/DropMaxCandidatesFilter.scala
deleted file mode 100644
index 94943fc4a..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/DropMaxCandidatesFilter.scala
+++ /dev/null
@@ -1,27 +0,0 @@
-package com.twitter.home_mixer.functional_component.filter
-
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.UniversalNoun
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.configapi.FSBoundedParam
-
-case class DropMaxCandidatesFilter[Candidate <: UniversalNoun[Any]](
-  maxCandidatesParam: FSBoundedParam[Int])
-    extends Filter[PipelineQuery, Candidate] {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("DropMaxCandidates")
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[Candidate]]
-  ): Stitch[FilterResult[Candidate]] = {
-    val maxCandidates = query.params(maxCandidatesParam)
-    val (kept, removed) = candidates.map(_.candidate).splitAt(maxCandidates)
-
-    Stitch.value(FilterResult(kept, removed))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/FeedbackFatigueFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/FeedbackFatigueFilter.scala
deleted file mode 100644
index 582583e7f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/FeedbackFatigueFilter.scala
+++ /dev/null
@@ -1,89 +0,0 @@
-package com.twitter.home_mixer.functional_component.filter
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.FeedbackHistoryFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.SGSValidFollowedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.SGSValidLikedByUserIdsFeature
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.common.thriftscala.FeedbackEntity
-import com.twitter.timelineservice.model.FeedbackEntry
-import com.twitter.timelineservice.{thriftscala => tls}
-
-object FeedbackFatigueFilter
-    extends Filter[PipelineQuery, TweetCandidate]
-    with Filter.Conditionally[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("FeedbackFatigue")
-
-  override def onlyIf(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Boolean =
-    query.features.exists(_.getOrElse(FeedbackHistoryFeature, Seq.empty).nonEmpty)
-
-  private val DurationForFiltering = 14.days
-
-  override def apply(
-    query: pipeline.PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[FilterResult[TweetCandidate]] = {
-    val feedbackEntriesByEngagementType =
-      query.features
-        .getOrElse(FeatureMap.empty).getOrElse(FeedbackHistoryFeature, Seq.empty)
-        .filter { entry =>
-          val timeSinceFeedback = query.queryTime.minus(entry.timestamp)
-          timeSinceFeedback < DurationForFiltering &&
-          entry.feedbackType == tls.FeedbackType.SeeFewer
-        }.groupBy(_.engagementType)
-
-    val authorsToFilter =
-      getUserIds(
-        feedbackEntriesByEngagementType.getOrElse(tls.FeedbackEngagementType.Tweet, Seq.empty))
-    val likersToFilter =
-      getUserIds(
-        feedbackEntriesByEngagementType.getOrElse(tls.FeedbackEngagementType.Like, Seq.empty))
-    val followersToFilter =
-      getUserIds(
-        feedbackEntriesByEngagementType.getOrElse(tls.FeedbackEngagementType.Follow, Seq.empty))
-    val retweetersToFilter =
-      getUserIds(
-        feedbackEntriesByEngagementType.getOrElse(tls.FeedbackEngagementType.Retweet, Seq.empty))
-
-    val (removed, kept) = candidates.partition { candidate =>
-      val originalAuthorId = CandidatesUtil.getOriginalAuthorId(candidate.features)
-      val authorId = candidate.features.getOrElse(AuthorIdFeature, None)
-
-      val likers = candidate.features.getOrElse(SGSValidLikedByUserIdsFeature, Seq.empty)
-      val eligibleLikers = likers.filterNot(likersToFilter.contains)
-
-      val followers = candidate.features.getOrElse(SGSValidFollowedByUserIdsFeature, Seq.empty)
-      val eligibleFollowers = followers.filterNot(followersToFilter.contains)
-
-      originalAuthorId.exists(authorsToFilter.contains) ||
-      (likers.nonEmpty && eligibleLikers.isEmpty) ||
-      (followers.nonEmpty && eligibleFollowers.isEmpty && likers.isEmpty) ||
-      (candidate.features.getOrElse(IsRetweetFeature, false) &&
-      authorId.exists(retweetersToFilter.contains))
-    }
-
-    Stitch.value(FilterResult(kept = kept.map(_.candidate), removed = removed.map(_.candidate)))
-  }
-
-  private def getUserIds(
-    feedbackEntries: Seq[FeedbackEntry],
-  ): Set[Long] =
-    feedbackEntries.collect {
-      case FeedbackEntry(_, _, FeedbackEntity.UserId(userId), _, _) => userId
-    }.toSet
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/InvalidConversationModuleFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/InvalidConversationModuleFilter.scala
deleted file mode 100644
index 0d3f1ca1f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/InvalidConversationModuleFilter.scala
+++ /dev/null
@@ -1,50 +0,0 @@
-package com.twitter.home_mixer.functional_component.filter
-
-import com.twitter.home_mixer.model.HomeFeatures.ConversationModuleFocalTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-/**
- * Exclude conversation modules where Tweets have been dropped by other filters
- *
- * Largest conversation modules have 3 Tweets, so if all 3 are present, module is valid.
- * For 2 Tweet modules, check if the head is the root (not a reply) and the last item
- * is actually replying to the root directly with no missing intermediate tweets
- */
-object InvalidConversationModuleFilter extends Filter[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("InvalidConversationModule")
-
-  val ValidThreeTweetModuleSize = 3
-  val ValidTwoTweetModuleSize = 2
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[FilterResult[TweetCandidate]] = {
-    val allowedTweetIds = candidates
-      .groupBy(_.features.getOrElse(ConversationModuleFocalTweetIdFeature, None))
-      .map { case (id, candidates) => (id, candidates.sortBy(_.candidate.id)) }
-      .filter {
-        case (Some(_), conversation) if conversation.size == ValidThreeTweetModuleSize => true
-        case (Some(focalId), conversation) if conversation.size == ValidTwoTweetModuleSize =>
-          conversation.head.features.getOrElse(InReplyToTweetIdFeature, None).isEmpty &&
-            conversation.last.candidate.id == focalId &&
-            conversation.last.features
-              .getOrElse(InReplyToTweetIdFeature, None)
-              .contains(conversation.head.candidate.id)
-        case (None, _) => true
-        case _ => false
-      }.values.flatten.toSeq.map(_.candidate.id).toSet
-
-    val (kept, removed) =
-      candidates.map(_.candidate).partition(candidate => allowedTweetIds.contains(candidate.id))
-    Stitch.value(FilterResult(kept = kept, removed = removed))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/InvalidSubscriptionTweetFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/InvalidSubscriptionTweetFilter.scala
deleted file mode 100644
index 285eec49f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/InvalidSubscriptionTweetFilter.scala
+++ /dev/null
@@ -1,70 +0,0 @@
-package com.twitter.home_mixer.functional_component.filter
-
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.finagle.tracing.Trace
-import com.twitter.home_mixer.model.HomeFeatures.ExclusiveConversationAuthorIdFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.socialgraph.{thriftscala => sg}
-import com.twitter.stitch.Stitch
-import com.twitter.stitch.socialgraph.SocialGraph
-import com.twitter.util.logging.Logging
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Exclude invalid subscription tweets - cases where the viewer is not subscribed to the author
- *
- * If SGS hydration fails, `SGSInvalidSubscriptionTweetFeature` will be set to None for
- * subscription tweets, so we explicitly filter those tweets out.
- */
-@Singleton
-case class InvalidSubscriptionTweetFilter @Inject() (
-  socialGraphClient: SocialGraph,
-  statsReceiver: StatsReceiver)
-    extends Filter[PipelineQuery, TweetCandidate]
-    with Logging {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("InvalidSubscriptionTweet")
-
-  private val scopedStatsReceiver = statsReceiver.scope(identifier.toString)
-  private val validCounter = scopedStatsReceiver.counter("validExclusiveTweet")
-  private val invalidCounter = scopedStatsReceiver.counter("invalidExclusiveTweet")
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[FilterResult[TweetCandidate]] = Stitch
-    .traverse(candidates) { candidate =>
-      val exclusiveAuthorId =
-        candidate.features.getOrElse(ExclusiveConversationAuthorIdFeature, None)
-
-      if (exclusiveAuthorId.isDefined) {
-        val request = sg.ExistsRequest(
-          source = query.getRequiredUserId,
-          target = exclusiveAuthorId.get,
-          relationships =
-            Seq(sg.Relationship(sg.RelationshipType.TierOneSuperFollowing, hasRelationship = true)),
-        )
-        socialGraphClient.exists(request).map(_.exists).map { valid =>
-          if (!valid) invalidCounter.incr() else validCounter.incr()
-          valid
-        }
-      } else Stitch.value(true)
-    }.map { validResults =>
-      val (kept, removed) = candidates
-        .map(_.candidate)
-        .zip(validResults)
-        .partition { case (candidate, valid) => valid }
-
-      val keptCandidates = kept.map { case (candidate, _) => candidate }
-      val removedCandidates = removed.map { case (candidate, _) => candidate }
-
-      FilterResult(kept = keptCandidates, removed = removedCandidates)
-    }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/PredicateGatedFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/PredicateGatedFilter.scala
deleted file mode 100644
index b263a87fc..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/PredicateGatedFilter.scala
+++ /dev/null
@@ -1,47 +0,0 @@
-package com.twitter.home_mixer.functional_component.filter
-
-import com.twitter.product_mixer.core.functional_component.common.alert.Alert
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.Conditionally
-import com.twitter.product_mixer.core.model.common.UniversalNoun
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-trait FilterPredicate[-Query <: PipelineQuery] {
-  def apply(query: Query): Boolean
-}
-
-/**
- * A [[Filter]] with [[Conditionally]] based on a [[FilterPredicate]]
- *
- * @param predicate the predicate to turn this filter on and off
- * @param filter the underlying filter to run when `predicate` is true
- * @tparam Query The domain model for the query or request
- * @tparam Candidate The type of the candidates
- */
-case class PredicateGatedFilter[-Query <: PipelineQuery, Candidate <: UniversalNoun[Any]](
-  predicate: FilterPredicate[Query],
-  filter: Filter[Query, Candidate])
-    extends Filter[Query, Candidate]
-    with Filter.Conditionally[Query, Candidate] {
-
-  override val identifier: FilterIdentifier = FilterIdentifier(
-    PredicateGatedFilter.IdentifierPrefix + filter.identifier.name)
-
-  override val alerts: Seq[Alert] = filter.alerts
-
-  override def onlyIf(query: Query, candidates: Seq[CandidateWithFeatures[Candidate]]): Boolean =
-    Conditionally.and(Filter.Input(query, candidates), filter, predicate(query))
-
-  override def apply(
-    query: Query,
-    candidates: Seq[CandidateWithFeatures[Candidate]]
-  ): Stitch[FilterResult[Candidate]] = filter.apply(query, candidates)
-}
-
-object PredicateGatedFilter {
-  val IdentifierPrefix = "PredicateGated"
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/PreviouslySeenTweetsFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/PreviouslySeenTweetsFilter.scala
deleted file mode 100644
index 047233a41..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/PreviouslySeenTweetsFilter.scala
+++ /dev/null
@@ -1,37 +0,0 @@
-package com.twitter.home_mixer.functional_component.filter
-
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.home_mixer.util.TweetImpressionsHelper
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-/**
- * Filter out users' previously seen tweets from 2 sources:
- * 1. Heron Topology Impression Store in Memcache;
- * 2. Manhattan Impression Store;
- */
-object PreviouslySeenTweetsFilter extends Filter[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("PreviouslySeenTweets")
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[FilterResult[TweetCandidate]] = {
-
-    val seenTweetIds =
-      query.features.map(TweetImpressionsHelper.tweetImpressions).getOrElse(Set.empty)
-
-    val (removed, kept) = candidates.partition { candidate =>
-      val tweetIdAndSourceId = CandidatesUtil.getTweetIdAndSourceId(candidate)
-      tweetIdAndSourceId.exists(seenTweetIds.contains)
-    }
-
-    Stitch.value(FilterResult(kept = kept.map(_.candidate), removed = removed.map(_.candidate)))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/PreviouslyServedAncestorsFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/PreviouslyServedAncestorsFilter.scala
deleted file mode 100644
index 42b0ad51a..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/PreviouslyServedAncestorsFilter.scala
+++ /dev/null
@@ -1,44 +0,0 @@
-package com.twitter.home_mixer.functional_component.filter
-
-import com.twitter.common_internal.analytics.twitter_client_user_agent_parser.UserAgent
-import com.twitter.home_mixer.model.HomeFeatures.IsAncestorCandidateFeature
-import com.twitter.home_mixer.model.HomeFeatures.PersistenceEntriesFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelinemixer.injection.store.persistence.TimelinePersistenceUtils
-import com.twitter.timelines.util.client_info.ClientPlatform
-
-object PreviouslyServedAncestorsFilter
-    extends Filter[PipelineQuery, TweetCandidate]
-    with TimelinePersistenceUtils {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("PreviouslyServedAncestors")
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[FilterResult[TweetCandidate]] = {
-    val clientPlatform = ClientPlatform.fromQueryOptions(
-      clientAppId = query.clientContext.appId,
-      userAgent = query.clientContext.userAgent.flatMap(UserAgent.fromString))
-    val entries =
-      query.features.map(_.getOrElse(PersistenceEntriesFeature, Seq.empty)).toSeq.flatten
-    val tweetIds = applicableResponses(clientPlatform, entries)
-      .flatMap(_.entries.flatMap(_.tweetIds(includeSourceTweets = true))).toSet
-    val ancestorIds =
-      candidates
-        .filter(_.features.getOrElse(IsAncestorCandidateFeature, false)).map(_.candidate.id).toSet
-
-    val (removed, kept) =
-      candidates
-        .map(_.candidate).partition(candidate =>
-          tweetIds.contains(candidate.id) && ancestorIds.contains(candidate.id))
-
-    Stitch.value(FilterResult(kept = kept, removed = removed))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/PreviouslyServedTweetPreviewsFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/PreviouslyServedTweetPreviewsFilter.scala
deleted file mode 100644
index 0ff820479..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/PreviouslyServedTweetPreviewsFilter.scala
+++ /dev/null
@@ -1,30 +0,0 @@
-package com.twitter.home_mixer.functional_component.filter
-
-import com.twitter.home_mixer.model.HomeFeatures.ServedTweetPreviewIdsFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-object PreviouslyServedTweetPreviewsFilter extends Filter[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("PreviouslyServedTweetPreviews")
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[FilterResult[TweetCandidate]] = {
-
-    val servedTweetPreviewIds =
-      query.features.map(_.getOrElse(ServedTweetPreviewIdsFeature, Seq.empty)).toSeq.flatten.toSet
-
-    val (removed, kept) = candidates.partition { candidate =>
-      servedTweetPreviewIds.contains(candidate.candidate.id)
-    }
-
-    Stitch.value(FilterResult(kept = kept.map(_.candidate), removed = removed.map(_.candidate)))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/PreviouslyServedTweetsFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/PreviouslyServedTweetsFilter.scala
deleted file mode 100644
index 56b6a1c0b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/PreviouslyServedTweetsFilter.scala
+++ /dev/null
@@ -1,42 +0,0 @@
-package com.twitter.home_mixer.functional_component.filter
-
-import com.twitter.home_mixer.model.HomeFeatures.GetOlderFeature
-import com.twitter.home_mixer.model.HomeFeatures.ServedTweetIdsFeature
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-object PreviouslyServedTweetsFilter
-    extends Filter[PipelineQuery, TweetCandidate]
-    with Filter.Conditionally[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("PreviouslyServedTweets")
-
-  override def onlyIf(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Boolean = {
-    query.features.exists(_.getOrElse(GetOlderFeature, false))
-  }
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[FilterResult[TweetCandidate]] = {
-
-    val servedTweetIds =
-      query.features.map(_.getOrElse(ServedTweetIdsFeature, Seq.empty)).toSeq.flatten.toSet
-
-    val (removed, kept) = candidates.partition { candidate =>
-      val tweetIdAndSourceId = CandidatesUtil.getTweetIdAndSourceId(candidate)
-      tweetIdAndSourceId.exists(servedTweetIds.contains)
-    }
-
-    Stitch.value(FilterResult(kept = kept.map(_.candidate), removed = removed.map(_.candidate)))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/RejectTweetFromViewerFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/RejectTweetFromViewerFilter.scala
deleted file mode 100644
index c25d9ec2b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/RejectTweetFromViewerFilter.scala
+++ /dev/null
@@ -1,24 +0,0 @@
-package com.twitter.home_mixer.functional_component.filter
-
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-object RejectTweetFromViewerFilter extends Filter[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("RejectTweetFromViewer")
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[FilterResult[TweetCandidate]] = {
-    val (removed, kept) = candidates.partition(candidate =>
-      CandidatesUtil.isAuthoredByViewer(query, candidate.features))
-    Stitch.value(FilterResult(kept = kept.map(_.candidate), removed = removed.map(_.candidate)))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/ReplyFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/ReplyFilter.scala
deleted file mode 100644
index a1b99df66..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/ReplyFilter.scala
+++ /dev/null
@@ -1,32 +0,0 @@
-package com.twitter.home_mixer.functional_component.filter
-
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-object ReplyFilter extends Filter[PipelineQuery, TweetCandidate] {
-  override val identifier: FilterIdentifier = FilterIdentifier("Reply")
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[FilterResult[TweetCandidate]] = {
-
-    val (kept, removed) = candidates
-      .partition { candidate =>
-        candidate.features.getOrElse(InReplyToTweetIdFeature, None).isEmpty
-      }
-
-    val filterResult = FilterResult(
-      kept = kept.map(_.candidate),
-      removed = removed.map(_.candidate)
-    )
-
-    Stitch.value(filterResult)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/RetweetDeduplicationFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/RetweetDeduplicationFilter.scala
deleted file mode 100644
index 1e1f7f03a..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/RetweetDeduplicationFilter.scala
+++ /dev/null
@@ -1,45 +0,0 @@
-package com.twitter.home_mixer.functional_component.filter
-
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import scala.collection.mutable
-
-object RetweetDeduplicationFilter extends Filter[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("RetweetDeduplication")
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[FilterResult[TweetCandidate]] = {
-    // If there are 2 retweets of the same native tweet, we will choose the first one
-    // The tweets are returned in descending score order, so we will choose the higher scored tweet
-    val dedupedTweetIdsSet =
-      candidates.partition(_.features.getOrElse(IsRetweetFeature, false)) match {
-        case (retweets, nativeTweets) =>
-          val nativeTweetIds = nativeTweets.map(_.candidate.id)
-          val seenTweetIds = mutable.Set[Long]() ++ nativeTweetIds
-          val dedupedRetweets = retweets.filter { retweet =>
-            val tweetIdAndSourceId = CandidatesUtil.getTweetIdAndSourceId(retweet)
-            val retweetIsUnique = tweetIdAndSourceId.forall(!seenTweetIds.contains(_))
-            if (retweetIsUnique) {
-              seenTweetIds ++= tweetIdAndSourceId
-            }
-            retweetIsUnique
-          }
-          (nativeTweets ++ dedupedRetweets).map(_.candidate.id).toSet
-      }
-
-    val (kept, removed) =
-      candidates
-        .map(_.candidate).partition(candidate => dedupedTweetIdsSet.contains(candidate.id))
-    Stitch.value(FilterResult(kept = kept, removed = removed))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/RetweetFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/RetweetFilter.scala
deleted file mode 100644
index 0ffc4b00c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter/RetweetFilter.scala
+++ /dev/null
@@ -1,32 +0,0 @@
-package com.twitter.home_mixer.functional_component.filter
-
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-object RetweetFilter extends Filter[PipelineQuery, TweetCandidate] {
-  override val identifier: FilterIdentifier = FilterIdentifier("Retweet")
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[FilterResult[TweetCandidate]] = {
-
-    val (kept, removed) = candidates
-      .partition { candidate =>
-        !candidate.features.getOrElse(IsRetweetFeature, false)
-      }
-
-    val filterResult = FilterResult(
-      kept = kept.map(_.candidate),
-      removed = removed.map(_.candidate)
-    )
-
-    Stitch.value(filterResult)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/BUILD.bazel
deleted file mode 100644
index 6be06dee9..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/BUILD.bazel
+++ /dev/null
@@ -1,20 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "configapi/configapi-core/src/main/scala/com/twitter/timelines/configapi",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/common",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/gate",
-        "src/thrift/com/twitter/gizmoduck:thrift-scala",
-        "stitch/stitch-socialgraph",
-        "timelinemixer/server/src/main/scala/com/twitter/timelinemixer/injection/store/persistence",
-        "timelineservice/common/src/main/scala/com/twitter/timelineservice/model",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/DismissFatigueGate.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/DismissFatigueGate.scala
deleted file mode 100644
index b35a6cda5..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/DismissFatigueGate.scala
+++ /dev/null
@@ -1,48 +0,0 @@
-package com.twitter.home_mixer.functional_component.gate
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.model.common.identifier.GateIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelinemixer.clients.manhattan.DismissInfo
-import com.twitter.timelineservice.suggests.thriftscala.SuggestType
-import com.twitter.util.Duration
-
-object DismissFatigueGate {
-  // how long a dismiss action from user needs to be respected
-  val DefaultBaseDismissDuration = 7.days
-  val MaximumDismissalCountMultiplier = 4
-}
-
-case class DismissFatigueGate(
-  suggestType: SuggestType,
-  dismissInfoFeature: Feature[PipelineQuery, Map[SuggestType, Option[DismissInfo]]],
-  baseDismissDuration: Duration = DismissFatigueGate.DefaultBaseDismissDuration,
-) extends Gate[PipelineQuery] {
-
-  override val identifier: GateIdentifier = GateIdentifier("DismissFatigue")
-
-  override def shouldContinue(query: PipelineQuery): Stitch[Boolean] = {
-    val dismissInfoMap = query.features.map(
-      _.getOrElse(dismissInfoFeature, Map.empty[SuggestType, Option[DismissInfo]]))
-
-    val isVisible = dismissInfoMap
-      .flatMap(_.get(suggestType))
-      .flatMap(_.map { info =>
-        val currentDismissalDuration = query.queryTime.since(info.lastDismissed)
-        val targetDismissalDuration = dismissDurationForCount(info.count, baseDismissDuration)
-
-        currentDismissalDuration > targetDismissalDuration
-      }).getOrElse(true)
-    Stitch.value(isVisible)
-  }
-
-  private def dismissDurationForCount(
-    dismissCount: Int,
-    dismissDuration: Duration
-  ): Duration =
-    // limit to maximum dismissal duration
-    dismissDuration * Math.min(dismissCount, DismissFatigueGate.MaximumDismissalCountMultiplier)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/ExcludeSoftUserGate.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/ExcludeSoftUserGate.scala
deleted file mode 100644
index a86159036..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/ExcludeSoftUserGate.scala
+++ /dev/null
@@ -1,23 +0,0 @@
-package com.twitter.home_mixer.functional_component.gate
-
-import com.twitter.gizmoduck.{thriftscala => t}
-import com.twitter.home_mixer.model.HomeFeatures.UserTypeFeature
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.model.common.identifier.GateIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-/**
- * A Soft User is a user who is in the gradual onboarding state. This gate can be
- * used to turn off certain functionality like ads for these users.
- */
-object ExcludeSoftUserGate extends Gate[PipelineQuery] {
-
-  override val identifier: GateIdentifier = GateIdentifier("ExcludeSoftUser")
-
-  override def shouldContinue(query: PipelineQuery): Stitch[Boolean] = {
-    val softUser = query.features
-      .exists(_.getOrElse(UserTypeFeature, None).exists(_ == t.UserType.Soft))
-    Stitch.value(!softUser)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/RequestContextGate.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/RequestContextGate.scala
deleted file mode 100644
index 0ffe6793e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/RequestContextGate.scala
+++ /dev/null
@@ -1,22 +0,0 @@
-package com.twitter.home_mixer.functional_component.gate
-
-import com.twitter.home_mixer.model.request.DeviceContext.RequestContext
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.model.common.identifier.GateIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-/**
- * Gate that fetches the request context from the device context and
- * continues if the request context matches *any* of the specified ones.
- */
-case class RequestContextGate(requestContexts: Seq[RequestContext.Value])
-    extends Gate[PipelineQuery with HasDeviceContext] {
-
-  override val identifier: GateIdentifier = GateIdentifier("RequestContext")
-
-  override def shouldContinue(query: PipelineQuery with HasDeviceContext): Stitch[Boolean] =
-    Stitch.value(
-      requestContexts.exists(query.deviceContext.flatMap(_.requestContextValue).contains))
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/RequestContextNotGate.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/RequestContextNotGate.scala
deleted file mode 100644
index c52f05f75..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/RequestContextNotGate.scala
+++ /dev/null
@@ -1,24 +0,0 @@
-package com.twitter.home_mixer.functional_component.gate
-
-import com.twitter.home_mixer.model.request.DeviceContext.RequestContext
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.model.common.identifier.GateIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-/**
- * Gate that fetches the request context from the device context and
- * continues if the request context does not match any of the specified ones.
- *
- * If no input request context is specified, the gate continues
- */
-case class RequestContextNotGate(requestContexts: Seq[RequestContext.Value])
-    extends Gate[PipelineQuery with HasDeviceContext] {
-
-  override val identifier: GateIdentifier = GateIdentifier("RequestContextNot")
-
-  override def shouldContinue(query: PipelineQuery with HasDeviceContext): Stitch[Boolean] =
-    Stitch.value(
-      !requestContexts.exists(query.deviceContext.flatMap(_.requestContextValue).contains))
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/SupportedLanguagesGate.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/SupportedLanguagesGate.scala
deleted file mode 100644
index 53b681236..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/SupportedLanguagesGate.scala
+++ /dev/null
@@ -1,68 +0,0 @@
-package com.twitter.home_mixer.functional_component.gate
-
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.model.common.identifier.GateIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-object SupportedLanguagesGate extends Gate[PipelineQuery] {
-
-  override val identifier: GateIdentifier = GateIdentifier("SupportedLanguages")
-
-  // Production languages which have high translation coverage for strings used in Home Timeline.
-  private val supportedLanguages: Set[String] = Set(
-    "ar", // Arabic
-    "ar-x-fm", // Arabic (Female)
-    "bg", // Bulgarian
-    "bn", // Bengali
-    "ca", // Catalan
-    "cs", // Czech
-    "da", // Danish
-    "de", // German
-    "el", // Greek
-    "en", // English
-    "en-gb", // British English
-    "en-ss", // English Screen shot
-    "en-xx", // English Pseudo
-    "es", // Spanish
-    "eu", // Basque
-    "fa", // Farsi (Persian)
-    "fi", // Finnish
-    "fil", // Filipino
-    "fr", // French
-    "ga", // Irish
-    "gl", // Galician
-    "gu", // Gujarati
-    "he", // Hebrew
-    "hi", // Hindi
-    "hr", // Croatian
-    "hu", // Hungarian
-    "id", // Indonesian
-    "it", // Italian
-    "ja", // Japanese
-    "kn", // Kannada
-    "ko", // Korean
-    "mr", // Marathi
-    "msa", // Malay
-    "nl", // Dutch
-    "no", // Norwegian
-    "pl", // Polish
-    "pt", // Portuguese
-    "ro", // Romanian
-    "ru", // Russian
-    "sk", // Slovak
-    "sr", // Serbian
-    "sv", // Swedish
-    "ta", // Tamil
-    "th", // Thai
-    "tr", // Turkish
-    "uk", // Ukrainian
-    "ur", // Urdu
-    "vi", // Vietnamese
-    "zh-cn", // Simplified Chinese
-    "zh-tw" // Traditional Chinese
-  )
-
-  override def shouldContinue(query: PipelineQuery): Stitch[Boolean] =
-    Stitch.value(query.getLanguageCode.forall(supportedLanguages.contains))
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/TimelinesPersistenceStoreLastInjectionGate.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/TimelinesPersistenceStoreLastInjectionGate.scala
deleted file mode 100644
index 31fff2306..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate/TimelinesPersistenceStoreLastInjectionGate.scala
+++ /dev/null
@@ -1,51 +0,0 @@
-package com.twitter.home_mixer.functional_component.gate
-
-import com.twitter.common_internal.analytics.twitter_client_user_agent_parser.UserAgent
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.model.common.identifier.GateIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelinemixer.clients.persistence.TimelineResponseV3
-import com.twitter.timelinemixer.injection.store.persistence.TimelinePersistenceUtils
-import com.twitter.timelines.configapi.Param
-import com.twitter.timelines.util.client_info.ClientPlatform
-import com.twitter.timelineservice.model.rich.EntityIdType
-import com.twitter.util.Duration
-import com.twitter.util.Time
-
-/**
- * Gate used to reduce the frequency of injections. Note that the actual interval between injections may be
- * less than the specified minInjectionIntervalParam if data is unavailable or missing. For example, being deleted by
- * the persistence store via a TTL or similar mechanism.
- *
- * @param minInjectionIntervalParam the desired minimum interval between injections
- * @param persistenceEntriesFeature the feature for retrieving persisted timeline responses
- */
-case class TimelinesPersistenceStoreLastInjectionGate(
-  minInjectionIntervalParam: Param[Duration],
-  persistenceEntriesFeature: Feature[PipelineQuery, Seq[TimelineResponseV3]],
-  entityIdType: EntityIdType.Value)
-    extends Gate[PipelineQuery]
-    with TimelinePersistenceUtils {
-
-  override val identifier: GateIdentifier = GateIdentifier("TimelinesPersistenceStoreLastInjection")
-
-  override def shouldContinue(query: PipelineQuery): Stitch[Boolean] =
-    Stitch(
-      query.queryTime.since(getLastInjectionTime(query)) > query.params(minInjectionIntervalParam))
-
-  private def getLastInjectionTime(query: PipelineQuery) = query.features
-    .flatMap { featureMap =>
-      val timelineResponses = featureMap.getOrElse(persistenceEntriesFeature, Seq.empty)
-      val clientPlatform = ClientPlatform.fromQueryOptions(
-        clientAppId = query.clientContext.appId,
-        userAgent = query.clientContext.userAgent.flatMap(UserAgent.fromString)
-      )
-      val sortedResponses = responseByClient(clientPlatform, timelineResponses)
-      val latestResponseWithEntityIdTypeEntry =
-        sortedResponses.find(_.entries.exists(_.entityIdType == entityIdType))
-
-      latestResponseWithEntityIdTypeEntry.map(_.servedTime)
-    }.getOrElse(Time.Bottom)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/query_transformer/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/query_transformer/BUILD.bazel
deleted file mode 100644
index 67763235b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/query_transformer/BUILD.bazel
+++ /dev/null
@@ -1,13 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "common-internal/analytics/twitter-client-user-agent-parser/src/main/scala",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/transformer",
-        "timelinemixer/server/src/main/scala/com/twitter/timelinemixer/injection/store/persistence",
-        "timelineservice/common:model",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/query_transformer/EditedTweetsCandidatePipelineQueryTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/query_transformer/EditedTweetsCandidatePipelineQueryTransformer.scala
deleted file mode 100644
index 8753f2f28..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/query_transformer/EditedTweetsCandidatePipelineQueryTransformer.scala
+++ /dev/null
@@ -1,85 +0,0 @@
-package com.twitter.home_mixer.functional_component.query_transformer
-
-import com.twitter.common_internal.analytics.twitter_client_user_agent_parser.UserAgent
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.model.HomeFeatures.PersistenceEntriesFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelinemixer.clients.persistence.EntryWithItemIds
-import com.twitter.timelines.persistence.thriftscala.RequestType
-import com.twitter.timelines.util.client_info.ClientPlatform
-import com.twitter.timelineservice.model.rich.EntityIdType
-import com.twitter.util.Time
-
-object EditedTweetsCandidatePipelineQueryTransformer
-    extends CandidatePipelineQueryTransformer[PipelineQuery, Seq[Long]] {
-
-  override val identifier: TransformerIdentifier = TransformerIdentifier("EditedTweets")
-
-  // The time window for which a tweet remains editable after creation.
-  private val EditTimeWindow = 60.minutes
-
-  override def transform(query: PipelineQuery): Seq[Long] = {
-    val applicableCandidates = getApplicableCandidates(query)
-
-    if (applicableCandidates.nonEmpty) {
-      // Include the response corresponding with the Previous Timeline Load (PTL).
-      // Any tweets in it could have become stale since being served.
-      val previousTimelineLoadTime = applicableCandidates.head.servedTime
-
-      // The time window for editing a tweet is 60 minutes,
-      // so we ignore responses older than (PTL Time - 60 mins).
-      val inWindowCandidates: Seq[PersistenceStoreEntry] = applicableCandidates
-        .takeWhile(_.servedTime.until(previousTimelineLoadTime) < EditTimeWindow)
-
-      // Exclude the tweet IDs for which ReplaceEntry instructions have already been sent.
-      val (tweetsAlreadyReplaced, tweetsToCheck) = inWindowCandidates
-        .partition(_.entryWithItemIds.itemIds.exists(_.head.entryIdToReplace.nonEmpty))
-
-      val tweetIdFromEntry: PartialFunction[PersistenceStoreEntry, Long] = {
-        case entry if entry.tweetId.nonEmpty => entry.tweetId.get
-      }
-
-      val tweetIdsAlreadyReplaced: Set[Long] = tweetsAlreadyReplaced.collect(tweetIdFromEntry).toSet
-      val tweetIdsToCheck: Seq[Long] = tweetsToCheck.collect(tweetIdFromEntry)
-
-      tweetIdsToCheck.filterNot(tweetIdsAlreadyReplaced.contains).distinct
-    } else Seq.empty
-  }
-
-  // The candidates here come from the Timelines Persistence Store, via a query feature
-  private def getApplicableCandidates(query: PipelineQuery): Seq[PersistenceStoreEntry] = {
-    val userAgent = UserAgent.fromString(query.clientContext.userAgent.getOrElse(""))
-    val clientPlatform = ClientPlatform.fromQueryOptions(query.clientContext.appId, userAgent)
-
-    val sortedResponses = query.features
-      .getOrElse(FeatureMap.empty)
-      .getOrElse(PersistenceEntriesFeature, Seq.empty)
-      .filter(_.clientPlatform == clientPlatform)
-      .sortBy(-_.servedTime.inMilliseconds)
-
-    val recentResponses = sortedResponses.indexWhere(_.requestType == RequestType.Initial) match {
-      case -1 => sortedResponses
-      case lastGetInitialIndex => sortedResponses.take(lastGetInitialIndex + 1)
-    }
-
-    recentResponses.flatMap { r =>
-      r.entries.collect {
-        case entry if entry.entityIdType == EntityIdType.Tweet =>
-          PersistenceStoreEntry(entry, r.servedTime, r.clientPlatform, r.requestType)
-      }
-    }.distinct
-  }
-}
-
-case class PersistenceStoreEntry(
-  entryWithItemIds: EntryWithItemIds,
-  servedTime: Time,
-  clientPlatform: ClientPlatform,
-  requestType: RequestType) {
-
-  // Timelines Persistence Store currently includes 1 tweet ID per entryWithItemIds for tweets
-  val tweetId: Option[Long] = entryWithItemIds.itemIds.flatMap(_.head.tweetId)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/scorer/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/scorer/BUILD.bazel
deleted file mode 100644
index 99605204c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/scorer/BUILD.bazel
+++ /dev/null
@@ -1,16 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-        "src/thrift/com/twitter/timelines/common:thrift-scala",
-        "src/thrift/com/twitter/timelineservice/server/internal:thrift-scala",
-        "timelineservice/common:model",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/scorer/FeedbackFatigueScorer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/scorer/FeedbackFatigueScorer.scala
deleted file mode 100644
index ceb71139e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/scorer/FeedbackFatigueScorer.scala
+++ /dev/null
@@ -1,144 +0,0 @@
-package com.twitter.home_mixer.functional_component.scorer
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.FeedbackHistoryFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.SGSValidFollowedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.SGSValidLikedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.ScoreFeature
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.scorer.Scorer
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.Conditionally
-import com.twitter.product_mixer.core.model.common.identifier.ScorerIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.common.{thriftscala => tl}
-import com.twitter.timelineservice.model.FeedbackEntry
-import com.twitter.timelineservice.{thriftscala => tls}
-import com.twitter.util.Time
-import scala.collection.mutable
-
-object FeedbackFatigueScorer
-    extends Scorer[PipelineQuery, TweetCandidate]
-    with Conditionally[PipelineQuery] {
-
-  override val identifier: ScorerIdentifier = ScorerIdentifier("FeedbackFatigue")
-
-  override def features: Set[Feature[_, _]] = Set(ScoreFeature)
-
-  override def onlyIf(query: PipelineQuery): Boolean =
-    query.features.exists(_.getOrElse(FeedbackHistoryFeature, Seq.empty).nonEmpty)
-
-  val DurationForFiltering = 14.days
-  val DurationForDiscounting = 140.days
-  private val ScoreMultiplierLowerBound = 0.2
-  private val ScoreMultiplierUpperBound = 1.0
-  private val ScoreMultiplierIncrementsCount = 4
-  private val ScoreMultiplierIncrement =
-    (ScoreMultiplierUpperBound - ScoreMultiplierLowerBound) / ScoreMultiplierIncrementsCount
-  private val ScoreMultiplierIncrementDurationInDays =
-    DurationForDiscounting.inDays / ScoreMultiplierIncrementsCount.toDouble
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = {
-    val feedbackEntriesByEngagementType =
-      query.features
-        .getOrElse(FeatureMap.empty).getOrElse(FeedbackHistoryFeature, Seq.empty)
-        .filter { entry =>
-          val timeSinceFeedback = query.queryTime.minus(entry.timestamp)
-          timeSinceFeedback < DurationForFiltering + DurationForDiscounting &&
-          entry.feedbackType == tls.FeedbackType.SeeFewer
-        }.groupBy(_.engagementType)
-
-    val authorsToDiscount =
-      getUserDiscounts(
-        query.queryTime,
-        feedbackEntriesByEngagementType.getOrElse(tls.FeedbackEngagementType.Tweet, Seq.empty))
-    val likersToDiscount =
-      getUserDiscounts(
-        query.queryTime,
-        feedbackEntriesByEngagementType.getOrElse(tls.FeedbackEngagementType.Like, Seq.empty))
-    val followersToDiscount =
-      getUserDiscounts(
-        query.queryTime,
-        feedbackEntriesByEngagementType.getOrElse(tls.FeedbackEngagementType.Follow, Seq.empty))
-    val retweetersToDiscount =
-      getUserDiscounts(
-        query.queryTime,
-        feedbackEntriesByEngagementType.getOrElse(tls.FeedbackEngagementType.Retweet, Seq.empty))
-
-    val featureMaps = candidates.map { candidate =>
-      val multiplier = getScoreMultiplier(
-        candidate,
-        authorsToDiscount,
-        likersToDiscount,
-        followersToDiscount,
-        retweetersToDiscount
-      )
-      val score = candidate.features.getOrElse(ScoreFeature, None)
-      FeatureMapBuilder().add(ScoreFeature, score.map(_ * multiplier)).build()
-    }
-
-    Stitch.value(featureMaps)
-  }
-
-  def getScoreMultiplier(
-    candidate: CandidateWithFeatures[TweetCandidate],
-    authorsToDiscount: Map[Long, Double],
-    likersToDiscount: Map[Long, Double],
-    followersToDiscount: Map[Long, Double],
-    retweetersToDiscount: Map[Long, Double],
-  ): Double = {
-    val originalAuthorId =
-      CandidatesUtil.getOriginalAuthorId(candidate.features).getOrElse(0L)
-    val originalAuthorMultiplier = authorsToDiscount.getOrElse(originalAuthorId, 1.0)
-
-    val likers = candidate.features.getOrElse(SGSValidLikedByUserIdsFeature, Seq.empty)
-    val likerMultipliers = likers.flatMap(likersToDiscount.get)
-    val likerMultiplier =
-      if (likerMultipliers.nonEmpty && likers.size == likerMultipliers.size)
-        likerMultipliers.max
-      else 1.0
-
-    val followers = candidate.features.getOrElse(SGSValidFollowedByUserIdsFeature, Seq.empty)
-    val followerMultipliers = followers.flatMap(followersToDiscount.get)
-    val followerMultiplier =
-      if (followerMultipliers.nonEmpty && followers.size == followerMultipliers.size &&
-        likers.isEmpty)
-        followerMultipliers.max
-      else 1.0
-
-    val authorId = candidate.features.getOrElse(AuthorIdFeature, None).getOrElse(0L)
-    val retweeterMultiplier =
-      if (candidate.features.getOrElse(IsRetweetFeature, false))
-        retweetersToDiscount.getOrElse(authorId, 1.0)
-      else 1.0
-
-    originalAuthorMultiplier * likerMultiplier * followerMultiplier * retweeterMultiplier
-  }
-
-  def getUserDiscounts(
-    queryTime: Time,
-    feedbackEntries: Seq[FeedbackEntry],
-  ): Map[Long, Double] = {
-    val userDiscounts = mutable.Map[Long, Double]()
-    feedbackEntries
-      .collect {
-        case FeedbackEntry(_, _, tl.FeedbackEntity.UserId(userId), timestamp, _) =>
-          val timeSinceFeedback = queryTime.minus(timestamp)
-          val timeSinceDiscounting = timeSinceFeedback - DurationForFiltering
-          val multiplier = ((timeSinceDiscounting.inDays / ScoreMultiplierIncrementDurationInDays)
-            * ScoreMultiplierIncrement + ScoreMultiplierLowerBound)
-          userDiscounts.update(userId, multiplier)
-      }
-    userDiscounts.toMap
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/scorer/OONTweetScalingScorer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/scorer/OONTweetScalingScorer.scala
deleted file mode 100644
index 4b1cec4a5..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/scorer/OONTweetScalingScorer.scala
+++ /dev/null
@@ -1,48 +0,0 @@
-package com.twitter.home_mixer.functional_component.scorer
-
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.ScoreFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.scorer.Scorer
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.ScorerIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-/**
- * Scales scores of each out-of-network tweet by the specified scale factor
- */
-object OONTweetScalingScorer extends Scorer[PipelineQuery, TweetCandidate] {
-
-  override val identifier: ScorerIdentifier = ScorerIdentifier("OONTweetScaling")
-
-  override val features: Set[Feature[_, _]] = Set(ScoreFeature)
-
-  private val ScaleFactor = 0.75
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = {
-    Stitch.value {
-      candidates.map { candidate =>
-        val score = candidate.features.getOrElse(ScoreFeature, None)
-        val updatedScore = if (selector(candidate)) score.map(_ * ScaleFactor) else score
-        FeatureMapBuilder().add(ScoreFeature, updatedScore).build()
-      }
-    }
-  }
-
-  /**
-   * We should only be applying this multiplier to Out-Of-Network tweets.
-   * In-Network Retweets of Out-Of-Network tweets should not have this multiplier applied
-   */
-  private def selector(candidate: CandidateWithFeatures[TweetCandidate]): Boolean = {
-    !candidate.features.getOrElse(InNetworkFeature, false) &&
-    !candidate.features.getOrElse(IsRetweetFeature, false)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector/BUILD.bazel
deleted file mode 100644
index 3689de6ea..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector/BUILD.bazel
+++ /dev/null
@@ -1,25 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/presentation/urt",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/decorator/urt/builder",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/selector",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/common/identifier",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/common/presentation",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/response/urt/item",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-        "src/scala/com/twitter/suggests/controller_data",
-        "stringcenter/client",
-        "stringcenter/client/src/main/java",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector/DebunchCandidates.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector/DebunchCandidates.scala
deleted file mode 100644
index 648174273..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector/DebunchCandidates.scala
+++ /dev/null
@@ -1,83 +0,0 @@
-package com.twitter.home_mixer.functional_component.selector
-
-import com.twitter.home_mixer.functional_component.selector.DebunchCandidates.TrailingTweetsMinSize
-import com.twitter.home_mixer.functional_component.selector.DebunchCandidates.TrailingTweetsPortionToKeep
-import com.twitter.home_mixer.model.HomeFeatures.GetNewerFeature
-import com.twitter.product_mixer.core.functional_component.common.CandidateScope
-import com.twitter.product_mixer.core.functional_component.common.CandidateScope.PartitionedCandidates
-import com.twitter.product_mixer.core.functional_component.selector.Selector
-import com.twitter.product_mixer.core.functional_component.selector.SelectorResult
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-
-trait MustDebunch {
-  def apply(candidate: CandidateWithDetails): Boolean
-}
-
-object DebunchCandidates {
-  val TrailingTweetsMinSize = 5
-  val TrailingTweetsPortionToKeep = 0.1
-}
-
-/**
- * This selector rearranges the candidates to only allow bunches of size [[maxBunchSize]], where a
- * bunch is a consecutive sequence of candidates that meet [[mustDebunch]].
- */
-case class DebunchCandidates(
-  override val pipelineScope: CandidateScope,
-  mustDebunch: MustDebunch,
-  maxBunchSize: Int)
-    extends Selector[PipelineQuery] {
-
-  override def apply(
-    query: PipelineQuery,
-    remainingCandidates: Seq[CandidateWithDetails],
-    result: Seq[CandidateWithDetails]
-  ): SelectorResult = {
-    val PartitionedCandidates(selectedCandidates, otherCandidates) =
-      pipelineScope.partition(remainingCandidates)
-    val mutableCandidates = collection.mutable.ListBuffer(selectedCandidates: _*)
-
-    var candidatePointer = 0
-    var nonDebunchPointer = 0
-    var bunchSize = 0
-    var finalNonDebunch = -1
-
-    while (candidatePointer < mutableCandidates.size) {
-      if (mustDebunch(mutableCandidates(candidatePointer))) bunchSize += 1
-      else {
-        bunchSize = 0
-        finalNonDebunch = candidatePointer
-      }
-
-      if (bunchSize > maxBunchSize) {
-        nonDebunchPointer = Math.max(candidatePointer, nonDebunchPointer)
-        while (nonDebunchPointer < mutableCandidates.size &&
-          mustDebunch(mutableCandidates(nonDebunchPointer))) {
-          nonDebunchPointer += 1
-        }
-        if (nonDebunchPointer == mutableCandidates.size)
-          candidatePointer = mutableCandidates.size
-        else {
-          val nextNonDebunch = mutableCandidates(nonDebunchPointer)
-          mutableCandidates.remove(nonDebunchPointer)
-          mutableCandidates.insert(candidatePointer, nextNonDebunch)
-          bunchSize = 0
-          finalNonDebunch = candidatePointer
-        }
-      }
-
-      candidatePointer += 1
-    }
-
-    val debunchedCandidates = if (query.features.exists(_.getOrElse(GetNewerFeature, false))) {
-      val trailingTweetsSize = mutableCandidates.size - finalNonDebunch - 1
-      val keepCandidates = finalNonDebunch + 1 +
-        Math.max(TrailingTweetsMinSize, TrailingTweetsPortionToKeep * trailingTweetsSize).toInt
-      mutableCandidates.toList.take(keepCandidates)
-    } else mutableCandidates.toList
-
-    val updatedCandidates = otherCandidates ++ debunchedCandidates
-    SelectorResult(remainingCandidates = updatedCandidates, result = result)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector/UpdateConversationModuleId.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector/UpdateConversationModuleId.scala
deleted file mode 100644
index bbde0ed0d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector/UpdateConversationModuleId.scala
+++ /dev/null
@@ -1,40 +0,0 @@
-package com.twitter.home_mixer.functional_component.selector
-
-import com.twitter.product_mixer.component_library.model.presentation.urt.UrtModulePresentation
-import com.twitter.product_mixer.core.functional_component.common.CandidateScope
-import com.twitter.product_mixer.core.functional_component.common.CandidateScope.PartitionedCandidates
-import com.twitter.product_mixer.core.functional_component.selector.Selector
-import com.twitter.product_mixer.core.functional_component.selector.SelectorResult
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.model.common.presentation.ModuleCandidateWithDetails
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-
-/**
- * This selector updates the id of the conversation modules to be the head of the module's id.
- */
-case class UpdateConversationModuleId(
-  override val pipelineScope: CandidateScope)
-    extends Selector[PipelineQuery] {
-
-  override def apply(
-    query: PipelineQuery,
-    remainingCandidates: Seq[CandidateWithDetails],
-    result: Seq[CandidateWithDetails]
-  ): SelectorResult = {
-    val PartitionedCandidates(selectedCandidates, otherCandidates) =
-      pipelineScope.partition(remainingCandidates)
-
-    val updatedCandidates = selectedCandidates.map {
-      case module @ ModuleCandidateWithDetails(candidates, presentationOpt, _) =>
-        val updatedPresentation = presentationOpt.map {
-          case urtModule @ UrtModulePresentation(timelineModule) =>
-            urtModule.copy(timelineModule =
-              timelineModule.copy(id = candidates.head.candidateIdLong))
-        }
-        module.copy(presentation = updatedPresentation)
-      case candidate => candidate
-    }
-
-    SelectorResult(remainingCandidates = updatedCandidates ++ otherCandidates, result = result)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector/UpdateHomeClientEventDetails.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector/UpdateHomeClientEventDetails.scala
deleted file mode 100644
index c7944b506..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector/UpdateHomeClientEventDetails.scala
+++ /dev/null
@@ -1,137 +0,0 @@
-package com.twitter.home_mixer.functional_component.selector
-
-import com.twitter.home_mixer.functional_component.decorator.builder.HomeClientEventDetailsBuilder
-import com.twitter.home_mixer.model.HomeFeatures.AncestorsFeature
-import com.twitter.home_mixer.model.HomeFeatures.ConversationModule2DisplayedTweetsFeature
-import com.twitter.home_mixer.model.HomeFeatures.ConversationModuleHasGapFeature
-import com.twitter.home_mixer.model.HomeFeatures.HasRandomTweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRandomTweetAboveFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRandomTweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.PositionFeature
-import com.twitter.home_mixer.model.HomeFeatures.ServedInConversationModuleFeature
-import com.twitter.home_mixer.model.HomeFeatures.ServedSizeFeature
-import com.twitter.product_mixer.component_library.model.presentation.urt.UrtItemPresentation
-import com.twitter.product_mixer.component_library.model.presentation.urt.UrtModulePresentation
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.common.CandidateScope
-import com.twitter.product_mixer.core.functional_component.common.SpecificPipelines
-import com.twitter.product_mixer.core.functional_component.selector.Selector
-import com.twitter.product_mixer.core.functional_component.selector.SelectorResult
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.model.common.presentation.ItemCandidateWithDetails
-import com.twitter.product_mixer.core.model.common.presentation.ModuleCandidateWithDetails
-import com.twitter.product_mixer.core.model.marshalling.response.urt.item.tweet.TweetItem
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-
-/**
- * Builds serialized tweet type metrics controller data and updates Client Event Details
- * and Candidate Presentations with this info.
- *
- * Currently only updates presentation of Item Candidates. This needs to be updated
- * when modules are added.
- *
- * This is implemented as a Selector instead of a Decorator in the Candidate Pipeline
- * because we need to add controller data that looks at the final timeline as a whole
- * (e.g. served size, final candidate positions).
- *
- * @param candidatePipelines - only candidates from the specified pipeline will be updated
- */
-case class UpdateHomeClientEventDetails(candidatePipelines: Set[CandidatePipelineIdentifier])
-    extends Selector[PipelineQuery] {
-
-  override val pipelineScope: CandidateScope = SpecificPipelines(candidatePipelines)
-
-  private val detailsBuilder = HomeClientEventDetailsBuilder()
-
-  override def apply(
-    query: PipelineQuery,
-    remainingCandidates: Seq[CandidateWithDetails],
-    result: Seq[CandidateWithDetails]
-  ): SelectorResult = {
-    val selectedCandidates = result.filter(pipelineScope.contains)
-
-    val randomTweetsByPosition = result
-      .map(_.features.getOrElse(IsRandomTweetFeature, false))
-      .zipWithIndex.map(_.swap).toMap
-
-    val resultFeatures = FeatureMapBuilder()
-      .add(ServedSizeFeature, Some(selectedCandidates.size))
-      .add(HasRandomTweetFeature, randomTweetsByPosition.valuesIterator.contains(true))
-      .build()
-
-    val updatedResult = result.zipWithIndex.map {
-      case (item @ ItemCandidateWithDetails(candidate, _, _), position)
-          if pipelineScope.contains(item) =>
-        val resultCandidateFeatures = FeatureMapBuilder()
-          .add(PositionFeature, Some(position))
-          .add(IsRandomTweetAboveFeature, randomTweetsByPosition.getOrElse(position - 1, false))
-          .build()
-
-        updateItemPresentation(query, item, resultFeatures, resultCandidateFeatures)
-
-      case (module @ ModuleCandidateWithDetails(candidates, presentation, features), position)
-          if pipelineScope.contains(module) =>
-        val resultCandidateFeatures = FeatureMapBuilder()
-          .add(PositionFeature, Some(position))
-          .add(IsRandomTweetAboveFeature, randomTweetsByPosition.getOrElse(position - 1, false))
-          .add(ServedInConversationModuleFeature, true)
-          .add(ConversationModule2DisplayedTweetsFeature, module.candidates.size == 2)
-          .add(
-            ConversationModuleHasGapFeature,
-            module.candidates.last.features.getOrElse(AncestorsFeature, Seq.empty).size > 2)
-          .build()
-
-        val updatedItemCandidates =
-          candidates.map(updateItemPresentation(query, _, resultFeatures, resultCandidateFeatures))
-
-        val updatedCandidateFeatures = features ++ resultFeatures ++ resultCandidateFeatures
-
-        val updatedPresentation = presentation.map {
-          case urtModule @ UrtModulePresentation(timelineModule) =>
-            val clientEventDetails =
-              detailsBuilder(
-                query,
-                candidates.last.candidate,
-                query.features.get ++ updatedCandidateFeatures)
-            val updatedClientEventInfo =
-              timelineModule.clientEventInfo.map(_.copy(details = clientEventDetails))
-            val updatedTimelineModule =
-              timelineModule.copy(clientEventInfo = updatedClientEventInfo)
-            urtModule.copy(timelineModule = updatedTimelineModule)
-        }
-
-        module.copy(
-          candidates = updatedItemCandidates,
-          presentation = updatedPresentation,
-          features = updatedCandidateFeatures
-        )
-
-      case (any, position) => any
-    }
-
-    SelectorResult(remainingCandidates = remainingCandidates, result = updatedResult)
-  }
-
-  private def updateItemPresentation(
-    query: PipelineQuery,
-    item: ItemCandidateWithDetails,
-    resultCandidateFeatures: FeatureMap,
-    resultFeatures: FeatureMap,
-  ): ItemCandidateWithDetails = {
-    val updatedItemCandidateFeatures = item.features ++ resultFeatures ++ resultCandidateFeatures
-
-    val updatedPresentation = item.presentation.map {
-      case urtItem @ UrtItemPresentation(timelineItem: TweetItem, _) =>
-        val clientEventDetails =
-          detailsBuilder(query, item.candidate, query.features.get ++ updatedItemCandidateFeatures)
-        val updatedClientEventInfo =
-          timelineItem.clientEventInfo.map(_.copy(details = clientEventDetails))
-        val updatedTimelineItem = timelineItem.copy(clientEventInfo = updatedClientEventInfo)
-        urtItem.copy(timelineItem = updatedTimelineItem)
-      case any => any
-    }
-    item.copy(presentation = updatedPresentation, features = updatedItemCandidateFeatures)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector/UpdateNewTweetsPillDecoration.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector/UpdateNewTweetsPillDecoration.scala
deleted file mode 100644
index a805ae1a7..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector/UpdateNewTweetsPillDecoration.scala
+++ /dev/null
@@ -1,80 +0,0 @@
-package com.twitter.home_mixer.functional_component.selector
-
-import com.twitter.home_mixer.functional_component.selector.UpdateNewTweetsPillDecoration.NumAvatars
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.home_mixer.param.HomeGlobalParams.EnableNewTweetsPillAvatarsParam
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.product_mixer.component_library.model.candidate.ShowAlertCandidate
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.component_library.model.presentation.urt.UrtItemPresentation
-import com.twitter.product_mixer.core.functional_component.common.CandidateScope
-import com.twitter.product_mixer.core.functional_component.selector.Selector
-import com.twitter.product_mixer.core.functional_component.selector.SelectorResult
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.model.common.presentation.ItemCandidateWithDetails
-import com.twitter.product_mixer.core.model.marshalling.response.urt.ShowAlert
-import com.twitter.product_mixer.core.model.marshalling.response.urt.richtext.RichText
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stringcenter.client.StringCenter
-import com.twitter.stringcenter.client.core.ExternalString
-
-object UpdateNewTweetsPillDecoration {
-  val NumAvatars = 3
-}
-
-case class UpdateNewTweetsPillDecoration[Query <: PipelineQuery with HasDeviceContext](
-  override val pipelineScope: CandidateScope,
-  stringCenter: StringCenter,
-  seeNewTweetsString: ExternalString,
-  tweetedString: ExternalString)
-    extends Selector[Query] {
-
-  override def apply(
-    query: Query,
-    remainingCandidates: Seq[CandidateWithDetails],
-    result: Seq[CandidateWithDetails]
-  ): SelectorResult = {
-    val (alerts, otherCandidates) =
-      remainingCandidates.partition(candidate =>
-        candidate.isCandidateType[ShowAlertCandidate]() && pipelineScope.contains(candidate))
-    val updatedCandidates = alerts
-      .collectFirst {
-        case newTweetsPill: ItemCandidateWithDetails =>
-          val userIds = CandidatesUtil
-            .getItemCandidatesWithOnlyModuleLast(result)
-            .filter(candidate =>
-              candidate.isCandidateType[TweetCandidate]() && pipelineScope.contains(candidate))
-            .filterNot(_.features.getOrElse(IsRetweetFeature, false))
-            .flatMap(_.features.getOrElse(AuthorIdFeature, None))
-            .filterNot(_ == query.getRequiredUserId)
-            .distinct
-
-          val updatedPresentation = newTweetsPill.presentation.map {
-            case presentation: UrtItemPresentation =>
-              presentation.timelineItem match {
-                case alert: ShowAlert =>
-                  val text = if (useAvatars(query, userIds)) tweetedString else seeNewTweetsString
-                  val richText = RichText(
-                    text = stringCenter.prepare(text),
-                    entities = List.empty,
-                    rtl = None,
-                    alignment = None)
-
-                  val updatedAlert =
-                    alert.copy(userIds = Some(userIds.take(NumAvatars)), richText = Some(richText))
-                  presentation.copy(timelineItem = updatedAlert)
-              }
-          }
-          otherCandidates :+ newTweetsPill.copy(presentation = updatedPresentation)
-      }.getOrElse(remainingCandidates)
-
-    SelectorResult(remainingCandidates = updatedCandidates, result = result)
-  }
-
-  private def useAvatars(query: Query, userIds: Seq[Long]): Boolean = {
-    val enableAvatars = query.params(EnableNewTweetsPillAvatarsParam)
-    enableAvatars && userIds.size >= NumAvatars
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/BUILD.bazel
deleted file mode 100644
index f352ce63a..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/BUILD.bazel
+++ /dev/null
@@ -1,47 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/javax/inject:javax.inject",
-        "eventbus/client/src/main/scala/com/twitter/eventbus/client",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timeline_logging",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/service",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "kafka/finagle-kafka/finatra-kafka/src/main/scala",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/decorator/urt",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/presentation/urt",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/pipeline/candidate/who_to_follow_module",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/pipeline/candidate/who_to_subscribe_module",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/side_effect",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-        "src/scala/com/twitter/timelines/prediction/common/adapters",
-        "src/scala/com/twitter/timelines/prediction/features/common",
-        "src/thrift/com/twitter/timelines/impression:thrift-scala",
-        "src/thrift/com/twitter/timelines/impression_bloom_filter:thrift-scala",
-        "src/thrift/com/twitter/timelines/impression_store:thrift-scala",
-        "src/thrift/com/twitter/timelines/served_candidates_logging:served_candidates_logging-scala",
-        "src/thrift/com/twitter/timelines/suggests/common:poly_data_record-java",
-        "src/thrift/com/twitter/timelines/timeline_logging:thrift-scala",
-        "src/thrift/com/twitter/user_session_store:thrift-scala",
-        "timelinemixer/server/src/main/scala/com/twitter/timelinemixer/injection/store/persistence",
-        "timelines/ml:kafka",
-        "timelines/ml/cont_train/common/client/src/main/scala/com/twitter/timelines/ml/cont_train/common/client/kafka",
-        "timelines/ml/cont_train/common/domain/src/main/scala/com/twitter/timelines/ml/cont_train/common/domain/non_scalding",
-        "timelines/src/main/scala/com/twitter/timelines/clientconfig",
-        "timelines/src/main/scala/com/twitter/timelines/clients/manhattan/store",
-        "timelines/src/main/scala/com/twitter/timelines/impressionstore/impressionbloomfilter",
-        "timelines/src/main/scala/com/twitter/timelines/impressionstore/store",
-        "timelines/src/main/scala/com/twitter/timelines/injection/scribe",
-        "timelineservice/common:model",
-        "user_session_store/src/main/scala/com/twitter/user_session_store",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/ClientEventsBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/ClientEventsBuilder.scala
deleted file mode 100644
index a5cf739d3..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/ClientEventsBuilder.scala
+++ /dev/null
@@ -1,185 +0,0 @@
-package com.twitter.home_mixer.functional_component.side_effect
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.functional_component.decorator.HomeQueryTypePredicates
-import com.twitter.home_mixer.functional_component.decorator.builder.HomeTweetTypePredicates
-import com.twitter.home_mixer.model.HomeFeatures.AccountAgeFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.home_mixer.model.HomeFeatures.VideoDurationMsFeature
-import com.twitter.home_mixer.model.request.FollowingProduct
-import com.twitter.home_mixer.model.request.ForYouProduct
-import com.twitter.home_mixer.model.request.ListTweetsProduct
-import com.twitter.home_mixer.model.request.SubscribedProduct
-import com.twitter.product_mixer.component_library.side_effect.ScribeClientEventSideEffect.ClientEvent
-import com.twitter.product_mixer.component_library.side_effect.ScribeClientEventSideEffect.EventNamespace
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.model.common.presentation.ItemCandidateWithDetails
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelines.injection.scribe.InjectionScribeUtil
-
-private[side_effect] sealed trait ClientEventsBuilder {
-  private val FollowingSection = Some("latest")
-  private val ForYouSection = Some("home")
-  private val ListTweetsSection = Some("list")
-  private val SubscribedSection = Some("subscribed")
-
-  protected def section(query: PipelineQuery): Option[String] = {
-    query.product match {
-      case FollowingProduct => FollowingSection
-      case ForYouProduct => ForYouSection
-      case ListTweetsProduct => ListTweetsSection
-      case SubscribedProduct => SubscribedSection
-      case other => throw new UnsupportedOperationException(s"Unknown product: $other")
-    }
-  }
-
-  protected def count(
-    candidates: Seq[CandidateWithDetails],
-    predicate: FeatureMap => Boolean = _ => true,
-    queryFeatures: FeatureMap = FeatureMap.empty
-  ): Option[Long] = Some(candidates.view.count(item => predicate(item.features ++ queryFeatures)))
-
-  protected def sum(
-    candidates: Seq[CandidateWithDetails],
-    predicate: FeatureMap => Option[Int],
-    queryFeatures: FeatureMap = FeatureMap.empty
-  ): Option[Long] =
-    Some(candidates.view.flatMap(item => predicate(item.features ++ queryFeatures)).sum)
-}
-
-private[side_effect] object ServedEventsBuilder extends ClientEventsBuilder {
-
-  private val ServedTweetsAction = Some("served_tweets")
-  private val ServedUsersAction = Some("served_users")
-  private val InjectedComponent = Some("injected")
-  private val PromotedComponent = Some("promoted")
-  private val WhoToFollowComponent = Some("who_to_follow")
-  private val WhoToSubscribeComponent = Some("who_to_subscribe")
-  private val WithVideoDurationComponent = Some("with_video_duration")
-  private val VideoDurationSumElement = Some("video_duration_sum")
-  private val NumVideosElement = Some("num_videos")
-
-  def build(
-    query: PipelineQuery,
-    injectedTweets: Seq[ItemCandidateWithDetails],
-    promotedTweets: Seq[ItemCandidateWithDetails],
-    whoToFollowUsers: Seq[ItemCandidateWithDetails],
-    whoToSubscribeUsers: Seq[ItemCandidateWithDetails]
-  ): Seq[ClientEvent] = {
-    val baseEventNamespace = EventNamespace(
-      section = section(query),
-      action = ServedTweetsAction
-    )
-    val overallServedEvents = Seq(
-      ClientEvent(baseEventNamespace, eventValue = count(injectedTweets ++ promotedTweets)),
-      ClientEvent(
-        baseEventNamespace.copy(component = InjectedComponent),
-        eventValue = count(injectedTweets)),
-      ClientEvent(
-        baseEventNamespace.copy(component = PromotedComponent),
-        eventValue = count(promotedTweets)),
-      ClientEvent(
-        baseEventNamespace.copy(component = WhoToFollowComponent, action = ServedUsersAction),
-        eventValue = count(whoToFollowUsers)),
-      ClientEvent(
-        baseEventNamespace.copy(component = WhoToSubscribeComponent, action = ServedUsersAction),
-        eventValue = count(whoToSubscribeUsers)),
-    )
-
-    val tweetTypeServedEvents = HomeTweetTypePredicates.PredicateMap.map {
-      case (tweetType, predicate) =>
-        ClientEvent(
-          baseEventNamespace.copy(component = InjectedComponent, element = Some(tweetType)),
-          eventValue = count(injectedTweets, predicate, query.features.getOrElse(FeatureMap.empty))
-        )
-    }.toSeq
-
-    val suggestTypeServedEvents = injectedTweets
-      .flatMap(_.features.getOrElse(SuggestTypeFeature, None))
-      .map {
-        InjectionScribeUtil.scribeComponent
-      }
-      .groupBy(identity).map {
-        case (suggestType, group) =>
-          ClientEvent(
-            baseEventNamespace.copy(component = suggestType),
-            eventValue = Some(group.size.toLong))
-      }.toSeq
-
-    // Video duration events
-    val numVideosEvent = ClientEvent(
-      baseEventNamespace.copy(component = WithVideoDurationComponent, element = NumVideosElement),
-      eventValue = count(injectedTweets, _.getOrElse(VideoDurationMsFeature, None).nonEmpty)
-    )
-    val videoDurationSumEvent = ClientEvent(
-      baseEventNamespace
-        .copy(component = WithVideoDurationComponent, element = VideoDurationSumElement),
-      eventValue = sum(injectedTweets, _.getOrElse(VideoDurationMsFeature, None))
-    )
-    val videoEvents = Seq(numVideosEvent, videoDurationSumEvent)
-
-    overallServedEvents ++ tweetTypeServedEvents ++ suggestTypeServedEvents ++ videoEvents
-  }
-}
-
-private[side_effect] object EmptyTimelineEventsBuilder extends ClientEventsBuilder {
-  private val EmptyAction = Some("empty")
-  private val AccountAgeLessThan30MinutesComponent = Some("account_age_less_than_30_minutes")
-  private val ServedNonPromotedTweetElement = Some("served_non_promoted_tweet")
-
-  def build(
-    query: PipelineQuery,
-    injectedTweets: Seq[ItemCandidateWithDetails]
-  ): Seq[ClientEvent] = {
-    val baseEventNamespace = EventNamespace(
-      section = section(query),
-      action = EmptyAction
-    )
-
-    // Empty timeline events
-    val accountAgeLessThan30Minutes = query.features
-      .flatMap(_.getOrElse(AccountAgeFeature, None))
-      .exists(_.untilNow < 30.minutes)
-    val isEmptyTimeline = count(injectedTweets).contains(0L)
-    val predicates = Seq(
-      None -> isEmptyTimeline,
-      AccountAgeLessThan30MinutesComponent -> (isEmptyTimeline && accountAgeLessThan30Minutes)
-    )
-    for {
-      (component, predicate) <- predicates
-      if predicate
-    } yield ClientEvent(
-      baseEventNamespace.copy(component = component, element = ServedNonPromotedTweetElement))
-  }
-}
-
-private[side_effect] object QueryEventsBuilder extends ClientEventsBuilder {
-
-  private val ServedSizePredicateMap: Map[String, Int => Boolean] = Map(
-    ("size_is_empty", _ <= 0),
-    ("size_at_most_5", _ <= 5),
-    ("size_at_most_10", _ <= 10),
-    ("size_at_most_35", _ <= 35)
-  )
-
-  def build(
-    query: PipelineQuery,
-    injectedTweets: Seq[ItemCandidateWithDetails]
-  ): Seq[ClientEvent] = {
-    val baseEventNamespace = EventNamespace(
-      section = section(query)
-    )
-    val queryFeatureMap = query.features.getOrElse(FeatureMap.empty)
-    val servedSizeQueryEvents =
-      for {
-        (queryPredicateName, queryPredicate) <- HomeQueryTypePredicates.PredicateMap
-        if queryPredicate(queryFeatureMap)
-        (servedSizePredicateName, servedSizePredicate) <- ServedSizePredicateMap
-        if servedSizePredicate(injectedTweets.size)
-      } yield ClientEvent(
-        baseEventNamespace
-          .copy(component = Some(servedSizePredicateName), action = Some(queryPredicateName)))
-    servedSizeQueryEvents.toSeq
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/HomeScribeClientEventSideEffect.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/HomeScribeClientEventSideEffect.scala
deleted file mode 100644
index a8feef707..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/HomeScribeClientEventSideEffect.scala
+++ /dev/null
@@ -1,75 +0,0 @@
-package com.twitter.home_mixer.functional_component.side_effect
-
-import com.twitter.clientapp.thriftscala.LogEvent
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.logpipeline.client.common.EventPublisher
-import com.twitter.product_mixer.component_library.side_effect.ScribeClientEventSideEffect
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.SideEffectIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.model.marshalling.response.urt.Timeline
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-
-/**
- * Side effect that logs served tweet metrics to Scribe as client events.
- */
-case class HomeScribeClientEventSideEffect(
-  enableScribeClientEvents: Boolean,
-  override val logPipelinePublisher: EventPublisher[LogEvent],
-  injectedTweetsCandidatePipelineIdentifiers: Seq[CandidatePipelineIdentifier],
-  adsCandidatePipelineIdentifier: Option[CandidatePipelineIdentifier] = None,
-  whoToFollowCandidatePipelineIdentifier: Option[CandidatePipelineIdentifier] = None,
-  whoToSubscribeCandidatePipelineIdentifier: Option[CandidatePipelineIdentifier] = None)
-    extends ScribeClientEventSideEffect[PipelineQuery, Timeline]
-    with PipelineResultSideEffect.Conditionally[
-      PipelineQuery,
-      Timeline
-    ] {
-
-  override val identifier: SideEffectIdentifier = SideEffectIdentifier("HomeScribeClientEvent")
-
-  override val page = "timelinemixer"
-
-  override def onlyIf(
-    query: PipelineQuery,
-    selectedCandidates: Seq[CandidateWithDetails],
-    remainingCandidates: Seq[CandidateWithDetails],
-    droppedCandidates: Seq[CandidateWithDetails],
-    response: Timeline
-  ): Boolean = enableScribeClientEvents
-
-  override def buildClientEvents(
-    query: PipelineQuery,
-    selectedCandidates: Seq[CandidateWithDetails],
-    remainingCandidates: Seq[CandidateWithDetails],
-    droppedCandidates: Seq[CandidateWithDetails],
-    response: Timeline
-  ): Seq[ScribeClientEventSideEffect.ClientEvent] = {
-
-    val itemCandidates = CandidatesUtil.getItemCandidates(selectedCandidates)
-    val sources = itemCandidates.groupBy(_.source)
-    val injectedTweets =
-      injectedTweetsCandidatePipelineIdentifiers.flatMap(sources.getOrElse(_, Seq.empty))
-    val promotedTweets = adsCandidatePipelineIdentifier.flatMap(sources.get).toSeq.flatten
-
-    // WhoToFollow and WhoToSubscribe modules are not required for all home-mixer products, e.g. list tweets timeline.
-    val whoToFollowUsers = whoToFollowCandidatePipelineIdentifier.flatMap(sources.get).toSeq.flatten
-    val whoToSubscribeUsers =
-      whoToSubscribeCandidatePipelineIdentifier.flatMap(sources.get).toSeq.flatten
-
-    val servedEvents = ServedEventsBuilder
-      .build(query, injectedTweets, promotedTweets, whoToFollowUsers, whoToSubscribeUsers)
-
-    val emptyTimelineEvents = EmptyTimelineEventsBuilder.build(query, injectedTweets)
-
-    val queryEvents = QueryEventsBuilder.build(query, injectedTweets)
-
-    (servedEvents ++ emptyTimelineEvents ++ queryEvents).filter(_.eventValue.forall(_ > 0))
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.9)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/HomeScribeServedCandidatesSideEffect.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/HomeScribeServedCandidatesSideEffect.scala
deleted file mode 100644
index 3f19dfc99..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/HomeScribeServedCandidatesSideEffect.scala
+++ /dev/null
@@ -1,245 +0,0 @@
-package com.twitter.home_mixer.functional_component.side_effect
-
-import com.twitter.finagle.tracing.Trace
-import com.twitter.home_mixer.marshaller.timeline_logging.PromotedTweetDetailsMarshaller
-import com.twitter.home_mixer.marshaller.timeline_logging.TweetDetailsMarshaller
-import com.twitter.home_mixer.marshaller.timeline_logging.WhoToFollowDetailsMarshaller
-import com.twitter.home_mixer.model.HomeFeatures.GetInitialFeature
-import com.twitter.home_mixer.model.HomeFeatures.GetMiddleFeature
-import com.twitter.home_mixer.model.HomeFeatures.GetNewerFeature
-import com.twitter.home_mixer.model.HomeFeatures.GetOlderFeature
-import com.twitter.home_mixer.model.HomeFeatures.HasDarkRequestFeature
-import com.twitter.home_mixer.model.HomeFeatures.RequestJoinIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.ScoreFeature
-import com.twitter.home_mixer.model.HomeFeatures.ServedRequestIdFeature
-import com.twitter.home_mixer.model.request.DeviceContext.RequestContext
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.home_mixer.model.request.HasSeenTweetIds
-import com.twitter.home_mixer.model.request.FollowingProduct
-import com.twitter.home_mixer.model.request.ForYouProduct
-import com.twitter.home_mixer.model.request.SubscribedProduct
-import com.twitter.home_mixer.param.HomeMixerFlagName.ScribeServedCandidatesFlag
-import com.twitter.home_mixer.param.HomeGlobalParams.EnableScribeServedCandidatesParam
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.inject.annotations.Flag
-import com.twitter.logpipeline.client.common.EventPublisher
-import com.twitter.product_mixer.component_library.model.candidate.BaseTweetCandidate
-import com.twitter.product_mixer.component_library.model.candidate.BaseUserCandidate
-import com.twitter.product_mixer.component_library.pipeline.candidate.who_to_follow_module.WhoToFollowCandidateDecorator
-import com.twitter.product_mixer.component_library.pipeline.candidate.who_to_subscribe_module.WhoToSubscribeCandidateDecorator
-import com.twitter.product_mixer.component_library.side_effect.ScribeLogEventSideEffect
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.identifier.SideEffectIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.model.common.presentation.ItemCandidateWithDetails
-import com.twitter.product_mixer.core.model.common.presentation.ModuleCandidateWithDetails
-import com.twitter.product_mixer.core.model.marshalling.response.urt.AddEntriesTimelineInstruction
-import com.twitter.product_mixer.core.model.marshalling.response.urt.ModuleItem
-import com.twitter.product_mixer.core.model.marshalling.response.urt.Timeline
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineModule
-import com.twitter.product_mixer.core.model.marshalling.response.urt.item.tweet.TweetItem
-import com.twitter.product_mixer.core.model.marshalling.response.urt.item.user.UserItem
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelines.timeline_logging.{thriftscala => thrift}
-import com.twitter.util.Time
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Side effect that logs home timeline served candidates to Scribe.
- */
-@Singleton
-class HomeScribeServedCandidatesSideEffect @Inject() (
-  @Flag(ScribeServedCandidatesFlag) enableScribeServedCandidates: Boolean,
-  scribeEventPublisher: EventPublisher[thrift.ServedEntry])
-    extends ScribeLogEventSideEffect[
-      thrift.ServedEntry,
-      PipelineQuery with HasSeenTweetIds with HasDeviceContext,
-      Timeline
-    ]
-    with PipelineResultSideEffect.Conditionally[
-      PipelineQuery with HasSeenTweetIds with HasDeviceContext,
-      Timeline
-    ] {
-
-  override val identifier: SideEffectIdentifier = SideEffectIdentifier("HomeScribeServedCandidates")
-
-  override def onlyIf(
-    query: PipelineQuery with HasSeenTweetIds with HasDeviceContext,
-    selectedCandidates: Seq[CandidateWithDetails],
-    remainingCandidates: Seq[CandidateWithDetails],
-    droppedCandidates: Seq[CandidateWithDetails],
-    response: Timeline
-  ): Boolean = enableScribeServedCandidates && query.params(EnableScribeServedCandidatesParam)
-
-  override def buildLogEvents(
-    query: PipelineQuery with HasSeenTweetIds with HasDeviceContext,
-    selectedCandidates: Seq[CandidateWithDetails],
-    remainingCandidates: Seq[CandidateWithDetails],
-    droppedCandidates: Seq[CandidateWithDetails],
-    response: Timeline
-  ): Seq[thrift.ServedEntry] = {
-    val timelineType = query.product match {
-      case FollowingProduct => thrift.TimelineType.HomeLatest
-      case ForYouProduct => thrift.TimelineType.Home
-      case SubscribedProduct => thrift.TimelineType.HomeSubscribed
-      case other => throw new UnsupportedOperationException(s"Unknown product: $other")
-    }
-    val requestProvenance = query.deviceContext.map { deviceContext =>
-      deviceContext.requestContextValue match {
-        case RequestContext.Foreground => thrift.RequestProvenance.Foreground
-        case RequestContext.Launch => thrift.RequestProvenance.Launch
-        case RequestContext.PullToRefresh => thrift.RequestProvenance.Ptr
-        case _ => thrift.RequestProvenance.Other
-      }
-    }
-    val queryType = query.features.map { featureMap =>
-      if (featureMap.getOrElse(GetOlderFeature, false)) thrift.QueryType.GetOlder
-      else if (featureMap.getOrElse(GetNewerFeature, false)) thrift.QueryType.GetNewer
-      else if (featureMap.getOrElse(GetMiddleFeature, false)) thrift.QueryType.GetMiddle
-      else if (featureMap.getOrElse(GetInitialFeature, false)) thrift.QueryType.GetInitial
-      else thrift.QueryType.Other
-    }
-    val requestInfo = thrift.RequestInfo(
-      requestTimeMs = query.queryTime.inMilliseconds,
-      traceId = Trace.id.traceId.toLong,
-      userId = query.getOptionalUserId,
-      clientAppId = query.clientContext.appId,
-      hasDarkRequest = query.features.flatMap(_.getOrElse(HasDarkRequestFeature, None)),
-      parentId = Some(Trace.id.parentId.toLong),
-      spanId = Some(Trace.id.spanId.toLong),
-      timelineType = Some(timelineType),
-      ipAddress = query.clientContext.ipAddress,
-      userAgent = query.clientContext.userAgent,
-      queryType = queryType,
-      requestProvenance = requestProvenance,
-      languageCode = query.clientContext.languageCode,
-      countryCode = query.clientContext.countryCode,
-      requestEndTimeMs = Some(Time.now.inMilliseconds),
-      servedRequestId = query.features.flatMap(_.getOrElse(ServedRequestIdFeature, None)),
-      requestJoinId = query.features.flatMap(_.getOrElse(RequestJoinIdFeature, None))
-    )
-
-    val tweetIdToItemCandidateMap: Map[Long, ItemCandidateWithDetails] =
-      selectedCandidates.flatMap {
-        case item: ItemCandidateWithDetails if item.candidate.isInstanceOf[BaseTweetCandidate] =>
-          Seq((item.candidateIdLong, item))
-        case module: ModuleCandidateWithDetails
-            if module.candidates.headOption.exists(_.candidate.isInstanceOf[BaseTweetCandidate]) =>
-          module.candidates.map(item => (item.candidateIdLong, item))
-        case _ => Seq.empty
-      }.toMap
-
-    val userIdToItemCandidateMap: Map[Long, ItemCandidateWithDetails] =
-      selectedCandidates.flatMap {
-        case module: ModuleCandidateWithDetails
-            if module.candidates.forall(_.candidate.isInstanceOf[BaseUserCandidate]) =>
-          module.candidates.map { item =>
-            (item.candidateIdLong, item)
-          }
-        case _ => Seq.empty
-      }.toMap
-
-    response.instructions.zipWithIndex
-      .collect {
-        case (AddEntriesTimelineInstruction(entries), index) =>
-          entries.collect {
-            case entry: TweetItem if entry.promotedMetadata.isDefined =>
-              val promotedTweetDetails = PromotedTweetDetailsMarshaller(entry, index)
-              Seq(
-                thrift.EntryInfo(
-                  id = entry.id,
-                  position = index.shortValue(),
-                  entryId = entry.entryIdentifier,
-                  entryType = thrift.EntryType.PromotedTweet,
-                  sortIndex = entry.sortIndex,
-                  verticalSize = Some(1),
-                  displayType = Some(entry.displayType.toString),
-                  details = Some(thrift.ItemDetails.PromotedTweetDetails(promotedTweetDetails))
-                )
-              )
-            case entry: TweetItem =>
-              val candidate = tweetIdToItemCandidateMap(entry.id)
-              val tweetDetails = TweetDetailsMarshaller(entry, candidate)
-              Seq(
-                thrift.EntryInfo(
-                  id = candidate.candidateIdLong,
-                  position = index.shortValue(),
-                  entryId = entry.entryIdentifier,
-                  entryType = thrift.EntryType.Tweet,
-                  sortIndex = entry.sortIndex,
-                  verticalSize = Some(1),
-                  score = candidate.features.getOrElse(ScoreFeature, None),
-                  displayType = Some(entry.displayType.toString),
-                  details = Some(thrift.ItemDetails.TweetDetails(tweetDetails))
-                )
-              )
-            case module: TimelineModule
-                if module.entryNamespace.toString == WhoToFollowCandidateDecorator.EntryNamespaceString =>
-              module.items.collect {
-                case ModuleItem(entry: UserItem, _, _) =>
-                  val candidate = userIdToItemCandidateMap(entry.id)
-                  val whoToFollowDetails = WhoToFollowDetailsMarshaller(entry, candidate)
-                  thrift.EntryInfo(
-                    id = entry.id,
-                    position = index.shortValue(),
-                    entryId = module.entryIdentifier,
-                    entryType = thrift.EntryType.WhoToFollowModule,
-                    sortIndex = module.sortIndex,
-                    score = candidate.features.getOrElse(ScoreFeature, None),
-                    displayType = Some(entry.displayType.toString),
-                    details = Some(thrift.ItemDetails.WhoToFollowDetails(whoToFollowDetails))
-                  )
-              }
-            case module: TimelineModule
-                if module.entryNamespace.toString == WhoToSubscribeCandidateDecorator.EntryNamespaceString =>
-              module.items.collect {
-                case ModuleItem(entry: UserItem, _, _) =>
-                  val candidate = userIdToItemCandidateMap(entry.id)
-                  val whoToSubscribeDetails = WhoToFollowDetailsMarshaller(entry, candidate)
-                  thrift.EntryInfo(
-                    id = entry.id,
-                    position = index.shortValue(),
-                    entryId = module.entryIdentifier,
-                    entryType = thrift.EntryType.WhoToSubscribeModule,
-                    sortIndex = module.sortIndex,
-                    score = candidate.features.getOrElse(ScoreFeature, None),
-                    displayType = Some(entry.displayType.toString),
-                    details = Some(thrift.ItemDetails.WhoToFollowDetails(whoToSubscribeDetails))
-                  )
-              }
-            case module: TimelineModule
-                if module.sortIndex.isDefined && module.items.headOption.exists(
-                  _.item.isInstanceOf[TweetItem]) =>
-              module.items.collect {
-                case ModuleItem(entry: TweetItem, _, _) =>
-                  val candidate = tweetIdToItemCandidateMap(entry.id)
-                  thrift.EntryInfo(
-                    id = entry.id,
-                    position = index.shortValue(),
-                    entryId = module.entryIdentifier,
-                    entryType = thrift.EntryType.ConversationModule,
-                    sortIndex = module.sortIndex,
-                    score = candidate.features.getOrElse(ScoreFeature, None),
-                    displayType = Some(entry.displayType.toString)
-                  )
-              }
-            case _ => Seq.empty
-          }.flatten
-        // Other instructions
-        case _ => Seq.empty[thrift.EntryInfo]
-      }.flatten.map { entryInfo =>
-        thrift.ServedEntry(
-          entry = Some(entryInfo),
-          request = requestInfo
-        )
-      }
-  }
-
-  override val logPipelinePublisher: EventPublisher[thrift.ServedEntry] =
-    scribeEventPublisher
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert()
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/PublishClientSentImpressionsEventBusSideEffect.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/PublishClientSentImpressionsEventBusSideEffect.scala
deleted file mode 100644
index c0437767e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/PublishClientSentImpressionsEventBusSideEffect.scala
+++ /dev/null
@@ -1,95 +0,0 @@
-package com.twitter.home_mixer.functional_component.side_effect
-
-import com.twitter.eventbus.client.EventBusPublisher
-import com.twitter.home_mixer.model.request.FollowingProduct
-import com.twitter.home_mixer.model.request.ForYouProduct
-import com.twitter.home_mixer.model.request.SubscribedProduct
-import com.twitter.home_mixer.model.request.HasSeenTweetIds
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.identifier.SideEffectIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.model.marshalling.HasMarshalling
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.impressionstore.thriftscala.Impression
-import com.twitter.timelines.impressionstore.thriftscala.ImpressionList
-import com.twitter.timelines.impressionstore.thriftscala.PublishedImpressionList
-import com.twitter.timelines.impressionstore.thriftscala.SurfaceArea
-import com.twitter.util.Time
-import javax.inject.Inject
-import javax.inject.Singleton
-
-object PublishClientSentImpressionsEventBusSideEffect {
-  val HomeSurfaceArea: Option[Set[SurfaceArea]] = Some(Set(SurfaceArea.HomeTimeline))
-  val HomeLatestSurfaceArea: Option[Set[SurfaceArea]] = Some(Set(SurfaceArea.HomeLatestTimeline))
-  val HomeSubscribedSurfaceArea: Option[Set[SurfaceArea]] = Some(Set(SurfaceArea.HomeSubscribed))
-}
-
-/**
- * Side effect that publishes seen tweet IDs sent from clients. The seen tweet IDs are sent to a
- * heron topology which writes to a memcache dataset.
- */
-@Singleton
-class PublishClientSentImpressionsEventBusSideEffect @Inject() (
-  eventBusPublisher: EventBusPublisher[PublishedImpressionList])
-    extends PipelineResultSideEffect[PipelineQuery with HasSeenTweetIds, HasMarshalling]
-    with PipelineResultSideEffect.Conditionally[
-      PipelineQuery with HasSeenTweetIds,
-      HasMarshalling
-    ] {
-  import PublishClientSentImpressionsEventBusSideEffect._
-
-  override val identifier: SideEffectIdentifier =
-    SideEffectIdentifier("PublishClientSentImpressionsEventBus")
-
-  override def onlyIf(
-    query: PipelineQuery with HasSeenTweetIds,
-    selectedCandidates: Seq[CandidateWithDetails],
-    remainingCandidates: Seq[CandidateWithDetails],
-    droppedCandidates: Seq[CandidateWithDetails],
-    response: HasMarshalling
-  ): Boolean = query.seenTweetIds.exists(_.nonEmpty)
-
-  def buildEvents(
-    query: PipelineQuery with HasSeenTweetIds,
-    currentTime: Long
-  ): Option[Seq[Impression]] = {
-    val surfaceArea = query.product match {
-      case ForYouProduct => HomeSurfaceArea
-      case FollowingProduct => HomeLatestSurfaceArea
-      case SubscribedProduct => HomeSubscribedSurfaceArea
-      case _ => None
-    }
-    query.seenTweetIds.map { seenTweetIds =>
-      seenTweetIds.map { tweetId =>
-        Impression(
-          tweetId = tweetId,
-          impressionTime = Some(currentTime),
-          surfaceAreas = surfaceArea
-        )
-      }
-    }
-  }
-
-  final override def apply(
-    inputs: PipelineResultSideEffect.Inputs[PipelineQuery with HasSeenTweetIds, HasMarshalling]
-  ): Stitch[Unit] = {
-    val currentTime = Time.now.inMilliseconds
-    val impressions = buildEvents(inputs.query, currentTime)
-
-    Stitch.callFuture(
-      eventBusPublisher.publish(
-        PublishedImpressionList(
-          inputs.query.getRequiredUserId,
-          ImpressionList(impressions),
-          currentTime
-        )
-      )
-    )
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.4)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/PublishClientSentImpressionsManhattanSideEffect.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/PublishClientSentImpressionsManhattanSideEffect.scala
deleted file mode 100644
index bf365f1a6..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/PublishClientSentImpressionsManhattanSideEffect.scala
+++ /dev/null
@@ -1,65 +0,0 @@
-package com.twitter.home_mixer.functional_component.side_effect
-
-import com.twitter.home_mixer.model.HomeFeatures.TweetImpressionsFeature
-import com.twitter.home_mixer.model.request.HasSeenTweetIds
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.identifier.SideEffectIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.model.marshalling.HasMarshalling
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.impression.{thriftscala => t}
-import com.twitter.timelines.impressionstore.store.ManhattanTweetImpressionStoreClient
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Side effect that updates the timelines tweet impression
- * store (Manhattan) with seen tweet IDs sent from clients
- */
-@Singleton
-class PublishClientSentImpressionsManhattanSideEffect @Inject() (
-  manhattanTweetImpressionStoreClient: ManhattanTweetImpressionStoreClient)
-    extends PipelineResultSideEffect[PipelineQuery with HasSeenTweetIds, HasMarshalling]
-    with PipelineResultSideEffect.Conditionally[
-      PipelineQuery with HasSeenTweetIds,
-      HasMarshalling
-    ] {
-
-  override val identifier: SideEffectIdentifier =
-    SideEffectIdentifier("PublishClientSentImpressionsManhattan")
-
-  override def onlyIf(
-    query: PipelineQuery with HasSeenTweetIds,
-    selectedCandidates: Seq[CandidateWithDetails],
-    remainingCandidates: Seq[CandidateWithDetails],
-    droppedCandidates: Seq[CandidateWithDetails],
-    response: HasMarshalling
-  ): Boolean = query.seenTweetIds.exists(_.nonEmpty)
-
-  def buildEvents(query: PipelineQuery): Option[(Long, t.TweetImpressionsEntries)] = {
-    query.features.flatMap { featureMap =>
-      val impressions = featureMap.getOrElse(TweetImpressionsFeature, Seq.empty)
-      if (impressions.nonEmpty)
-        Some((query.getRequiredUserId, t.TweetImpressionsEntries(impressions)))
-      else None
-    }
-  }
-
-  final override def apply(
-    inputs: PipelineResultSideEffect.Inputs[PipelineQuery with HasSeenTweetIds, HasMarshalling]
-  ): Stitch[Unit] = {
-    val events = buildEvents(inputs.query)
-
-    Stitch
-      .traverse(events) {
-        case (key, value) => manhattanTweetImpressionStoreClient.write(key, value)
-      }
-      .unit
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.4)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/PublishImpressionBloomFilterSideEffect.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/PublishImpressionBloomFilterSideEffect.scala
deleted file mode 100644
index f965bafac..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/PublishImpressionBloomFilterSideEffect.scala
+++ /dev/null
@@ -1,65 +0,0 @@
-package com.twitter.home_mixer.functional_component.side_effect
-
-import com.twitter.home_mixer.model.HomeFeatures.ImpressionBloomFilterFeature
-import com.twitter.home_mixer.model.request.HasSeenTweetIds
-import com.twitter.home_mixer.param.HomeGlobalParams.EnableImpressionBloomFilter
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.identifier.SideEffectIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.model.marshalling.HasMarshalling
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.clients.manhattan.store.ManhattanStoreClient
-import com.twitter.timelines.impressionbloomfilter.{thriftscala => blm}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class PublishImpressionBloomFilterSideEffect @Inject() (
-  bloomFilterClient: ManhattanStoreClient[
-    blm.ImpressionBloomFilterKey,
-    blm.ImpressionBloomFilterSeq
-  ]) extends PipelineResultSideEffect[PipelineQuery with HasSeenTweetIds, HasMarshalling]
-    with PipelineResultSideEffect.Conditionally[
-      PipelineQuery with HasSeenTweetIds,
-      HasMarshalling
-    ] {
-
-  override val identifier: SideEffectIdentifier =
-    SideEffectIdentifier("PublishImpressionBloomFilter")
-
-  private val SurfaceArea = blm.SurfaceArea.HomeTimeline
-
-  override def onlyIf(
-    query: PipelineQuery with HasSeenTweetIds,
-    selectedCandidates: Seq[CandidateWithDetails],
-    remainingCandidates: Seq[CandidateWithDetails],
-    droppedCandidates: Seq[CandidateWithDetails],
-    response: HasMarshalling
-  ): Boolean =
-    query.params.getBoolean(EnableImpressionBloomFilter) && query.seenTweetIds.exists(_.nonEmpty)
-
-  def buildEvents(query: PipelineQuery): Option[blm.ImpressionBloomFilterSeq] = {
-    query.features.flatMap { featureMap =>
-      val impressionBloomFilterSeq = featureMap.get(ImpressionBloomFilterFeature)
-      if (impressionBloomFilterSeq.entries.nonEmpty) Some(impressionBloomFilterSeq)
-      else None
-    }
-  }
-
-  override def apply(
-    inputs: PipelineResultSideEffect.Inputs[PipelineQuery with HasSeenTweetIds, HasMarshalling]
-  ): Stitch[Unit] = {
-    buildEvents(inputs.query)
-      .map { updatedBloomFilterSeq =>
-        bloomFilterClient.write(
-          blm.ImpressionBloomFilterKey(inputs.query.getRequiredUserId, SurfaceArea),
-          updatedBloomFilterSeq)
-      }.getOrElse(Stitch.Unit)
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.8)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/TruncateTimelinesPersistenceStoreSideEffect.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/TruncateTimelinesPersistenceStoreSideEffect.scala
deleted file mode 100644
index 63855d3b8..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/TruncateTimelinesPersistenceStoreSideEffect.scala
+++ /dev/null
@@ -1,68 +0,0 @@
-package com.twitter.home_mixer.functional_component.side_effect
-
-import com.twitter.home_mixer.model.HomeFeatures.PersistenceEntriesFeature
-import com.twitter.home_mixer.model.request.FollowingProduct
-import com.twitter.home_mixer.model.request.ForYouProduct
-import com.twitter.home_mixer.param.HomeGlobalParams.TimelinesPersistenceStoreMaxEntriesPerClient
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.identifier.SideEffectIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.urt.Timeline
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelinemixer.clients.persistence.TimelineResponseBatchesClient
-import com.twitter.timelinemixer.clients.persistence.TimelineResponseV3
-import com.twitter.timelineservice.model.TimelineQuery
-import com.twitter.timelineservice.model.core.TimelineKind
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Side effect that truncates entries in the Timelines Persistence store
- * based on the number of entries per client.
- */
-@Singleton
-class TruncateTimelinesPersistenceStoreSideEffect @Inject() (
-  timelineResponseBatchesClient: TimelineResponseBatchesClient[TimelineResponseV3])
-    extends PipelineResultSideEffect[PipelineQuery, Timeline] {
-
-  override val identifier: SideEffectIdentifier =
-    SideEffectIdentifier("TruncateTimelinesPersistenceStore")
-
-  def getResponsesToDelete(query: PipelineQuery): Seq[TimelineResponseV3] = {
-    val responses =
-      query.features.map(_.getOrElse(PersistenceEntriesFeature, Seq.empty)).toSeq.flatten
-    val responsesByClient = responses.groupBy(_.clientPlatform).values.toSeq
-    val maxEntriesPerClient = query.params(TimelinesPersistenceStoreMaxEntriesPerClient)
-
-    responsesByClient.flatMap {
-      _.sortBy(_.servedTime.inMilliseconds)
-        .foldRight((Seq.empty[TimelineResponseV3], maxEntriesPerClient)) {
-          case (response, (responsesToDelete, remainingCap)) =>
-            if (remainingCap > 0) (responsesToDelete, remainingCap - response.entries.size)
-            else (response +: responsesToDelete, remainingCap)
-        } match { case (responsesToDelete, _) => responsesToDelete }
-    }
-  }
-
-  final override def apply(
-    inputs: PipelineResultSideEffect.Inputs[PipelineQuery, Timeline]
-  ): Stitch[Unit] = {
-    val timelineKind = inputs.query.product match {
-      case FollowingProduct => TimelineKind.homeLatest
-      case ForYouProduct => TimelineKind.home
-      case other => throw new UnsupportedOperationException(s"Unknown product: $other")
-    }
-    val timelineQuery = TimelineQuery(id = inputs.query.getRequiredUserId, kind = timelineKind)
-
-    val responsesToDelete = getResponsesToDelete(inputs.query)
-
-    if (responsesToDelete.nonEmpty)
-      Stitch.callFuture(timelineResponseBatchesClient.delete(timelineQuery, responsesToDelete))
-    else Stitch.Unit
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.8)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/UpdateLastNonPollingTimeSideEffect.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/UpdateLastNonPollingTimeSideEffect.scala
deleted file mode 100644
index 24199a79c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/UpdateLastNonPollingTimeSideEffect.scala
+++ /dev/null
@@ -1,78 +0,0 @@
-package com.twitter.home_mixer.functional_component.side_effect
-
-import com.twitter.home_mixer.model.HomeFeatures.FollowingLastNonPollingTimeFeature
-import com.twitter.home_mixer.model.HomeFeatures.NonPollingTimesFeature
-import com.twitter.home_mixer.model.HomeFeatures.PollingFeature
-import com.twitter.home_mixer.model.request.DeviceContext
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.home_mixer.model.request.FollowingProduct
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.component_library.side_effect.UserSessionStoreUpdateSideEffect
-import com.twitter.product_mixer.core.model.common.identifier.SideEffectIdentifier
-import com.twitter.product_mixer.core.model.marshalling.HasMarshalling
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelineservice.model.util.FinagleRequestContext
-import com.twitter.user_session_store.ReadWriteUserSessionStore
-import com.twitter.user_session_store.WriteRequest
-import com.twitter.user_session_store.thriftscala.NonPollingTimestamps
-import com.twitter.user_session_store.thriftscala.UserSessionField
-import com.twitter.util.Time
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Side effect that updates the User Session Store (Manhattan) with the timestamps of non polling requests.
- */
-@Singleton
-class UpdateLastNonPollingTimeSideEffect[
-  Query <: PipelineQuery with HasDeviceContext,
-  ResponseType <: HasMarshalling] @Inject() (
-  override val userSessionStore: ReadWriteUserSessionStore)
-    extends UserSessionStoreUpdateSideEffect[
-      WriteRequest,
-      Query,
-      ResponseType
-    ] {
-  private val MaxNonPollingTimes = 10
-
-  override val identifier: SideEffectIdentifier = SideEffectIdentifier("UpdateLastNonPollingTime")
-
-  /**
-   * When the request is non polling and is not a background fetch request, update
-   * the list of non polling timestamps with the timestamp of the current request
-   */
-  override def buildWriteRequest(query: Query): Option[WriteRequest] = {
-    val isBackgroundFetch = query.deviceContext
-      .exists(_.requestContextValue.contains(DeviceContext.RequestContext.BackgroundFetch))
-
-    if (!query.features.exists(_.getOrElse(PollingFeature, false)) && !isBackgroundFetch) {
-      val fields = Seq(UserSessionField.NonPollingTimestamps(makeLastNonPollingTimestamps(query)))
-      Some(WriteRequest(query.getRequiredUserId, fields))
-    } else None
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.96)
-  )
-
-  private def makeLastNonPollingTimestamps(query: Query): NonPollingTimestamps = {
-    val priorNonPollingTimestamps =
-      query.features.map(_.getOrElse(NonPollingTimesFeature, Seq.empty)).toSeq.flatten
-
-    val lastNonPollingTimeMs =
-      FinagleRequestContext.default.requestStartTime.get.getOrElse(Time.now).inMillis
-
-    val followingLastNonPollingTime = query.features
-      .flatMap(features => features.getOrElse(FollowingLastNonPollingTimeFeature, None))
-      .map(_.inMillis)
-
-    NonPollingTimestamps(
-      nonPollingTimestampsMs =
-        (lastNonPollingTimeMs +: priorNonPollingTimestamps).take(MaxNonPollingTimes),
-      mostRecentHomeLatestNonPollingTimestampMs =
-        if (query.product == FollowingProduct) Some(lastNonPollingTimeMs)
-        else followingLastNonPollingTime
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/UpdateTimelinesPersistenceStoreSideEffect.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/UpdateTimelinesPersistenceStoreSideEffect.scala
deleted file mode 100644
index 5a1bb0f6b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect/UpdateTimelinesPersistenceStoreSideEffect.scala
+++ /dev/null
@@ -1,263 +0,0 @@
-package com.twitter.home_mixer.functional_component.side_effect
-
-import com.twitter.home_mixer.model.HomeFeatures._
-import com.twitter.home_mixer.model.request.FollowingProduct
-import com.twitter.home_mixer.model.request.ForYouProduct
-import com.twitter.home_mixer.model.HomeFeatures.IsTweetPreviewFeature
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.component_library.pipeline.candidate.who_to_follow_module.WhoToFollowCandidateDecorator
-import com.twitter.product_mixer.component_library.pipeline.candidate.who_to_subscribe_module.WhoToSubscribeCandidateDecorator
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.identifier.SideEffectIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.ItemCandidateWithDetails
-import com.twitter.product_mixer.core.model.common.presentation.ModuleCandidateWithDetails
-import com.twitter.product_mixer.core.model.marshalling.response.urt.AddEntriesTimelineInstruction
-import com.twitter.product_mixer.core.model.marshalling.response.urt.ReplaceEntryTimelineInstruction
-import com.twitter.product_mixer.core.model.marshalling.response.urt.ShowCoverInstruction
-import com.twitter.product_mixer.core.model.marshalling.response.urt.Timeline
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineModule
-import com.twitter.product_mixer.core.model.marshalling.response.urt.item.tweet.TweetItem
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelinemixer.clients.persistence.EntryWithItemIds
-import com.twitter.timelinemixer.clients.persistence.ItemIds
-import com.twitter.timelinemixer.clients.persistence.TimelineResponseBatchesClient
-import com.twitter.timelinemixer.clients.persistence.TimelineResponseV3
-import com.twitter.timelines.persistence.thriftscala.TweetScoreV1
-import com.twitter.timelines.persistence.{thriftscala => persistence}
-import com.twitter.timelineservice.model.TimelineQuery
-import com.twitter.timelineservice.model.TimelineQueryOptions
-import com.twitter.timelineservice.model.TweetScore
-import com.twitter.timelineservice.model.core.TimelineKind
-import com.twitter.timelineservice.model.rich.EntityIdType
-import com.twitter.util.Time
-import com.twitter.{timelineservice => tls}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-object UpdateTimelinesPersistenceStoreSideEffect {
-  val EmptyItemIds = ItemIds(
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None)
-}
-
-/**
- * Side effect that updates the Timelines Persistence Store (Manhattan) with the entries being returned.
- */
-@Singleton
-class UpdateTimelinesPersistenceStoreSideEffect @Inject() (
-  timelineResponseBatchesClient: TimelineResponseBatchesClient[TimelineResponseV3])
-    extends PipelineResultSideEffect[PipelineQuery, Timeline] {
-
-  override val identifier: SideEffectIdentifier =
-    SideEffectIdentifier("UpdateTimelinesPersistenceStore")
-
-  final override def apply(
-    inputs: PipelineResultSideEffect.Inputs[PipelineQuery, Timeline]
-  ): Stitch[Unit] = {
-    if (inputs.response.instructions.nonEmpty) {
-      val timelineKind = inputs.query.product match {
-        case FollowingProduct => TimelineKind.homeLatest
-        case ForYouProduct => TimelineKind.home
-        case other => throw new UnsupportedOperationException(s"Unknown product: $other")
-      }
-      val timelineQuery = TimelineQuery(
-        id = inputs.query.getRequiredUserId,
-        kind = timelineKind,
-        options = TimelineQueryOptions(
-          contextualUserId = inputs.query.getOptionalUserId,
-          deviceContext = tls.DeviceContext.empty.copy(
-            userAgent = inputs.query.clientContext.userAgent,
-            clientAppId = inputs.query.clientContext.appId)
-        )
-      )
-
-      val tweetIdToItemCandidateMap: Map[Long, ItemCandidateWithDetails] =
-        inputs.selectedCandidates.flatMap {
-          case item: ItemCandidateWithDetails if item.candidate.id.isInstanceOf[Long] =>
-            Seq((item.candidateIdLong, item))
-          case module: ModuleCandidateWithDetails
-              if module.candidates.headOption.exists(_.candidate.id.isInstanceOf[Long]) =>
-            module.candidates.map(item => (item.candidateIdLong, item))
-          case _ => Seq.empty
-        }.toMap
-
-      val entries = inputs.response.instructions.collect {
-        case AddEntriesTimelineInstruction(entries) =>
-          entries.collect {
-            // includes tweets, tweet previews, and promoted tweets
-            case entry: TweetItem if entry.sortIndex.isDefined => {
-              Seq(
-                buildTweetEntryWithItemIds(
-                  tweetIdToItemCandidateMap(entry.id),
-                  entry.sortIndex.get
-                ))
-            }
-            // tweet conversation modules are flattened to individual tweets in the persistence store
-            case module: TimelineModule
-                if module.sortIndex.isDefined && module.items.headOption.exists(
-                  _.item.isInstanceOf[TweetItem]) =>
-              module.items.map { item =>
-                buildTweetEntryWithItemIds(
-                  tweetIdToItemCandidateMap(item.item.id.asInstanceOf[Long]),
-                  module.sortIndex.get)
-              }
-            case module: TimelineModule
-                if module.sortIndex.isDefined && module.entryNamespace.toString == WhoToFollowCandidateDecorator.EntryNamespaceString =>
-              val userIds = module.items
-                .map(item =>
-                  UpdateTimelinesPersistenceStoreSideEffect.EmptyItemIds.copy(userId =
-                    Some(item.item.id.asInstanceOf[Long])))
-              Seq(
-                EntryWithItemIds(
-                  entityIdType = EntityIdType.WhoToFollow,
-                  sortIndex = module.sortIndex.get,
-                  size = module.items.size.toShort,
-                  itemIds = Some(userIds)
-                ))
-            case module: TimelineModule
-                if module.sortIndex.isDefined && module.entryNamespace.toString == WhoToSubscribeCandidateDecorator.EntryNamespaceString =>
-              val userIds = module.items
-                .map(item =>
-                  UpdateTimelinesPersistenceStoreSideEffect.EmptyItemIds.copy(userId =
-                    Some(item.item.id.asInstanceOf[Long])))
-              Seq(
-                EntryWithItemIds(
-                  entityIdType = EntityIdType.WhoToSubscribe,
-                  sortIndex = module.sortIndex.get,
-                  size = module.items.size.toShort,
-                  itemIds = Some(userIds)
-                ))
-          }.flatten
-        case ShowCoverInstruction(cover) =>
-          Seq(
-            EntryWithItemIds(
-              entityIdType = EntityIdType.Prompt,
-              sortIndex = cover.sortIndex.get,
-              size = 1,
-              itemIds = None
-            )
-          )
-        case ReplaceEntryTimelineInstruction(entry) =>
-          val namespaceLength = TweetItem.TweetEntryNamespace.toString.length
-          Seq(
-            EntryWithItemIds(
-              entityIdType = EntityIdType.Tweet,
-              sortIndex = entry.sortIndex.get,
-              size = 1,
-              itemIds = Some(
-                Seq(
-                  ItemIds(
-                    tweetId =
-                      entry.entryIdToReplace.map(e => e.substring(namespaceLength + 1).toLong),
-                    sourceTweetId = None,
-                    quoteTweetId = None,
-                    sourceAuthorId = None,
-                    quoteAuthorId = None,
-                    inReplyToTweetId = None,
-                    inReplyToAuthorId = None,
-                    semanticCoreId = None,
-                    articleId = None,
-                    hasRelevancePrompt = None,
-                    promptData = None,
-                    tweetScore = None,
-                    entryIdToReplace = entry.entryIdToReplace,
-                    tweetReactiveData = None,
-                    userId = None
-                  )
-                ))
-            )
-          )
-
-      }.flatten
-
-      val response = TimelineResponseV3(
-        clientPlatform = timelineQuery.clientPlatform,
-        servedTime = Time.now,
-        requestType = requestTypeFromQuery(inputs.query),
-        entries = entries)
-
-      Stitch.callFuture(timelineResponseBatchesClient.insertResponse(timelineQuery, response))
-    } else Stitch.Unit
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.8)
-  )
-
-  private def buildTweetEntryWithItemIds(
-    candidate: ItemCandidateWithDetails,
-    sortIndex: Long
-  ): EntryWithItemIds = {
-    val features = candidate.features
-    val sourceAuthorId =
-      if (features.getOrElse(IsRetweetFeature, false)) features.getOrElse(SourceUserIdFeature, None)
-      else features.getOrElse(AuthorIdFeature, None)
-    val quoteAuthorId =
-      if (features.getOrElse(QuotedTweetIdFeature, None).nonEmpty)
-        features.getOrElse(SourceUserIdFeature, None)
-      else None
-    val tweetScore = features.getOrElse(ScoreFeature, None).map { score =>
-      TweetScore.fromThrift(persistence.TweetScore.TweetScoreV1(TweetScoreV1(score)))
-    }
-
-    val itemIds = ItemIds(
-      tweetId = Some(candidate.candidateIdLong),
-      sourceTweetId = features.getOrElse(SourceTweetIdFeature, None),
-      quoteTweetId = features.getOrElse(QuotedTweetIdFeature, None),
-      sourceAuthorId = sourceAuthorId,
-      quoteAuthorId = quoteAuthorId,
-      inReplyToTweetId = features.getOrElse(InReplyToTweetIdFeature, None),
-      inReplyToAuthorId = features.getOrElse(DirectedAtUserIdFeature, None),
-      semanticCoreId = features.getOrElse(SemanticCoreIdFeature, None),
-      articleId = None,
-      hasRelevancePrompt = None,
-      promptData = None,
-      tweetScore = tweetScore,
-      entryIdToReplace = None,
-      tweetReactiveData = None,
-      userId = None
-    )
-
-    val isPreview = features.getOrElse(IsTweetPreviewFeature, default = false)
-    val entityType = if (isPreview) EntityIdType.TweetPreview else EntityIdType.Tweet
-
-    EntryWithItemIds(
-      entityIdType = entityType,
-      sortIndex = sortIndex,
-      size = 1.toShort,
-      itemIds = Some(Seq(itemIds))
-    )
-  }
-
-  private def requestTypeFromQuery(query: PipelineQuery): persistence.RequestType = {
-    val features = query.features.getOrElse(FeatureMap.empty)
-
-    val featureToRequestType = Seq(
-      (PollingFeature, persistence.RequestType.Polling),
-      (GetInitialFeature, persistence.RequestType.Initial),
-      (GetNewerFeature, persistence.RequestType.Newer),
-      (GetMiddleFeature, persistence.RequestType.Middle),
-      (GetOlderFeature, persistence.RequestType.Older)
-    )
-
-    featureToRequestType
-      .collectFirst {
-        case (feature, requestType) if features.getOrElse(feature, false) => requestType
-      }.getOrElse(persistence.RequestType.Other)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request/BUILD.bazel
deleted file mode 100644
index fd35daeeb..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request/BUILD.bazel
+++ /dev/null
@@ -1,18 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/marshaller/request",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/common",
-    ],
-    exports = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/marshaller/request",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/common",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request/DeviceContextUnmarshaller.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request/DeviceContextUnmarshaller.scala
deleted file mode 100644
index b2c6e6347..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request/DeviceContextUnmarshaller.scala
+++ /dev/null
@@ -1,19 +0,0 @@
-package com.twitter.home_mixer.marshaller.request
-
-import com.twitter.home_mixer.model.request.DeviceContext
-import com.twitter.home_mixer.{thriftscala => t}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class DeviceContextUnmarshaller @Inject() () {
-
-  def apply(deviceContext: t.DeviceContext): DeviceContext = {
-    DeviceContext(
-      isPolling = deviceContext.isPolling,
-      requestContext = deviceContext.requestContext,
-      latestControlAvailable = deviceContext.latestControlAvailable,
-      autoplayEnabled = deviceContext.autoplayEnabled
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request/HomeMixerDebugParamsUnmarshaller.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request/HomeMixerDebugParamsUnmarshaller.scala
deleted file mode 100644
index 81a9abf2b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request/HomeMixerDebugParamsUnmarshaller.scala
+++ /dev/null
@@ -1,27 +0,0 @@
-package com.twitter.home_mixer.marshaller.request
-
-import com.twitter.home_mixer.model.request.HomeMixerDebugOptions
-import com.twitter.home_mixer.{thriftscala => t}
-import com.twitter.product_mixer.core.functional_component.marshaller.request.FeatureValueUnmarshaller
-import com.twitter.product_mixer.core.model.marshalling.request.DebugParams
-import com.twitter.util.Time
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class HomeMixerDebugParamsUnmarshaller @Inject() (
-  featureValueUnmarshaller: FeatureValueUnmarshaller) {
-
-  def apply(debugParams: t.DebugParams): DebugParams = {
-    DebugParams(
-      featureOverrides = debugParams.featureOverrides.map { map =>
-        map.mapValues(featureValueUnmarshaller(_)).toMap
-      },
-      debugOptions = debugParams.debugOptions.map { options =>
-        HomeMixerDebugOptions(
-          requestTimeOverride = options.requestTimeOverrideMillis.map(Time.fromMilliseconds)
-        )
-      }
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request/HomeMixerProductContextUnmarshaller.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request/HomeMixerProductContextUnmarshaller.scala
deleted file mode 100644
index ec3a183b9..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request/HomeMixerProductContextUnmarshaller.scala
+++ /dev/null
@@ -1,62 +0,0 @@
-package com.twitter.home_mixer.marshaller.request
-
-import com.twitter.home_mixer.model.request.FollowingProductContext
-import com.twitter.home_mixer.model.request.ForYouProductContext
-import com.twitter.home_mixer.model.request.ListRecommendedUsersProductContext
-import com.twitter.home_mixer.model.request.ListTweetsProductContext
-import com.twitter.home_mixer.model.request.ScoredTweetsProductContext
-import com.twitter.home_mixer.model.request.SubscribedProductContext
-import com.twitter.home_mixer.{thriftscala => t}
-import com.twitter.product_mixer.core.model.marshalling.request.ProductContext
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class HomeMixerProductContextUnmarshaller @Inject() (
-  deviceContextUnmarshaller: DeviceContextUnmarshaller) {
-
-  def apply(productContext: t.ProductContext): ProductContext = productContext match {
-    case t.ProductContext.Following(p) =>
-      FollowingProductContext(
-        deviceContext = p.deviceContext.map(deviceContextUnmarshaller(_)),
-        seenTweetIds = p.seenTweetIds,
-        dspClientContext = p.dspClientContext
-      )
-    case t.ProductContext.ForYou(p) =>
-      ForYouProductContext(
-        deviceContext = p.deviceContext.map(deviceContextUnmarshaller(_)),
-        seenTweetIds = p.seenTweetIds,
-        dspClientContext = p.dspClientContext,
-        pushToHomeTweetId = p.pushToHomeTweetId
-      )
-    case t.ProductContext.ListManagement(p) =>
-      throw new UnsupportedOperationException(s"This product is no longer used")
-    case t.ProductContext.ScoredTweets(p) =>
-      ScoredTweetsProductContext(
-        deviceContext = p.deviceContext.map(deviceContextUnmarshaller(_)),
-        seenTweetIds = p.seenTweetIds,
-        servedTweetIds = p.servedTweetIds,
-        backfillTweetIds = p.backfillTweetIds
-      )
-    case t.ProductContext.ListTweets(p) =>
-      ListTweetsProductContext(
-        listId = p.listId,
-        deviceContext = p.deviceContext.map(deviceContextUnmarshaller(_)),
-        dspClientContext = p.dspClientContext
-      )
-    case t.ProductContext.ListRecommendedUsers(p) =>
-      ListRecommendedUsersProductContext(
-        listId = p.listId,
-        selectedUserIds = p.selectedUserIds,
-        excludedUserIds = p.excludedUserIds,
-        listName = p.listName
-      )
-    case t.ProductContext.Subscribed(p) =>
-      SubscribedProductContext(
-        deviceContext = p.deviceContext.map(deviceContextUnmarshaller(_)),
-        seenTweetIds = p.seenTweetIds,
-      )
-    case t.ProductContext.UnknownUnionField(field) =>
-      throw new UnsupportedOperationException(s"Unknown display context: ${field.field.name}")
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request/HomeMixerProductUnmarshaller.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request/HomeMixerProductUnmarshaller.scala
deleted file mode 100644
index f5d0d002b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request/HomeMixerProductUnmarshaller.scala
+++ /dev/null
@@ -1,29 +0,0 @@
-package com.twitter.home_mixer.marshaller.request
-
-import com.twitter.home_mixer.model.request.FollowingProduct
-import com.twitter.home_mixer.model.request.ForYouProduct
-import com.twitter.home_mixer.model.request.ListRecommendedUsersProduct
-import com.twitter.home_mixer.model.request.ListTweetsProduct
-import com.twitter.home_mixer.model.request.ScoredTweetsProduct
-import com.twitter.home_mixer.model.request.SubscribedProduct
-import com.twitter.home_mixer.{thriftscala => t}
-import com.twitter.product_mixer.core.model.marshalling.request.Product
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class HomeMixerProductUnmarshaller @Inject() () {
-
-  def apply(product: t.Product): Product = product match {
-    case t.Product.Following => FollowingProduct
-    case t.Product.ForYou => ForYouProduct
-    case t.Product.ListManagement =>
-      throw new UnsupportedOperationException(s"This product is no longer used")
-    case t.Product.ScoredTweets => ScoredTweetsProduct
-    case t.Product.ListTweets => ListTweetsProduct
-    case t.Product.ListRecommendedUsers => ListRecommendedUsersProduct
-    case t.Product.Subscribed => SubscribedProduct
-    case t.Product.EnumUnknownProduct(value) =>
-      throw new UnsupportedOperationException(s"Unknown product: $value")
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request/HomeMixerRequestUnmarshaller.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request/HomeMixerRequestUnmarshaller.scala
deleted file mode 100644
index b8894c8b0..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/request/HomeMixerRequestUnmarshaller.scala
+++ /dev/null
@@ -1,30 +0,0 @@
-package com.twitter.home_mixer.marshaller.request
-
-import com.twitter.home_mixer.model.request.HomeMixerRequest
-import com.twitter.home_mixer.{thriftscala => t}
-import com.twitter.product_mixer.core.functional_component.marshaller.request.ClientContextUnmarshaller
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class HomeMixerRequestUnmarshaller @Inject() (
-  clientContextUnmarshaller: ClientContextUnmarshaller,
-  homeProductUnmarshaller: HomeMixerProductUnmarshaller,
-  homeProductContextUnmarshaller: HomeMixerProductContextUnmarshaller,
-  homeDebugParamsUnmarshaller: HomeMixerDebugParamsUnmarshaller) {
-
-  def apply(homeRequest: t.HomeMixerRequest): HomeMixerRequest = {
-    HomeMixerRequest(
-      clientContext = clientContextUnmarshaller(homeRequest.clientContext),
-      product = homeProductUnmarshaller(homeRequest.product),
-      productContext = homeRequest.productContext.map(homeProductContextUnmarshaller(_)),
-      // Avoid de-serializing cursors in the request unmarshaller. The unmarshaller should never
-      // fail, which is often a possibility when trying to de-serialize a cursor. Cursors can also
-      // be product-specific and more appropriately handled in individual product pipelines.
-      serializedRequestCursor = homeRequest.cursor,
-      maxResults = homeRequest.maxResults,
-      debugParams = homeRequest.debugParams.map(homeDebugParamsUnmarshaller(_)),
-      homeRequestParam = false
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timeline_logging/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timeline_logging/BUILD.bazel
deleted file mode 100644
index efcad840b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timeline_logging/BUILD.bazel
+++ /dev/null
@@ -1,13 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/presentation/urt",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/pipeline/candidate/who_to_follow_module",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/response/urt/item",
-        "src/thrift/com/twitter/timelines/timeline_logging:thrift-scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timeline_logging/PromotedTweetDetailsMarshaller.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timeline_logging/PromotedTweetDetailsMarshaller.scala
deleted file mode 100644
index d913f8d64..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timeline_logging/PromotedTweetDetailsMarshaller.scala
+++ /dev/null
@@ -1,15 +0,0 @@
-package com.twitter.home_mixer.marshaller.timeline_logging
-
-import com.twitter.product_mixer.core.model.marshalling.response.urt.item.tweet.TweetItem
-import com.twitter.timelines.timeline_logging.{thriftscala => thriftlog}
-
-object PromotedTweetDetailsMarshaller {
-
-  def apply(entry: TweetItem, position: Int): thriftlog.PromotedTweetDetails = {
-    thriftlog.PromotedTweetDetails(
-      advertiserId = Some(entry.promotedMetadata.map(_.advertiserId).getOrElse(0L)),
-      insertPosition = Some(position),
-      impressionId = entry.promotedMetadata.flatMap(_.impressionString)
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timeline_logging/TweetDetailsMarshaller.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timeline_logging/TweetDetailsMarshaller.scala
deleted file mode 100644
index 8e1c475d5..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timeline_logging/TweetDetailsMarshaller.scala
+++ /dev/null
@@ -1,47 +0,0 @@
-package com.twitter.home_mixer.marshaller.timeline_logging
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.product_mixer.component_library.model.presentation.urt.UrtItemPresentation
-import com.twitter.product_mixer.component_library.model.presentation.urt.UrtModulePresentation
-import com.twitter.product_mixer.core.functional_component.marshaller.response.urt.metadata.GeneralContextTypeMarshaller
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.model.marshalling.response.urt.item.tweet.TweetItem
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.ConversationGeneralContextType
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.GeneralContext
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.TopicContext
-import com.twitter.timelines.service.{thriftscala => tst}
-import com.twitter.timelines.timeline_logging.{thriftscala => thriftlog}
-
-object TweetDetailsMarshaller {
-
-  private val generalContextTypeMarshaller = new GeneralContextTypeMarshaller()
-
-  def apply(entry: TweetItem, candidate: CandidateWithDetails): thriftlog.TweetDetails = {
-    val socialContext = candidate.presentation.flatMap {
-      case _ @UrtItemPresentation(timelineItem: TweetItem, _) => timelineItem.socialContext
-      case _ @UrtModulePresentation(timelineModule) =>
-        timelineModule.items.head.item match {
-          case timelineItem: TweetItem => timelineItem.socialContext
-          case _ => Some(ConversationGeneralContextType)
-        }
-    }
-
-    val socialContextType = socialContext match {
-      case Some(GeneralContext(contextType, _, _, _, _)) =>
-        Some(generalContextTypeMarshaller(contextType).value.toShort)
-      case Some(TopicContext(_, _)) => Some(tst.ContextType.Topic.value.toShort)
-      case _ => None
-    }
-
-    thriftlog.TweetDetails(
-      sourceTweetId = candidate.features.getOrElse(SourceTweetIdFeature, None),
-      socialContextType = socialContextType,
-      suggestType = candidate.features.getOrElse(SuggestTypeFeature, None).map(_.name),
-      authorId = candidate.features.getOrElse(AuthorIdFeature, None),
-      sourceAuthorId = candidate.features.getOrElse(SourceUserIdFeature, None)
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timeline_logging/WhoToFollowDetailsMarshaller.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timeline_logging/WhoToFollowDetailsMarshaller.scala
deleted file mode 100644
index 4c0b4dd1b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timeline_logging/WhoToFollowDetailsMarshaller.scala
+++ /dev/null
@@ -1,15 +0,0 @@
-package com.twitter.home_mixer.marshaller.timeline_logging
-
-import com.twitter.product_mixer.core.model.common.presentation.ItemCandidateWithDetails
-import com.twitter.product_mixer.core.model.marshalling.response.urt.item.user.UserItem
-import com.twitter.timelines.timeline_logging.{thriftscala => thriftlog}
-
-object WhoToFollowDetailsMarshaller {
-
-  def apply(entry: UserItem, candidate: ItemCandidateWithDetails): thriftlog.WhoToFollowDetails =
-    thriftlog.WhoToFollowDetails(
-      enableReactiveBlending = entry.enableReactiveBlending,
-      impressionId = entry.promotedMetadata.flatMap(_.impressionString),
-      advertiserId = entry.promotedMetadata.map(_.advertiserId)
-    )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/BUILD.bazel
deleted file mode 100644
index ebf305ead..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/BUILD.bazel
+++ /dev/null
@@ -1,11 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/cursor",
-        "src/thrift/com/twitter/timelineservice:thrift-scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/ChronologicalCursorMarshaller.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/ChronologicalCursorMarshaller.scala
deleted file mode 100644
index 40e25a8ab..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/ChronologicalCursorMarshaller.scala
+++ /dev/null
@@ -1,20 +0,0 @@
-package com.twitter.home_mixer.marshaller.timelines
-
-import com.twitter.product_mixer.component_library.model.cursor.UrtOrderedCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.BottomCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.GapCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.TopCursor
-import com.twitter.timelines.service.{thriftscala => t}
-
-object ChronologicalCursorMarshaller {
-
-  def apply(cursor: UrtOrderedCursor): Option[t.ChronologicalCursor] = {
-    cursor.cursorType match {
-      case Some(TopCursor) => Some(t.ChronologicalCursor(bottom = cursor.id))
-      case Some(BottomCursor) => Some(t.ChronologicalCursor(top = cursor.id))
-      case Some(GapCursor) =>
-        Some(t.ChronologicalCursor(top = cursor.id, bottom = cursor.gapBoundaryId))
-      case _ => None
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/ChronologicalCursorUnmarshaller.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/ChronologicalCursorUnmarshaller.scala
deleted file mode 100644
index 739c490ea..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/ChronologicalCursorUnmarshaller.scala
+++ /dev/null
@@ -1,26 +0,0 @@
-package com.twitter.home_mixer.marshaller.timelines
-
-import com.twitter.product_mixer.component_library.model.cursor.UrtOrderedCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.BottomCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.GapCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.TopCursor
-import com.twitter.timelines.service.{thriftscala => t}
-
-object ChronologicalCursorUnmarshaller {
-
-  def apply(requestCursor: t.RequestCursor): Option[UrtOrderedCursor] = {
-    requestCursor match {
-      case t.RequestCursor.ChronologicalCursor(cursor) =>
-        (cursor.top, cursor.bottom) match {
-          case (Some(top), None) =>
-            Some(UrtOrderedCursor(top, cursor.top, Some(BottomCursor)))
-          case (None, Some(bottom)) =>
-            Some(UrtOrderedCursor(bottom, cursor.bottom, Some(TopCursor)))
-          case (Some(top), Some(bottom)) =>
-            Some(UrtOrderedCursor(top, cursor.top, Some(GapCursor), cursor.bottom))
-          case _ => None
-        }
-      case _ => None
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/DeviceContextMarshaller.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/DeviceContextMarshaller.scala
deleted file mode 100644
index 097d8dea4..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/DeviceContextMarshaller.scala
+++ /dev/null
@@ -1,34 +0,0 @@
-package com.twitter.home_mixer.marshaller.timelines
-
-import com.twitter.home_mixer.model.request.DeviceContext
-import com.twitter.product_mixer.core.model.marshalling.request.ClientContext
-import com.twitter.timelineservice.{thriftscala => t}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class DeviceContextMarshaller @Inject() () {
-
-  def apply(deviceContext: DeviceContext, clientContext: ClientContext): t.DeviceContext = {
-    t.DeviceContext(
-      countryCode = clientContext.countryCode,
-      languageCode = clientContext.languageCode,
-      clientAppId = clientContext.appId,
-      ipAddress = clientContext.ipAddress,
-      guestId = clientContext.guestId,
-      userAgent = clientContext.userAgent,
-      deviceId = clientContext.deviceId,
-      isPolling = deviceContext.isPolling,
-      requestContext = deviceContext.requestContext,
-      referrer = None,
-      tfeAuthHeader = None,
-      mobileDeviceId = clientContext.mobileDeviceId,
-      isSessionStart = None,
-      latestControlAvailable = deviceContext.latestControlAvailable,
-      guestIdMarketing = clientContext.guestIdMarketing,
-      isInternalOrTwoffice = clientContext.isTwoffice,
-      guestIdAds = clientContext.guestIdAds,
-      isUrtRequest = Some(true)
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/RecommendedUsersCursorUnmarshaller.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/RecommendedUsersCursorUnmarshaller.scala
deleted file mode 100644
index 693684558..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/RecommendedUsersCursorUnmarshaller.scala
+++ /dev/null
@@ -1,20 +0,0 @@
-package com.twitter.home_mixer.marshaller.timelines
-
-import com.twitter.product_mixer.component_library.model.cursor.UrtUnorderedExcludeIdsCursor
-import com.twitter.timelines.service.{thriftscala => t}
-import com.twitter.util.Time
-
-object RecommendedUsersCursorUnmarshaller {
-
-  def apply(requestCursor: t.RequestCursor): Option[UrtUnorderedExcludeIdsCursor] = {
-    requestCursor match {
-      case t.RequestCursor.RecommendedUsersCursor(cursor) =>
-        Some(
-          UrtUnorderedExcludeIdsCursor(
-            initialSortIndex = cursor.minSortIndex.getOrElse(Time.now.inMilliseconds),
-            excludedIds = cursor.previouslyRecommendedUserIds
-          ))
-      case _ => None
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/TimelineServiceCursorMarshaller.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/TimelineServiceCursorMarshaller.scala
deleted file mode 100644
index cbc956ad4..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/TimelineServiceCursorMarshaller.scala
+++ /dev/null
@@ -1,21 +0,0 @@
-package com.twitter.home_mixer.marshaller.timelines
-
-import com.twitter.product_mixer.component_library.model.cursor.UrtOrderedCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.BottomCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.GapCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.TopCursor
-import com.twitter.timelineservice.{thriftscala => t}
-
-object TimelineServiceCursorMarshaller {
-
-  def apply(cursor: UrtOrderedCursor): Option[t.Cursor2] = {
-    val id = cursor.id.map(_.toString)
-    val gapBoundaryId = cursor.gapBoundaryId.map(_.toString)
-    cursor.cursorType match {
-      case Some(TopCursor) => Some(t.Cursor2(bottom = id))
-      case Some(BottomCursor) => Some(t.Cursor2(top = id))
-      case Some(GapCursor) => Some(t.Cursor2(top = id, bottom = gapBoundaryId))
-      case _ => None
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/TopicContextFunctionalityTypeUnmarshaller.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/TopicContextFunctionalityTypeUnmarshaller.scala
deleted file mode 100644
index f542cd535..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines/TopicContextFunctionalityTypeUnmarshaller.scala
+++ /dev/null
@@ -1,22 +0,0 @@
-package com.twitter.home_mixer.marshaller.timelines
-
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.BasicTopicContextFunctionalityType
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RecWithEducationTopicContextFunctionalityType
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RecommendationTopicContextFunctionalityType
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.TopicContextFunctionalityType
-import com.twitter.timelines.render.{thriftscala => urt}
-
-object TopicContextFunctionalityTypeUnmarshaller {
-
-  def apply(
-    topicContextFunctionalityType: urt.TopicContextFunctionalityType
-  ): TopicContextFunctionalityType = topicContextFunctionalityType match {
-    case urt.TopicContextFunctionalityType.Basic => BasicTopicContextFunctionalityType
-    case urt.TopicContextFunctionalityType.Recommendation =>
-      RecommendationTopicContextFunctionalityType
-    case urt.TopicContextFunctionalityType.RecWithEducation =>
-      RecWithEducationTopicContextFunctionalityType
-    case urt.TopicContextFunctionalityType.EnumUnknownTopicContextFunctionalityType(field) =>
-      throw new UnsupportedOperationException(s"Unknown topic context functionality type: $field")
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/BUILD.bazel
deleted file mode 100644
index 65ece62a3..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/BUILD.bazel
+++ /dev/null
@@ -1,42 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/candidate_source",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/query/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/premarshaller/urt/builder",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/feature/datarecord",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-        "src/java/com/twitter/ml/api:api-base",
-        "src/java/com/twitter/ml/api/constant",
-        "src/scala/com/twitter/ml/api:api-base",
-        "src/scala/com/twitter/timelines/prediction/features/common",
-        "src/scala/com/twitter/timelines/prediction/features/recap",
-        "src/scala/com/twitter/timelines/prediction/features/request_context",
-        "src/thrift/com/twitter/escherbird:tweet-annotation-scala",
-        "src/thrift/com/twitter/search:earlybird-scala",
-        "src/thrift/com/twitter/timelines/conversation_features:conversation_features-scala",
-        "src/thrift/com/twitter/timelines/impression:thrift-scala",
-        "src/thrift/com/twitter/timelines/impression_bloom_filter:thrift-scala",
-        "src/thrift/com/twitter/timelinescorer/common/scoredtweetcandidate:thrift-scala",
-        "src/thrift/com/twitter/tweetypie:tweet-scala",
-        "timelinemixer/common/src/main/scala/com/twitter/timelinemixer/clients/manhattan",
-        "timelinemixer/common/src/main/scala/com/twitter/timelinemixer/clients/persistence",
-        "timelinemixer/server/src/main/scala/com/twitter/timelinemixer/injection/model/candidate",
-        "topic-social-proof/server/src/main/thrift:thrift-scala",
-        "tweetconvosvc/common/src/main/thrift/com/twitter/tweetconvosvc/tweet_ancestor:thrift-scala",
-    ],
-    exports = [
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/cursor",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/query/ads",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/feature/datarecord",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-        "src/thrift/com/twitter/timelines/impression:thrift-scala",
-        "src/thrift/com/twitter/timelinescorer/common/scoredtweetcandidate:thrift-scala",
-        "tweetconvosvc/common/src/main/thrift/com/twitter/tweetconvosvc/tweet_ancestor:thrift-scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/ClearCacheIncludeInstruction.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/ClearCacheIncludeInstruction.scala
deleted file mode 100644
index 85154e55b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/ClearCacheIncludeInstruction.scala
+++ /dev/null
@@ -1,43 +0,0 @@
-package com.twitter.home_mixer.model
-
-import com.twitter.home_mixer.model.request.DeviceContext.RequestContext
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.IncludeInstruction
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineEntry
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineModule
-import com.twitter.product_mixer.core.model.marshalling.response.urt.item.tweet.TweetItem
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelines.configapi.FSBoundedParam
-import com.twitter.timelines.configapi.FSParam
-
-/**
- * Include a clear cache timeline instruction when we satisfy these criteria:
- * - Request Provenance is "pull to refresh"
- * - Atleast N non-ad tweet entries in the response
- *
- * This is to ensure that we have sufficient new content to justify jumping users to the
- * top of the new timelines response and don't add unnecessary load to backend systems
- */
-case class ClearCacheIncludeInstruction(
-  enableParam: FSParam[Boolean],
-  minEntriesParam: FSBoundedParam[Int])
-    extends IncludeInstruction[PipelineQuery with HasDeviceContext] {
-
-  override def apply(
-    query: PipelineQuery with HasDeviceContext,
-    entries: Seq[TimelineEntry]
-  ): Boolean = {
-    val enabled = query.params(enableParam)
-
-    val ptr =
-      query.deviceContext.flatMap(_.requestContextValue).contains(RequestContext.PullToRefresh)
-
-    val minTweets = query.params(minEntriesParam) <= entries.collect {
-      case item: TweetItem if item.promotedMetadata.isEmpty => 1
-      case module: TimelineModule if module.items.head.item.isInstanceOf[TweetItem] =>
-        module.items.size
-    }.sum
-
-    enabled && ptr && minTweets
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/ContentFeatures.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/ContentFeatures.scala
deleted file mode 100644
index f141d67d1..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/ContentFeatures.scala
+++ /dev/null
@@ -1,144 +0,0 @@
-package com.twitter.home_mixer.model
-
-import com.twitter.escherbird.{thriftscala => esb}
-import com.twitter.search.common.features.{thriftscala => sc}
-import com.twitter.tweetypie.{thriftscala => tp}
-
-object ContentFeatures {
-  val Empty: ContentFeatures = ContentFeatures(
-    0.toShort,
-    false,
-    0.toShort,
-    0.toShort,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None,
-    None
-  )
-
-  def fromThrift(ebFeatures: sc.ThriftTweetFeatures): ContentFeatures =
-    ContentFeatures(
-      length = ebFeatures.tweetLength.getOrElse(0).toShort,
-      hasQuestion = ebFeatures.hasQuestion.getOrElse(false),
-      numCaps = ebFeatures.numCaps.getOrElse(0).toShort,
-      numWhiteSpaces = ebFeatures.numWhitespaces.getOrElse(0).toShort,
-      numNewlines = ebFeatures.numNewlines,
-      videoDurationMs = ebFeatures.videoDurationMs,
-      bitRate = ebFeatures.bitRate,
-      aspectRatioNum = ebFeatures.aspectRatioNum,
-      aspectRatioDen = ebFeatures.aspectRatioDen,
-      widths = ebFeatures.widths.map(_.map(_.toShort)),
-      heights = ebFeatures.heights.map(_.map(_.toShort)),
-      resizeMethods = ebFeatures.resizeMethods.map(_.map(_.toShort)),
-      numMediaTags = ebFeatures.numMediaTags.map(_.toShort),
-      mediaTagScreenNames = ebFeatures.mediaTagScreenNames,
-      emojiTokens = ebFeatures.emojiTokens.map(_.toSet),
-      emoticonTokens = ebFeatures.emoticonTokens.map(_.toSet),
-      faceAreas = ebFeatures.faceAreas,
-      dominantColorRed = ebFeatures.dominantColorRed,
-      dominantColorBlue = ebFeatures.dominantColorBlue,
-      dominantColorGreen = ebFeatures.dominantColorGreen,
-      numColors = ebFeatures.numColors.map(_.toShort),
-      stickerIds = ebFeatures.stickerIds,
-      mediaOriginProviders = ebFeatures.mediaOriginProviders,
-      isManaged = ebFeatures.isManaged,
-      is360 = ebFeatures.is360,
-      viewCount = ebFeatures.viewCount,
-      isMonetizable = ebFeatures.isMonetizable,
-      isEmbeddable = ebFeatures.isEmbeddable,
-      hasSelectedPreviewImage = ebFeatures.hasSelectedPreviewImage,
-      hasTitle = ebFeatures.hasTitle,
-      hasDescription = ebFeatures.hasDescription,
-      hasVisitSiteCallToAction = ebFeatures.hasVisitSiteCallToAction,
-      hasAppInstallCallToAction = ebFeatures.hasAppInstallCallToAction,
-      hasWatchNowCallToAction = ebFeatures.hasWatchNowCallToAction,
-      dominantColorPercentage = ebFeatures.dominantColorPercentage,
-      posUnigrams = ebFeatures.posUnigrams.map(_.toSet),
-      posBigrams = ebFeatures.posBigrams.map(_.toSet),
-      semanticCoreAnnotations = ebFeatures.semanticCoreAnnotations,
-      tokens = ebFeatures.textTokens.map(_.toSeq),
-      conversationControl = ebFeatures.conversationControl,
-      // media and selfThreadMetadata not carried by ThriftTweetFeatures
-      media = None,
-      selfThreadMetadata = None
-    )
-}
-
-case class ContentFeatures(
-  length: Short,
-  hasQuestion: Boolean,
-  numCaps: Short,
-  numWhiteSpaces: Short,
-  numNewlines: Option[Short],
-  videoDurationMs: Option[Int],
-  bitRate: Option[Int],
-  aspectRatioNum: Option[Short],
-  aspectRatioDen: Option[Short],
-  widths: Option[Seq[Short]],
-  heights: Option[Seq[Short]],
-  resizeMethods: Option[Seq[Short]],
-  numMediaTags: Option[Short],
-  mediaTagScreenNames: Option[Seq[String]],
-  emojiTokens: Option[Set[String]],
-  emoticonTokens: Option[Set[String]],
-  faceAreas: Option[Seq[Int]],
-  dominantColorRed: Option[Short],
-  dominantColorBlue: Option[Short],
-  dominantColorGreen: Option[Short],
-  numColors: Option[Short],
-  stickerIds: Option[Seq[Long]],
-  mediaOriginProviders: Option[Seq[String]],
-  isManaged: Option[Boolean],
-  is360: Option[Boolean],
-  viewCount: Option[Long],
-  isMonetizable: Option[Boolean],
-  isEmbeddable: Option[Boolean],
-  hasSelectedPreviewImage: Option[Boolean],
-  hasTitle: Option[Boolean],
-  hasDescription: Option[Boolean],
-  hasVisitSiteCallToAction: Option[Boolean],
-  hasAppInstallCallToAction: Option[Boolean],
-  hasWatchNowCallToAction: Option[Boolean],
-  media: Option[Seq[tp.MediaEntity]],
-  dominantColorPercentage: Option[Double],
-  posUnigrams: Option[Set[String]],
-  posBigrams: Option[Set[String]],
-  semanticCoreAnnotations: Option[Seq[esb.TweetEntityAnnotation]],
-  selfThreadMetadata: Option[tp.SelfThreadMetadata],
-  tokens: Option[Seq[String]],
-  conversationControl: Option[tp.ConversationControl],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/GapIncludeInstruction.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/GapIncludeInstruction.scala
deleted file mode 100644
index c11631fc8..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/GapIncludeInstruction.scala
+++ /dev/null
@@ -1,63 +0,0 @@
-package com.twitter.home_mixer.model
-
-import com.twitter.home_mixer.functional_component.candidate_source.EarlybirdBottomTweetFeature
-import com.twitter.home_mixer.functional_component.candidate_source.EarlybirdResponseTruncatedFeature
-import com.twitter.product_mixer.component_library.model.cursor.UrtOrderedCursor
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.IncludeInstruction
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineEntry
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineModule
-import com.twitter.product_mixer.core.model.marshalling.response.urt.item.tweet.TweetItem
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.GapCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.TopCursor
-import com.twitter.product_mixer.core.pipeline.HasPipelineCursor
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-
-/**
- * Determine whether to include a Gap Cursor in the response based on whether a timeline
- * is truncated because it has more entries than the max response size.
- * There are two ways this can happen:
- *  1) There are unused entries in Earlybird. This is determined by a flag returned from Earlybird.
- *     We respect the Earlybird flag only if there are some entries after deduping and filtering
- *     to ensure that we do not get stuck repeatedly serving gaps which lead to no tweets.
- *  2) Ads injection can take the response size over the max count. Goldfinch truncates tweet
- *     entries in this case. We can check if the bottom tweet from Earlybird is in the response to
- *     determine if all Earlybird tweets have been used.
- *
- * While scrolling down to get older tweets (BottomCursor), responses will generally be
- * truncated, but we don't want to render a gap cursor there, so we need to ensure we only
- * apply the truncation check to newer (TopCursor) or middle (GapCursor) requests.
- *
- * We return either a Gap Cursor or a Bottom Cursor, but not both, so the include instruction
- * for Bottom should be the inverse of Gap.
- */
-object GapIncludeInstruction
-    extends IncludeInstruction[PipelineQuery with HasPipelineCursor[UrtOrderedCursor]] {
-
-  override def apply(
-    query: PipelineQuery with HasPipelineCursor[UrtOrderedCursor],
-    entries: Seq[TimelineEntry]
-  ): Boolean = {
-    val wasTruncated = query.features.exists(_.getOrElse(EarlybirdResponseTruncatedFeature, false))
-
-    // Get oldest tweet or tweets within oldest conversation module
-    val tweetEntries = entries.view.reverse
-      .collectFirst {
-        case item: TweetItem if item.promotedMetadata.isEmpty => Seq(item.id.toString)
-        case module: TimelineModule if module.items.head.item.isInstanceOf[TweetItem] =>
-          module.items.map(_.item.id.toString)
-      }.toSeq.flatten
-
-    val bottomCursor =
-      query.features.flatMap(_.getOrElse(EarlybirdBottomTweetFeature, None)).map(_.toString)
-
-    // Ads truncation happened if we have at least max count entries and bottom tweet is missing
-    val adsTruncation = query.requestedMaxResults.exists(_ <= entries.size) &&
-      !bottomCursor.exists(tweetEntries.contains)
-
-    query.pipelineCursor.exists(_.cursorType match {
-      case Some(TopCursor) | Some(GapCursor) =>
-        (wasTruncated && tweetEntries.nonEmpty) || adsTruncation
-      case _ => false
-    })
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/HomeAdsQuery.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/HomeAdsQuery.scala
deleted file mode 100644
index bfbe722fc..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/HomeAdsQuery.scala
+++ /dev/null
@@ -1,42 +0,0 @@
-package com.twitter.home_mixer.model
-
-import com.twitter.adserver.thriftscala.RequestTriggerType
-import com.twitter.home_mixer.model.HomeFeatures.GetInitialFeature
-import com.twitter.home_mixer.model.HomeFeatures.GetNewerFeature
-import com.twitter.home_mixer.model.HomeFeatures.GetOlderFeature
-import com.twitter.home_mixer.model.HomeFeatures.PollingFeature
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.product_mixer.component_library.model.cursor.UrtOrderedCursor
-import com.twitter.product_mixer.component_library.model.query.ads.AdsQuery
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.pipeline.HasPipelineCursor
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-
-/**
- * These are for feeds needed for ads only.
- */
-trait HomeAdsQuery
-    extends AdsQuery
-    with PipelineQuery
-    with HasDeviceContext
-    with HasPipelineCursor[UrtOrderedCursor] {
-
-  private val featureToRequestTriggerType = Seq(
-    (GetInitialFeature, RequestTriggerType.Initial),
-    (GetNewerFeature, RequestTriggerType.Scroll),
-    (GetOlderFeature, RequestTriggerType.Scroll),
-    (PollingFeature, RequestTriggerType.AutoRefresh)
-  )
-
-  override val autoplayEnabled: Option[Boolean] = deviceContext.flatMap(_.autoplayEnabled)
-
-  override def requestTriggerType: Option[RequestTriggerType] = {
-    val features = this.features.getOrElse(FeatureMap.empty)
-
-    featureToRequestTriggerType.collectFirst {
-      case (feature, requestType) if features.get(feature) => Some(requestType)
-    }.flatten
-  }
-
-  override val disableNsfwAvoidance: Option[Boolean] = Some(true)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/HomeFeatures.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/HomeFeatures.scala
deleted file mode 100644
index fe085b1f9..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/HomeFeatures.scala
+++ /dev/null
@@ -1,325 +0,0 @@
-package com.twitter.home_mixer.model
-
-import com.twitter.core_workflows.user_model.{thriftscala => um}
-import com.twitter.dal.personal_data.{thriftjava => pd}
-import com.twitter.gizmoduck.{thriftscala => gt}
-import com.twitter.home_mixer.{thriftscala => hmt}
-import com.twitter.ml.api.constant.SharedFeatures
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.BoolDataRecordCompatible
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordFeature
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordOptionalFeature
-import com.twitter.product_mixer.core.feature.datarecord.DoubleDataRecordCompatible
-import com.twitter.product_mixer.core.feature.datarecord.LongDiscreteDataRecordCompatible
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.TopicContextFunctionalityType
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.search.common.features.{thriftscala => sc}
-import com.twitter.search.earlybird.{thriftscala => eb}
-import com.twitter.timelinemixer.clients.manhattan.DismissInfo
-import com.twitter.timelinemixer.clients.persistence.TimelineResponseV3
-import com.twitter.timelinemixer.injection.model.candidate.AudioSpaceMetaData
-import com.twitter.timelines.conversation_features.v1.thriftscala.ConversationFeatures
-import com.twitter.timelines.impression.{thriftscala => imp}
-import com.twitter.timelines.impressionbloomfilter.{thriftscala => blm}
-import com.twitter.timelines.model.UserId
-import com.twitter.timelines.prediction.features.common.TimelinesSharedFeatures
-import com.twitter.timelines.prediction.features.engagement_features.EngagementDataRecordFeatures
-import com.twitter.timelines.prediction.features.recap.RecapFeatures
-import com.twitter.timelines.prediction.features.request_context.RequestContextFeatures
-import com.twitter.timelines.service.{thriftscala => tst}
-import com.twitter.timelineservice.model.FeedbackEntry
-import com.twitter.timelineservice.suggests.logging.candidate_tweet_source_id.{thriftscala => cts}
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-import com.twitter.tsp.{thriftscala => tsp}
-import com.twitter.tweetconvosvc.tweet_ancestor.{thriftscala => ta}
-import com.twitter.util.Time
-
-object HomeFeatures {
-  // Candidate Features
-  object AncestorsFeature extends Feature[TweetCandidate, Seq[ta.TweetAncestor]]
-  object AudioSpaceMetaDataFeature extends Feature[TweetCandidate, Option[AudioSpaceMetaData]]
-  object TwitterListIdFeature extends Feature[TweetCandidate, Option[Long]]
-
-  /**
-   * For Retweets, this should refer to the retweeting user. Use [[SourceUserIdFeature]] if you want to know
-   * who created the Tweet that was retweeted.
-   */
-  object AuthorIdFeature
-      extends DataRecordOptionalFeature[TweetCandidate, Long]
-      with LongDiscreteDataRecordCompatible {
-    override val featureName: String = SharedFeatures.AUTHOR_ID.getFeatureName
-    override val personalDataTypes: Set[pd.PersonalDataType] = Set(pd.PersonalDataType.UserId)
-  }
-
-  object AuthorIsBlueVerifiedFeature extends Feature[TweetCandidate, Boolean]
-  object AuthorIsGoldVerifiedFeature extends Feature[TweetCandidate, Boolean]
-  object AuthorIsGrayVerifiedFeature extends Feature[TweetCandidate, Boolean]
-  object AuthorIsLegacyVerifiedFeature extends Feature[TweetCandidate, Boolean]
-  object AuthorIsCreatorFeature extends Feature[TweetCandidate, Boolean]
-  object AuthorIsProtectedFeature extends Feature[TweetCandidate, Boolean]
-
-  object AuthoredByContextualUserFeature extends Feature[TweetCandidate, Boolean]
-  object CachedCandidatePipelineIdentifierFeature extends Feature[TweetCandidate, Option[String]]
-  object CandidateSourceIdFeature
-      extends Feature[TweetCandidate, Option[cts.CandidateTweetSourceId]]
-  object ConversationFeature extends Feature[TweetCandidate, Option[ConversationFeatures]]
-
-  /**
-   * This field should be set to the focal Tweet's tweetId for all tweets which are expected to
-   * be rendered in the same convo module. For non-convo module Tweets, this will be
-   * set to None. Note this is different from how TweetyPie defines ConversationId which is defined
-   * on all Tweets and points to the root tweet. This feature is used for grouping convo modules together.
-   */
-  object ConversationModuleFocalTweetIdFeature extends Feature[TweetCandidate, Option[Long]]
-
-  /**
-   * This field should always be set to the root Tweet in a conversation for all Tweets. For replies, this will
-   * point back to the root Tweet. For non-replies, this will be the candidate's Tweet id. This is consistent with
-   * the TweetyPie definition of ConversationModuleId.
-   */
-  object ConversationModuleIdFeature extends Feature[TweetCandidate, Option[Long]]
-  object DirectedAtUserIdFeature extends Feature[TweetCandidate, Option[Long]]
-  object EarlybirdFeature extends Feature[TweetCandidate, Option[sc.ThriftTweetFeatures]]
-  object EarlybirdScoreFeature extends Feature[TweetCandidate, Option[Double]]
-  object EarlybirdSearchResultFeature extends Feature[TweetCandidate, Option[eb.ThriftSearchResult]]
-  object EntityTokenFeature extends Feature[TweetCandidate, Option[String]]
-  object ExclusiveConversationAuthorIdFeature extends Feature[TweetCandidate, Option[Long]]
-  object FavoritedByCountFeature
-      extends DataRecordFeature[TweetCandidate, Double]
-      with DoubleDataRecordCompatible {
-    override val featureName: String =
-      EngagementDataRecordFeatures.InNetworkFavoritesCount.getFeatureName
-    override val personalDataTypes: Set[pd.PersonalDataType] =
-      Set(pd.PersonalDataType.CountOfPrivateLikes, pd.PersonalDataType.CountOfPublicLikes)
-  }
-  object FavoritedByUserIdsFeature extends Feature[TweetCandidate, Seq[Long]]
-  object FeedbackHistoryFeature extends Feature[TweetCandidate, Seq[FeedbackEntry]]
-  object RetweetedByCountFeature
-      extends DataRecordFeature[TweetCandidate, Double]
-      with DoubleDataRecordCompatible {
-    override val featureName: String =
-      EngagementDataRecordFeatures.InNetworkRetweetsCount.getFeatureName
-    override val personalDataTypes: Set[pd.PersonalDataType] =
-      Set(pd.PersonalDataType.CountOfPrivateRetweets, pd.PersonalDataType.CountOfPublicRetweets)
-  }
-  object RetweetedByEngagerIdsFeature extends Feature[TweetCandidate, Seq[Long]]
-  object RepliedByCountFeature
-      extends DataRecordFeature[TweetCandidate, Double]
-      with DoubleDataRecordCompatible {
-    override val featureName: String =
-      EngagementDataRecordFeatures.InNetworkRepliesCount.getFeatureName
-    override val personalDataTypes: Set[pd.PersonalDataType] =
-      Set(pd.PersonalDataType.CountOfPrivateReplies, pd.PersonalDataType.CountOfPublicReplies)
-  }
-  object RepliedByEngagerIdsFeature extends Feature[TweetCandidate, Seq[Long]]
-  object FollowedByUserIdsFeature extends Feature[TweetCandidate, Seq[Long]]
-
-  object TopicIdSocialContextFeature extends Feature[TweetCandidate, Option[Long]]
-  object TopicContextFunctionalityTypeFeature
-      extends Feature[TweetCandidate, Option[TopicContextFunctionalityType]]
-  object FromInNetworkSourceFeature extends Feature[TweetCandidate, Boolean]
-
-  object FullScoringSucceededFeature extends Feature[TweetCandidate, Boolean]
-  object HasDisplayedTextFeature extends Feature[TweetCandidate, Boolean]
-  object InReplyToTweetIdFeature extends Feature[TweetCandidate, Option[Long]]
-  object InReplyToUserIdFeature extends Feature[TweetCandidate, Option[Long]]
-  object IsAncestorCandidateFeature extends Feature[TweetCandidate, Boolean]
-  object IsExtendedReplyFeature
-      extends DataRecordFeature[TweetCandidate, Boolean]
-      with BoolDataRecordCompatible {
-    override val featureName: String = RecapFeatures.IS_EXTENDED_REPLY.getFeatureName
-    override val personalDataTypes: Set[pd.PersonalDataType] = Set.empty
-  }
-  object IsRandomTweetFeature
-      extends DataRecordFeature[TweetCandidate, Boolean]
-      with BoolDataRecordCompatible {
-    override val featureName: String = TimelinesSharedFeatures.IS_RANDOM_TWEET.getFeatureName
-    override val personalDataTypes: Set[pd.PersonalDataType] = Set.empty
-  }
-  object IsReadFromCacheFeature extends Feature[TweetCandidate, Boolean]
-  object IsRetweetFeature extends Feature[TweetCandidate, Boolean]
-  object IsRetweetedReplyFeature extends Feature[TweetCandidate, Boolean]
-  object IsSupportAccountReplyFeature extends Feature[TweetCandidate, Boolean]
-  object LastScoredTimestampMsFeature extends Feature[TweetCandidate, Option[Long]]
-  object NonSelfFavoritedByUserIdsFeature extends Feature[TweetCandidate, Seq[Long]]
-  object NumImagesFeature extends Feature[TweetCandidate, Option[Int]]
-  object OriginalTweetCreationTimeFromSnowflakeFeature extends Feature[TweetCandidate, Option[Time]]
-  object PositionFeature extends Feature[TweetCandidate, Option[Int]]
-  // Internal id generated per prediction service request
-  object PredictionRequestIdFeature extends Feature[TweetCandidate, Option[Long]]
-  object QuotedTweetIdFeature extends Feature[TweetCandidate, Option[Long]]
-  object QuotedUserIdFeature extends Feature[TweetCandidate, Option[Long]]
-  object ScoreFeature extends Feature[TweetCandidate, Option[Double]]
-  object SemanticCoreIdFeature extends Feature[TweetCandidate, Option[Long]]
-  // Key for kafka logging
-  object ServedIdFeature extends Feature[TweetCandidate, Option[Long]]
-  object SimclustersTweetTopKClustersWithScoresFeature
-      extends Feature[TweetCandidate, Map[String, Double]]
-  object SocialContextFeature extends Feature[TweetCandidate, Option[tst.SocialContext]]
-  object SourceTweetIdFeature
-      extends DataRecordOptionalFeature[TweetCandidate, Long]
-      with LongDiscreteDataRecordCompatible {
-    override val featureName: String = TimelinesSharedFeatures.SOURCE_TWEET_ID.getFeatureName
-    override val personalDataTypes: Set[pd.PersonalDataType] = Set(pd.PersonalDataType.TweetId)
-  }
-  object SourceUserIdFeature extends Feature[TweetCandidate, Option[Long]]
-  object StreamToKafkaFeature extends Feature[TweetCandidate, Boolean]
-  object SuggestTypeFeature extends Feature[TweetCandidate, Option[st.SuggestType]]
-  object TSPMetricTagFeature extends Feature[TweetCandidate, Set[tsp.MetricTag]]
-  object TweetLanguageFeature extends Feature[TweetCandidate, Option[String]]
-  object TweetUrlsFeature extends Feature[TweetCandidate, Seq[String]]
-  object VideoDurationMsFeature extends Feature[TweetCandidate, Option[Int]]
-  object ViewerIdFeature
-      extends DataRecordFeature[TweetCandidate, Long]
-      with LongDiscreteDataRecordCompatible {
-    override def featureName: String = SharedFeatures.USER_ID.getFeatureName
-    override def personalDataTypes: Set[pd.PersonalDataType] = Set(pd.PersonalDataType.UserId)
-  }
-  object WeightedModelScoreFeature extends Feature[TweetCandidate, Option[Double]]
-  object MentionUserIdFeature extends Feature[TweetCandidate, Seq[Long]]
-  object MentionScreenNameFeature extends Feature[TweetCandidate, Seq[String]]
-  object HasImageFeature extends Feature[TweetCandidate, Boolean]
-  object HasVideoFeature extends Feature[TweetCandidate, Boolean]
-
-  // Tweetypie VF Features
-  object IsHydratedFeature extends Feature[TweetCandidate, Boolean]
-  object IsNsfwFeature extends Feature[TweetCandidate, Boolean]
-  object QuotedTweetDroppedFeature extends Feature[TweetCandidate, Boolean]
-  // Raw Tweet Text from Tweetypie
-  object TweetTextFeature extends Feature[TweetCandidate, Option[String]]
-
-  object AuthorEnabledPreviewsFeature extends Feature[TweetCandidate, Boolean]
-  object IsTweetPreviewFeature extends Feature[TweetCandidate, Boolean]
-
-  // SGS Features
-  /**
-   * By convention, this is set to true for retweets of non-followed authors
-   * E.g. where somebody the viewer follows retweets a Tweet from somebody the viewer doesn't follow
-   */
-  object InNetworkFeature extends FeatureWithDefaultOnFailure[TweetCandidate, Boolean] {
-    override val defaultValue: Boolean = true
-  }
-
-  // Query Features
-  object AccountAgeFeature extends Feature[PipelineQuery, Option[Time]]
-  object ClientIdFeature
-      extends DataRecordOptionalFeature[PipelineQuery, Long]
-      with LongDiscreteDataRecordCompatible {
-    override def featureName: String = SharedFeatures.CLIENT_ID.getFeatureName
-    override def personalDataTypes: Set[pd.PersonalDataType] = Set(pd.PersonalDataType.ClientType)
-  }
-  object CachedScoredTweetsFeature extends Feature[PipelineQuery, Seq[hmt.ScoredTweet]]
-  object DeviceLanguageFeature extends Feature[PipelineQuery, Option[String]]
-  object DismissInfoFeature
-      extends FeatureWithDefaultOnFailure[PipelineQuery, Map[st.SuggestType, Option[DismissInfo]]] {
-    override def defaultValue: Map[st.SuggestType, Option[DismissInfo]] = Map.empty
-  }
-  object FollowingLastNonPollingTimeFeature extends Feature[PipelineQuery, Option[Time]]
-  object GetInitialFeature
-      extends DataRecordFeature[PipelineQuery, Boolean]
-      with BoolDataRecordCompatible {
-    override def featureName: String = RequestContextFeatures.IS_GET_INITIAL.getFeatureName
-    override def personalDataTypes: Set[pd.PersonalDataType] = Set.empty
-  }
-  object GetMiddleFeature
-      extends DataRecordFeature[PipelineQuery, Boolean]
-      with BoolDataRecordCompatible {
-    override def featureName: String = RequestContextFeatures.IS_GET_MIDDLE.getFeatureName
-    override def personalDataTypes: Set[pd.PersonalDataType] = Set.empty
-  }
-  object GetNewerFeature
-      extends DataRecordFeature[PipelineQuery, Boolean]
-      with BoolDataRecordCompatible {
-    override def featureName: String = RequestContextFeatures.IS_GET_NEWER.getFeatureName
-    override def personalDataTypes: Set[pd.PersonalDataType] = Set.empty
-  }
-  object GetOlderFeature
-      extends DataRecordFeature[PipelineQuery, Boolean]
-      with BoolDataRecordCompatible {
-    override def featureName: String = RequestContextFeatures.IS_GET_OLDER.getFeatureName
-    override def personalDataTypes: Set[pd.PersonalDataType] = Set.empty
-  }
-  object GuestIdFeature
-      extends DataRecordOptionalFeature[PipelineQuery, Long]
-      with LongDiscreteDataRecordCompatible {
-    override def featureName: String = SharedFeatures.GUEST_ID.getFeatureName
-    override def personalDataTypes: Set[pd.PersonalDataType] = Set(pd.PersonalDataType.GuestId)
-  }
-  object HasDarkRequestFeature extends Feature[PipelineQuery, Option[Boolean]]
-  object ImpressionBloomFilterFeature
-      extends FeatureWithDefaultOnFailure[PipelineQuery, blm.ImpressionBloomFilterSeq] {
-    override def defaultValue: blm.ImpressionBloomFilterSeq =
-      blm.ImpressionBloomFilterSeq(Seq.empty)
-  }
-  object IsForegroundRequestFeature extends Feature[PipelineQuery, Boolean]
-  object IsLaunchRequestFeature extends Feature[PipelineQuery, Boolean]
-  object LastNonPollingTimeFeature extends Feature[PipelineQuery, Option[Time]]
-  object NonPollingTimesFeature extends Feature[PipelineQuery, Seq[Long]]
-  object PersistenceEntriesFeature extends Feature[PipelineQuery, Seq[TimelineResponseV3]]
-  object PollingFeature extends Feature[PipelineQuery, Boolean]
-  object PullToRefreshFeature extends Feature[PipelineQuery, Boolean]
-  // Scores from Real Graph representing the relationship between the viewer and another user
-  object RealGraphInNetworkScoresFeature extends Feature[PipelineQuery, Map[UserId, Double]]
-  object RequestJoinIdFeature extends Feature[TweetCandidate, Option[Long]]
-  // Internal id generated per request, mainly to deduplicate re-served cached tweets in logging
-  object ServedRequestIdFeature extends Feature[PipelineQuery, Option[Long]]
-  object ServedTweetIdsFeature extends Feature[PipelineQuery, Seq[Long]]
-  object ServedTweetPreviewIdsFeature extends Feature[PipelineQuery, Seq[Long]]
-  object TimelineServiceTweetsFeature extends Feature[PipelineQuery, Seq[Long]]
-  object TimestampFeature
-      extends DataRecordFeature[PipelineQuery, Long]
-      with LongDiscreteDataRecordCompatible {
-    override def featureName: String = SharedFeatures.TIMESTAMP.getFeatureName
-    override def personalDataTypes: Set[pd.PersonalDataType] = Set.empty
-  }
-  object TimestampGMTDowFeature
-      extends DataRecordFeature[PipelineQuery, Long]
-      with LongDiscreteDataRecordCompatible {
-    override def featureName: String = RequestContextFeatures.TIMESTAMP_GMT_DOW.getFeatureName
-    override def personalDataTypes: Set[pd.PersonalDataType] = Set.empty
-  }
-  object TimestampGMTHourFeature
-      extends DataRecordFeature[PipelineQuery, Long]
-      with LongDiscreteDataRecordCompatible {
-    override def featureName: String = RequestContextFeatures.TIMESTAMP_GMT_HOUR.getFeatureName
-    override def personalDataTypes: Set[pd.PersonalDataType] = Set.empty
-  }
-  object TweetImpressionsFeature extends Feature[PipelineQuery, Seq[imp.TweetImpressionsEntry]]
-  object UserFollowedTopicsCountFeature extends Feature[PipelineQuery, Option[Int]]
-  object UserFollowingCountFeature extends Feature[PipelineQuery, Option[Int]]
-  object UserScreenNameFeature extends Feature[PipelineQuery, Option[String]]
-  object UserStateFeature extends Feature[PipelineQuery, Option[um.UserState]]
-  object UserTypeFeature extends Feature[PipelineQuery, Option[gt.UserType]]
-  object WhoToFollowExcludedUserIdsFeature
-      extends FeatureWithDefaultOnFailure[PipelineQuery, Seq[Long]] {
-    override def defaultValue = Seq.empty
-  }
-
-  // Result Features
-  object ServedSizeFeature extends Feature[PipelineQuery, Option[Int]]
-  object HasRandomTweetFeature extends Feature[PipelineQuery, Boolean]
-  object IsRandomTweetAboveFeature extends Feature[TweetCandidate, Boolean]
-  object ServedInConversationModuleFeature extends Feature[TweetCandidate, Boolean]
-  object ConversationModule2DisplayedTweetsFeature extends Feature[TweetCandidate, Boolean]
-  object ConversationModuleHasGapFeature extends Feature[TweetCandidate, Boolean]
-  object SGSValidLikedByUserIdsFeature extends Feature[TweetCandidate, Seq[Long]]
-  object SGSValidFollowedByUserIdsFeature extends Feature[TweetCandidate, Seq[Long]]
-  object PerspectiveFilteredLikedByUserIdsFeature extends Feature[TweetCandidate, Seq[Long]]
-  object ScreenNamesFeature extends Feature[TweetCandidate, Map[Long, String]]
-  object RealNamesFeature extends Feature[TweetCandidate, Map[Long, String]]
-
-  /**
-   * Features around the focal Tweet for Tweets which should be rendered in convo modules.
-   * These are needed in order to render social context above the root tweet in a convo modules.
-   * For example if we have a convo module A-B-C (A Tweets, B replies to A, C replies to B), the descendant features are
-   * for the Tweet C. These features are None except for the root Tweet for Tweets which should render into
-   * convo modules.
-   */
-  object FocalTweetAuthorIdFeature extends Feature[TweetCandidate, Option[Long]]
-  object FocalTweetInNetworkFeature extends Feature[TweetCandidate, Option[Boolean]]
-  object FocalTweetRealNamesFeature extends Feature[TweetCandidate, Option[Map[Long, String]]]
-  object FocalTweetScreenNamesFeature extends Feature[TweetCandidate, Option[Map[Long, String]]]
-  object MediaUnderstandingAnnotationIdsFeature extends Feature[TweetCandidate, Seq[Long]]
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/BUILD.bazel
deleted file mode 100644
index 3883e454e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/BUILD.bazel
+++ /dev/null
@@ -1,15 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "dspbidder/thrift/src/main/thrift/com/twitter/dspbidder/commons:thrift-scala",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/common",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/request",
-        "timelineservice/common:model",
-    ],
-    exports = [
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/request",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/DeviceContext.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/DeviceContext.scala
deleted file mode 100644
index ef96865ca..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/DeviceContext.scala
+++ /dev/null
@@ -1,74 +0,0 @@
-package com.twitter.home_mixer.model.request
-
-import com.twitter.product_mixer.core.model.marshalling.request.ClientContext
-import com.twitter.{timelineservice => tls}
-
-case class DeviceContext(
-  isPolling: Option[Boolean],
-  requestContext: Option[String],
-  latestControlAvailable: Option[Boolean],
-  autoplayEnabled: Option[Boolean]) {
-
-  lazy val requestContextValue: Option[DeviceContext.RequestContext.Value] =
-    requestContext.flatMap { value =>
-      val normalizedValue = value.trim.toLowerCase()
-      DeviceContext.RequestContext.values.find(_.toString == normalizedValue)
-    }
-
-  def toTimelineServiceDeviceContext(clientContext: ClientContext): tls.DeviceContext =
-    tls.DeviceContext(
-      countryCode = clientContext.countryCode,
-      languageCode = clientContext.languageCode,
-      clientAppId = clientContext.appId,
-      ipAddress = clientContext.ipAddress,
-      guestId = clientContext.guestId,
-      sessionId = None,
-      timezone = None,
-      userAgent = clientContext.userAgent,
-      deviceId = clientContext.deviceId,
-      isPolling = isPolling,
-      requestProvenance = requestContext,
-      referrer = None,
-      tfeAuthHeader = None,
-      mobileDeviceId = clientContext.mobileDeviceId,
-      isSessionStart = None,
-      displaySize = None,
-      isURTRequest = Some(true),
-      latestControlAvailable = latestControlAvailable,
-      guestIdMarketing = clientContext.guestIdMarketing,
-      isInternalOrTwoffice = clientContext.isTwoffice,
-      browserNotificationPermission = None,
-      guestIdAds = clientContext.guestIdAds,
-    )
-}
-
-object DeviceContext {
-  val Empty: DeviceContext = DeviceContext(
-    isPolling = None,
-    requestContext = None,
-    latestControlAvailable = None,
-    autoplayEnabled = None
-  )
-
-  /**
-   * Constants which reflect valid client request provenances (why a request was initiated, encoded
-   * by the "request_context" HTTP parameter).
-   */
-  object RequestContext extends Enumeration {
-    val Auto = Value("auto")
-    val Foreground = Value("foreground")
-    val Gap = Value("gap")
-    val Launch = Value("launch")
-    val ManualRefresh = Value("manual_refresh")
-    val Navigate = Value("navigate")
-    val Polling = Value("polling")
-    val PullToRefresh = Value("ptr")
-    val Signup = Value("signup")
-    val TweetSelfThread = Value("tweet_self_thread")
-    val BackgroundFetch = Value("background_fetch")
-  }
-}
-
-trait HasDeviceContext {
-  def deviceContext: Option[DeviceContext]
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/HasListId.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/HasListId.scala
deleted file mode 100644
index ece09a0d4..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/HasListId.scala
+++ /dev/null
@@ -1,8 +0,0 @@
-package com.twitter.home_mixer.model.request
-
-/**
- * [[HasListId]] enables shared components to access the list id shared by all list timeline products.
- */
-trait HasListId {
-  def listId: Long
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/HasSeenTweetIds.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/HasSeenTweetIds.scala
deleted file mode 100644
index 0ec657384..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/HasSeenTweetIds.scala
+++ /dev/null
@@ -1,9 +0,0 @@
-package com.twitter.home_mixer.model.request
-
-/**
- * [[HasSeenTweetIds]] enables shared components to access the list of impressed tweet IDs
- * sent by clients across different Home Mixer query types (e.g. FollowingQuery, ForYouQuery)
- */
-trait HasSeenTweetIds {
-  def seenTweetIds: Option[Seq[Long]]
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/HomeMixerDebugOptions.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/HomeMixerDebugOptions.scala
deleted file mode 100644
index 818380946..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/HomeMixerDebugOptions.scala
+++ /dev/null
@@ -1,8 +0,0 @@
-package com.twitter.home_mixer.model.request
-
-import com.twitter.product_mixer.core.model.marshalling.request.DebugOptions
-import com.twitter.util.Time
-
-case class HomeMixerDebugOptions(
-  override val requestTimeOverride: Option[Time])
-    extends DebugOptions
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/HomeMixerProduct.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/HomeMixerProduct.scala
deleted file mode 100644
index 7c27c50d5..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/HomeMixerProduct.scala
+++ /dev/null
@@ -1,40 +0,0 @@
-package com.twitter.home_mixer.model.request
-
-import com.twitter.product_mixer.core.model.common.identifier.ProductIdentifier
-import com.twitter.product_mixer.core.model.marshalling.request.Product
-
-/**
- * Identifier names on products can be used to create Feature Switch rules by product,
- * which useful if bucketing occurs in a component shared by multiple products.
- * @see [[Product.identifier]]
- */
-
-case object FollowingProduct extends Product {
-  override val identifier: ProductIdentifier = ProductIdentifier("Following")
-  override val stringCenterProject: Option[String] = Some("timelinemixer")
-}
-
-case object ForYouProduct extends Product {
-  override val identifier: ProductIdentifier = ProductIdentifier("ForYou")
-  override val stringCenterProject: Option[String] = Some("timelinemixer")
-}
-
-case object ScoredTweetsProduct extends Product {
-  override val identifier: ProductIdentifier = ProductIdentifier("ScoredTweets")
-  override val stringCenterProject: Option[String] = Some("timelinemixer")
-}
-
-case object ListTweetsProduct extends Product {
-  override val identifier: ProductIdentifier = ProductIdentifier("ListTweets")
-  override val stringCenterProject: Option[String] = Some("timelinemixer")
-}
-
-case object ListRecommendedUsersProduct extends Product {
-  override val identifier: ProductIdentifier = ProductIdentifier("ListRecommendedUsers")
-  override val stringCenterProject: Option[String] = Some("timelinemixer")
-}
-
-case object SubscribedProduct extends Product {
-  override val identifier: ProductIdentifier = ProductIdentifier("Subscribed")
-  override val stringCenterProject: Option[String] = Some("timelinemixer")
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/HomeMixerProductContext.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/HomeMixerProductContext.scala
deleted file mode 100644
index dddd733f3..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/HomeMixerProductContext.scala
+++ /dev/null
@@ -1,42 +0,0 @@
-package com.twitter.home_mixer.model.request
-
-import com.twitter.dspbidder.commons.thriftscala.DspClientContext
-import com.twitter.product_mixer.core.model.marshalling.request.ProductContext
-
-case class FollowingProductContext(
-  deviceContext: Option[DeviceContext],
-  seenTweetIds: Option[Seq[Long]],
-  dspClientContext: Option[DspClientContext])
-    extends ProductContext
-
-case class ForYouProductContext(
-  deviceContext: Option[DeviceContext],
-  seenTweetIds: Option[Seq[Long]],
-  dspClientContext: Option[DspClientContext],
-  pushToHomeTweetId: Option[Long])
-    extends ProductContext
-
-case class ScoredTweetsProductContext(
-  deviceContext: Option[DeviceContext],
-  seenTweetIds: Option[Seq[Long]],
-  servedTweetIds: Option[Seq[Long]],
-  backfillTweetIds: Option[Seq[Long]])
-    extends ProductContext
-
-case class ListTweetsProductContext(
-  listId: Long,
-  deviceContext: Option[DeviceContext],
-  dspClientContext: Option[DspClientContext])
-    extends ProductContext
-
-case class ListRecommendedUsersProductContext(
-  listId: Long,
-  selectedUserIds: Option[Seq[Long]],
-  excludedUserIds: Option[Seq[Long]],
-  listName: Option[String])
-    extends ProductContext
-
-case class SubscribedProductContext(
-  deviceContext: Option[DeviceContext],
-  seenTweetIds: Option[Seq[Long]])
-    extends ProductContext
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/HomeMixerRequest.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/HomeMixerRequest.scala
deleted file mode 100644
index 34595c34c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request/HomeMixerRequest.scala
+++ /dev/null
@@ -1,19 +0,0 @@
-package com.twitter.home_mixer.model.request
-
-import com.twitter.product_mixer.core.model.marshalling.request.ClientContext
-import com.twitter.product_mixer.core.model.marshalling.request.DebugParams
-import com.twitter.product_mixer.core.model.marshalling.request.Product
-import com.twitter.product_mixer.core.model.marshalling.request.ProductContext
-import com.twitter.product_mixer.core.model.marshalling.request.Request
-
-case class HomeMixerRequest(
-  override val clientContext: ClientContext,
-  override val product: Product,
-  // Product-specific parameters should be placed in the Product Context
-  override val productContext: Option[ProductContext],
-  override val serializedRequestCursor: Option[String],
-  override val maxResults: Option[Int],
-  override val debugParams: Option[DebugParams],
-  // Parameters that apply to all products can be promoted to the request-level
-  homeRequestParam: Boolean)
-    extends Request
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/AdvertiserBrandSafetySettingsStoreModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/AdvertiserBrandSafetySettingsStoreModule.scala
deleted file mode 100644
index d095d2054..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/AdvertiserBrandSafetySettingsStoreModule.scala
+++ /dev/null
@@ -1,56 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-
-import com.twitter.adserver.{thriftscala => ads}
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.inject.TwitterModule
-import com.twitter.storage.client.manhattan.kv.Guarantee
-import com.twitter.storehaus.ReadableStore
-import com.twitter.storehaus_internal.manhattan.ManhattanCluster
-import com.twitter.storehaus_internal.manhattan.ManhattanClusters
-import com.twitter.timelines.clients.ads.AdvertiserBrandSafetySettingsStore
-import com.twitter.timelines.clients.manhattan.mhv3.ManhattanClientBuilder
-import com.twitter.timelines.clients.manhattan.mhv3.ManhattanClientConfigWithDataset
-import com.twitter.util.Duration
-
-import javax.inject.Singleton
-
-object AdvertiserBrandSafetySettingsStoreModule extends TwitterModule {
-
-  @Provides
-  @Singleton
-  def providesAdvertiserBrandSafetySettingsStore(
-    injectedServiceIdentifier: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ): ReadableStore[Long, ads.AdvertiserBrandSafetySettings] = {
-    val advertiserBrandSafetySettingsManhattanClientConfig = new ManhattanClientConfigWithDataset {
-      override val cluster: ManhattanCluster = ManhattanClusters.apollo
-      override val appId: String = "brand_safety_apollo"
-      override val dataset = "advertiser_brand_safety_settings"
-      override val statsScope: String = "AdvertiserBrandSafetySettingsManhattanClient"
-      override val defaultGuarantee = Guarantee.Weak
-      override val defaultMaxTimeout: Duration = 100.milliseconds
-      override val maxRetryCount: Int = 1
-      override val isReadOnly: Boolean = true
-      override val serviceIdentifier: ServiceIdentifier = injectedServiceIdentifier
-    }
-
-    val advertiserBrandSafetySettingsManhattanEndpoint = ManhattanClientBuilder
-      .buildManhattanEndpoint(advertiserBrandSafetySettingsManhattanClientConfig, statsReceiver)
-
-    val advertiserBrandSafetySettingsStore: ReadableStore[Long, ads.AdvertiserBrandSafetySettings] =
-      AdvertiserBrandSafetySettingsStore
-        .cached(
-          advertiserBrandSafetySettingsManhattanEndpoint,
-          advertiserBrandSafetySettingsManhattanClientConfig.dataset,
-          ttl = 60.minutes,
-          maxKeys = 100000,
-          windowSize = 10L
-        )(statsReceiver)
-
-    advertiserBrandSafetySettingsStore
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/BUILD.bazel
deleted file mode 100644
index b7fbca0d3..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/BUILD.bazel
+++ /dev/null
@@ -1,90 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/com/twitter/bijection:scrooge",
-        "3rdparty/jvm/com/twitter/bijection:thrift",
-        "3rdparty/jvm/com/twitter/src/java/com/twitter/logpipeline/client:logpipeline-event-publisher-thin",
-        "3rdparty/jvm/com/twitter/storehaus:core",
-        "3rdparty/jvm/io/netty:netty4-tcnative-boringssl-static",
-        "eventbus/client/src/main/scala/com/twitter/eventbus/client",
-        "finagle-internal/finagle-grpc/src/main/scala",
-        "finagle-internal/mtls/src/main/scala/com/twitter/finagle/mtls/authentication",
-        "finagle-internal/mtls/src/main/scala/com/twitter/finagle/mtls/client",
-        "finagle/finagle-core/src/main",
-        "finagle/finagle-memcached/src/main/scala",
-        "finagle/finagle-mux/src/main/scala",
-        "finagle/finagle-thriftmux/src/main/scala",
-        "finatra/inject/inject-core/src/main/scala",
-        "hermit/hermit-core/src/main/scala/com/twitter/hermit/store/common",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/store",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util/earlybird",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "interests-service/thrift/src/main/thrift:thrift-scala",
-        "people-discovery/api/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/module",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-        "product-mixer/shared-library/src/main/scala/com/twitter/product_mixer/shared_library/manhattan_client",
-        "product-mixer/shared-library/src/main/scala/com/twitter/product_mixer/shared_library/memcached_client",
-        "product-mixer/shared-library/src/main/scala/com/twitter/product_mixer/shared_library/thrift_client",
-        "servo/client/src/main/scala/com/twitter/servo/client",
-        "servo/manhattan",
-        "servo/util",
-        "socialgraph/server/src/main/scala/com/twitter/socialgraph/util",
-        "src/scala/com/twitter/ml/featurestore/lib",
-        "src/scala/com/twitter/scalding_internal/multiformat/format",
-        "src/scala/com/twitter/storehaus_internal",
-        "src/scala/com/twitter/summingbird_internal/bijection:bijection-implicits",
-        "src/scala/com/twitter/timelines/util",
-        "src/thrift/com/twitter/ads/adserver:adserver_rpc-scala",
-        "src/thrift/com/twitter/clientapp/gen:clientapp-scala",
-        "src/thrift/com/twitter/hermit/candidate:hermit-candidate-scala",
-        "src/thrift/com/twitter/manhattan:v1-scala",
-        "src/thrift/com/twitter/manhattan:v2-scala",
-        "src/thrift/com/twitter/onboarding/relevance/features:features-java",
-        "src/thrift/com/twitter/search:blender-scala",
-        "src/thrift/com/twitter/search:earlybird-scala",
-        "src/thrift/com/twitter/service/metastore/gen:thrift-scala",
-        "src/thrift/com/twitter/socialgraph:thrift-scala",
-        "src/thrift/com/twitter/timelines/author_features:thrift-java",
-        "src/thrift/com/twitter/timelines/impression_bloom_filter:thrift-scala",
-        "src/thrift/com/twitter/timelines/impression_store:thrift-scala",
-        "src/thrift/com/twitter/timelines/real_graph:real_graph-scala",
-        "src/thrift/com/twitter/timelines/suggests/common:poly_data_record-java",
-        "src/thrift/com/twitter/timelines/timeline_logging:thrift-scala",
-        "src/thrift/com/twitter/timelinescorer/common/scoredtweetcandidate:thrift-scala",
-        "src/thrift/com/twitter/topic_recos:topic_recos-thrift-java",
-        "src/thrift/com/twitter/user_session_store:thrift-java",
-        "src/thrift/com/twitter/wtf/candidate:wtf-candidate-scala",
-        "stitch/stitch-socialgraph",
-        "stitch/stitch-tweetypie",
-        "strato/src/main/scala/com/twitter/strato/client",
-        "timelinemixer/common/src/main/scala/com/twitter/timelinemixer/clients/feedback",
-        "timelinemixer/common/src/main/scala/com/twitter/timelinemixer/clients/manhattan",
-        "timelinemixer/server/src/main/scala/com/twitter/timelinemixer/injection/store/persistence",
-        "timelines:decider",
-        "timelines/src/main/scala/com/twitter/timelines/clients/ads",
-        "timelines/src/main/scala/com/twitter/timelines/clients/manhattan",
-        "timelines/src/main/scala/com/twitter/timelines/clients/manhattan/store",
-        "timelines/src/main/scala/com/twitter/timelines/clients/predictionservice",
-        "timelines/src/main/scala/com/twitter/timelines/clients/strato",
-        "timelines/src/main/scala/com/twitter/timelines/clients/strato/topics",
-        "timelines/src/main/scala/com/twitter/timelines/clients/strato/twistly",
-        "timelines/src/main/scala/com/twitter/timelines/config",
-        "timelines/src/main/scala/com/twitter/timelines/impressionstore/impressionbloomfilter",
-        "timelines/src/main/scala/com/twitter/timelines/impressionstore/store",
-        "timelines/src/main/scala/com/twitter/timelines/util/stats",
-        "timelineservice/common/src/main/scala/com/twitter/timelineservice/model",
-        "tweetconvosvc/client/src/main/scala/com/twitter/tweetconvosvc/client/builder",
-        "twitter-config/yaml",
-    ],
-    exports = [
-        "timelines/src/main/scala/com/twitter/timelines/clients/predictionservice",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/BlenderClientModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/BlenderClientModule.scala
deleted file mode 100644
index bc4045181..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/BlenderClientModule.scala
+++ /dev/null
@@ -1,41 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.finagle.thrift.ClientId
-import com.twitter.inject.TwitterModule
-import com.twitter.product_mixer.shared_library.thrift_client.FinagleThriftClientBuilder
-import com.twitter.product_mixer.shared_library.thrift_client.NonIdempotent
-import com.twitter.search.blender.thriftscala.BlenderService
-import javax.inject.Singleton
-
-object BlenderClientModule extends TwitterModule {
-
-  @Singleton
-  @Provides
-  def providesBlenderClient(
-    serviceIdentifier: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ): BlenderService.MethodPerEndpoint = {
-    val clientId = serviceIdentifier.environment.toLowerCase match {
-      case "prod" => ClientId("")
-      case _ => ClientId("")
-    }
-
-    FinagleThriftClientBuilder.buildFinagleMethodPerEndpoint[
-      BlenderService.ServicePerEndpoint,
-      BlenderService.MethodPerEndpoint
-    ](
-      serviceIdentifier = serviceIdentifier,
-      clientId = clientId,
-      dest = "/s/blender-universal/blender",
-      label = "blender",
-      statsReceiver = statsReceiver,
-      idempotency = NonIdempotent,
-      timeoutPerRequest = 1000.milliseconds,
-      timeoutTotal = 1000.milliseconds,
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ClientSentImpressionsPublisherModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ClientSentImpressionsPublisherModule.scala
deleted file mode 100644
index f7c5e9bc7..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ClientSentImpressionsPublisherModule.scala
+++ /dev/null
@@ -1,48 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.twitter.conversions.DurationOps._
-import com.twitter.eventbus.client.EventBusPublisher
-import com.twitter.eventbus.client.EventBusPublisherBuilder
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.inject.TwitterModule
-import com.twitter.timelines.config.ConfigUtils
-import com.twitter.timelines.config.Env
-import com.twitter.timelines.impressionstore.thriftscala.PublishedImpressionList
-import javax.inject.Singleton
-
-object ClientSentImpressionsPublisherModule extends TwitterModule with ConfigUtils {
-  private val serviceName = "home-mixer"
-
-  @Singleton
-  @Provides
-  def providesClientSentImpressionsPublisher(
-    serviceIdentifier: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ): EventBusPublisher[PublishedImpressionList] = {
-    val env = serviceIdentifier.environment.toLowerCase match {
-      case "prod" => Env.prod
-      case "staging" => Env.staging
-      case "local" => Env.local
-      case _ => Env.devel
-    }
-
-    val streamName = env match {
-      case Env.prod => "timelinemixer_client_sent_impressions_prod"
-      case _ => "timelinemixer_client_sent_impressions_devel"
-    }
-
-    EventBusPublisherBuilder()
-      .clientId(clientIdWithScopeOpt(serviceName, env))
-      .serviceIdentifier(serviceIdentifier)
-      .streamName(streamName)
-      .statsReceiver(statsReceiver.scope("eventbus"))
-      .thriftStruct(PublishedImpressionList)
-      .tcpConnectTimeout(20.milliseconds)
-      .connectTimeout(100.milliseconds)
-      .requestTimeout(1.second)
-      .publishTimeout(1.second)
-      .build()
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ConversationServiceModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ConversationServiceModule.scala
deleted file mode 100644
index 9a7d8771c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ConversationServiceModule.scala
+++ /dev/null
@@ -1,37 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.ThriftMux
-import com.twitter.finagle.thriftmux.MethodBuilder
-import com.twitter.finatra.mtls.thriftmux.modules.MtlsClient
-import com.twitter.inject.Injector
-import com.twitter.inject.thrift.modules.ThriftMethodBuilderClientModule
-import com.twitter.tweetconvosvc.thriftscala.ConversationService
-import com.twitter.util.Duration
-import org.apache.thrift.protocol.TCompactProtocol
-
-object ConversationServiceModule
-    extends ThriftMethodBuilderClientModule[
-      ConversationService.ServicePerEndpoint,
-      ConversationService.MethodPerEndpoint
-    ]
-    with MtlsClient {
-
-  override val label: String = "tweetconvosvc"
-  override val dest: String = "/s/tweetconvosvc/tweetconvosvc"
-
-  override protected def configureMethodBuilder(
-    injector: Injector,
-    methodBuilder: MethodBuilder
-  ): MethodBuilder = methodBuilder.withTimeoutPerRequest(100.milliseconds)
-
-  override def configureThriftMuxClient(
-    injector: Injector,
-    client: ThriftMux.Client
-  ): ThriftMux.Client =
-    super
-      .configureThriftMuxClient(injector, client)
-      .withProtocolFactory(new TCompactProtocol.Factory())
-
-  override protected def sessionAcquisitionTimeout: Duration = 500.milliseconds
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/FeedbackHistoryClientModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/FeedbackHistoryClientModule.scala
deleted file mode 100644
index c065f7b35..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/FeedbackHistoryClientModule.scala
+++ /dev/null
@@ -1,47 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.inject.TwitterModule
-import com.twitter.inject.annotations.Flag
-import com.twitter.timelinemixer.clients.feedback.FeedbackHistoryManhattanClient
-import com.twitter.timelinemixer.clients.feedback.FeedbackHistoryManhattanClientConfig
-import com.twitter.timelines.clients.manhattan.mhv3.ManhattanClientBuilder
-import com.twitter.util.Duration
-import javax.inject.Singleton
-
-object FeedbackHistoryClientModule extends TwitterModule {
-  private val ProdDataset = "feedback_history"
-  private val StagingDataset = "feedback_history_nonprod"
-  private final val Timeout = "mh_feedback_history.timeout"
-
-  flag[Duration](Timeout, 150.millis, "Timeout per request")
-
-  @Provides
-  @Singleton
-  def providesFeedbackHistoryClient(
-    @Flag(Timeout) timeout: Duration,
-    serviceId: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ) = {
-    val manhattanDataset = serviceId.environment.toLowerCase match {
-      case "prod" => ProdDataset
-      case _ => StagingDataset
-    }
-
-    val config = new FeedbackHistoryManhattanClientConfig {
-      val dataset = manhattanDataset
-      val isReadOnly = true
-      val serviceIdentifier = serviceId
-      override val defaultMaxTimeout = timeout
-    }
-
-    new FeedbackHistoryManhattanClient(
-      ManhattanClientBuilder.buildManhattanEndpoint(config, statsReceiver),
-      manhattanDataset,
-      statsReceiver
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/HomeAdsCandidateSourceModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/HomeAdsCandidateSourceModule.scala
deleted file mode 100644
index 73e1500a0..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/HomeAdsCandidateSourceModule.scala
+++ /dev/null
@@ -1,32 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.twitter.adserver.thriftscala.NewAdServer
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.thriftmux.MethodBuilder
-import com.twitter.finatra.mtls.thriftmux.modules.MtlsClient
-import com.twitter.inject.Injector
-import com.twitter.inject.thrift.modules.ThriftMethodBuilderClientModule
-import com.twitter.util.Duration
-
-object HomeAdsCandidateSourceModule
-    extends ThriftMethodBuilderClientModule[
-      NewAdServer.ServicePerEndpoint,
-      NewAdServer.MethodPerEndpoint
-    ]
-    with MtlsClient {
-
-  override val label = "adserver"
-  override val dest = "/s/ads/adserver"
-
-  override protected def configureMethodBuilder(
-    injector: Injector,
-    methodBuilder: MethodBuilder
-  ): MethodBuilder = {
-    methodBuilder
-      .withTimeoutPerRequest(1200.milliseconds)
-      .withTimeoutTotal(1200.milliseconds)
-      .withMaxRetries(2)
-  }
-
-  override protected def sessionAcquisitionTimeout: Duration = 150.milliseconds
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/HomeMixerFlagsModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/HomeMixerFlagsModule.scala
deleted file mode 100644
index e31d2d9bc..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/HomeMixerFlagsModule.scala
+++ /dev/null
@@ -1,59 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.twitter.conversions.DurationOps.RichDuration
-import com.twitter.home_mixer.param.HomeMixerFlagName
-import com.twitter.inject.TwitterModule
-import com.twitter.util.Duration
-
-object HomeMixerFlagsModule extends TwitterModule {
-
-  import HomeMixerFlagName._
-
-  flag[Boolean](
-    name = ScribeClientEventsFlag,
-    default = false,
-    help = "Toggles logging client events to Scribe"
-  )
-
-  flag[Boolean](
-    name = ScribeServedCandidatesFlag,
-    default = false,
-    help = "Toggles logging served candidates to Scribe"
-  )
-
-  flag[Boolean](
-    name = ScribeScoredCandidatesFlag,
-    default = false,
-    help = "Toggles logging scored candidates to Scribe"
-  )
-
-  flag[Boolean](
-    name = ScribeServedCommonFeaturesAndCandidateFeaturesFlag,
-    default = false,
-    help = "Toggles logging served common features and candidates features to Scribe"
-  )
-
-  flag[String](
-    name = DataRecordMetadataStoreConfigsYmlFlag,
-    default = "",
-    help = "The YML file that contains the necessary info for creating metadata store MySQL client."
-  )
-
-  flag[String](
-    name = DarkTrafficFilterDeciderKey,
-    default = "dark_traffic_filter",
-    help = "Dark traffic filter decider key"
-  )
-
-  flag[Duration](
-    TargetFetchLatency,
-    300.millis,
-    "Target fetch latency from candidate sources for Quality Factor"
-  )
-
-  flag[Duration](
-    TargetScoringLatency,
-    700.millis,
-    "Target scoring latency for Quality Factor"
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/HomeMixerResourcesModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/HomeMixerResourcesModule.scala
deleted file mode 100644
index b68e5b105..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/HomeMixerResourcesModule.scala
+++ /dev/null
@@ -1,5 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.twitter.inject.TwitterModule
-
-object HomeMixerResourcesModule extends TwitterModule {}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ImpressionBloomFilterModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ImpressionBloomFilterModule.scala
deleted file mode 100644
index f37531483..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ImpressionBloomFilterModule.scala
+++ /dev/null
@@ -1,59 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.inject.TwitterModule
-import com.twitter.inject.annotations.Flag
-import com.twitter.storage.client.manhattan.kv.Guarantee
-import com.twitter.storehaus_internal.manhattan.ManhattanClusters
-import com.twitter.timelines.clients.manhattan.store._
-import com.twitter.timelines.impressionbloomfilter.{thriftscala => blm}
-import com.twitter.timelines.impressionstore.impressionbloomfilter.ImpressionBloomFilterManhattanKeyValueDescriptor
-import com.twitter.util.Duration
-import javax.inject.Singleton
-
-object ImpressionBloomFilterModule extends TwitterModule {
-
-  private val ProdAppId = "impression_bloom_filter_store"
-  private val ProdDataset = "impression_bloom_filter"
-  private val StagingAppId = "impression_bloom_filter_store_staging"
-  private val StagingDataset = "impression_bloom_filter_staging"
-  private val ClientStatsScope = "tweetBloomFilterImpressionManhattanClient"
-  private val DefaultTTL = 7.days
-  private final val Timeout = "mh_impression_store_bloom_filter.timeout"
-
-  flag[Duration](Timeout, 150.millis, "Timeout per request")
-
-  @Provides
-  @Singleton
-  def providesImpressionBloomFilter(
-    @Flag(Timeout) timeout: Duration,
-    serviceIdentifier: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ): ManhattanStoreClient[blm.ImpressionBloomFilterKey, blm.ImpressionBloomFilterSeq] = {
-    val (appId, dataset) = serviceIdentifier.environment.toLowerCase match {
-      case "prod" => (ProdAppId, ProdDataset)
-      case _ => (StagingAppId, StagingDataset)
-    }
-
-    implicit val manhattanKeyValueDescriptor: ImpressionBloomFilterManhattanKeyValueDescriptor =
-      ImpressionBloomFilterManhattanKeyValueDescriptor(
-        dataset = dataset,
-        ttl = DefaultTTL
-      )
-
-    ManhattanStoreClientBuilder.buildManhattanClient(
-      serviceIdentifier = serviceIdentifier,
-      cluster = ManhattanClusters.nash,
-      appId = appId,
-      defaultMaxTimeout = timeout,
-      maxRetryCount = 2,
-      defaultGuarantee = Some(Guarantee.SoftDcReadMyWrites),
-      isReadOnly = false,
-      statsScope = ClientStatsScope,
-      statsReceiver = statsReceiver
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/InjectionHistoryClientModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/InjectionHistoryClientModule.scala
deleted file mode 100644
index fe274ff1d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/InjectionHistoryClientModule.scala
+++ /dev/null
@@ -1,88 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.ThriftMux
-import com.twitter.finagle.builder.ClientBuilder
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.finagle.mtls.client.MtlsStackClient._
-import com.twitter.finagle.service.RetryPolicy
-import com.twitter.finagle.ssl.OpportunisticTls
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.inject.TwitterModule
-import com.twitter.manhattan.v2.thriftscala.{ManhattanCoordinator => ManhattanV2}
-import com.twitter.timelinemixer.clients.manhattan.InjectionHistoryClient
-import com.twitter.timelinemixer.clients.manhattan.ManhattanDatasetConfig
-import com.twitter.timelines.clients.manhattan.Dataset
-import com.twitter.timelines.clients.manhattan.ManhattanClient
-import com.twitter.timelines.util.stats.RequestScope
-import javax.inject.Singleton
-import org.apache.thrift.protocol.TBinaryProtocol
-import com.twitter.timelines.config.TimelinesUnderlyingClientConfiguration.ConnectTimeout
-import com.twitter.timelines.config.TimelinesUnderlyingClientConfiguration.TCPConnectTimeout
-
-object InjectionHistoryClientModule extends TwitterModule {
-  private val ProdDataset = "suggestion_history"
-  private val StagingDataset = "suggestion_history_nonprod"
-  private val AppId = "twitter_suggests"
-  private val ServiceName = "manhattan.omega"
-  private val OmegaManhattanDest = "/s/manhattan/omega.native-thrift"
-  private val InjectionRequestScope = RequestScope("injectionHistoryClient")
-  private val RequestTimeout = 75.millis
-  private val Timeout = 150.millis
-
-  val retryPolicy = RetryPolicy.tries(
-    2,
-    RetryPolicy.TimeoutAndWriteExceptionsOnly
-      .orElse(RetryPolicy.ChannelClosedExceptionsOnly))
-
-  @Provides
-  @Singleton
-  def providesInjectionHistoryClient(
-    serviceIdentifier: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ) = {
-    val dataset = serviceIdentifier.environment.toLowerCase match {
-      case "prod" => ProdDataset
-      case _ => StagingDataset
-    }
-
-    val thriftMuxClient = ClientBuilder()
-      .name(ServiceName)
-      .daemon(daemonize = true)
-      .failFast(enabled = true)
-      .retryPolicy(retryPolicy)
-      .tcpConnectTimeout(TCPConnectTimeout)
-      .connectTimeout(ConnectTimeout)
-      .dest(OmegaManhattanDest)
-      .requestTimeout(RequestTimeout)
-      .timeout(Timeout)
-      .stack(ThriftMux.client
-        .withMutualTls(serviceIdentifier)
-        .withOpportunisticTls(OpportunisticTls.Required))
-      .build()
-
-    val manhattanOmegaClient = new ManhattanV2.FinagledClient(
-      service = thriftMuxClient,
-      protocolFactory = new TBinaryProtocol.Factory(),
-      serviceName = ServiceName,
-    )
-
-    val readOnlyMhClient = new ManhattanClient(
-      appId = AppId,
-      manhattan = manhattanOmegaClient,
-      requestScope = InjectionRequestScope,
-      serviceName = ServiceName,
-      statsReceiver = statsReceiver
-    ).readOnly
-
-    val mhDatasetConfig = new ManhattanDatasetConfig {
-      override val SuggestionHistoryDataset = Dataset(dataset)
-    }
-
-    new InjectionHistoryClient(
-      readOnlyMhClient,
-      mhDatasetConfig
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ManhattanClientsModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ManhattanClientsModule.scala
deleted file mode 100644
index fc0e282af..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ManhattanClientsModule.scala
+++ /dev/null
@@ -1,41 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.RealGraphManhattanEndpoint
-import com.twitter.inject.TwitterModule
-import com.twitter.inject.annotations.Flag
-import com.twitter.storage.client.manhattan.kv._
-import com.twitter.timelines.config.ConfigUtils
-import com.twitter.util.Duration
-import javax.inject.Named
-import javax.inject.Singleton
-
-object ManhattanClientsModule extends TwitterModule with ConfigUtils {
-
-  private val ApolloDest = "/s/manhattan/apollo.native-thrift"
-  private final val Timeout = "mh_real_graph.timeout"
-
-  flag[Duration](Timeout, 150.millis, "Timeout total")
-
-  @Provides
-  @Singleton
-  @Named(RealGraphManhattanEndpoint)
-  def providesRealGraphManhattanEndpoint(
-    @Flag(Timeout) timeout: Duration,
-    serviceIdentifier: ServiceIdentifier
-  ): ManhattanKVEndpoint = {
-    lazy val client = ManhattanKVClient(
-      appId = "real_graph",
-      dest = ApolloDest,
-      mtlsParams = ManhattanKVClientMtlsParams(serviceIdentifier = serviceIdentifier),
-      label = "real-graph-data"
-    )
-
-    ManhattanKVEndpointBuilder(client)
-      .maxRetryCount(2)
-      .defaultMaxTimeout(timeout)
-      .build()
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ManhattanFeatureRepositoryModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ManhattanFeatureRepositoryModule.scala
deleted file mode 100644
index 5668ba0ee..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ManhattanFeatureRepositoryModule.scala
+++ /dev/null
@@ -1,468 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.twitter.bijection.Injection
-import com.twitter.bijection.scrooge.BinaryScalaCodec
-import com.twitter.bijection.scrooge.CompactScalaCodec
-import com.twitter.bijection.thrift.ThriftCodec
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.home_mixer.param.HomeMixerInjectionNames._
-import com.twitter.home_mixer.util.InjectionTransformerImplicits._
-import com.twitter.home_mixer.util.LanguageUtil
-import com.twitter.home_mixer.util.TensorFlowUtil
-import com.twitter.inject.TwitterModule
-import com.twitter.manhattan.v1.{thriftscala => mh}
-import com.twitter.ml.api.{thriftscala => ml}
-import com.twitter.ml.featurestore.lib.UserId
-import com.twitter.ml.featurestore.{thriftscala => fs}
-import com.twitter.onboarding.relevance.features.{thriftjava => rf}
-import com.twitter.product_mixer.shared_library.manhattan_client.ManhattanClientBuilder
-import com.twitter.scalding_internal.multiformat.format.keyval.KeyValInjection.ScalaBinaryThrift
-import com.twitter.search.common.constants.{thriftscala => scc}
-import com.twitter.service.metastore.gen.{thriftscala => smg}
-import com.twitter.servo.cache._
-import com.twitter.servo.manhattan.ManhattanKeyValueRepository
-import com.twitter.servo.repository.CachingKeyValueRepository
-import com.twitter.servo.repository.ChunkingStrategy
-import com.twitter.servo.repository.KeyValueRepository
-import com.twitter.servo.repository.Repository
-import com.twitter.servo.repository.keysAsQuery
-import com.twitter.servo.util.Transformer
-import com.twitter.storage.client.manhattan.bijections.Bijections
-import com.twitter.storehaus_internal.manhattan.ManhattanClusters
-import com.twitter.timelines.author_features.v1.{thriftjava => af}
-import com.twitter.timelines.suggests.common.dense_data_record.{thriftscala => ddr}
-import com.twitter.user_session_store.{thriftscala => uss_scala}
-import com.twitter.user_session_store.{thriftjava => uss}
-import com.twitter.util.Duration
-import com.twitter.util.Try
-import java.nio.ByteBuffer
-import javax.inject.Named
-import javax.inject.Singleton
-import org.apache.thrift.protocol.TCompactProtocol
-import org.apache.thrift.transport.TMemoryInputTransport
-import org.apache.thrift.transport.TTransport
-
-object ManhattanFeatureRepositoryModule extends TwitterModule {
-
-  private val DEFAULT_RPC_CHUNK_SIZE = 50
-
-  private val ThriftEntityIdInjection = ScalaBinaryThrift(fs.EntityId)
-
-  private val FeatureStoreUserIdKeyTransformer = new Transformer[Long, ByteBuffer] {
-    override def to(userId: Long): Try[ByteBuffer] = {
-      Try(ByteBuffer.wrap(ThriftEntityIdInjection.apply(UserId(userId).toThrift)))
-    }
-    override def from(b: ByteBuffer): Try[Long] = ???
-  }
-
-  private val FloatTensorTransformer = new Transformer[ByteBuffer, ml.FloatTensor] {
-    override def to(input: ByteBuffer): Try[ml.FloatTensor] = {
-      val floatTensor = TensorFlowUtil.embeddingByteBufferToFloatTensor(input)
-      Try(floatTensor)
-    }
-
-    override def from(b: ml.FloatTensor): Try[ByteBuffer] = ???
-  }
-
-  private val LanguageTransformer = new Transformer[ByteBuffer, Seq[scc.ThriftLanguage]] {
-    override def to(input: ByteBuffer): Try[Seq[scc.ThriftLanguage]] = {
-      Try.fromScala(
-        Bijections
-          .BinaryScalaInjection(smg.UserLanguages)
-          .andThen(Bijections.byteBuffer2Buf.inverse)
-          .invert(input).map(LanguageUtil.computeLanguages(_)))
-    }
-
-    override def from(b: Seq[scc.ThriftLanguage]): Try[ByteBuffer] = ???
-  }
-
-  private val LongKeyTransformer = Injection
-    .connect[Long, Array[Byte]]
-    .toByteBufferTransformer()
-
-  // manhattan clients
-
-  @Provides
-  @Singleton
-  @Named(ManhattanApolloClient)
-  def providesManhattanApolloClient(
-    serviceIdentifier: ServiceIdentifier
-  ): mh.ManhattanCoordinator.MethodPerEndpoint = {
-    ManhattanClientBuilder
-      .buildManhattanV1FinagleClient(
-        ManhattanClusters.apollo,
-        serviceIdentifier
-      )
-  }
-
-  @Provides
-  @Singleton
-  @Named(ManhattanAthenaClient)
-  def providesManhattanAthenaClient(
-    serviceIdentifier: ServiceIdentifier
-  ): mh.ManhattanCoordinator.MethodPerEndpoint = {
-    ManhattanClientBuilder
-      .buildManhattanV1FinagleClient(
-        ManhattanClusters.athena,
-        serviceIdentifier
-      )
-  }
-
-  @Provides
-  @Singleton
-  @Named(ManhattanOmegaClient)
-  def providesManhattanOmegaClient(
-    serviceIdentifier: ServiceIdentifier
-  ): mh.ManhattanCoordinator.MethodPerEndpoint = {
-    ManhattanClientBuilder
-      .buildManhattanV1FinagleClient(
-        ManhattanClusters.omega,
-        serviceIdentifier
-      )
-  }
-
-  @Provides
-  @Singleton
-  @Named(ManhattanStarbuckClient)
-  def providesManhattanStarbuckClient(
-    serviceIdentifier: ServiceIdentifier
-  ): mh.ManhattanCoordinator.MethodPerEndpoint = {
-    ManhattanClientBuilder
-      .buildManhattanV1FinagleClient(
-        ManhattanClusters.starbuck,
-        serviceIdentifier
-      )
-  }
-
-  // non-cached manhattan repositories
-
-  @Provides
-  @Singleton
-  @Named(MetricCenterUserCountingFeatureRepository)
-  def providesMetricCenterUserCountingFeatureRepository(
-    @Named(ManhattanStarbuckClient) client: mh.ManhattanCoordinator.MethodPerEndpoint
-  ): KeyValueRepository[Seq[Long], Long, rf.MCUserCountingFeatures] = {
-
-    val valueTransformer = ThriftCodec
-      .toBinary[rf.MCUserCountingFeatures]
-      .toByteBufferTransformer()
-      .flip
-
-    batchedManhattanKeyValueRepository[Long, rf.MCUserCountingFeatures](
-      client = client,
-      keyTransformer = LongKeyTransformer,
-      valueTransformer = valueTransformer,
-      appId = "wtf_ml",
-      dataset = "mc_user_counting_features_v0_starbuck",
-      timeoutInMillis = 100
-    )
-  }
-
-  /**
-   * A repository of the offline aggregate feature metadata necessary to decode
-   * DenseCompactDataRecords.
-   *
-   * This repository is expected to virtually always pick up the metadata form the local cache with
-   * nearly 0 latency.
-   */
-  @Provides
-  @Singleton
-  @Named(TimelineAggregateMetadataRepository)
-  def providesTimelineAggregateMetadataRepository(
-    @Named(ManhattanAthenaClient) client: mh.ManhattanCoordinator.MethodPerEndpoint
-  ): Repository[Int, Option[ddr.DenseFeatureMetadata]] = {
-
-    val keyTransformer = Injection
-      .connect[Int, Array[Byte]]
-      .toByteBufferTransformer()
-
-    val valueTransformer = new Transformer[ByteBuffer, ddr.DenseFeatureMetadata] {
-      private val compactProtocolFactory = new TCompactProtocol.Factory
-
-      def to(buffer: ByteBuffer): Try[ddr.DenseFeatureMetadata] = Try {
-        val transport = transportFromByteBuffer(buffer)
-        ddr.DenseFeatureMetadata.decode(compactProtocolFactory.getProtocol(transport))
-      }
-
-      // Encoding intentionally not implemented as it is never used
-      def from(metadata: ddr.DenseFeatureMetadata): Try[ByteBuffer] = ???
-    }
-
-    val inProcessCache: Cache[Int, Cached[ddr.DenseFeatureMetadata]] = InProcessLruCacheFactory(
-      ttl = Duration.fromMinutes(20),
-      lruSize = 30
-    ).apply(serializer = Transformer(_ => ???, _ => ???)) // Serialization is not necessary here.
-
-    val keyValueRepository = new ManhattanKeyValueRepository(
-      client = client,
-      keyTransformer = keyTransformer,
-      valueTransformer = valueTransformer,
-      appId = "timelines_dense_aggregates_encoding_metadata", // Expected QPS is negligible.
-      dataset = "user_session_dense_feature_metadata",
-      timeoutInMillis = 100
-    )
-
-    KeyValueRepository
-      .singular(
-        new CachingKeyValueRepository[Seq[Int], Int, ddr.DenseFeatureMetadata](
-          keyValueRepository,
-          new NonLockingCache(inProcessCache),
-          keysAsQuery[Int]
-        )
-      )
-  }
-
-  @Provides
-  @Singleton
-  @Named(RealGraphFeatureRepository)
-  def providesRealGraphFeatureRepository(
-    @Named(ManhattanAthenaClient) client: mh.ManhattanCoordinator.MethodPerEndpoint
-  ): Repository[Long, Option[uss_scala.UserSession]] = {
-    val valueTransformer = CompactScalaCodec(uss_scala.UserSession).toByteBufferTransformer().flip
-
-    KeyValueRepository.singular(
-      new ManhattanKeyValueRepository(
-        client = client,
-        keyTransformer = LongKeyTransformer,
-        valueTransformer = valueTransformer,
-        appId = "real_graph",
-        dataset = "split_real_graph_features",
-        timeoutInMillis = 100,
-      )
-    )
-  }
-
-  // cached manhattan repositories
-
-  @Provides
-  @Singleton
-  @Named(AuthorFeatureRepository)
-  def providesAuthorFeatureRepository(
-    @Named(ManhattanAthenaClient) client: mh.ManhattanCoordinator.MethodPerEndpoint,
-    @Named(HomeAuthorFeaturesCacheClient) cacheClient: Memcache
-  ): KeyValueRepository[Seq[Long], Long, af.AuthorFeatures] = {
-
-    val valueInjection = ThriftCodec
-      .toCompact[af.AuthorFeatures]
-
-    val keyValueRepository = batchedManhattanKeyValueRepository(
-      client = client,
-      keyTransformer = LongKeyTransformer,
-      valueTransformer = valueInjection.toByteBufferTransformer().flip,
-      appId = "timelines_author_feature_store_athena",
-      dataset = "timelines_author_features",
-      timeoutInMillis = 100
-    )
-
-    val remoteCacheRepo = buildMemCachedRepository(
-      keyValueRepository = keyValueRepository,
-      cacheClient = cacheClient,
-      cachePrefix = "AuthorFeatureHydrator",
-      ttl = 12.hours,
-      valueInjection = valueInjection)
-
-    buildInProcessCachedRepository(
-      keyValueRepository = remoteCacheRepo,
-      ttl = 15.minutes,
-      size = 8000,
-      valueInjection = valueInjection
-    )
-  }
-
-  @Provides
-  @Singleton
-  @Named(TwhinAuthorFollowFeatureRepository)
-  def providesTwhinAuthorFollowFeatureRepository(
-    @Named(ManhattanApolloClient) client: mh.ManhattanCoordinator.MethodPerEndpoint,
-    @Named(TwhinAuthorFollowFeatureCacheClient) cacheClient: Memcache
-  ): KeyValueRepository[Seq[Long], Long, ml.FloatTensor] = {
-    val keyValueRepository =
-      batchedManhattanKeyValueRepository(
-        client = client,
-        keyTransformer = FeatureStoreUserIdKeyTransformer,
-        valueTransformer = FloatTensorTransformer,
-        appId = "ml_features_apollo",
-        dataset = "twhin_author_follow_embedding_fsv1__v1_thrift__embedding",
-        timeoutInMillis = 100
-      )
-
-    val valueInjection: Injection[ml.FloatTensor, Array[Byte]] =
-      BinaryScalaCodec(ml.FloatTensor)
-
-    buildMemCachedRepository(
-      keyValueRepository = keyValueRepository,
-      cacheClient = cacheClient,
-      cachePrefix = "twhinAuthorFollows",
-      ttl = 24.hours,
-      valueInjection = valueInjection
-    )
-  }
-
-  @Provides
-  @Singleton
-  @Named(UserLanguagesRepository)
-  def providesUserLanguagesFeatureRepository(
-    @Named(ManhattanStarbuckClient) client: mh.ManhattanCoordinator.MethodPerEndpoint
-  ): KeyValueRepository[Seq[Long], Long, Seq[scc.ThriftLanguage]] = {
-    batchedManhattanKeyValueRepository(
-      client = client,
-      keyTransformer = LongKeyTransformer,
-      valueTransformer = LanguageTransformer,
-      appId = "user_metadata",
-      dataset = "languages",
-      timeoutInMillis = 70
-    )
-  }
-
-  @Provides
-  @Singleton
-  @Named(TwhinUserFollowFeatureRepository)
-  def providesTwhinUserFollowFeatureRepository(
-    @Named(ManhattanApolloClient) client: mh.ManhattanCoordinator.MethodPerEndpoint
-  ): KeyValueRepository[Seq[Long], Long, ml.FloatTensor] = {
-    batchedManhattanKeyValueRepository(
-      client = client,
-      keyTransformer = FeatureStoreUserIdKeyTransformer,
-      valueTransformer = FloatTensorTransformer,
-      appId = "ml_features_apollo",
-      dataset = "twhin_user_follow_embedding_fsv1__v1_thrift__embedding",
-      timeoutInMillis = 100
-    )
-  }
-
-  @Provides
-  @Singleton
-  @Named(TimelineAggregatePartARepository)
-  def providesTimelineAggregatePartARepository(
-    @Named(ManhattanApolloClient) client: mh.ManhattanCoordinator.MethodPerEndpoint,
-  ): Repository[Long, Option[uss.UserSession]] =
-    timelineAggregateRepository(
-      mhClient = client,
-      mhDataset = "timelines_aggregates_v2_features_by_user_part_a_apollo",
-      mhAppId = "timelines_aggregates_v2_features_by_user_part_a_apollo"
-    )
-
-  @Provides
-  @Singleton
-  @Named(TimelineAggregatePartBRepository)
-  def providesTimelineAggregatePartBRepository(
-    @Named(ManhattanApolloClient) client: mh.ManhattanCoordinator.MethodPerEndpoint,
-  ): Repository[Long, Option[uss.UserSession]] =
-    timelineAggregateRepository(
-      mhClient = client,
-      mhDataset = "timelines_aggregates_v2_features_by_user_part_b_apollo",
-      mhAppId = "timelines_aggregates_v2_features_by_user_part_b_apollo"
-    )
-
-  @Provides
-  @Singleton
-  @Named(TwhinUserEngagementFeatureRepository)
-  def providesTwhinUserEngagementFeatureRepository(
-    @Named(ManhattanApolloClient) client: mh.ManhattanCoordinator.MethodPerEndpoint
-  ): KeyValueRepository[Seq[Long], Long, ml.FloatTensor] = {
-
-    batchedManhattanKeyValueRepository(
-      client = client,
-      keyTransformer = FeatureStoreUserIdKeyTransformer,
-      valueTransformer = FloatTensorTransformer,
-      appId = "ml_features_apollo",
-      dataset = "twhin_user_engagement_embedding_fsv1__v1_thrift__embedding",
-      timeoutInMillis = 100
-    )
-  }
-
-  private def buildMemCachedRepository[K, V](
-    keyValueRepository: KeyValueRepository[Seq[K], K, V],
-    cacheClient: Memcache,
-    cachePrefix: String,
-    ttl: Duration,
-    valueInjection: Injection[V, Array[Byte]]
-  ): CachingKeyValueRepository[Seq[K], K, V] = {
-    val cachedSerializer = CachedSerializer.binary(
-      valueInjection.toByteArrayTransformer()
-    )
-
-    val cache = MemcacheCacheFactory(
-      cacheClient,
-      ttl,
-      PrefixKeyTransformerFactory(cachePrefix)
-    )[K, Cached[V]](cachedSerializer)
-
-    new CachingKeyValueRepository(
-      keyValueRepository,
-      new NonLockingCache(cache),
-      keysAsQuery[K]
-    )
-  }
-
-  private def buildInProcessCachedRepository[K, V](
-    keyValueRepository: KeyValueRepository[Seq[K], K, V],
-    ttl: Duration,
-    size: Int,
-    valueInjection: Injection[V, Array[Byte]]
-  ): CachingKeyValueRepository[Seq[K], K, V] = {
-    val cachedSerializer = CachedSerializer.binary(
-      valueInjection.toByteArrayTransformer()
-    )
-
-    val cache = InProcessLruCacheFactory(
-      ttl = ttl,
-      lruSize = size
-    )[K, Cached[V]](cachedSerializer)
-
-    new CachingKeyValueRepository(
-      keyValueRepository,
-      new NonLockingCache(cache),
-      keysAsQuery[K]
-    )
-  }
-
-  private def batchedManhattanKeyValueRepository[K, V](
-    client: mh.ManhattanCoordinator.MethodPerEndpoint,
-    keyTransformer: Transformer[K, ByteBuffer],
-    valueTransformer: Transformer[ByteBuffer, V],
-    appId: String,
-    dataset: String,
-    timeoutInMillis: Int,
-    chunkSize: Int = DEFAULT_RPC_CHUNK_SIZE
-  ): KeyValueRepository[Seq[K], K, V] =
-    KeyValueRepository.chunked(
-      new ManhattanKeyValueRepository(
-        client = client,
-        keyTransformer = keyTransformer,
-        valueTransformer = valueTransformer,
-        appId = appId,
-        dataset = dataset,
-        timeoutInMillis = timeoutInMillis
-      ),
-      chunker = ChunkingStrategy.equalSize(chunkSize)
-    )
-
-  private def transportFromByteBuffer(buffer: ByteBuffer): TTransport =
-    new TMemoryInputTransport(
-      buffer.array(),
-      buffer.arrayOffset() + buffer.position(),
-      buffer.remaining())
-
-  private def timelineAggregateRepository(
-    mhClient: mh.ManhattanCoordinator.MethodPerEndpoint,
-    mhDataset: String,
-    mhAppId: String
-  ): Repository[Long, Option[uss.UserSession]] = {
-    val valueInjection = ThriftCodec
-      .toCompact[uss.UserSession]
-
-    KeyValueRepository.singular(
-      new ManhattanKeyValueRepository(
-        client = mhClient,
-        keyTransformer = LongKeyTransformer,
-        valueTransformer = valueInjection.toByteBufferTransformer().flip,
-        appId = mhAppId,
-        dataset = mhDataset,
-        timeoutInMillis = 100
-      )
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ManhattanTweetImpressionStoreModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ManhattanTweetImpressionStoreModule.scala
deleted file mode 100644
index c6782665a..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ManhattanTweetImpressionStoreModule.scala
+++ /dev/null
@@ -1,58 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.inject.TwitterModule
-import com.twitter.inject.annotations.Flag
-import com.twitter.storage.client.manhattan.kv.Guarantee
-import com.twitter.storehaus_internal.manhattan.ManhattanClusters
-import com.twitter.timelines.clients.manhattan.mhv3.ManhattanClientBuilder
-import com.twitter.timelines.impressionstore.store.ManhattanTweetImpressionStoreClientConfig
-import com.twitter.timelines.impressionstore.store.ManhattanTweetImpressionStoreClient
-import com.twitter.util.Duration
-import javax.inject.Singleton
-
-object ManhattanTweetImpressionStoreModule extends TwitterModule {
-
-  private val ProdAppId = "timelines_tweet_impression_store_v2"
-  private val ProdDataset = "timelines_tweet_impressions_v2"
-  private val StagingAppId = "timelines_tweet_impression_store_staging"
-  private val StagingDataset = "timelines_tweet_impressions_staging"
-  private val StatsScope = "manhattanTweetImpressionStoreClient"
-  private val DefaultTTL = 2.days
-  private final val Timeout = "mh_impression_store.timeout"
-
-  flag[Duration](Timeout, 150.millis, "Timeout per request")
-
-  @Provides
-  @Singleton
-  def providesManhattanTweetImpressionStoreClient(
-    @Flag(Timeout) timeout: Duration,
-    serviceIdentifier: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ): ManhattanTweetImpressionStoreClient = {
-
-    val (appId, dataset) = serviceIdentifier.environment.toLowerCase match {
-      case "prod" => (ProdAppId, ProdDataset)
-      case _ => (StagingAppId, StagingDataset)
-    }
-
-    val config = ManhattanTweetImpressionStoreClientConfig(
-      cluster = ManhattanClusters.nash,
-      appId = appId,
-      dataset = dataset,
-      statsScope = StatsScope,
-      defaultGuarantee = Guarantee.SoftDcReadMyWrites,
-      defaultMaxTimeout = timeout,
-      maxRetryCount = 2,
-      isReadOnly = false,
-      serviceIdentifier = serviceIdentifier,
-      ttl = DefaultTTL
-    )
-
-    val manhattanEndpoint = ManhattanClientBuilder.buildManhattanEndpoint(config, statsReceiver)
-    ManhattanTweetImpressionStoreClient(config, manhattanEndpoint, statsReceiver)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/MemcachedFeatureRepositoryModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/MemcachedFeatureRepositoryModule.scala
deleted file mode 100644
index 8afafbfb7..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/MemcachedFeatureRepositoryModule.scala
+++ /dev/null
@@ -1,117 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.Memcached
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.HomeAuthorFeaturesCacheClient
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.RealTimeInteractionGraphUserVertexClient
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TimelinesRealTimeAggregateClient
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TwhinAuthorFollowFeatureCacheClient
-import com.twitter.inject.TwitterModule
-import com.twitter.product_mixer.shared_library.memcached_client.MemcachedClientBuilder
-import com.twitter.servo.cache.FinagleMemcacheFactory
-import com.twitter.servo.cache.Memcache
-import javax.inject.Named
-import javax.inject.Singleton
-
-object MemcachedFeatureRepositoryModule extends TwitterModule {
-
-  // This must match the respective parameter on the write path. Note that servo sets a different
-  // hasher by default. See [[com.twitter.hashing.KeyHasher]] for the list of other available
-  // hashers.
-  private val memcacheKeyHasher = "ketama"
-
-  @Provides
-  @Singleton
-  @Named(TimelinesRealTimeAggregateClient)
-  def providesTimelinesRealTimeAggregateClient(
-    serviceIdentifier: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ): Memcache = {
-    val rawClient = MemcachedClientBuilder.buildRawMemcachedClient(
-      numTries = 3,
-      numConnections = 1,
-      requestTimeout = 100.milliseconds,
-      globalTimeout = 300.milliseconds,
-      connectTimeout = 200.milliseconds,
-      acquisitionTimeout = 200.milliseconds,
-      serviceIdentifier = serviceIdentifier,
-      statsReceiver = statsReceiver
-    )
-
-    buildMemcacheClient(rawClient, "/s/cache/timelines_real_time_aggregates:twemcaches")
-  }
-
-  @Provides
-  @Singleton
-  @Named(HomeAuthorFeaturesCacheClient)
-  def providesHomeAuthorFeaturesCacheClient(
-    serviceIdentifier: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ): Memcache = {
-    val cacheClient = MemcachedClientBuilder.buildRawMemcachedClient(
-      numTries = 2,
-      numConnections = 1,
-      requestTimeout = 150.milliseconds,
-      globalTimeout = 300.milliseconds,
-      connectTimeout = 200.milliseconds,
-      acquisitionTimeout = 200.milliseconds,
-      serviceIdentifier = serviceIdentifier,
-      statsReceiver = statsReceiver
-    )
-
-    buildMemcacheClient(cacheClient, "/s/cache/timelines_author_features:twemcaches")
-  }
-
-  @Provides
-  @Singleton
-  @Named(TwhinAuthorFollowFeatureCacheClient)
-  def providesTwhinAuthorFollowFeatureCacheClient(
-    serviceIdentifier: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ): Memcache = {
-    val cacheClient = MemcachedClientBuilder.buildRawMemcachedClient(
-      numTries = 2,
-      numConnections = 1,
-      requestTimeout = 150.milliseconds,
-      globalTimeout = 300.milliseconds,
-      connectTimeout = 200.milliseconds,
-      acquisitionTimeout = 200.milliseconds,
-      serviceIdentifier = serviceIdentifier,
-      statsReceiver = statsReceiver
-    )
-
-    buildMemcacheClient(cacheClient, "/s/cache/home_twhin_author_features:twemcaches")
-  }
-
-  @Provides
-  @Singleton
-  @Named(RealTimeInteractionGraphUserVertexClient)
-  def providesRealTimeInteractionGraphUserVertexClient(
-    serviceIdentifier: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ): Memcache = {
-    val cacheClient = MemcachedClientBuilder.buildRawMemcachedClient(
-      numTries = 2,
-      numConnections = 1,
-      requestTimeout = 150.milliseconds,
-      globalTimeout = 300.milliseconds,
-      connectTimeout = 200.milliseconds,
-      acquisitionTimeout = 200.milliseconds,
-      serviceIdentifier = serviceIdentifier,
-      statsReceiver = statsReceiver
-    )
-
-    buildMemcacheClient(cacheClient, "/s/cache/realtime_interactive_graph_prod_v2:twemcaches")
-  }
-
-  private def buildMemcacheClient(cacheClient: Memcached.Client, dest: String): Memcache =
-    FinagleMemcacheFactory(
-      client = cacheClient,
-      dest = dest,
-      hashName = memcacheKeyHasher
-    )()
-
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/NaviModelClientModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/NaviModelClientModule.scala
deleted file mode 100644
index 60d580a73..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/NaviModelClientModule.scala
+++ /dev/null
@@ -1,50 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.Http
-import com.twitter.finagle.grpc.FinagleChannelBuilder
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.finagle.mtls.client.MtlsStackClient.MtlsStackClientSyntax
-import com.twitter.inject.TwitterModule
-import com.twitter.timelines.clients.predictionservice.PredictionGRPCService
-import com.twitter.util.Duration
-import io.grpc.ManagedChannel
-import javax.inject.Singleton
-
-object NaviModelClientModule extends TwitterModule {
-
-  @Singleton
-  @Provides
-  def providesPredictionGRPCService(
-    serviceIdentifier: ServiceIdentifier,
-  ): PredictionGRPCService = {
-    //  Wily path to the ML Model service (e.g. /s/ml-serving/navi-explore-ranker).
-    val modelPath = "/s/ml-serving/navi_home_recap_onnx"
-
-    val MaxPredictionTimeoutMs: Duration = 500.millis
-    val ConnectTimeoutMs: Duration = 200.millis
-    val AcquisitionTimeoutMs: Duration = 500.millis
-    val MaxRetryAttempts: Int = 2
-
-    val client = Http.client
-      .withLabel(modelPath)
-      .withMutualTls(serviceIdentifier)
-      .withRequestTimeout(MaxPredictionTimeoutMs)
-      .withTransport.connectTimeout(ConnectTimeoutMs)
-      .withSession.acquisitionTimeout(AcquisitionTimeoutMs)
-      .withHttpStats
-
-    val channel: ManagedChannel = FinagleChannelBuilder
-      .forTarget(modelPath)
-      .overrideAuthority("rustserving")
-      .maxRetryAttempts(MaxRetryAttempts)
-      .enableRetryForStatus(io.grpc.Status.RESOURCE_EXHAUSTED)
-      .enableRetryForStatus(io.grpc.Status.UNKNOWN)
-      .enableUnsafeFullyBufferingMode()
-      .httpClient(client)
-      .build()
-
-    new PredictionGRPCService(channel)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/OptimizedStratoClientModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/OptimizedStratoClientModule.scala
deleted file mode 100644
index b9e315acc..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/OptimizedStratoClientModule.scala
+++ /dev/null
@@ -1,46 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.finagle.service.Retries
-import com.twitter.finagle.service.RetryPolicy
-import com.twitter.finagle.ssl.OpportunisticTls
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.BatchedStratoClientWithModerateTimeout
-import com.twitter.inject.TwitterModule
-import com.twitter.strato.client.Client
-import com.twitter.strato.client.Strato
-import com.twitter.util.Try
-import javax.inject.Named
-import javax.inject.Singleton
-
-object OptimizedStratoClientModule extends TwitterModule {
-
-  private val ModerateStratoServerClientRequestTimeout = 500.millis
-
-  private val DefaultRetryPartialFunction: PartialFunction[Try[Nothing], Boolean] =
-    RetryPolicy.TimeoutAndWriteExceptionsOnly
-      .orElse(RetryPolicy.ChannelClosedExceptionsOnly)
-
-  protected def mkRetryPolicy(tries: Int): RetryPolicy[Try[Nothing]] =
-    RetryPolicy.tries(tries, DefaultRetryPartialFunction)
-
-  @Singleton
-  @Provides
-  @Named(BatchedStratoClientWithModerateTimeout)
-  def providesStratoClient(
-    serviceIdentifier: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ): Client = {
-    Strato.client
-      .withMutualTls(serviceIdentifier, opportunisticLevel = OpportunisticTls.Required)
-      .withSession.acquisitionTimeout(500.milliseconds)
-      .withRequestTimeout(ModerateStratoServerClientRequestTimeout)
-      .withPerRequestTimeout(ModerateStratoServerClientRequestTimeout)
-      .withRpcBatchSize(5)
-      .configured(Retries.Policy(mkRetryPolicy(1)))
-      .withStatsReceiver(statsReceiver.scope("strato_client"))
-      .build()
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/PeopleDiscoveryServiceModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/PeopleDiscoveryServiceModule.scala
deleted file mode 100644
index 47353afa7..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/PeopleDiscoveryServiceModule.scala
+++ /dev/null
@@ -1,35 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.thriftmux.MethodBuilder
-import com.twitter.finatra.mtls.thriftmux.modules.MtlsClient
-import com.twitter.inject.Injector
-import com.twitter.inject.thrift.modules.ThriftMethodBuilderClientModule
-import com.twitter.peoplediscovery.api.thriftscala.ThriftPeopleDiscoveryService
-import com.twitter.util.Duration
-
-/**
- * Copy of com.twitter.product_mixer.component_library.module.PeopleDiscoveryServiceModule
- */
-object PeopleDiscoveryServiceModule
-    extends ThriftMethodBuilderClientModule[
-      ThriftPeopleDiscoveryService.ServicePerEndpoint,
-      ThriftPeopleDiscoveryService.MethodPerEndpoint
-    ]
-    with MtlsClient {
-
-  override val label: String = "people-discovery-api"
-
-  override val dest: String = "/s/people-discovery-api/people-discovery-api:thrift"
-
-  override protected def configureMethodBuilder(
-    injector: Injector,
-    methodBuilder: MethodBuilder
-  ): MethodBuilder = {
-    methodBuilder
-      .withTimeoutPerRequest(350.millis)
-      .withTimeoutTotal(350.millis)
-  }
-
-  override protected def sessionAcquisitionTimeout: Duration = 500.milliseconds
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/PipelineFailureExceptionMapper.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/PipelineFailureExceptionMapper.scala
deleted file mode 100644
index ad15988cb..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/PipelineFailureExceptionMapper.scala
+++ /dev/null
@@ -1,29 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.twitter.finatra.thrift.exceptions.ExceptionMapper
-import com.twitter.home_mixer.{thriftscala => t}
-import com.twitter.util.logging.Logging
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.PipelineFailure
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.ProductDisabled
-import com.twitter.scrooge.ThriftException
-import com.twitter.util.Future
-import javax.inject.Singleton
-
-@Singleton
-class PipelineFailureExceptionMapper
-    extends ExceptionMapper[PipelineFailure, ThriftException]
-    with Logging {
-
-  def handleException(throwable: PipelineFailure): Future[ThriftException] = {
-    throwable match {
-      // SliceService (unlike UrtService) throws an exception when the requested product is disabled
-      case PipelineFailure(ProductDisabled, reason, _, _) =>
-        Future.exception(
-          t.ValidationExceptionList(errors =
-            Seq(t.ValidationException(t.ValidationErrorCode.ProductDisabled, reason))))
-      case _ =>
-        error("Unhandled PipelineFailure", throwable)
-        Future.exception(throwable)
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/RealGraphInNetworkScoresModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/RealGraphInNetworkScoresModule.scala
deleted file mode 100644
index 7dc6a072d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/RealGraphInNetworkScoresModule.scala
+++ /dev/null
@@ -1,26 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.google.inject.name.Named
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.RealGraphInNetworkScores
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.RealGraphManhattanEndpoint
-import com.twitter.home_mixer.store.RealGraphInNetworkScoresStore
-import com.twitter.inject.TwitterModule
-import com.twitter.storage.client.manhattan.kv.ManhattanKVEndpoint
-import com.twitter.storehaus.ReadableStore
-import com.twitter.timelines.util.CommonTypes.ViewerId
-import com.twitter.wtf.candidate.thriftscala.Candidate
-
-import javax.inject.Singleton
-
-object RealGraphInNetworkScoresModule extends TwitterModule {
-
-  @Provides
-  @Singleton
-  @Named(RealGraphInNetworkScores)
-  def providesRealGraphInNetworkScoresFeaturesStore(
-    @Named(RealGraphManhattanEndpoint) realGraphInNetworkScoresManhattanKVEndpoint: ManhattanKVEndpoint
-  ): ReadableStore[ViewerId, Seq[Candidate]] = {
-    new RealGraphInNetworkScoresStore(realGraphInNetworkScoresManhattanKVEndpoint)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/RealtimeAggregateFeatureRepositoryModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/RealtimeAggregateFeatureRepositoryModule.scala
deleted file mode 100644
index c3c545819..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/RealtimeAggregateFeatureRepositoryModule.scala
+++ /dev/null
@@ -1,231 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.google.inject.name.Named
-import com.twitter.bijection.Injection
-import com.twitter.bijection.scrooge.BinaryScalaCodec
-import com.twitter.bijection.thrift.ThriftCodec
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.EngagementsReceivedByAuthorCache
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.RealTimeInteractionGraphUserVertexCache
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.RealTimeInteractionGraphUserVertexClient
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TimelinesRealTimeAggregateClient
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TopicCountryEngagementCache
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TopicEngagementCache
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TweetCountryEngagementCache
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TweetEngagementCache
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TwitterListEngagementCache
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.UserAuthorEngagementCache
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.UserEngagementCache
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.UserTopicEngagementForNewUserCache
-import com.twitter.home_mixer.util.InjectionTransformerImplicits._
-import com.twitter.inject.TwitterModule
-import com.twitter.ml.api.DataRecord
-import com.twitter.ml.api.Feature
-import com.twitter.ml.{api => ml}
-import com.twitter.servo.cache.KeyValueTransformingReadCache
-import com.twitter.servo.cache.Memcache
-import com.twitter.servo.cache.ReadCache
-import com.twitter.servo.util.Transformer
-import com.twitter.storehaus_internal.memcache.MemcacheHelper
-import com.twitter.summingbird.batch.Batcher
-import com.twitter.summingbird_internal.bijection.BatchPairImplicits
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.AggregationKey
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.AggregationKeyInjection
-import com.twitter.wtf.real_time_interaction_graph.{thriftscala => ig}
-
-import javax.inject.Singleton
-
-object RealtimeAggregateFeatureRepositoryModule
-    extends TwitterModule
-    with RealtimeAggregateHelpers {
-
-  private val authorIdFeature = new Feature.Discrete("entities.source_author_id").getFeatureId
-  private val countryCodeFeature = new Feature.Text("geo.user_location.country_code").getFeatureId
-  private val listIdFeature = new Feature.Discrete("list.id").getFeatureId
-  private val userIdFeature = new Feature.Discrete("meta.user_id").getFeatureId
-  private val topicIdFeature = new Feature.Discrete("entities.topic_id").getFeatureId
-  private val tweetIdFeature = new Feature.Discrete("entities.source_tweet_id").getFeatureId
-
-  @Provides
-  @Singleton
-  @Named(UserTopicEngagementForNewUserCache)
-  def providesUserTopicEngagementForNewUserCache(
-    @Named(TimelinesRealTimeAggregateClient) client: Memcache
-  ): ReadCache[(Long, Long), ml.DataRecord] = {
-    new KeyValueTransformingReadCache(
-      client,
-      dataRecordValueTransformer,
-      keyTransformD2(userIdFeature, topicIdFeature)
-    )
-  }
-
-  @Provides
-  @Singleton
-  @Named(TwitterListEngagementCache)
-  def providesTwitterListEngagementCache(
-    @Named(TimelinesRealTimeAggregateClient) client: Memcache
-  ): ReadCache[Long, ml.DataRecord] = {
-    new KeyValueTransformingReadCache(
-      client,
-      dataRecordValueTransformer,
-      keyTransformD1(listIdFeature)
-    )
-  }
-
-  @Provides
-  @Singleton
-  @Named(TopicEngagementCache)
-  def providesTopicEngagementCache(
-    @Named(TimelinesRealTimeAggregateClient) client: Memcache
-  ): ReadCache[Long, ml.DataRecord] = {
-    new KeyValueTransformingReadCache(
-      client,
-      dataRecordValueTransformer,
-      keyTransformD1(topicIdFeature)
-    )
-  }
-
-  @Provides
-  @Singleton
-  @Named(UserAuthorEngagementCache)
-  def providesUserAuthorEngagementCache(
-    @Named(TimelinesRealTimeAggregateClient) client: Memcache
-  ): ReadCache[(Long, Long), ml.DataRecord] = {
-    new KeyValueTransformingReadCache(
-      client,
-      dataRecordValueTransformer,
-      keyTransformD2(userIdFeature, authorIdFeature)
-    )
-  }
-
-  @Provides
-  @Singleton
-  @Named(UserEngagementCache)
-  def providesUserEngagementCache(
-    @Named(TimelinesRealTimeAggregateClient) client: Memcache
-  ): ReadCache[Long, ml.DataRecord] = {
-    new KeyValueTransformingReadCache(
-      client,
-      dataRecordValueTransformer,
-      keyTransformD1(userIdFeature)
-    )
-  }
-
-  @Provides
-  @Singleton
-  @Named(TweetCountryEngagementCache)
-  def providesTweetCountryEngagementCache(
-    @Named(TimelinesRealTimeAggregateClient) client: Memcache
-  ): ReadCache[(Long, String), ml.DataRecord] = {
-
-    new KeyValueTransformingReadCache(
-      client,
-      dataRecordValueTransformer,
-      keyTransformD1T1(tweetIdFeature, countryCodeFeature)
-    )
-  }
-
-  @Provides
-  @Singleton
-  @Named(TweetEngagementCache)
-  def providesTweetEngagementCache(
-    @Named(TimelinesRealTimeAggregateClient) client: Memcache
-  ): ReadCache[Long, ml.DataRecord] = {
-    new KeyValueTransformingReadCache(
-      client,
-      dataRecordValueTransformer,
-      keyTransformD1(tweetIdFeature)
-    )
-  }
-
-  @Provides
-  @Singleton
-  @Named(EngagementsReceivedByAuthorCache)
-  def providesEngagementsReceivedByAuthorCache(
-    @Named(TimelinesRealTimeAggregateClient) client: Memcache
-  ): ReadCache[Long, ml.DataRecord] = {
-    new KeyValueTransformingReadCache(
-      client,
-      dataRecordValueTransformer,
-      keyTransformD1(authorIdFeature)
-    )
-  }
-
-  @Provides
-  @Singleton
-  @Named(TopicCountryEngagementCache)
-  def providesTopicCountryEngagementCache(
-    @Named(TimelinesRealTimeAggregateClient) client: Memcache
-  ): ReadCache[(Long, String), ml.DataRecord] = {
-    new KeyValueTransformingReadCache(
-      client,
-      dataRecordValueTransformer,
-      keyTransformD1T1(topicIdFeature, countryCodeFeature)
-    )
-  }
-
-  @Provides
-  @Singleton
-  @Named(RealTimeInteractionGraphUserVertexCache)
-  def providesRealTimeInteractionGraphUserVertexCache(
-    @Named(RealTimeInteractionGraphUserVertexClient) client: Memcache
-  ): ReadCache[Long, ig.UserVertex] = {
-
-    val valueTransformer = BinaryScalaCodec(ig.UserVertex).toByteArrayTransformer()
-
-    val underlyingKey: Long => String = {
-      val cacheKeyPrefix = "user_vertex"
-      val defaultBatchID = Batcher.unit.currentBatch
-      val batchPairInjection = BatchPairImplicits.keyInjection(Injection.connect[Long, Array[Byte]])
-      MemcacheHelper
-        .keyEncoder(cacheKeyPrefix)(batchPairInjection)
-        .compose((k: Long) => (k, defaultBatchID))
-    }
-
-    new KeyValueTransformingReadCache(
-      client,
-      valueTransformer,
-      underlyingKey
-    )
-  }
-}
-
-trait RealtimeAggregateHelpers {
-
-  private def customKeyBuilder[K](prefix: String, f: K => Array[Byte]): K => String = {
-    // intentionally not implementing injection inverse because it is never used
-    def g(arr: Array[Byte]) = ???
-
-    MemcacheHelper.keyEncoder(prefix)(Injection.build(f)(g))
-  }
-
-  private val keyEncoder: AggregationKey => String = {
-    val cacheKeyPrefix = ""
-    val defaultBatchID = Batcher.unit.currentBatch
-
-    val batchPairInjection = BatchPairImplicits.keyInjection(AggregationKeyInjection)
-    customKeyBuilder(cacheKeyPrefix, batchPairInjection)
-      .compose((k: AggregationKey) => (k, defaultBatchID))
-  }
-
-  protected def keyTransformD1(f1: Long)(key: Long): String = {
-    val aggregationKey = AggregationKey(Map(f1 -> key), Map.empty)
-    keyEncoder(aggregationKey)
-  }
-
-  protected def keyTransformD2(f1: Long, f2: Long)(keys: (Long, Long)): String = {
-    val (k1, k2) = keys
-    val aggregationKey = AggregationKey(Map(f1 -> k1, f2 -> k2), Map.empty)
-    keyEncoder(aggregationKey)
-  }
-
-  protected def keyTransformD1T1(f1: Long, f2: Long)(keys: (Long, String)): String = {
-    val (k1, k2) = keys
-    val aggregationKey = AggregationKey(Map(f1 -> k1), Map(f2 -> k2))
-    keyEncoder(aggregationKey)
-  }
-
-  protected val dataRecordValueTransformer: Transformer[DataRecord, Array[Byte]] = ThriftCodec
-    .toCompact[ml.DataRecord]
-    .toByteArrayTransformer()
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ScoredTweetsMemcacheModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ScoredTweetsMemcacheModule.scala
deleted file mode 100644
index 4bed31c5c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ScoredTweetsMemcacheModule.scala
+++ /dev/null
@@ -1,61 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.{thriftscala => t}
-import com.twitter.inject.TwitterModule
-import com.twitter.product_mixer.shared_library.memcached_client.MemcachedClientBuilder
-import com.twitter.servo.cache.FinagleMemcache
-import com.twitter.servo.cache.KeyTransformer
-import com.twitter.servo.cache.KeyValueTransformingTtlCache
-import com.twitter.servo.cache.Serializer
-import com.twitter.servo.cache.ThriftSerializer
-import com.twitter.servo.cache.TtlCache
-import com.twitter.timelines.model.UserId
-import org.apache.thrift.protocol.TCompactProtocol
-
-import javax.inject.Singleton
-
-object ScoredTweetsMemcacheModule extends TwitterModule {
-
-  private val ScopeName = "ScoredTweetsCache"
-  private val ProdDestName = "/srv#/prod/local/cache/home_scored_tweets:twemcaches"
-  private val StagingDestName = "/srv#/test/local/cache/twemcache_home_scored_tweets:twemcaches"
-  private val scoredTweetsSerializer: Serializer[t.ScoredTweetsResponse] =
-    new ThriftSerializer[t.ScoredTweetsResponse](
-      t.ScoredTweetsResponse,
-      new TCompactProtocol.Factory())
-  private val userIdKeyTransformer: KeyTransformer[UserId] = (userId: UserId) => userId.toString
-
-  @Singleton
-  @Provides
-  def providesScoredTweetsCache(
-    serviceIdentifier: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ): TtlCache[UserId, t.ScoredTweetsResponse] = {
-    val destName = serviceIdentifier.environment.toLowerCase match {
-      case "prod" => ProdDestName
-      case _ => StagingDestName
-    }
-    val client = MemcachedClientBuilder.buildMemcachedClient(
-      destName = destName,
-      numTries = 2,
-      numConnections = 1,
-      requestTimeout = 200.milliseconds,
-      globalTimeout = 400.milliseconds,
-      connectTimeout = 100.milliseconds,
-      acquisitionTimeout = 100.milliseconds,
-      serviceIdentifier = serviceIdentifier,
-      statsReceiver = statsReceiver.scope(ScopeName)
-    )
-    val underlyingCache = new FinagleMemcache(client)
-
-    new KeyValueTransformingTtlCache(
-      underlyingCache = underlyingCache,
-      transformer = scoredTweetsSerializer,
-      underlyingKey = userIdKeyTransformer
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ScribeEventPublisherModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ScribeEventPublisherModule.scala
deleted file mode 100644
index 99bf61630..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ScribeEventPublisherModule.scala
+++ /dev/null
@@ -1,77 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.twitter.clientapp.{thriftscala => ca}
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.CandidateFeaturesScribeEventPublisher
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.CommonFeaturesScribeEventPublisher
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.MinimumFeaturesScribeEventPublisher
-import com.twitter.inject.TwitterModule
-import com.twitter.logpipeline.client.EventPublisherManager
-import com.twitter.logpipeline.client.common.EventPublisher
-import com.twitter.logpipeline.client.serializers.EventLogMsgTBinarySerializer
-import com.twitter.logpipeline.client.serializers.EventLogMsgThriftStructSerializer
-import com.twitter.timelines.suggests.common.poly_data_record.{thriftjava => pldr}
-import com.twitter.timelines.timeline_logging.{thriftscala => tl}
-import javax.inject.Named
-import javax.inject.Singleton
-
-object ScribeEventPublisherModule extends TwitterModule {
-
-  val ClientEventLogCategory = "client_event"
-  val ServedCandidatesLogCategory = "home_timeline_served_candidates_flattened"
-  val ScoredCandidatesLogCategory = "home_timeline_scored_candidates"
-  val ServedCommonFeaturesLogCategory = "tq_served_common_features_offline"
-  val ServedCandidateFeaturesLogCategory = "tq_served_candidate_features_offline"
-  val ServedMinimumFeaturesLogCategory = "tq_served_minimum_features_offline"
-
-  @Provides
-  @Singleton
-  def providesClientEventsScribeEventPublisher: EventPublisher[ca.LogEvent] = {
-    val serializer = EventLogMsgThriftStructSerializer.getNewSerializer[ca.LogEvent]()
-    EventPublisherManager.buildScribeLogPipelinePublisher(ClientEventLogCategory, serializer)
-  }
-
-  @Provides
-  @Singleton
-  @Named(CommonFeaturesScribeEventPublisher)
-  def providesCommonFeaturesScribeEventPublisher: EventPublisher[pldr.PolyDataRecord] = {
-    val serializer = EventLogMsgTBinarySerializer.getNewSerializer
-    EventPublisherManager.buildScribeLogPipelinePublisher(
-      ServedCommonFeaturesLogCategory,
-      serializer)
-  }
-
-  @Provides
-  @Singleton
-  @Named(CandidateFeaturesScribeEventPublisher)
-  def providesCandidateFeaturesScribeEventPublisher: EventPublisher[pldr.PolyDataRecord] = {
-    val serializer = EventLogMsgTBinarySerializer.getNewSerializer
-    EventPublisherManager.buildScribeLogPipelinePublisher(
-      ServedCandidateFeaturesLogCategory,
-      serializer)
-  }
-
-  @Provides
-  @Singleton
-  @Named(MinimumFeaturesScribeEventPublisher)
-  def providesMinimumFeaturesScribeEventPublisher: EventPublisher[pldr.PolyDataRecord] = {
-    val serializer = EventLogMsgTBinarySerializer.getNewSerializer
-    EventPublisherManager.buildScribeLogPipelinePublisher(
-      ServedMinimumFeaturesLogCategory,
-      serializer)
-  }
-
-  @Provides
-  @Singleton
-  def providesServedCandidatesScribeEventPublisher: EventPublisher[tl.ServedEntry] = {
-    val serializer = EventLogMsgThriftStructSerializer.getNewSerializer[tl.ServedEntry]()
-    EventPublisherManager.buildScribeLogPipelinePublisher(ServedCandidatesLogCategory, serializer)
-  }
-
-  @Provides
-  @Singleton
-  def provideScoredCandidatesScribeEventPublisher: EventPublisher[tl.ScoredCandidate] = {
-    val serializer = EventLogMsgThriftStructSerializer.getNewSerializer[tl.ScoredCandidate]()
-    EventPublisherManager.buildScribeLogPipelinePublisher(ScoredCandidatesLogCategory, serializer)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/SimClustersRecentEngagementsClientModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/SimClustersRecentEngagementsClientModule.scala
deleted file mode 100644
index 7e819d51e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/SimClustersRecentEngagementsClientModule.scala
+++ /dev/null
@@ -1,23 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.BatchedStratoClientWithModerateTimeout
-import com.twitter.inject.TwitterModule
-import com.twitter.strato.client.Client
-import com.twitter.timelines.clients.strato.twistly.SimClustersRecentEngagementSimilarityClient
-import com.twitter.timelines.clients.strato.twistly.SimClustersRecentEngagementSimilarityClientImpl
-import javax.inject.Named
-import javax.inject.Singleton
-
-object SimClustersRecentEngagementsClientModule extends TwitterModule {
-  @Singleton
-  @Provides
-  def providesSimilarityClient(
-    @Named(BatchedStratoClientWithModerateTimeout)
-    stratoClient: Client,
-    statsReceiver: StatsReceiver
-  ): SimClustersRecentEngagementSimilarityClient = {
-    new SimClustersRecentEngagementSimilarityClientImpl(stratoClient, statsReceiver)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/StaleTweetsCacheModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/StaleTweetsCacheModule.scala
deleted file mode 100644
index 301dc51c2..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/StaleTweetsCacheModule.scala
+++ /dev/null
@@ -1,38 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.google.inject.name.Named
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.memcached.{Client => MemcachedClient}
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.hashing.KeyHasher
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.StaleTweetsCache
-import com.twitter.inject.TwitterModule
-import com.twitter.product_mixer.shared_library.memcached_client.MemcachedClientBuilder
-import javax.inject.Singleton
-
-object StaleTweetsCacheModule extends TwitterModule {
-
-  @Singleton
-  @Provides
-  @Named(StaleTweetsCache)
-  def providesCache(
-    serviceIdentifier: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ): MemcachedClient = {
-    MemcachedClientBuilder.buildMemcachedClient(
-      destName = "/srv#/prod/local/cache/staletweetscache:twemcaches",
-      numTries = 3,
-      numConnections = 1,
-      requestTimeout = 200.milliseconds,
-      globalTimeout = 500.milliseconds,
-      connectTimeout = 200.milliseconds,
-      acquisitionTimeout = 200.milliseconds,
-      serviceIdentifier = serviceIdentifier,
-      statsReceiver = statsReceiver,
-      failureAccrualPolicy = None,
-      keyHasher = Some(KeyHasher.FNV1_32)
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ThriftFeatureRepositoryModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ThriftFeatureRepositoryModule.scala
deleted file mode 100644
index dcbf62451..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/ThriftFeatureRepositoryModule.scala
+++ /dev/null
@@ -1,375 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.twitter.conversions.DurationOps._
-import com.twitter.conversions.PercentOps._
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.finagle.thrift.ClientId
-import com.twitter.graph_feature_service.{thriftscala => gfs}
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.EarlybirdRepository
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.GraphTwoHopRepository
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.InterestsThriftServiceClient
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TweetypieContentRepository
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.UserFollowedTopicIdsRepository
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.UtegSocialProofRepository
-import com.twitter.home_mixer.util.earlybird.EarlybirdRequestUtil
-import com.twitter.home_mixer.util.tweetypie.RequestFields
-import com.twitter.inject.TwitterModule
-import com.twitter.interests.{thriftscala => int}
-import com.twitter.product_mixer.shared_library.memcached_client.MemcachedClientBuilder
-import com.twitter.product_mixer.shared_library.thrift_client.FinagleThriftClientBuilder
-import com.twitter.product_mixer.shared_library.thrift_client.Idempotent
-import com.twitter.recos.recos_common.{thriftscala => rc}
-import com.twitter.recos.user_tweet_entity_graph.{thriftscala => uteg}
-import com.twitter.search.earlybird.{thriftscala => eb}
-import com.twitter.servo.cache.Cached
-import com.twitter.servo.cache.CachedSerializer
-import com.twitter.servo.cache.FinagleMemcacheFactory
-import com.twitter.servo.cache.MemcacheCacheFactory
-import com.twitter.servo.cache.NonLockingCache
-import com.twitter.servo.cache.ThriftSerializer
-import com.twitter.servo.keyvalue.KeyValueResultBuilder
-import com.twitter.servo.repository.CachingKeyValueRepository
-import com.twitter.servo.repository.ChunkingStrategy
-import com.twitter.servo.repository.KeyValueRepository
-import com.twitter.servo.repository.KeyValueResult
-import com.twitter.servo.repository.keysAsQuery
-import com.twitter.spam.rtf.{thriftscala => sp}
-import com.twitter.tweetypie.{thriftscala => tp}
-import com.twitter.util.Future
-import com.twitter.util.Return
-import javax.inject.Named
-import javax.inject.Singleton
-import org.apache.thrift.protocol.TCompactProtocol
-
-object ThriftFeatureRepositoryModule extends TwitterModule {
-
-  private val DefaultRPCChunkSize = 50
-  private val GFSInteractionIdsLimit = 10
-
-  type EarlybirdQuery = (Seq[Long], Long)
-  type UtegQuery = (Seq[Long], (Long, Map[Long, Double]))
-
-  @Provides
-  @Singleton
-  @Named(InterestsThriftServiceClient)
-  def providesInterestsThriftServiceClient(
-    clientId: ClientId,
-    serviceIdentifier: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ): int.InterestsThriftService.MethodPerEndpoint = {
-    FinagleThriftClientBuilder
-      .buildFinagleMethodPerEndpoint[
-        int.InterestsThriftService.ServicePerEndpoint,
-        int.InterestsThriftService.MethodPerEndpoint](
-        serviceIdentifier = serviceIdentifier,
-        clientId = clientId,
-        dest = "/s/interests-thrift-service/interests-thrift-service",
-        label = "interests",
-        statsReceiver = statsReceiver,
-        idempotency = Idempotent(1.percent),
-        timeoutPerRequest = 350.milliseconds,
-        timeoutTotal = 350.milliseconds
-      )
-  }
-
-  @Provides
-  @Singleton
-  @Named(UserFollowedTopicIdsRepository)
-  def providesUserFollowedTopicIdsRepository(
-    @Named(InterestsThriftServiceClient) client: int.InterestsThriftService.MethodPerEndpoint
-  ): KeyValueRepository[Seq[Long], Long, Seq[Long]] = {
-
-    val lookupContext = Some(
-      int.ExplicitInterestLookupContext(Some(Seq(int.InterestRelationType.Followed)))
-    )
-
-    def lookup(userId: Long): Future[Seq[Long]] = {
-      client.getUserExplicitInterests(userId, lookupContext).map { interests =>
-        interests.flatMap {
-          _.interestId match {
-            case int.InterestId.SemanticCore(semanticCoreInterest) => Some(semanticCoreInterest.id)
-            case _ => None
-          }
-        }
-      }
-    }
-
-    val keyValueRepository = toRepository(lookup)
-
-    keyValueRepository
-  }
-
-  @Provides
-  @Singleton
-  @Named(UtegSocialProofRepository)
-  def providesUtegSocialProofRepository(
-    clientId: ClientId,
-    serviceIdentifier: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ): KeyValueRepository[UtegQuery, Long, uteg.TweetRecommendation] = {
-    val client = FinagleThriftClientBuilder.buildFinagleMethodPerEndpoint[
-      uteg.UserTweetEntityGraph.ServicePerEndpoint,
-      uteg.UserTweetEntityGraph.MethodPerEndpoint](
-      serviceIdentifier = serviceIdentifier,
-      clientId = clientId,
-      dest = "/s/cassowary/user_tweet_entity_graph",
-      label = "uteg-social-proof-repo",
-      statsReceiver = statsReceiver,
-      idempotency = Idempotent(1.percent),
-      timeoutPerRequest = 150.milliseconds,
-      timeoutTotal = 250.milliseconds
-    )
-
-    val utegSocialProofTypes = Seq(
-      rc.SocialProofType.Favorite,
-      rc.SocialProofType.Retweet,
-      rc.SocialProofType.Reply
-    )
-
-    def lookup(
-      tweetIds: Seq[Long],
-      view: (Long, Map[Long, Double])
-    ): Future[Seq[Option[uteg.TweetRecommendation]]] = {
-      val (userId, seedsWithWeights) = view
-      val socialProofRequest = uteg.SocialProofRequest(
-        requesterId = Some(userId),
-        seedsWithWeights = seedsWithWeights,
-        inputTweets = tweetIds,
-        socialProofTypes = Some(utegSocialProofTypes)
-      )
-      client.findTweetSocialProofs(socialProofRequest).map { result =>
-        val resultMap = result.socialProofResults.map(t => t.tweetId -> t).toMap
-        tweetIds.map(resultMap.get)
-      }
-    }
-
-    toRepositoryBatchWithView(lookup, chunkSize = 200)
-  }
-
-  @Provides
-  @Singleton
-  @Named(TweetypieContentRepository)
-  def providesTweetypieContentRepository(
-    clientId: ClientId,
-    serviceIdentifier: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ): KeyValueRepository[Seq[Long], Long, tp.Tweet] = {
-    val client = FinagleThriftClientBuilder
-      .buildFinagleMethodPerEndpoint[
-        tp.TweetService.ServicePerEndpoint,
-        tp.TweetService.MethodPerEndpoint](
-        serviceIdentifier = serviceIdentifier,
-        clientId = clientId,
-        dest = "/s/tweetypie/tweetypie",
-        label = "tweetypie-content-repo",
-        statsReceiver = statsReceiver,
-        idempotency = Idempotent(1.percent),
-        timeoutPerRequest = 300.milliseconds,
-        timeoutTotal = 500.milliseconds
-      )
-
-    def lookup(tweetIds: Seq[Long]): Future[Seq[Option[tp.Tweet]]] = {
-      val getTweetFieldsOptions = tp.GetTweetFieldsOptions(
-        tweetIncludes = RequestFields.ContentFields,
-        includeRetweetedTweet = false,
-        includeQuotedTweet = false,
-        forUserId = None,
-        safetyLevel = Some(sp.SafetyLevel.FilterNone),
-        visibilityPolicy = tp.TweetVisibilityPolicy.NoFiltering
-      )
-
-      val request = tp.GetTweetFieldsRequest(tweetIds = tweetIds, options = getTweetFieldsOptions)
-
-      client.getTweetFields(request).map { results =>
-        results.map {
-          case tp.GetTweetFieldsResult(_, tp.TweetFieldsResultState.Found(found), _, _) =>
-            Some(found.tweet)
-          case _ => None
-        }
-      }
-    }
-
-    val keyValueRepository = toRepositoryBatch(lookup, chunkSize = 20)
-
-    val cacheClient = MemcachedClientBuilder.buildRawMemcachedClient(
-      numTries = 1,
-      numConnections = 1,
-      requestTimeout = 200.milliseconds,
-      globalTimeout = 200.milliseconds,
-      connectTimeout = 200.milliseconds,
-      acquisitionTimeout = 200.milliseconds,
-      serviceIdentifier = serviceIdentifier,
-      statsReceiver = statsReceiver
-    )
-
-    val finagleMemcacheFactory =
-      FinagleMemcacheFactory(cacheClient, "/s/cache/home_content_features:twemcaches")
-    val cacheValueTransformer =
-      new ThriftSerializer[tp.Tweet](tp.Tweet, new TCompactProtocol.Factory())
-    val cachedSerializer = CachedSerializer.binary(cacheValueTransformer)
-
-    val cache = MemcacheCacheFactory(
-      memcache = finagleMemcacheFactory(),
-      ttl = 48.hours
-    )[Long, Cached[tp.Tweet]](cachedSerializer)
-
-    val lockingCache = new NonLockingCache(cache)
-    val cachedKeyValueRepository = new CachingKeyValueRepository(
-      keyValueRepository,
-      lockingCache,
-      keysAsQuery[Long]
-    )
-    cachedKeyValueRepository
-  }
-
-  @Provides
-  @Singleton
-  @Named(GraphTwoHopRepository)
-  def providesGraphTwoHopRepository(
-    clientId: ClientId,
-    serviceIdentifier: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ): KeyValueRepository[(Seq[Long], Long), Long, Seq[gfs.IntersectionValue]] = {
-    val client = FinagleThriftClientBuilder
-      .buildFinagleMethodPerEndpoint[gfs.Server.ServicePerEndpoint, gfs.Server.MethodPerEndpoint](
-        serviceIdentifier = serviceIdentifier,
-        clientId = clientId,
-        dest = "/s/cassowary/graph_feature_service-server",
-        label = "gfs-repo",
-        statsReceiver = statsReceiver,
-        idempotency = Idempotent(1.percent),
-        timeoutPerRequest = 350.milliseconds,
-        timeoutTotal = 500.milliseconds
-      )
-
-    def lookup(
-      userIds: Seq[Long],
-      viewerId: Long
-    ): Future[Seq[Option[Seq[gfs.IntersectionValue]]]] = {
-      val gfsIntersectionRequest = gfs.GfsPresetIntersectionRequest(
-        userId = viewerId,
-        candidateUserIds = userIds,
-        presetFeatureTypes = gfs.PresetFeatureTypes.HtlTwoHop,
-        intersectionIdLimit = Some(GFSInteractionIdsLimit)
-      )
-
-      client
-        .getPresetIntersection(gfsIntersectionRequest)
-        .map { graphFeatureServiceResponse =>
-          val resultMap = graphFeatureServiceResponse.results
-            .map(result => result.candidateUserId -> result.intersectionValues).toMap
-          userIds.map(resultMap.get(_))
-        }
-    }
-
-    toRepositoryBatchWithView(lookup, chunkSize = 200)
-  }
-
-  @Provides
-  @Singleton
-  @Named(EarlybirdRepository)
-  def providesEarlybirdSearchRepository(
-    client: eb.EarlybirdService.MethodPerEndpoint,
-    clientId: ClientId
-  ): KeyValueRepository[EarlybirdQuery, Long, eb.ThriftSearchResult] = {
-
-    def lookup(
-      tweetIds: Seq[Long],
-      viewerId: Long
-    ): Future[Seq[Option[eb.ThriftSearchResult]]] = {
-      val request = EarlybirdRequestUtil.getTweetsFeaturesRequest(
-        userId = Some(viewerId),
-        tweetIds = Some(tweetIds),
-        clientId = Some(clientId.name),
-        authorScoreMap = None,
-        tensorflowModel = Some("timelines_rectweet_replica")
-      )
-
-      client
-        .search(request).map { response =>
-          val resultMap = response.searchResults
-            .map(_.results.map { result => result.id -> result }.toMap).getOrElse(Map.empty)
-          tweetIds.map(resultMap.get)
-        }
-    }
-    toRepositoryBatchWithView(lookup)
-  }
-
-  protected def toRepository[K, V](
-    hydrate: K => Future[V]
-  ): KeyValueRepository[Seq[K], K, V] = {
-    def asRepository(keys: Seq[K]): Future[KeyValueResult[K, V]] = {
-      Future.collect(keys.map(hydrate(_).liftToTry)).map { results =>
-        keys
-          .zip(results)
-          .foldLeft(new KeyValueResultBuilder[K, V]()) {
-            case (bldr, (k, result)) =>
-              result match {
-                case Return(v) => bldr.addFound(k, v)
-                case _ => bldr.addNotFound(k)
-              }
-          }.result
-      }
-    }
-
-    asRepository
-  }
-
-  protected def toRepositoryBatch[K, V](
-    hydrate: Seq[K] => Future[Seq[Option[V]]],
-    chunkSize: Int = DefaultRPCChunkSize
-  ): KeyValueRepository[Seq[K], K, V] = {
-    def repository(keys: Seq[K]): Future[KeyValueResult[K, V]] =
-      batchRepositoryProcess(keys, hydrate(keys))
-
-    KeyValueRepository.chunked(repository, ChunkingStrategy.equalSize(chunkSize))
-  }
-
-  protected def toRepositoryBatchWithView[K, T, V](
-    hydrate: (Seq[K], T) => Future[Seq[Option[V]]],
-    chunkSize: Int = DefaultRPCChunkSize
-  ): KeyValueRepository[(Seq[K], T), K, V] = {
-    def repository(input: (Seq[K], T)): Future[KeyValueResult[K, V]] = {
-      val (keys, view) = input
-      batchRepositoryProcess(keys, hydrate(keys, view))
-    }
-
-    KeyValueRepository.chunked(repository, CustomChunkingStrategy.equalSizeWithView(chunkSize))
-  }
-
-  private def batchRepositoryProcess[K, V](
-    keys: Seq[K],
-    f: Future[Seq[Option[V]]]
-  ): Future[KeyValueResult[K, V]] = {
-    f.liftToTry
-      .map {
-        case Return(values) =>
-          keys
-            .zip(values)
-            .foldLeft(new KeyValueResultBuilder[K, V]()) {
-              case (bldr, (k, value)) =>
-                value match {
-                  case Some(v) => bldr.addFound(k, v)
-                  case _ => bldr.addNotFound(k)
-                }
-            }.result
-        case _ =>
-          keys
-            .foldLeft(new KeyValueResultBuilder[K, V]()) {
-              case (bldr, k) => bldr.addNotFound(k)
-            }.result
-      }
-  }
-
-  // Use only for cases not already covered by Servo's [[ChunkingStrategy]]
-  object CustomChunkingStrategy {
-    def equalSizeWithView[K, T](maxSize: Int): ((Seq[K], T)) => Seq[(Seq[K], T)] = {
-      case (keys, view) =>
-        ChunkingStrategy
-          .equalSize[K](maxSize)(keys)
-          .map { chunk: Seq[K] => (chunk, view) }
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/TimelinesPersistenceStoreClientModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/TimelinesPersistenceStoreClientModule.scala
deleted file mode 100644
index 4af39fd32..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/TimelinesPersistenceStoreClientModule.scala
+++ /dev/null
@@ -1,49 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.inject.TwitterModule
-import com.twitter.inject.annotations.Flag
-import com.twitter.timelinemixer.clients.persistence.TimelinePersistenceManhattanClientBuilder
-import com.twitter.timelinemixer.clients.persistence.TimelinePersistenceManhattanClientConfig
-import com.twitter.timelinemixer.clients.persistence.TimelineResponseBatchesClient
-import com.twitter.timelinemixer.clients.persistence.TimelineResponseV3
-import com.twitter.util.Duration
-import javax.inject.Singleton
-
-object TimelinesPersistenceStoreClientModule extends TwitterModule {
-  private val StagingDataset = "timeline_response_batches_v5_nonprod"
-  private val ProdDataset = "timeline_response_batches_v5"
-  private final val Timeout = "mh_persistence_store.timeout"
-
-  flag[Duration](Timeout, 300.millis, "Timeout per request")
-
-  @Provides
-  @Singleton
-  def providesTimelinesPersistenceStoreClient(
-    @Flag(Timeout) timeout: Duration,
-    injectedServiceIdentifier: ServiceIdentifier,
-    statsReceiver: StatsReceiver
-  ): TimelineResponseBatchesClient[TimelineResponseV3] = {
-    val timelineResponseBatchesDataset =
-      injectedServiceIdentifier.environment.toLowerCase match {
-        case "prod" => ProdDataset
-        case _ => StagingDataset
-      }
-
-    val timelineResponseBatchesConfig = new TimelinePersistenceManhattanClientConfig {
-      val dataset = timelineResponseBatchesDataset
-      val isReadOnly = false
-      val serviceIdentifier = injectedServiceIdentifier
-      override val defaultMaxTimeout = timeout
-      override val maxRetryCount = 2
-    }
-
-    TimelinePersistenceManhattanClientBuilder.buildTimelineResponseV3BatchesClient(
-      timelineResponseBatchesConfig,
-      statsReceiver
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/TopicSocialProofClientModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/TopicSocialProofClientModule.scala
deleted file mode 100644
index 9333e0f84..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/TopicSocialProofClientModule.scala
+++ /dev/null
@@ -1,22 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.BatchedStratoClientWithModerateTimeout
-import com.twitter.inject.TwitterModule
-import com.twitter.strato.client.Client
-import com.twitter.timelines.clients.strato.topics.TopicSocialProofClient
-import com.twitter.timelines.clients.strato.topics.TopicSocialProofClientImpl
-import javax.inject.Named
-import javax.inject.Singleton
-
-object TopicSocialProofClientModule extends TwitterModule {
-
-  @Singleton
-  @Provides
-  def providesSimilarityClient(
-    @Named(BatchedStratoClientWithModerateTimeout)
-    stratoClient: Client,
-    statsReceiver: StatsReceiver
-  ): TopicSocialProofClient = new TopicSocialProofClientImpl(stratoClient, statsReceiver)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/TweetyPieClientModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/TweetyPieClientModule.scala
deleted file mode 100644
index 1eb49206c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/TweetyPieClientModule.scala
+++ /dev/null
@@ -1,63 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.Provides
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.finagle.thrift.ClientId
-import com.twitter.finagle.thriftmux.MethodBuilder
-import com.twitter.finatra.mtls.thriftmux.modules.MtlsClient
-import com.twitter.inject.Injector
-import com.twitter.inject.annotations.Flags
-import com.twitter.inject.thrift.modules.ThriftMethodBuilderClientModule
-import com.twitter.stitch.tweetypie.TweetyPie
-import com.twitter.tweetypie.thriftscala.TweetService
-import com.twitter.util.Duration
-import javax.inject.Singleton
-
-/**
- * Idempotent Tweetypie Thrift and Stitch client.
- */
-object TweetypieClientModule
-    extends ThriftMethodBuilderClientModule[
-      TweetService.ServicePerEndpoint,
-      TweetService.MethodPerEndpoint
-    ]
-    with MtlsClient {
-
-  private val TimeoutRequest = "tweetypie.timeout_request"
-  private val TimeoutTotal = "tweetypie.timeout_total"
-
-  flag[Duration](TimeoutRequest, 1000.millis, "Timeout per request")
-  flag[Duration](TimeoutTotal, 1000.millis, "Total timeout")
-
-  override val label: String = "tweetypie"
-  override val dest: String = "/s/tweetypie/tweetypie"
-
-  @Singleton
-  @Provides
-  def providesTweetypieStitchClient(tweetService: TweetService.MethodPerEndpoint): TweetyPie =
-    new TweetyPie(tweetService)
-
-  /**
-   * TweetyPie client id must be in the form of {service.env} or it will not be treated as an
-   * unauthorized client
-   */
-  override protected def clientId(injector: Injector): ClientId = {
-    val serviceIdentifier = injector.instance[ServiceIdentifier]
-    ClientId(s"${serviceIdentifier.service}.${serviceIdentifier.environment}")
-  }
-
-  override protected def configureMethodBuilder(
-    injector: Injector,
-    methodBuilder: MethodBuilder
-  ): MethodBuilder = {
-    val timeoutRequest = injector.instance[Duration](Flags.named(TimeoutRequest))
-    val timeoutTotal = injector.instance[Duration](Flags.named(TimeoutTotal))
-
-    methodBuilder
-      .withTimeoutPerRequest(timeoutRequest)
-      .withTimeoutTotal(timeoutTotal)
-  }
-
-  override protected def sessionAcquisitionTimeout: Duration = 500.millis
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/TweetypieStaticEntitiesCacheClientModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/TweetypieStaticEntitiesCacheClientModule.scala
deleted file mode 100644
index 13283e4b3..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/module/TweetypieStaticEntitiesCacheClientModule.scala
+++ /dev/null
@@ -1,70 +0,0 @@
-package com.twitter.home_mixer.module
-
-import com.google.inject.name.Named
-import com.google.inject.Provides
-import com.twitter.conversions.DurationOps.RichDuration
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TweetypieStaticEntitiesCache
-import com.twitter.inject.TwitterModule
-import com.twitter.product_mixer.shared_library.memcached_client.MemcachedClientBuilder
-import com.twitter.servo.cache.FinagleMemcache
-import com.twitter.servo.cache.KeyTransformer
-import com.twitter.servo.cache.KeyValueTransformingTtlCache
-import com.twitter.servo.cache.ObservableTtlCache
-import com.twitter.servo.cache.Serializer
-import com.twitter.servo.cache.ThriftSerializer
-import com.twitter.servo.cache.TtlCache
-import com.twitter.tweetypie.{thriftscala => tp}
-import javax.inject.Singleton
-import org.apache.thrift.protocol.TCompactProtocol
-
-object TweetypieStaticEntitiesCacheClientModule extends TwitterModule {
-
-  private val ScopeName = "TweetypieStaticEntitiesMemcache"
-  private val ProdDest = "/srv#/prod/local/cache/timelinescorer_tweet_core_data:twemcaches"
-
-  private val tweetsSerializer: Serializer[tp.Tweet] = {
-    new ThriftSerializer[tp.Tweet](tp.Tweet, new TCompactProtocol.Factory())
-  }
-  private val keyTransformer: KeyTransformer[Long] = { tweetId => tweetId.toString }
-
-  @Provides
-  @Singleton
-  @Named(TweetypieStaticEntitiesCache)
-  def providesTweetypieStaticEntitiesCache(
-    statsReceiver: StatsReceiver,
-    serviceIdentifier: ServiceIdentifier
-  ): TtlCache[Long, tp.Tweet] = {
-    val memCacheClient = MemcachedClientBuilder.buildMemcachedClient(
-      destName = ProdDest,
-      numTries = 1,
-      numConnections = 1,
-      requestTimeout = 50.milliseconds,
-      globalTimeout = 100.milliseconds,
-      connectTimeout = 100.milliseconds,
-      acquisitionTimeout = 100.milliseconds,
-      serviceIdentifier = serviceIdentifier,
-      statsReceiver = statsReceiver
-    )
-    mkCache(new FinagleMemcache(memCacheClient), statsReceiver)
-  }
-
-  private def mkCache(
-    finagleMemcache: FinagleMemcache,
-    statsReceiver: StatsReceiver
-  ): TtlCache[Long, tp.Tweet] = {
-    val baseCache: KeyValueTransformingTtlCache[Long, String, tp.Tweet, Array[Byte]] =
-      new KeyValueTransformingTtlCache(
-        underlyingCache = finagleMemcache,
-        transformer = tweetsSerializer,
-        underlyingKey = keyTransformer
-      )
-    ObservableTtlCache(
-      underlyingCache = baseCache,
-      statsReceiver = statsReceiver.scope(ScopeName),
-      windowSize = 1000,
-      name = ScopeName
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/BUILD.bazel
deleted file mode 100644
index 25e9a2e31..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/BUILD.bazel
+++ /dev/null
@@ -1,9 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/GlobalParamConfigModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/GlobalParamConfigModule.scala
deleted file mode 100644
index 304e7bdc8..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/GlobalParamConfigModule.scala
+++ /dev/null
@@ -1,10 +0,0 @@
-package com.twitter.home_mixer.param
-
-import com.twitter.inject.TwitterModule
-import com.twitter.product_mixer.core.functional_component.configapi.registry.GlobalParamConfig
-
-object GlobalParamConfigModule extends TwitterModule {
-  override def configure(): Unit = {
-    bind[GlobalParamConfig].to[HomeGlobalParamConfig]
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/HomeGlobalParamConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/HomeGlobalParamConfig.scala
deleted file mode 100644
index 6fbd28fce..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/HomeGlobalParamConfig.scala
+++ /dev/null
@@ -1,34 +0,0 @@
-package com.twitter.home_mixer.param
-
-import com.twitter.home_mixer.param.HomeGlobalParams._
-import com.twitter.product_mixer.core.functional_component.configapi.registry.GlobalParamConfig
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Register Params that do not relate to a specific product. See GlobalParamConfig -> ParamConfig
- * for hooks to register Params based on type.
- */
-@Singleton
-class HomeGlobalParamConfig @Inject() () extends GlobalParamConfig {
-
-  override val booleanFSOverrides = Seq(
-    AdsDisableInjectionBasedOnUserRoleParam,
-    EnableAdvertiserBrandSafetySettingsFeatureHydratorParam,
-    EnableImpressionBloomFilter,
-    EnableNahFeedbackInfoParam,
-    EnableNewTweetsPillAvatarsParam,
-    EnableScribeServedCandidatesParam,
-    EnableSendScoresToClient,
-    EnableSocialContextParam,
-  )
-
-  override val boundedIntFSOverrides = Seq(
-    MaxNumberReplaceInstructionsParam,
-    TimelinesPersistenceStoreMaxEntriesPerClient,
-  )
-
-  override val boundedDoubleFSOverrides = Seq(
-    ImpressionBloomFilterFalsePositiveRateParam
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/HomeGlobalParams.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/HomeGlobalParams.scala
deleted file mode 100644
index f19817bc9..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/HomeGlobalParams.scala
+++ /dev/null
@@ -1,86 +0,0 @@
-package com.twitter.home_mixer.param
-
-import com.twitter.timelines.configapi.FSBoundedParam
-import com.twitter.timelines.configapi.FSParam
-
-/**
- * Instantiate Params that do not relate to a specific product.
- *
- * @see [[com.twitter.product_mixer.core.product.ProductParamConfig.supportedClientFSName]]
- */
-object HomeGlobalParams {
-
-  /**
-   * This param is used to disable ads injection for timelines served by home-mixer.
-   * It is currently used to maintain user-role based no-ads lists for automation accounts,
-   * and should NOT be used for other purposes.
-   */
-  object AdsDisableInjectionBasedOnUserRoleParam
-      extends FSParam("home_mixer_ads_disable_injection_based_on_user_role", false)
-
-  object EnableSendScoresToClient
-      extends FSParam[Boolean](
-        name = "home_mixer_enable_send_scores_to_client",
-        default = false
-      )
-
-  object EnableNahFeedbackInfoParam
-      extends FSParam[Boolean](
-        name = "home_mixer_enable_nah_feedback_info",
-        default = false
-      )
-
-  object MaxNumberReplaceInstructionsParam
-      extends FSBoundedParam[Int](
-        name = "home_mixer_max_number_replace_instructions",
-        default = 100,
-        min = 0,
-        max = 200
-      )
-
-  object TimelinesPersistenceStoreMaxEntriesPerClient
-      extends FSBoundedParam[Int](
-        name = "home_mixer_timelines_persistence_store_max_entries_per_client",
-        default = 1800,
-        min = 500,
-        max = 5000
-      )
-
-  object EnableNewTweetsPillAvatarsParam
-      extends FSParam[Boolean](
-        name = "home_mixer_enable_new_tweets_pill_avatars",
-        default = true
-      )
-
-  object EnableSocialContextParam
-      extends FSParam[Boolean](
-        name = "home_mixer_enable_social_context",
-        default = true
-      )
-
-  object EnableAdvertiserBrandSafetySettingsFeatureHydratorParam
-      extends FSParam[Boolean](
-        name = "home_mixer_enable_advertiser_brand_safety_settings_feature_hydrator",
-        default = true
-      )
-
-  object EnableImpressionBloomFilter
-      extends FSParam[Boolean](
-        name = "home_mixer_enable_impression_bloom_filter",
-        default = false
-      )
-
-  object ImpressionBloomFilterFalsePositiveRateParam
-      extends FSBoundedParam[Double](
-        name = "home_mixer_impression_bloom_filter_false_positive_rate",
-        default = 0.005,
-        min = 0.001,
-        max = 0.01
-      )
-
-  object EnableScribeServedCandidatesParam
-      extends FSParam[Boolean](
-        name = "home_mixer_served_tweets_enable_scribing",
-        default = true
-      )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/HomeMixerFlagName.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/HomeMixerFlagName.scala
deleted file mode 100644
index dc5f5513f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/HomeMixerFlagName.scala
+++ /dev/null
@@ -1,13 +0,0 @@
-package com.twitter.home_mixer.param
-
-object HomeMixerFlagName {
-  final val ScribeClientEventsFlag = "scribe.client_events"
-  final val ScribeServedCandidatesFlag = "scribe.served_candidates"
-  final val ScribeScoredCandidatesFlag = "scribe.scored_candidates"
-  final val ScribeServedCommonFeaturesAndCandidateFeaturesFlag =
-    "scribe.served_common_features_and_candidate_features"
-  final val DataRecordMetadataStoreConfigsYmlFlag = "data.record.metadata.store.configs.yml"
-  final val DarkTrafficFilterDeciderKey = "thrift.dark.traffic.filter.decider_key"
-  final val TargetFetchLatency = "target.fetch.latency"
-  final val TargetScoringLatency = "target.scoring.latency"
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/HomeMixerInjectionNames.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/HomeMixerInjectionNames.scala
deleted file mode 100644
index 5ea87f5ab..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/HomeMixerInjectionNames.scala
+++ /dev/null
@@ -1,46 +0,0 @@
-package com.twitter.home_mixer.param
-
-object HomeMixerInjectionNames {
-  final val AuthorFeatureRepository = "AuthorFeatureRepository"
-  final val CandidateFeaturesScribeEventPublisher = "CandidateFeaturesScribeEventPublisher"
-  final val CommonFeaturesScribeEventPublisher = "CommonFeaturesScribeEventPublisher"
-  final val EarlybirdRepository = "EarlybirdRepository"
-  final val EngagementsReceivedByAuthorCache = "EngagementsReceivedByAuthorCache"
-  final val GraphTwoHopRepository = "GraphTwoHopRepository"
-  final val HomeAuthorFeaturesCacheClient = "HomeAuthorFeaturesCacheClient"
-  final val InterestsThriftServiceClient = "InterestsThriftServiceClient"
-  final val BatchedStratoClientWithModerateTimeout = "BatchedStratoClientWithModerateTimeout"
-  final val ManhattanApolloClient = "ManhattanApolloClient"
-  final val ManhattanAthenaClient = "ManhattanAthenaClient"
-  final val ManhattanOmegaClient = "ManhattanOmegaClient"
-  final val ManhattanStarbuckClient = "ManhattanStarbuckClient"
-  final val MetricCenterUserCountingFeatureRepository = "MetricCenterUserCountingFeatureRepository"
-  final val MinimumFeaturesScribeEventPublisher = "MinimumFeaturesScribeEventPublisher"
-  final val RealGraphInNetworkScores = "RealGraphInNetworkScores"
-  final val RealGraphManhattanEndpoint = "RealGraphFeaturesManhattanEndpoint"
-  final val RealGraphFeatureRepository = "RealGraphFeatureRepository"
-  final val RealTimeInteractionGraphUserVertexCache = "RealTimeInteractionGraphUserVertexCache"
-  final val RealTimeInteractionGraphUserVertexClient = "RealTimeInteractionGraphUserVertexClient"
-  final val StaleTweetsCache = "StaleTweetsCache"
-  final val TimelineAggregateMetadataRepository = "TimelineAggregateMetadataRepository"
-  final val TimelineAggregatePartARepository = "TimelineAggregatePartARepository"
-  final val TimelineAggregatePartBRepository = "TimelineAggregatePartBRepository"
-  final val TimelinesRealTimeAggregateClient = "TimelinesRealTimeAggregateClient"
-  final val TopicCountryEngagementCache = "TopicCountryEngagementCache"
-  final val TopicEngagementCache = "TopicEngagementCache"
-  final val TweetCountryEngagementCache = "TweetCountryEngagementCache"
-  final val TweetEngagementCache = "TweetEngagementCache"
-  final val TweetypieContentRepository = "TweetypieContentRepository"
-  final val TweetypieStaticEntitiesCache = "TweetypieStaticEntitiesCache"
-  final val TwhinAuthorFollowFeatureCacheClient = "TwhinAuthorFollowFeatureCacheClient"
-  final val TwhinAuthorFollowFeatureRepository = "TwhinAuthorFollowFeatureRepository"
-  final val TwhinUserEngagementFeatureRepository = "TwhinUserEngagementFeatureRepository"
-  final val TwhinUserFollowFeatureRepository = "TwhinUserFollowFeatureRepository"
-  final val TwitterListEngagementCache = "TwitterListEngagementCache"
-  final val UserAuthorEngagementCache = "UserAuthorEngagementCache"
-  final val UserEngagementCache = "UserEngagementCache"
-  final val UserFollowedTopicIdsRepository = "UserFollowedTopicIdsRepository"
-  final val UserLanguagesRepository = "UserLanguagesRepository"
-  final val UserTopicEngagementForNewUserCache = "UserTopicEngagementForNewUserCache"
-  final val UtegSocialProofRepository = "UtegSocialProofRepository"
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/decider/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/decider/BUILD.bazel
deleted file mode 100644
index 5974c186f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/decider/BUILD.bazel
+++ /dev/null
@@ -1,10 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    platform = "java8",
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "servo/decider",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/decider/DeciderKey.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/decider/DeciderKey.scala
deleted file mode 100644
index 91f7646d9..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/param/decider/DeciderKey.scala
+++ /dev/null
@@ -1,52 +0,0 @@
-package com.twitter.home_mixer.param.decider
-
-import com.twitter.servo.decider.DeciderKeyEnum
-
-/**
- * These values must correspond to the deciders configured in the
- * home-mixer/server/src/main/resources/config/decider.yml file
- *
- * @see [[com.twitter.product_mixer.core.product.ProductParamConfig.enabledDeciderKey]]
- */
-object DeciderKey extends DeciderKeyEnum {
-  // Products
-  val EnableForYouProduct = Value("enable_for_you_product")
-
-  val EnableFollowingProduct = Value("enable_following_product")
-
-  val EnableScoredTweetsProduct = Value("enable_scored_tweets_product")
-
-  val EnableListTweetsProduct = Value("enable_list_tweets_product")
-
-  val EnableListRecommendedUsersProduct = Value("enable_list_recommended_users_product")
-
-  val EnableSubscribedProduct = Value("enable_subscribed_product")
-
-  // Candidate Pipelines
-  val EnableForYouScoredTweetsCandidatePipeline =
-    Value("enable_for_you_scored_tweets_candidate_pipeline")
-
-  val EnableScoredTweetsTweetMixerCandidatePipeline =
-    Value("enable_scored_tweets_tweet_mixer_candidate_pipeline")
-
-  val EnableScoredTweetsInNetworkCandidatePipeline =
-    Value("enable_scored_tweets_in_network_candidate_pipeline")
-
-  val EnableScoredTweetsUtegCandidatePipeline =
-    Value("enable_scored_tweets_uteg_candidate_pipeline")
-
-  val EnableScoredTweetsFrsCandidatePipeline =
-    Value("enable_scored_tweets_frs_candidate_pipeline")
-
-  val EnableScoredTweetsListsCandidatePipeline =
-    Value("enable_scored_tweets_lists_candidate_pipeline")
-
-  val EnableScoredTweetsPopularVideosCandidatePipeline =
-    Value("enable_scored_tweets_popular_videos_candidate_pipeline")
-
-  val EnableScoredTweetsBackfillCandidatePipeline =
-    Value("enable_scored_tweets_backfill_candidate_pipeline")
-
-  val EnableSimClustersSimilarityFeatureHydration =
-    Value("enable_simclusters_similarity_feature_hydration")
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/BUILD.bazel
deleted file mode 100644
index e4fa669d2..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/BUILD.bazel
+++ /dev/null
@@ -1,28 +0,0 @@
-scala_library(
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/javax/inject:javax.inject",
-        "finatra/inject/inject-core/src/main/scala",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/model",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/query/ads",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product/guice",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product/registry",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/HomeMixerProductModule.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/HomeMixerProductModule.scala
deleted file mode 100644
index cff4da4fb..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/HomeMixerProductModule.scala
+++ /dev/null
@@ -1,11 +0,0 @@
-package com.twitter.home_mixer.product
-
-import com.twitter.inject.TwitterModule
-import com.twitter.product_mixer.core.product.registry.ProductPipelineRegistryConfig
-
-object HomeMixerProductModule extends TwitterModule {
-
-  override def configure(): Unit = {
-    bind[ProductPipelineRegistryConfig].to[HomeProductPipelineRegistryConfig]
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/HomeProductPipelineRegistryConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/HomeProductPipelineRegistryConfig.scala
deleted file mode 100644
index 5db4bd7f6..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/HomeProductPipelineRegistryConfig.scala
+++ /dev/null
@@ -1,60 +0,0 @@
-package com.twitter.home_mixer.product
-
-import com.twitter.home_mixer.model.request.FollowingProduct
-import com.twitter.home_mixer.model.request.ForYouProduct
-import com.twitter.home_mixer.model.request.ListRecommendedUsersProduct
-import com.twitter.home_mixer.model.request.ListTweetsProduct
-import com.twitter.home_mixer.model.request.ScoredTweetsProduct
-import com.twitter.home_mixer.model.request.SubscribedProduct
-import com.twitter.home_mixer.product.following.FollowingProductPipelineConfig
-import com.twitter.home_mixer.product.for_you.ForYouProductPipelineConfig
-import com.twitter.home_mixer.product.list_recommended_users.ListRecommendedUsersProductPipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.ScoredTweetsProductPipelineConfig
-import com.twitter.home_mixer.product.list_tweets.ListTweetsProductPipelineConfig
-import com.twitter.home_mixer.product.subscribed.SubscribedProductPipelineConfig
-import com.twitter.inject.Injector
-import com.twitter.product_mixer.core.product.guice.ProductScope
-import com.twitter.product_mixer.core.product.registry.ProductPipelineRegistryConfig
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class HomeProductPipelineRegistryConfig @Inject() (
-  injector: Injector,
-  productScope: ProductScope)
-    extends ProductPipelineRegistryConfig {
-
-  private val followingProductPipelineConfig = productScope.let(FollowingProduct) {
-    injector.instance[FollowingProductPipelineConfig]
-  }
-
-  private val forYouProductPipelineConfig = productScope.let(ForYouProduct) {
-    injector.instance[ForYouProductPipelineConfig]
-  }
-
-  private val scoredTweetsProductPipelineConfig = productScope.let(ScoredTweetsProduct) {
-    injector.instance[ScoredTweetsProductPipelineConfig]
-  }
-
-  private val listTweetsProductPipelineConfig = productScope.let(ListTweetsProduct) {
-    injector.instance[ListTweetsProductPipelineConfig]
-  }
-
-  private val listRecommendedUsersProductPipelineConfig =
-    productScope.let(ListRecommendedUsersProduct) {
-      injector.instance[ListRecommendedUsersProductPipelineConfig]
-    }
-
-  private val subscribedProductPipelineConfig = productScope.let(SubscribedProduct) {
-    injector.instance[SubscribedProductPipelineConfig]
-  }
-
-  override val productPipelineConfigs = Seq(
-    followingProductPipelineConfig,
-    forYouProductPipelineConfig,
-    scoredTweetsProductPipelineConfig,
-    listTweetsProductPipelineConfig,
-    listRecommendedUsersProductPipelineConfig,
-    subscribedProductPipelineConfig,
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/BUILD.bazel
deleted file mode 100644
index 4771fe655..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/BUILD.bazel
+++ /dev/null
@@ -1,95 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/javax/inject:javax.inject",
-        "ads-injection/lib/src/main/scala/com/twitter/goldfinch/api",
-        "finagle/finagle-memcached/src/main/scala",
-        "finatra/inject/inject-core/src/main/scala",
-        "finatra/inject/inject-core/src/main/scala/com/twitter/inject",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/candidate_source",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/service",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/account_recommendations_mixer",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/hermit",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/tweetconvosvc",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/decorator/urt",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/candidate/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/candidate/param_gated",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/async",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/impressed_tweets",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/param_gated",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/social_graph",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/filter",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/gate",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/presentation/urt",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/pipeline/candidate/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/pipeline/candidate/flexible_injection_pipeline",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/pipeline/candidate/who_to_follow_module",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/premarshaller/urt",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/selector",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/selector/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/side_effect",
-        "product-mixer/core/src/main/java/com/twitter/product_mixer/core/product/guice/scope",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/configapi",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/decorator",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/decorator/urt/builder",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/marshaller/response/urt",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/common/presentation",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/request",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/response/urt",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/response/urt/item",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/candidate",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/mixer",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/product",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product/guice",
-        "src/java/com/twitter/search/common/schema/base",
-        "src/java/com/twitter/search/common/schema/earlybird",
-        "src/java/com/twitter/search/common/util/lang",
-        "src/java/com/twitter/search/queryparser/query:core-query-nodes",
-        "src/java/com/twitter/search/queryparser/query/search:search-query-nodes",
-        "src/scala/com/twitter/suggests/controller_data",
-        "src/thrift/com/twitter/search:earlybird-scala",
-        "src/thrift/com/twitter/search/common:constants-java",
-        "src/thrift/com/twitter/suggests/controller_data:controller_data-scala",
-        "src/thrift/com/twitter/timelinemixer:thrift-scala",
-        "src/thrift/com/twitter/timelines/render:thrift-scala",
-        "src/thrift/com/twitter/timelinescorer:thrift-scala",
-        "src/thrift/com/twitter/timelinescorer/common/scoredtweetcandidate:thrift-scala",
-        "src/thrift/com/twitter/timelinescorer/server/internal:thrift-scala",
-        "src/thrift/com/twitter/tweetypie:service-scala",
-        "stitch/stitch-gizmoduck",
-        "stitch/stitch-tweetypie",
-        "stringcenter/client",
-        "stringcenter/client/src/main/java",
-        "timelinemixer/server/src/main/scala/com/twitter/timelinemixer/injection/model/candidate",
-        "timelines/src/main/scala/com/twitter/timelines/clients/relevance_search",
-        "timelines/src/main/scala/com/twitter/timelines/injection/scribe",
-    ],
-    exports = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/param",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/decorator/urt",
-        "src/thrift/com/twitter/timelines/render:thrift-scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingAdsCandidatePipelineBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingAdsCandidatePipelineBuilder.scala
deleted file mode 100644
index d4898eb31..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingAdsCandidatePipelineBuilder.scala
+++ /dev/null
@@ -1,108 +0,0 @@
-package com.twitter.home_mixer.product.following
-
-import com.twitter.adserver.{thriftscala => ads}
-import com.twitter.home_mixer.functional_component.decorator.builder.HomeAdsClientEventDetailsBuilder
-import com.twitter.home_mixer.functional_component.gate.ExcludeSoftUserGate
-import com.twitter.home_mixer.model.HomeFeatures.TweetLanguageFeature
-import com.twitter.home_mixer.model.HomeFeatures.TweetTextFeature
-import com.twitter.home_mixer.param.HomeGlobalParams
-import com.twitter.home_mixer.param.HomeGlobalParams.EnableAdvertiserBrandSafetySettingsFeatureHydratorParam
-import com.twitter.home_mixer.product.following.model.FollowingQuery
-import com.twitter.home_mixer.product.following.param.FollowingParam.EnableAdsCandidatePipelineParam
-import com.twitter.home_mixer.product.following.param.FollowingParam.EnableFastAds
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.component_library.candidate_source.ads.AdsProdThriftCandidateSource
-import com.twitter.product_mixer.component_library.decorator.urt.UrtItemCandidateDecorator
-import com.twitter.product_mixer.component_library.decorator.urt.builder.contextual_ref.ContextualTweetRefBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.item.ad.AdsCandidateUrtItemBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.metadata.ClientEventInfoBuilder
-import com.twitter.product_mixer.component_library.feature_hydrator.candidate.ads.AdvertiserBrandSafetySettingsFeatureHydrator
-import com.twitter.product_mixer.component_library.feature_hydrator.candidate.param_gated.ParamGatedCandidateFeatureHydrator
-import com.twitter.product_mixer.component_library.gate.NonEmptyCandidatesGate
-import com.twitter.product_mixer.component_library.model.candidate.ads.AdsCandidate
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.AdsDependentCandidatePipelineConfig
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.AdsDependentCandidatePipelineConfigBuilder
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.CountCandidatesFromPipelines
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.PipelineScopedOrganicItems
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.ValidAdImpressionIdFilter
-import com.twitter.product_mixer.core.functional_component.common.CandidateScope
-import com.twitter.product_mixer.core.gate.ParamNotGate
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.rtf.safety_level.TimelineHomePromotedHydrationSafetyLevel
-import com.twitter.product_mixer.core.model.marshalling.response.urt.contextual_ref.TweetHydrationContext
-import com.twitter.timelines.injection.scribe.InjectionScribeUtil
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class FollowingAdsCandidatePipelineBuilder @Inject() (
-  adsCandidatePipelineConfigBuilder: AdsDependentCandidatePipelineConfigBuilder,
-  adsCandidateSource: AdsProdThriftCandidateSource,
-  advertiserBrandSafetySettingsFeatureHydrator: AdvertiserBrandSafetySettingsFeatureHydrator[
-    FollowingQuery,
-    AdsCandidate
-  ]) {
-
-  private val identifier: CandidatePipelineIdentifier = CandidatePipelineIdentifier("FollowingAds")
-
-  private val suggestType = st.SuggestType.Promoted
-
-  private val clientEventInfoBuilder = ClientEventInfoBuilder(
-    component = InjectionScribeUtil.scribeComponent(suggestType).get,
-    detailsBuilder = Some(HomeAdsClientEventDetailsBuilder(Some(suggestType.name)))
-  )
-
-  private val contextualTweetRefBuilder = ContextualTweetRefBuilder(
-    TweetHydrationContext(
-      safetyLevelOverride = Some(TimelineHomePromotedHydrationSafetyLevel),
-      outerTweetContext = None
-    ))
-
-  private val decorator = UrtItemCandidateDecorator(
-    AdsCandidateUrtItemBuilder(
-      tweetClientEventInfoBuilder = Some(clientEventInfoBuilder),
-      contextualTweetRefBuilder = Some(contextualTweetRefBuilder)
-    ))
-
-  private val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(),
-    HomeMixerAlertConfig.BusinessHours.defaultEmptyResponseRateAlert()
-  )
-
-  def build(
-    organicCandidatePipelines: CandidateScope
-  ): AdsDependentCandidatePipelineConfig[FollowingQuery] =
-    adsCandidatePipelineConfigBuilder.build[FollowingQuery](
-      adsCandidateSource = adsCandidateSource,
-      identifier = identifier,
-      adsDisplayLocationBuilder = query =>
-        if (query.params.getBoolean(EnableFastAds)) ads.DisplayLocation.TimelineHomeReverseChron
-        else ads.DisplayLocation.TimelineHome,
-      getOrganicItems = PipelineScopedOrganicItems(
-        pipelines = organicCandidatePipelines,
-        textFeature = TweetTextFeature,
-        languageFeature = TweetLanguageFeature
-      ),
-      countNumOrganicItems = CountCandidatesFromPipelines(organicCandidatePipelines),
-      supportedClientParam = Some(EnableAdsCandidatePipelineParam),
-      gates = Seq(
-        ParamNotGate(
-          name = "AdsDisableInjectionBasedOnUserRole",
-          param = HomeGlobalParams.AdsDisableInjectionBasedOnUserRoleParam
-        ),
-        ExcludeSoftUserGate,
-        NonEmptyCandidatesGate(organicCandidatePipelines)
-      ),
-      filters = Seq(ValidAdImpressionIdFilter),
-      postFilterFeatureHydration = Seq(
-        ParamGatedCandidateFeatureHydrator(
-          EnableAdvertiserBrandSafetySettingsFeatureHydratorParam,
-          advertiserBrandSafetySettingsFeatureHydrator
-        )
-      ),
-      decorator = Some(decorator),
-      alerts = alerts,
-      urtRequest = Some(true),
-    )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingEarlybirdCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingEarlybirdCandidatePipelineConfig.scala
deleted file mode 100644
index addb298c2..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingEarlybirdCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,54 +0,0 @@
-package com.twitter.home_mixer.product.following
-
-import com.twitter.home_mixer.candidate_pipeline.FollowingEarlybirdResponseFeatureTransformer
-import com.twitter.home_mixer.functional_component.candidate_source.EarlybirdCandidateSource
-import com.twitter.home_mixer.product.following.model.FollowingQuery
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.SGSFollowedUsersFeature
-import com.twitter.product_mixer.component_library.gate.NonEmptySeqFeatureGate
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.BaseCandidateSource
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.search.earlybird.{thriftscala => t}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class FollowingEarlybirdCandidatePipelineConfig @Inject() (
-  earlybirdCandidateSource: EarlybirdCandidateSource,
-  followingEarlybirdQueryTransformer: FollowingEarlybirdQueryTransformer)
-    extends CandidatePipelineConfig[
-      FollowingQuery,
-      t.EarlybirdRequest,
-      t.ThriftSearchResult,
-      TweetCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("FollowingEarlybird")
-
-  override val candidateSource: BaseCandidateSource[t.EarlybirdRequest, t.ThriftSearchResult] =
-    earlybirdCandidateSource
-
-  override val gates: Seq[Gate[FollowingQuery]] = Seq(
-    NonEmptySeqFeatureGate(SGSFollowedUsersFeature)
-  )
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[
-    FollowingQuery,
-    t.EarlybirdRequest
-  ] = followingEarlybirdQueryTransformer
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[t.ThriftSearchResult]
-  ] = Seq(FollowingEarlybirdResponseFeatureTransformer)
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    t.ThriftSearchResult,
-    TweetCandidate
-  ] = { sourceResult => TweetCandidate(id = sourceResult.id) }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingEarlybirdQueryTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingEarlybirdQueryTransformer.scala
deleted file mode 100644
index c388cfa92..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingEarlybirdQueryTransformer.scala
+++ /dev/null
@@ -1,84 +0,0 @@
-package com.twitter.home_mixer.product.following
-
-import com.twitter.finagle.thrift.ClientId
-import com.twitter.finagle.tracing.Trace
-import com.twitter.home_mixer.model.HomeFeatures.RealGraphInNetworkScoresFeature
-import com.twitter.home_mixer.product.following.model.FollowingQuery
-import com.twitter.home_mixer.product.following.param.FollowingParam.ServerMaxResultsParam
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.SGSFollowedUsersFeature
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.BottomCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.GapCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.TopCursor
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.MalformedCursor
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.PipelineFailure
-import com.twitter.search.common.schema.earlybird.EarlybirdFieldConstants.EarlybirdFieldConstant
-import com.twitter.search.earlybird.{thriftscala => t}
-import com.twitter.search.queryparser.query.Conjunction
-import com.twitter.search.queryparser.query.search.SearchOperator
-import javax.inject.Inject
-import javax.inject.Singleton
-import scala.jdk.CollectionConverters.asJavaIterableConverter
-
-@Singleton
-case class FollowingEarlybirdQueryTransformer @Inject() (clientId: ClientId)
-    extends CandidatePipelineQueryTransformer[FollowingQuery, t.EarlybirdRequest] {
-
-  override def transform(query: FollowingQuery): t.EarlybirdRequest = {
-    val followedUserIds =
-      query.features.map(_.get(SGSFollowedUsersFeature)).getOrElse(Seq.empty).toSet
-    val realGraphInNetworkFollowedUserIds =
-      query.features.map(_.get(RealGraphInNetworkScoresFeature)).getOrElse(Map.empty).keySet
-    val userId = query.getRequiredUserId
-    val combinedUserIds = userId +: followedUserIds.toSeq
-
-    val baseFollowedUsersSearchOperator = new SearchOperator.Builder()
-      .setType(SearchOperator.Type.FEATURE_VALUE_IN_ACCEPT_LIST_OR_UNSET)
-      .addOperand(EarlybirdFieldConstant.DIRECTED_AT_USER_ID_CSF.getFieldName)
-
-    val followedUsersQuery =
-      baseFollowedUsersSearchOperator.addOperands(combinedUserIds.map(_.toString).asJava).build()
-
-    val searchQuery = query.pipelineCursor
-      .map { cursor =>
-        val sinceIdQuery =
-          (id: Long) => new SearchOperator(SearchOperator.Type.SINCE_ID, id.toString)
-        val maxIdQuery = // max ID is inclusive, so subtract 1
-          (id: Long) => new SearchOperator(SearchOperator.Type.MAX_ID, (id - 1).toString)
-
-        (cursor.cursorType, cursor.id, cursor.gapBoundaryId) match {
-          case (Some(TopCursor), Some(sinceId), _) =>
-            new Conjunction(sinceIdQuery(sinceId), followedUsersQuery)
-          case (Some(BottomCursor), Some(maxId), _) =>
-            new Conjunction(maxIdQuery(maxId), followedUsersQuery)
-          case (Some(GapCursor), Some(maxId), Some(sinceId)) =>
-            new Conjunction(sinceIdQuery(sinceId), maxIdQuery(maxId), followedUsersQuery)
-          case (Some(GapCursor), _, _) =>
-            throw PipelineFailure(MalformedCursor, "Invalid cursor " + cursor.toString)
-          case _ => followedUsersQuery
-        }
-      }.getOrElse(followedUsersQuery)
-
-    val metadataOptions = t.ThriftSearchResultMetadataOptions(
-      getInReplyToStatusId = true,
-      getReferencedTweetAuthorId = true,
-      getFromUserId = true
-    )
-
-    t.EarlybirdRequest(
-      searchQuery = t.ThriftSearchQuery(
-        serializedQuery = Some(searchQuery.serialize),
-        fromUserIDFilter64 = Some(combinedUserIds),
-        numResults = query.requestedMaxResults.getOrElse(query.params(ServerMaxResultsParam)),
-        rankingMode = t.ThriftSearchRankingMode.Recency,
-        resultMetadataOptions = Some(metadataOptions),
-        searcherId = query.getOptionalUserId,
-      ),
-      getOlderResults = Some(true), // needed for archive access to older tweets
-      clientRequestID = Some(s"${Trace.id.traceId}"),
-      followedUserIds = Some(combinedUserIds),
-      numResultsToReturnAtRoot = Some(query.params(ServerMaxResultsParam)),
-      clientId = Some(clientId.name),
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingEarlybirdResponseFeatureTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingEarlybirdResponseFeatureTransformer.scala
deleted file mode 100644
index 0169e6dd7..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingEarlybirdResponseFeatureTransformer.scala
+++ /dev/null
@@ -1,38 +0,0 @@
-package com.twitter.home_mixer.candidate_pipeline
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceUserIdFeature
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.search.earlybird.{thriftscala => t}
-
-object FollowingEarlybirdResponseFeatureTransformer
-    extends CandidateFeatureTransformer[t.ThriftSearchResult] {
-
-  override val identifier: TransformerIdentifier =
-    TransformerIdentifier("FollowingEarlybirdResponse")
-
-  override val features: Set[Feature[_, _]] = Set(
-    AuthorIdFeature,
-    InReplyToTweetIdFeature,
-    IsRetweetFeature,
-    SourceTweetIdFeature,
-    SourceUserIdFeature,
-  )
-
-  override def transform(candidate: t.ThriftSearchResult): FeatureMap = FeatureMapBuilder()
-    .add(AuthorIdFeature, candidate.tweetypieTweet.flatMap(_.coreData.map(_.userId)))
-    .add(
-      InReplyToTweetIdFeature,
-      candidate.tweetypieTweet.flatMap(_.coreData.flatMap(_.reply.flatMap(_.inReplyToStatusId))))
-    .add(IsRetweetFeature, candidate.metadata.exists(_.isRetweet.contains(true)))
-    .add(SourceTweetIdFeature, candidate.sourceTweetypieTweet.map(_.id))
-    .add(SourceUserIdFeature, candidate.sourceTweetypieTweet.flatMap(_.coreData.map(_.userId)))
-    .build()
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingMixerPipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingMixerPipelineConfig.scala
deleted file mode 100644
index efda03595..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingMixerPipelineConfig.scala
+++ /dev/null
@@ -1,299 +0,0 @@
-package com.twitter.home_mixer.product.following
-
-import com.twitter.clientapp.{thriftscala => ca}
-import com.twitter.goldfinch.api.AdsInjectionSurfaceAreas
-import com.twitter.home_mixer.candidate_pipeline.ConversationServiceCandidatePipelineConfigBuilder
-import com.twitter.home_mixer.candidate_pipeline.EditedTweetsCandidatePipelineConfig
-import com.twitter.home_mixer.candidate_pipeline.NewTweetsPillCandidatePipelineConfig
-import com.twitter.home_mixer.functional_component.decorator.HomeConversationServiceCandidateDecorator
-import com.twitter.home_mixer.functional_component.decorator.urt.builder.AddEntriesWithReplaceAndShowAlertAndCoverInstructionBuilder
-import com.twitter.home_mixer.functional_component.decorator.urt.builder.HomeFeedbackActionInfoBuilder
-import com.twitter.home_mixer.functional_component.feature_hydrator._
-import com.twitter.home_mixer.functional_component.selector.UpdateHomeClientEventDetails
-import com.twitter.home_mixer.functional_component.selector.UpdateNewTweetsPillDecoration
-import com.twitter.home_mixer.functional_component.side_effect._
-import com.twitter.home_mixer.model.GapIncludeInstruction
-import com.twitter.home_mixer.param.HomeGlobalParams.EnableImpressionBloomFilter
-import com.twitter.home_mixer.param.HomeGlobalParams.MaxNumberReplaceInstructionsParam
-import com.twitter.home_mixer.param.HomeMixerFlagName.ScribeClientEventsFlag
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.SGSFollowedUsersQueryFeatureHydrator
-import com.twitter.home_mixer.product.following.model.FollowingQuery
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.home_mixer.product.following.param.FollowingParam.EnableFlipInjectionModuleCandidatePipelineParam
-import com.twitter.home_mixer.product.following.param.FollowingParam.FlipInlineInjectionModulePosition
-import com.twitter.home_mixer.product.following.param.FollowingParam.ServerMaxResultsParam
-import com.twitter.home_mixer.product.following.param.FollowingParam.WhoToFollowPositionParam
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.inject.annotations.Flag
-import com.twitter.logpipeline.client.common.EventPublisher
-import com.twitter.product_mixer.component_library.feature_hydrator.query.async.AsyncQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.feature_hydrator.query.impressed_tweets.ImpressedTweetsQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.feature_hydrator.query.param_gated.AsyncParamGatedQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.gate.NonEmptyCandidatesGate
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.component_library.pipeline.candidate.flexible_injection_pipeline.FlipPromptDependentCandidatePipelineConfigBuilder
-import com.twitter.product_mixer.component_library.pipeline.candidate.who_to_follow_module.WhoToFollowArmCandidatePipelineConfig
-import com.twitter.product_mixer.component_library.premarshaller.urt.UrtDomainMarshaller
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.OrderedBottomCursorBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.OrderedGapCursorBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.OrderedTopCursorBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ReplaceAllEntries
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ReplaceEntryInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ShowAlertInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ShowCoverInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.StaticTimelineScribeConfigBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.UrtMetadataBuilder
-import com.twitter.product_mixer.component_library.selector.DropMaxCandidates
-import com.twitter.product_mixer.component_library.selector.DropMaxModuleItemCandidates
-import com.twitter.product_mixer.component_library.selector.DropModuleTooFewModuleItemResults
-import com.twitter.product_mixer.component_library.selector.InsertAppendResults
-import com.twitter.product_mixer.component_library.selector.InsertFixedPositionResults
-import com.twitter.product_mixer.component_library.selector.SelectConditionally
-import com.twitter.product_mixer.component_library.selector.UpdateSortCandidates
-import com.twitter.product_mixer.component_library.selector.ads.AdsInjector
-import com.twitter.product_mixer.component_library.selector.ads.InsertAdResults
-import com.twitter.product_mixer.core.functional_component.common.SpecificPipeline
-import com.twitter.product_mixer.core.functional_component.common.SpecificPipelines
-import com.twitter.product_mixer.core.functional_component.configapi.StaticParam
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.marshaller.TransportMarshaller
-import com.twitter.product_mixer.core.functional_component.marshaller.response.urt.UrtTransportMarshaller
-import com.twitter.product_mixer.core.functional_component.premarshaller.DomainMarshaller
-import com.twitter.product_mixer.core.functional_component.selector.Selector
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.UniversalNoun
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.MixerPipelineIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.urt.Timeline
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineModule
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineScribeConfig
-import com.twitter.product_mixer.core.model.marshalling.response.urt.item.tweet.TweetItem
-import com.twitter.product_mixer.core.pipeline.FailOpenPolicy
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.product_mixer.core.pipeline.candidate.DependentCandidatePipelineConfig
-import com.twitter.product_mixer.core.pipeline.mixer.MixerPipelineConfig
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import com.twitter.timelines.render.{thriftscala => urt}
-import javax.inject.Inject
-import javax.inject.Provider
-import javax.inject.Singleton
-
-@Singleton
-class FollowingMixerPipelineConfig @Inject() (
-  followingEarlybirdCandidatePipelineConfig: FollowingEarlybirdCandidatePipelineConfig,
-  conversationServiceCandidatePipelineConfigBuilder: ConversationServiceCandidatePipelineConfigBuilder[
-    FollowingQuery
-  ],
-  homeFeedbackActionInfoBuilder: HomeFeedbackActionInfoBuilder,
-  followingAdsCandidatePipelineBuilder: FollowingAdsCandidatePipelineBuilder,
-  followingWhoToFollowCandidatePipelineConfigBuilder: FollowingWhoToFollowCandidatePipelineConfigBuilder,
-  flipPromptDependentCandidatePipelineConfigBuilder: FlipPromptDependentCandidatePipelineConfigBuilder,
-  editedTweetsCandidatePipelineConfig: EditedTweetsCandidatePipelineConfig,
-  newTweetsPillCandidatePipelineConfig: NewTweetsPillCandidatePipelineConfig[FollowingQuery],
-  dismissInfoQueryFeatureHydrator: DismissInfoQueryFeatureHydrator,
-  gizmoduckUserQueryFeatureHydrator: GizmoduckUserQueryFeatureHydrator,
-  persistenceStoreQueryFeatureHydrator: PersistenceStoreQueryFeatureHydrator,
-  realGraphInNetworkSourceQueryHydrator: RealGraphInNetworkScoresQueryFeatureHydrator,
-  requestQueryFeatureHydrator: RequestQueryFeatureHydrator[FollowingQuery],
-  sgsFollowedUsersQueryFeatureHydrator: SGSFollowedUsersQueryFeatureHydrator,
-  impressionBloomFilterQueryFeatureHydrator: ImpressionBloomFilterQueryFeatureHydrator[
-    FollowingQuery
-  ],
-  manhattanTweetImpressionsQueryFeatureHydrator: TweetImpressionsQueryFeatureHydrator[
-    FollowingQuery
-  ],
-  memcacheTweetImpressionsQueryFeatureHydrator: ImpressedTweetsQueryFeatureHydrator,
-  lastNonPollingTimeQueryFeatureHydrator: LastNonPollingTimeQueryFeatureHydrator,
-  adsInjector: AdsInjector,
-  updateLastNonPollingTimeSideEffect: UpdateLastNonPollingTimeSideEffect[FollowingQuery, Timeline],
-  publishClientSentImpressionsEventBusSideEffect: PublishClientSentImpressionsEventBusSideEffect,
-  publishClientSentImpressionsManhattanSideEffect: PublishClientSentImpressionsManhattanSideEffect,
-  publishImpressionBloomFilterSideEffect: PublishImpressionBloomFilterSideEffect,
-  updateTimelinesPersistenceStoreSideEffect: UpdateTimelinesPersistenceStoreSideEffect,
-  truncateTimelinesPersistenceStoreSideEffect: TruncateTimelinesPersistenceStoreSideEffect,
-  homeTimelineServedCandidatesSideEffect: HomeScribeServedCandidatesSideEffect,
-  clientEventsScribeEventPublisher: EventPublisher[ca.LogEvent],
-  externalStrings: HomeMixerExternalStrings,
-  @ProductScoped stringCenterProvider: Provider[StringCenter],
-  urtTransportMarshaller: UrtTransportMarshaller,
-  @Flag(ScribeClientEventsFlag) enableScribeClientEvents: Boolean)
-    extends MixerPipelineConfig[FollowingQuery, Timeline, urt.TimelineResponse] {
-
-  override val identifier: MixerPipelineIdentifier = MixerPipelineIdentifier("Following")
-
-  private val dependentCandidatesStep = MixerPipelineConfig.dependentCandidatePipelinesStep
-  private val resultSelectorsStep = MixerPipelineConfig.resultSelectorsStep
-
-  override val fetchQueryFeatures: Seq[QueryFeatureHydrator[FollowingQuery]] = Seq(
-    requestQueryFeatureHydrator,
-    sgsFollowedUsersQueryFeatureHydrator,
-    realGraphInNetworkSourceQueryHydrator,
-    AsyncQueryFeatureHydrator(dependentCandidatesStep, dismissInfoQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(dependentCandidatesStep, gizmoduckUserQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(dependentCandidatesStep, persistenceStoreQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(dependentCandidatesStep, lastNonPollingTimeQueryFeatureHydrator),
-    AsyncParamGatedQueryFeatureHydrator(
-      EnableImpressionBloomFilter,
-      resultSelectorsStep,
-      impressionBloomFilterQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(resultSelectorsStep, manhattanTweetImpressionsQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(resultSelectorsStep, memcacheTweetImpressionsQueryFeatureHydrator)
-  )
-
-  private val earlybirdCandidatePipelineScope =
-    SpecificPipeline(followingEarlybirdCandidatePipelineConfig.identifier)
-
-  private val conversationServiceCandidatePipelineConfig =
-    conversationServiceCandidatePipelineConfigBuilder.build(
-      Seq(NonEmptyCandidatesGate(earlybirdCandidatePipelineScope)),
-      HomeConversationServiceCandidateDecorator(homeFeedbackActionInfoBuilder)
-    )
-
-  private val followingAdsCandidatePipelineConfig =
-    followingAdsCandidatePipelineBuilder.build(earlybirdCandidatePipelineScope)
-
-  private val followingWhoToFollowCandidatePipelineConfig =
-    followingWhoToFollowCandidatePipelineConfigBuilder.build(earlybirdCandidatePipelineScope)
-
-  private val flipPromptCandidatePipelineConfig =
-    flipPromptDependentCandidatePipelineConfigBuilder.build[FollowingQuery](
-      supportedClientParam = Some(EnableFlipInjectionModuleCandidatePipelineParam)
-    )
-
-  override val candidatePipelines: Seq[CandidatePipelineConfig[FollowingQuery, _, _, _]] =
-    Seq(followingEarlybirdCandidatePipelineConfig)
-
-  override val dependentCandidatePipelines: Seq[
-    DependentCandidatePipelineConfig[FollowingQuery, _, _, _]
-  ] = Seq(
-    conversationServiceCandidatePipelineConfig,
-    followingAdsCandidatePipelineConfig,
-    followingWhoToFollowCandidatePipelineConfig,
-    flipPromptCandidatePipelineConfig,
-    editedTweetsCandidatePipelineConfig,
-    newTweetsPillCandidatePipelineConfig
-  )
-
-  override val failOpenPolicies: Map[CandidatePipelineIdentifier, FailOpenPolicy] = Map(
-    followingAdsCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    followingWhoToFollowCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    flipPromptCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    editedTweetsCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    newTweetsPillCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-  )
-
-  override val resultSelectors: Seq[Selector[FollowingQuery]] = Seq(
-    UpdateSortCandidates(
-      ordering = CandidatesUtil.reverseChronTweetsOrdering,
-      candidatePipeline = conversationServiceCandidatePipelineConfig.identifier
-    ),
-    DropMaxCandidates(
-      candidatePipeline = editedTweetsCandidatePipelineConfig.identifier,
-      maxSelectionsParam = MaxNumberReplaceInstructionsParam
-    ),
-    DropMaxCandidates(
-      candidatePipeline = conversationServiceCandidatePipelineConfig.identifier,
-      maxSelectionsParam = ServerMaxResultsParam
-    ),
-    DropModuleTooFewModuleItemResults(
-      candidatePipeline = followingWhoToFollowCandidatePipelineConfig.identifier,
-      minModuleItemsParam = StaticParam(WhoToFollowArmCandidatePipelineConfig.MinCandidatesSize)
-    ),
-    DropMaxModuleItemCandidates(
-      candidatePipeline = followingWhoToFollowCandidatePipelineConfig.identifier,
-      maxModuleItemsParam = StaticParam(WhoToFollowArmCandidatePipelineConfig.MaxCandidatesSize)
-    ),
-    InsertAppendResults(candidatePipeline = conversationServiceCandidatePipelineConfig.identifier),
-    InsertFixedPositionResults(
-      candidatePipeline = followingWhoToFollowCandidatePipelineConfig.identifier,
-      positionParam = WhoToFollowPositionParam
-    ),
-    InsertFixedPositionResults(
-      candidatePipeline = flipPromptCandidatePipelineConfig.identifier,
-      positionParam = FlipInlineInjectionModulePosition
-    ),
-    InsertAdResults(
-      surfaceAreaName = AdsInjectionSurfaceAreas.HomeTimeline,
-      adsInjector = adsInjector.forSurfaceArea(AdsInjectionSurfaceAreas.HomeTimeline),
-      adsCandidatePipeline = followingAdsCandidatePipelineConfig.identifier
-    ),
-    // This selector must come after the tweets are inserted into the results
-    UpdateNewTweetsPillDecoration(
-      pipelineScope = SpecificPipelines(
-        conversationServiceCandidatePipelineConfig.identifier,
-        newTweetsPillCandidatePipelineConfig.identifier
-      ),
-      stringCenter = stringCenterProvider.get(),
-      seeNewTweetsString = externalStrings.seeNewTweetsString,
-      tweetedString = externalStrings.tweetedString
-    ),
-    InsertAppendResults(candidatePipeline = editedTweetsCandidatePipelineConfig.identifier),
-    SelectConditionally(
-      selector =
-        InsertAppendResults(candidatePipeline = newTweetsPillCandidatePipelineConfig.identifier),
-      includeSelector = (_, _, results) => CandidatesUtil.containsType[TweetCandidate](results)
-    ),
-    UpdateHomeClientEventDetails(
-      candidatePipelines = Set(conversationServiceCandidatePipelineConfig.identifier)
-    ),
-  )
-
-  private val homeScribeClientEventSideEffect = HomeScribeClientEventSideEffect(
-    enableScribeClientEvents = enableScribeClientEvents,
-    logPipelinePublisher = clientEventsScribeEventPublisher,
-    injectedTweetsCandidatePipelineIdentifiers =
-      Seq(conversationServiceCandidatePipelineConfig.identifier),
-    adsCandidatePipelineIdentifier = Some(followingAdsCandidatePipelineConfig.identifier),
-    whoToFollowCandidatePipelineIdentifier =
-      Some(followingWhoToFollowCandidatePipelineConfig.identifier),
-  )
-
-  override val resultSideEffects: Seq[PipelineResultSideEffect[FollowingQuery, Timeline]] = Seq(
-    homeScribeClientEventSideEffect,
-    homeTimelineServedCandidatesSideEffect,
-    publishClientSentImpressionsEventBusSideEffect,
-    publishClientSentImpressionsManhattanSideEffect,
-    publishImpressionBloomFilterSideEffect,
-    truncateTimelinesPersistenceStoreSideEffect,
-    updateLastNonPollingTimeSideEffect,
-    updateTimelinesPersistenceStoreSideEffect,
-  )
-
-  override val domainMarshaller: DomainMarshaller[FollowingQuery, Timeline] = {
-    val instructionBuilders = Seq(
-      ReplaceEntryInstructionBuilder(ReplaceAllEntries),
-      AddEntriesWithReplaceAndShowAlertAndCoverInstructionBuilder(),
-      ShowAlertInstructionBuilder(),
-      ShowCoverInstructionBuilder(),
-    )
-
-    val idSelector: PartialFunction[UniversalNoun[_], Long] = {
-      // exclude ads while determining tweet cursor values
-      case item: TweetItem if item.promotedMetadata.isEmpty => item.id
-      case module: TimelineModule
-          if module.items.headOption.exists(_.item.isInstanceOf[TweetItem]) =>
-        module.items.last.item match { case item: TweetItem => item.id }
-    }
-    val topCursorBuilder = OrderedTopCursorBuilder(idSelector)
-    val bottomCursorBuilder =
-      OrderedBottomCursorBuilder(idSelector, GapIncludeInstruction.inverse())
-    val gapCursorBuilder = OrderedGapCursorBuilder(idSelector, GapIncludeInstruction)
-
-    val metadataBuilder = UrtMetadataBuilder(
-      title = None,
-      scribeConfigBuilder = Some(
-        StaticTimelineScribeConfigBuilder(
-          TimelineScribeConfig(page = Some("following"), section = None, entityToken = None)))
-    )
-
-    UrtDomainMarshaller(
-      instructionBuilders = instructionBuilders,
-      metadataBuilder = Some(metadataBuilder),
-      cursorBuilders = Seq(topCursorBuilder, bottomCursorBuilder, gapCursorBuilder)
-    )
-  }
-
-  override val transportMarshaller: TransportMarshaller[Timeline, urt.TimelineResponse] =
-    urtTransportMarshaller
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingProductPipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingProductPipelineConfig.scala
deleted file mode 100644
index 28c7cd6a0..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingProductPipelineConfig.scala
+++ /dev/null
@@ -1,131 +0,0 @@
-package com.twitter.home_mixer.product.following
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.marshaller.timelines.ChronologicalCursorUnmarshaller
-import com.twitter.home_mixer.model.request.FollowingProduct
-import com.twitter.home_mixer.model.request.FollowingProductContext
-import com.twitter.home_mixer.model.request.HomeMixerRequest
-import com.twitter.home_mixer.product.following.model.FollowingQuery
-import com.twitter.home_mixer.product.following.param.FollowingParam.ServerMaxResultsParam
-import com.twitter.home_mixer.product.following.param.FollowingParamConfig
-import com.twitter.home_mixer.service.HomeMixerAccessPolicy.DefaultHomeMixerAccessPolicy
-import com.twitter.home_mixer.service.HomeMixerAlertConfig.DefaultNotificationGroup
-import com.twitter.product_mixer.component_library.model.cursor.UrtOrderedCursor
-import com.twitter.product_mixer.component_library.premarshaller.cursor.UrtCursorSerializer
-import com.twitter.product_mixer.core.functional_component.common.access_policy.AccessPolicy
-import com.twitter.product_mixer.core.functional_component.common.alert.Alert
-import com.twitter.product_mixer.core.functional_component.common.alert.EmptyResponseRateAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.LatencyAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.P99
-import com.twitter.product_mixer.core.functional_component.common.alert.SuccessRateAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.ThroughputAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.predicate.TriggerIfAbove
-import com.twitter.product_mixer.core.functional_component.common.alert.predicate.TriggerIfBelow
-import com.twitter.product_mixer.core.functional_component.common.alert.predicate.TriggerIfLatencyAbove
-import com.twitter.product_mixer.core.model.common.identifier.ComponentIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.ProductPipelineIdentifier
-import com.twitter.product_mixer.core.model.marshalling.request.Product
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.GapCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.TopCursor
-import com.twitter.product_mixer.core.pipeline.PipelineConfig
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.BadRequest
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.MalformedCursor
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.PipelineFailure
-import com.twitter.product_mixer.core.pipeline.product.ProductPipelineConfig
-import com.twitter.product_mixer.core.product.ProductParamConfig
-import com.twitter.product_mixer.core.util.SortIndexBuilder
-import com.twitter.timelines.configapi.Params
-import com.twitter.timelines.render.{thriftscala => urt}
-import com.twitter.timelines.util.RequestCursorSerializer
-import com.twitter.util.Time
-import com.twitter.util.Try
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class FollowingProductPipelineConfig @Inject() (
-  followingMixerPipelineConfig: FollowingMixerPipelineConfig,
-  followingParamConfig: FollowingParamConfig)
-    extends ProductPipelineConfig[HomeMixerRequest, FollowingQuery, urt.TimelineResponse] {
-
-  override val identifier: ProductPipelineIdentifier = ProductPipelineIdentifier("Following")
-
-  override val product: Product = FollowingProduct
-  override val paramConfig: ProductParamConfig = followingParamConfig
-
-  override def pipelineQueryTransformer(
-    request: HomeMixerRequest,
-    params: Params
-  ): FollowingQuery = {
-    val context = request.productContext match {
-      case Some(context: FollowingProductContext) => context
-      case _ => throw PipelineFailure(BadRequest, "FollowingProductContext not found")
-    }
-
-    val debugOptions = request.debugParams.flatMap(_.debugOptions)
-
-    /**
-     * Unlike other clients, newly created tweets on Android have the sort index set to the current
-     * time instead of the top sort index + 1, so these tweets get stuck at the top of the timeline
-     * if subsequent timeline responses use the sort index from the previous response instead of
-     * the current time.
-     */
-    val pipelineCursor = request.serializedRequestCursor.flatMap { cursor =>
-      Try(UrtCursorSerializer.deserializeOrderedCursor(cursor))
-        .getOrElse(ChronologicalCursorUnmarshaller(RequestCursorSerializer.deserialize(cursor)))
-        .map {
-          case UrtOrderedCursor(_, id, Some(GapCursor), gapBoundaryId)
-              if id.isEmpty || gapBoundaryId.isEmpty =>
-            throw PipelineFailure(MalformedCursor, "Gap Cursor bounds not defined")
-          case topCursor @ UrtOrderedCursor(_, _, Some(TopCursor), _) =>
-            val queryTime = debugOptions.flatMap(_.requestTimeOverride).getOrElse(Time.now)
-            topCursor.copy(initialSortIndex = SortIndexBuilder.timeToId(queryTime))
-          case cursor => cursor
-        }
-    }
-
-    FollowingQuery(
-      params = params,
-      clientContext = request.clientContext,
-      features = None,
-      pipelineCursor = pipelineCursor,
-      requestedMaxResults = Some(params(ServerMaxResultsParam)),
-      debugOptions = debugOptions,
-      deviceContext = context.deviceContext,
-      seenTweetIds = context.seenTweetIds,
-      dspClientContext = context.dspClientContext
-    )
-  }
-
-  override val pipelines: Seq[PipelineConfig] = Seq(followingMixerPipelineConfig)
-
-  override def pipelineSelector(
-    query: FollowingQuery
-  ): ComponentIdentifier = followingMixerPipelineConfig.identifier
-
-  override val alerts: Seq[Alert] = Seq(
-    SuccessRateAlert(
-      notificationGroup = DefaultNotificationGroup,
-      warnPredicate = TriggerIfBelow(99.9, 20, 30),
-      criticalPredicate = TriggerIfBelow(99.9, 30, 30),
-    ),
-    LatencyAlert(
-      notificationGroup = DefaultNotificationGroup,
-      percentile = P99,
-      warnPredicate = TriggerIfLatencyAbove(1100.millis, 15, 30),
-      criticalPredicate = TriggerIfLatencyAbove(1200.millis, 15, 30)
-    ),
-    ThroughputAlert(
-      notificationGroup = DefaultNotificationGroup,
-      warnPredicate = TriggerIfAbove(18000),
-      criticalPredicate = TriggerIfAbove(20000)
-    ),
-    EmptyResponseRateAlert(
-      notificationGroup = DefaultNotificationGroup,
-      warnPredicate = TriggerIfAbove(65),
-      criticalPredicate = TriggerIfAbove(80)
-    )
-  )
-
-  override val debugAccessPolicies: Set[AccessPolicy] = DefaultHomeMixerAccessPolicy
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingWhoToFollowCandidatePipelineConfigBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingWhoToFollowCandidatePipelineConfigBuilder.scala
deleted file mode 100644
index cd5b1795d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/FollowingWhoToFollowCandidatePipelineConfigBuilder.scala
+++ /dev/null
@@ -1,65 +0,0 @@
-package com.twitter.home_mixer.product.following
-
-import com.twitter.home_mixer.functional_component.decorator.urt.builder.HomeWhoToFollowFeedbackActionInfoBuilder
-import com.twitter.home_mixer.functional_component.gate.DismissFatigueGate
-import com.twitter.home_mixer.functional_component.gate.TimelinesPersistenceStoreLastInjectionGate
-import com.twitter.home_mixer.model.HomeFeatures.DismissInfoFeature
-import com.twitter.home_mixer.model.HomeFeatures.PersistenceEntriesFeature
-import com.twitter.home_mixer.model.HomeFeatures.WhoToFollowExcludedUserIdsFeature
-import com.twitter.home_mixer.product.following.model.FollowingQuery
-import com.twitter.home_mixer.product.following.param.FollowingParam.EnableWhoToFollowCandidatePipelineParam
-import com.twitter.home_mixer.product.following.param.FollowingParam.WhoToFollowDisplayLocationParam
-import com.twitter.home_mixer.product.following.param.FollowingParam.WhoToFollowDisplayTypeIdParam
-import com.twitter.home_mixer.product.following.param.FollowingParam.WhoToFollowMinInjectionIntervalParam
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.component_library.decorator.urt.builder.timeline_module.ParamWhoToFollowModuleDisplayTypeBuilder
-import com.twitter.product_mixer.component_library.gate.NonEmptyCandidatesGate
-import com.twitter.product_mixer.component_library.pipeline.candidate.who_to_follow_module.WhoToFollowArmCandidatePipelineConfig
-import com.twitter.product_mixer.component_library.pipeline.candidate.who_to_follow_module.WhoToFollowArmDependentCandidatePipelineConfig
-import com.twitter.product_mixer.component_library.pipeline.candidate.who_to_follow_module.WhoToFollowArmDependentCandidatePipelineConfigBuilder
-import com.twitter.product_mixer.core.functional_component.common.CandidateScope
-import com.twitter.product_mixer.core.functional_component.configapi.StaticParam
-import com.twitter.product_mixer.core.functional_component.gate.BaseGate
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelineservice.model.rich.EntityIdType
-import com.twitter.timelineservice.suggests.thriftscala.SuggestType
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class FollowingWhoToFollowCandidatePipelineConfigBuilder @Inject() (
-  whoToFollowArmDependentCandidatePipelineConfigBuilder: WhoToFollowArmDependentCandidatePipelineConfigBuilder,
-  homeWhoToFollowFeedbackActionInfoBuilder: HomeWhoToFollowFeedbackActionInfoBuilder) {
-
-  def build(
-    requiredNonEmptyPipelines: CandidateScope
-  ): WhoToFollowArmDependentCandidatePipelineConfig[FollowingQuery] = {
-    val gates: Seq[BaseGate[PipelineQuery]] = Seq(
-      TimelinesPersistenceStoreLastInjectionGate(
-        WhoToFollowMinInjectionIntervalParam,
-        PersistenceEntriesFeature,
-        EntityIdType.WhoToFollow
-      ),
-      DismissFatigueGate(SuggestType.WhoToFollow, DismissInfoFeature),
-      NonEmptyCandidatesGate(requiredNonEmptyPipelines)
-    )
-
-    whoToFollowArmDependentCandidatePipelineConfigBuilder.build[FollowingQuery](
-      identifier = WhoToFollowArmCandidatePipelineConfig.identifier,
-      supportedClientParam = Some(EnableWhoToFollowCandidatePipelineParam),
-      alerts = alerts,
-      gates = gates,
-      moduleDisplayTypeBuilder =
-        ParamWhoToFollowModuleDisplayTypeBuilder(WhoToFollowDisplayTypeIdParam),
-      feedbackActionInfoBuilder = Some(homeWhoToFollowFeedbackActionInfoBuilder),
-      displayLocationParam = StaticParam(WhoToFollowDisplayLocationParam.default),
-      excludedUserIdsFeature = Some(WhoToFollowExcludedUserIdsFeature),
-      profileUserIdFeature = None
-    )
-  }
-
-  private val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(70),
-    HomeMixerAlertConfig.BusinessHours.defaultEmptyResponseRateAlert()
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/model/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/model/BUILD.bazel
deleted file mode 100644
index 70d5e5af9..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/model/BUILD.bazel
+++ /dev/null
@@ -1,22 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/param",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/cursor",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/query/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/pipeline/candidate/flexible_injection_pipeline",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-        "stringcenter/client",
-        "stringcenter/client/src/main/java",
-    ],
-    exports = [
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/cursor",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/query/ads",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/model/FollowingQuery.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/model/FollowingQuery.scala
deleted file mode 100644
index c45c7cf68..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/model/FollowingQuery.scala
+++ /dev/null
@@ -1,51 +0,0 @@
-package com.twitter.home_mixer.product.following.model
-
-import com.twitter.adserver.thriftscala.HomeTimelineType
-import com.twitter.adserver.thriftscala.TimelineRequestParams
-import com.twitter.home_mixer.model.HomeAdsQuery
-import com.twitter.dspbidder.commons.{thriftscala => dsp}
-import com.twitter.home_mixer.model.request.DeviceContext
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.home_mixer.model.request.HasSeenTweetIds
-import com.twitter.home_mixer.model.request.FollowingProduct
-import com.twitter.onboarding.task.service.{thriftscala => ots}
-import com.twitter.product_mixer.component_library.model.cursor.UrtOrderedCursor
-import com.twitter.product_mixer.component_library.pipeline.candidate.flexible_injection_pipeline.transformer.HasFlipInjectionParams
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.marshalling.request._
-import com.twitter.product_mixer.core.pipeline.HasPipelineCursor
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelines.configapi.Params
-
-case class FollowingQuery(
-  override val params: Params,
-  override val clientContext: ClientContext,
-  override val pipelineCursor: Option[UrtOrderedCursor],
-  override val requestedMaxResults: Option[Int],
-  override val debugOptions: Option[DebugOptions],
-  override val features: Option[FeatureMap],
-  override val deviceContext: Option[DeviceContext],
-  override val seenTweetIds: Option[Seq[Long]],
-  override val dspClientContext: Option[dsp.DspClientContext])
-    extends PipelineQuery
-    with HasPipelineCursor[UrtOrderedCursor]
-    with HasDeviceContext
-    with HasSeenTweetIds
-    with HasFlipInjectionParams
-    with HomeAdsQuery {
-  override val product: Product = FollowingProduct
-
-  override def withFeatureMap(features: FeatureMap): FollowingQuery =
-    copy(features = Some(features))
-
-  override val timelineRequestParams: Option[TimelineRequestParams] =
-    Some(TimelineRequestParams(homeTimelineType = Some(HomeTimelineType.HomeLatest)))
-
-  // Fields below are used for FLIP Injection in Onboarding Task Service (OTS)
-  override val displayLocation: ots.DisplayLocation = ots.DisplayLocation.HomeLatestTimeline
-  override val rankingDisablerWithLatestControlsAvailable: Option[Boolean] = None
-  override val isEmptyState: Option[Boolean] = None
-  override val isFirstRequestAfterSignup: Option[Boolean] = None
-  override val isEndOfTimeline: Option[Boolean] = None
-  override val timelineId: Option[Long] = None
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/model/HomeMixerExternalStrings.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/model/HomeMixerExternalStrings.scala
deleted file mode 100644
index 9c6faafa7..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/model/HomeMixerExternalStrings.scala
+++ /dev/null
@@ -1,87 +0,0 @@
-package com.twitter.home_mixer.product.following.model
-
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.ExternalStringRegistry
-import javax.inject.Inject
-import javax.inject.Provider
-import javax.inject.Singleton
-
-@Singleton
-class HomeMixerExternalStrings @Inject() (
-  @ProductScoped externalStringRegistryProvider: Provider[ExternalStringRegistry]) {
-  val seeNewTweetsString =
-    externalStringRegistryProvider.get().createProdString("SeeNewTweets")
-  val tweetedString =
-    externalStringRegistryProvider.get().createProdString("Tweeted")
-  val muteUserString =
-    externalStringRegistryProvider.get().createProdString("Feedback.muteUser")
-  val blockUserString = externalStringRegistryProvider.get().createProdString("Feedback.blockUser")
-  val unfollowUserString =
-    externalStringRegistryProvider.get().createProdString("Feedback.unfollowUser")
-  val unfollowUserConfirmationString =
-    externalStringRegistryProvider.get().createProdString("Feedback.unfollowUserConfirmation")
-  val reportTweetString =
-    externalStringRegistryProvider.get().createProdString("Feedback.reportTweet")
-  val dontLikeString = externalStringRegistryProvider.get().createProdString("Feedback.dontLike")
-  val dontLikeConfirmationString =
-    externalStringRegistryProvider.get().createProdString("Feedback.dontLikeConfirmation")
-  val showFewerTweetsString =
-    externalStringRegistryProvider.get().createProdString("Feedback.showFewerTweets")
-  val showFewerTweetsConfirmationString =
-    externalStringRegistryProvider.get().createProdString("Feedback.showFewerTweetsConfirmation")
-  val showFewerRetweetsString =
-    externalStringRegistryProvider.get().createProdString("Feedback.showFewerRetweets")
-  val showFewerRetweetsConfirmationString =
-    externalStringRegistryProvider.get().createProdString("Feedback.showFewerRetweetsConfirmation")
-  val notRelevantString =
-    externalStringRegistryProvider.get().createProdString("Feedback.notRelevant")
-  val notRelevantConfirmationString =
-    externalStringRegistryProvider.get().createProdString("Feedback.notRelevantConfirmation")
-
-  val socialContextOneUserLikedString =
-    externalStringRegistryProvider.get().createProdString("SocialContext.oneUserLiked")
-  val socialContextTwoUsersLikedString =
-    externalStringRegistryProvider.get().createProdString("SocialContext.twoUsersLiked")
-  val socialContextMoreUsersLikedString =
-    externalStringRegistryProvider.get().createProdString("SocialContext.moreUsersLiked")
-  val socialContextLikedByTimelineTitle =
-    externalStringRegistryProvider.get().createProdString("SocialContext.likedByTimelineTitle")
-
-  val socialContextOneUserFollowsString =
-    externalStringRegistryProvider.get().createProdString("SocialContext.oneUserFollows")
-  val socialContextTwoUsersFollowString =
-    externalStringRegistryProvider.get().createProdString("SocialContext.twoUsersFollow")
-  val socialContextMoreUsersFollowString =
-    externalStringRegistryProvider.get().createProdString("SocialContext.moreUsersFollow")
-  val socialContextFollowedByTimelineTitle =
-    externalStringRegistryProvider.get().createProdString("SocialContext.followedByTimelineTitle")
-
-  val socialContextYouMightLikeString =
-    externalStringRegistryProvider.get().createProdString("SocialContext.youMightLike")
-
-  val socialContextExtendedReply =
-    externalStringRegistryProvider.get().createProdString("SocialContext.extendedReply")
-  val socialContextReceivedReply =
-    externalStringRegistryProvider.get().createProdString("SocialContext.receivedReply")
-
-  val socialContextPopularVideoString =
-    externalStringRegistryProvider.get().createProdString("SocialContext.popularVideo")
-
-  val socialContextPopularInYourAreaString =
-    externalStringRegistryProvider.get().createProdString("PopgeoTweet.socialProof")
-
-  val listToFollowModuleHeaderString =
-    externalStringRegistryProvider.get().createProdString("ListToFollowModule.header")
-  val listToFollowModuleFooterString =
-    externalStringRegistryProvider.get().createProdString("ListToFollowModule.footer")
-  val pinnedListsModuleHeaderString =
-    externalStringRegistryProvider.get().createProdString("PinnedListModule.header")
-  val pinnedListsModuleEmptyStateMessageString =
-    externalStringRegistryProvider.get().createProdString("PinnedListModule.emptyStateMessage")
-
-  val ownedSubscribedListsModuleHeaderString =
-    externalStringRegistryProvider.get().createProdString("OwnedSubscribedListModule.header")
-  val ownedSubscribedListsModuleEmptyStateMessageString =
-    externalStringRegistryProvider
-      .get().createProdString("OwnedSubscribedListModule.emptyStateMessage")
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/param/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/param/BUILD.bazel
deleted file mode 100644
index a56e3a1fd..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/param/BUILD.bazel
+++ /dev/null
@@ -1,14 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/javax/inject:javax.inject",
-        "configapi/configapi-core/src/main/scala/com/twitter/timelines/configapi",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param/decider",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/decorator/urt",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-        "util/util-core/src/main/scala/com/twitter/conversions",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/param/FollowingParam.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/param/FollowingParam.scala
deleted file mode 100644
index e43990507..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/param/FollowingParam.scala
+++ /dev/null
@@ -1,85 +0,0 @@
-package com.twitter.home_mixer.product.following.param
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.product_mixer.component_library.decorator.urt.builder.timeline_module.WhoToFollowModuleDisplayType
-import com.twitter.timelines.configapi.DurationConversion
-import com.twitter.timelines.configapi.FSBoundedParam
-import com.twitter.timelines.configapi.FSEnumParam
-import com.twitter.timelines.configapi.FSParam
-import com.twitter.timelines.configapi.HasDurationConversion
-import com.twitter.util.Duration
-
-object FollowingParam {
-  val SupportedClientFSName = "following_supported_client"
-
-  object ServerMaxResultsParam
-      extends FSBoundedParam[Int](
-        name = "following_server_max_results",
-        default = 100,
-        min = 1,
-        max = 500
-      )
-
-  object EnableWhoToFollowCandidatePipelineParam
-      extends FSParam[Boolean](
-        name = "following_enable_who_to_follow",
-        default = true
-      )
-
-  object EnableAdsCandidatePipelineParam
-      extends FSParam[Boolean](
-        name = "following_enable_ads",
-        default = true
-      )
-
-  object EnableFlipInjectionModuleCandidatePipelineParam
-      extends FSParam[Boolean](
-        name = "following_enable_flip_inline_injection_module",
-        default = true
-      )
-
-  object FlipInlineInjectionModulePosition
-      extends FSBoundedParam[Int](
-        name = "following_flip_inline_injection_module_position",
-        default = 0,
-        min = 0,
-        max = 1000
-      )
-
-  object WhoToFollowPositionParam
-      extends FSBoundedParam[Int](
-        name = "following_who_to_follow_position",
-        default = 5,
-        min = 0,
-        max = 99
-      )
-
-  object WhoToFollowMinInjectionIntervalParam
-      extends FSBoundedParam[Duration](
-        "following_who_to_follow_min_injection_interval_in_minutes",
-        default = 1800.minutes,
-        min = 0.minutes,
-        max = 6000.minutes)
-      with HasDurationConversion {
-    override val durationConversion: DurationConversion = DurationConversion.FromMinutes
-  }
-
-  object WhoToFollowDisplayTypeIdParam
-      extends FSEnumParam[WhoToFollowModuleDisplayType.type](
-        name = "following_enable_who_to_follow_display_type_id",
-        default = WhoToFollowModuleDisplayType.Vertical,
-        enum = WhoToFollowModuleDisplayType
-      )
-
-  object WhoToFollowDisplayLocationParam
-      extends FSParam[String](
-        name = "following_who_to_follow_display_location",
-        default = "timeline_reverse_chron"
-      )
-
-  object EnableFastAds
-      extends FSParam[Boolean](
-        name = "following_enable_fast_ads",
-        default = true
-      )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/param/FollowingParamConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/param/FollowingParamConfig.scala
deleted file mode 100644
index df3b54801..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/param/FollowingParamConfig.scala
+++ /dev/null
@@ -1,34 +0,0 @@
-package com.twitter.home_mixer.product.following.param
-
-import com.twitter.home_mixer.param.decider.DeciderKey
-import com.twitter.home_mixer.product.following.param.FollowingParam._
-import com.twitter.product_mixer.core.product.ProductParamConfig
-import com.twitter.servo.decider.DeciderKeyName
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class FollowingParamConfig @Inject() () extends ProductParamConfig {
-  override val enabledDeciderKey: DeciderKeyName = DeciderKey.EnableFollowingProduct
-  override val supportedClientFSName: String = SupportedClientFSName
-
-  override val booleanFSOverrides =
-    Seq(
-      EnableFlipInjectionModuleCandidatePipelineParam,
-      EnableWhoToFollowCandidatePipelineParam,
-      EnableAdsCandidatePipelineParam,
-      EnableFastAds,
-    )
-
-  override val boundedIntFSOverrides = Seq(
-    FlipInlineInjectionModulePosition,
-    WhoToFollowPositionParam,
-    ServerMaxResultsParam
-  )
-
-  override val stringFSOverrides = Seq(WhoToFollowDisplayLocationParam)
-
-  override val boundedDurationFSOverrides = Seq(WhoToFollowMinInjectionIntervalParam)
-
-  override val enumFSOverrides = Seq(WhoToFollowDisplayTypeIdParam)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/BUILD.bazel
deleted file mode 100644
index 5f597c78b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/BUILD.bazel
+++ /dev/null
@@ -1,101 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/javax/inject:javax.inject",
-        "ads-injection/lib/src/main/scala/com/twitter/goldfinch/api",
-        "finagle/finagle-memcached/src/main/scala",
-        "finatra/inject/inject-core/src/main/scala",
-        "finatra/inject/inject-core/src/main/scala/com/twitter/inject",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/candidate_source",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/scorer",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/candidate_source",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/filter",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/functional_component/gate",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/query_transformer",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/response_transformer",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/scorer",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/service",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/earlybird",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/timeline_scorer",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/timeline_service",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/decorator/urt",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/candidate/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/candidate/param_gated",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/candidate/tweet_is_nsfw",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/candidate/tweet_tweetypie",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/async",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/impressed_tweets",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/param_gated",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/social_graph",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/filter",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/gate",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/pipeline/candidate/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/pipeline/candidate/flexible_injection_pipeline",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/pipeline/candidate/who_to_follow_module",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/pipeline/candidate/who_to_subscribe_module",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/premarshaller/urt",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/scorer/tweet_tlx",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/selector",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/selector/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/side_effect",
-        "product-mixer/core/src/main/java/com/twitter/product_mixer/core/product/guice/scope",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/candidate_source/product_pipeline",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/configapi",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/decorator",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/decorator/urt/builder",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/marshaller/request",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/marshaller/response/urt",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/common/presentation",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/request",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/response/urt",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/response/urt/item",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/candidate",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/mixer",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/product",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/recommendation",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/scoring",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product/guice",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/quality_factor",
-        "src/java/com/twitter/search/common/util/lang",
-        "src/scala/com/twitter/suggests/controller_data",
-        "src/thrift/com/twitter/search:earlybird-scala",
-        "src/thrift/com/twitter/search/common:constants-java",
-        "src/thrift/com/twitter/timelines/render:thrift-scala",
-        "src/thrift/com/twitter/timelines/suggests/common:poly_data_record-java",
-        "src/thrift/com/twitter/timelineservice:thrift-scala",
-        "stitch/stitch-tweetypie",
-        "timelinemixer/server/src/main/scala/com/twitter/timelinemixer/injection/model/candidate",
-        "timelines/src/main/scala/com/twitter/timelines/injection/scribe",
-        "timelines/src/main/scala/com/twitter/timelines/model/candidate",
-    ],
-    exports = [
-        "src/thrift/com/twitter/timelines/render:thrift-scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouAdsCandidatePipelineBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouAdsCandidatePipelineBuilder.scala
deleted file mode 100644
index 99ed0f584..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouAdsCandidatePipelineBuilder.scala
+++ /dev/null
@@ -1,94 +0,0 @@
-package com.twitter.home_mixer.product.for_you
-
-import com.twitter.product_mixer.component_library.feature_hydrator.candidate.param_gated.ParamGatedCandidateFeatureHydrator
-import com.twitter.adserver.{thriftscala => ads}
-import com.twitter.home_mixer.functional_component.decorator.builder.HomeAdsClientEventDetailsBuilder
-import com.twitter.home_mixer.functional_component.gate.ExcludeSoftUserGate
-import com.twitter.home_mixer.param.HomeGlobalParams
-import com.twitter.home_mixer.param.HomeGlobalParams.EnableAdvertiserBrandSafetySettingsFeatureHydratorParam
-import com.twitter.home_mixer.product.for_you.model.ForYouQuery
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.AdsNumOrganicItemsParam
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.component_library.candidate_source.ads.AdsProdThriftCandidateSource
-import com.twitter.product_mixer.component_library.decorator.urt.UrtItemCandidateDecorator
-import com.twitter.product_mixer.component_library.decorator.urt.builder.contextual_ref.ContextualTweetRefBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.item.ad.AdsCandidateUrtItemBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.metadata.ClientEventInfoBuilder
-import com.twitter.product_mixer.component_library.feature_hydrator.candidate.ads.AdvertiserBrandSafetySettingsFeatureHydrator
-import com.twitter.product_mixer.component_library.model.candidate.ads.AdsCandidate
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.AdsCandidatePipelineConfig
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.AdsCandidatePipelineConfigBuilder
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.StaticAdsDisplayLocationBuilder
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.ValidAdImpressionIdFilter
-import com.twitter.product_mixer.core.functional_component.common.CandidateScope
-import com.twitter.product_mixer.core.gate.ParamNotGate
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.rtf.safety_level.TimelineHomePromotedHydrationSafetyLevel
-import com.twitter.product_mixer.core.model.marshalling.response.urt.contextual_ref.TweetHydrationContext
-import com.twitter.timelines.injection.scribe.InjectionScribeUtil
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ForYouAdsCandidatePipelineBuilder @Inject() (
-  adsCandidatePipelineConfigBuilder: AdsCandidatePipelineConfigBuilder,
-  adsCandidateSource: AdsProdThriftCandidateSource,
-  advertiserBrandSafetySettingsFeatureHydrator: AdvertiserBrandSafetySettingsFeatureHydrator[
-    ForYouQuery,
-    AdsCandidate
-  ]) {
-
-  private val identifier: CandidatePipelineIdentifier = CandidatePipelineIdentifier("ForYouAds")
-
-  private val suggestType = st.SuggestType.Promoted
-
-  private val clientEventInfoBuilder = ClientEventInfoBuilder(
-    component = InjectionScribeUtil.scribeComponent(suggestType).get,
-    detailsBuilder = Some(HomeAdsClientEventDetailsBuilder(Some(suggestType.name)))
-  )
-
-  private val contextualTweetRefBuilder = ContextualTweetRefBuilder(
-    TweetHydrationContext(
-      safetyLevelOverride = Some(TimelineHomePromotedHydrationSafetyLevel),
-      outerTweetContext = None
-    ))
-
-  private val decorator = UrtItemCandidateDecorator(
-    AdsCandidateUrtItemBuilder(
-      tweetClientEventInfoBuilder = Some(clientEventInfoBuilder),
-      contextualTweetRefBuilder = Some(contextualTweetRefBuilder)
-    ))
-
-  private val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(),
-    HomeMixerAlertConfig.BusinessHours.defaultEmptyResponseRateAlert()
-  )
-
-  def build(
-    organicCandidatePipelines: Option[CandidateScope] = None
-  ): AdsCandidatePipelineConfig[ForYouQuery] =
-    adsCandidatePipelineConfigBuilder.build[ForYouQuery](
-      adsCandidateSource = adsCandidateSource,
-      identifier = identifier,
-      adsDisplayLocationBuilder = StaticAdsDisplayLocationBuilder(ads.DisplayLocation.TimelineHome),
-      estimateNumOrganicItems = _.params(AdsNumOrganicItemsParam).toShort,
-      gates = Seq(
-        ParamNotGate(
-          name = "AdsDisableInjectionBasedOnUserRole",
-          param = HomeGlobalParams.AdsDisableInjectionBasedOnUserRoleParam
-        ),
-        ExcludeSoftUserGate
-      ),
-      filters = Seq(ValidAdImpressionIdFilter),
-      postFilterFeatureHydration = Seq(
-        ParamGatedCandidateFeatureHydrator(
-          EnableAdvertiserBrandSafetySettingsFeatureHydratorParam,
-          advertiserBrandSafetySettingsFeatureHydrator
-        )
-      ),
-      decorator = Some(decorator),
-      alerts = alerts,
-      urtRequest = Some(true),
-    )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouAdsDependentCandidatePipelineBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouAdsDependentCandidatePipelineBuilder.scala
deleted file mode 100644
index ef65d7062..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouAdsDependentCandidatePipelineBuilder.scala
+++ /dev/null
@@ -1,111 +0,0 @@
-package com.twitter.home_mixer.product.for_you
-
-import com.twitter.adserver.{thriftscala => ads}
-import com.twitter.home_mixer.functional_component.decorator.builder.HomeAdsClientEventDetailsBuilder
-import com.twitter.home_mixer.functional_component.gate.ExcludeSoftUserGate
-import com.twitter.home_mixer.model.HomeFeatures.TweetLanguageFeature
-import com.twitter.home_mixer.model.HomeFeatures.TweetTextFeature
-import com.twitter.home_mixer.param.HomeGlobalParams
-import com.twitter.home_mixer.param.HomeGlobalParams.EnableAdvertiserBrandSafetySettingsFeatureHydratorParam
-import com.twitter.home_mixer.product.for_you.model.ForYouQuery
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.product_mixer.component_library.candidate_source.ads.AdsProdThriftCandidateSource
-import com.twitter.product_mixer.component_library.decorator.urt.UrtItemCandidateDecorator
-import com.twitter.product_mixer.component_library.decorator.urt.builder.contextual_ref.ContextualTweetRefBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.item.ad.AdsCandidateUrtItemBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.metadata.ClientEventInfoBuilder
-import com.twitter.product_mixer.component_library.feature_hydrator.candidate.ads.AdvertiserBrandSafetySettingsFeatureHydrator
-import com.twitter.product_mixer.component_library.feature_hydrator.candidate.param_gated.ParamGatedCandidateFeatureHydrator
-import com.twitter.product_mixer.component_library.gate.NonEmptyCandidatesGate
-import com.twitter.product_mixer.component_library.model.candidate.ads.AdsCandidate
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.AdsDependentCandidatePipelineConfig
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.AdsDependentCandidatePipelineConfigBuilder
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.CountTruncatedItemCandidatesFromPipelines
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.StaticAdsDisplayLocationBuilder
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.TruncatedPipelineScopedOrganicItems
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.ValidAdImpressionIdFilter
-import com.twitter.product_mixer.core.functional_component.common.CandidateScope
-import com.twitter.product_mixer.core.gate.ParamNotGate
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.rtf.safety_level.TimelineHomePromotedHydrationSafetyLevel
-import com.twitter.product_mixer.core.model.marshalling.response.urt.contextual_ref.TweetHydrationContext
-import com.twitter.timelines.injection.scribe.InjectionScribeUtil
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ForYouAdsDependentCandidatePipelineBuilder @Inject() (
-  adsCandidatePipelineConfigBuilder: AdsDependentCandidatePipelineConfigBuilder,
-  adsCandidateSource: AdsProdThriftCandidateSource,
-  advertiserBrandSafetySettingsFeatureHydrator: AdvertiserBrandSafetySettingsFeatureHydrator[
-    ForYouQuery,
-    AdsCandidate
-  ]) {
-
-  private val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("ForYouAdsDependent")
-
-  private val suggestType = st.SuggestType.Promoted
-
-  private val MaxOrganicTweets = 35
-
-  private val clientEventInfoBuilder = ClientEventInfoBuilder(
-    component = InjectionScribeUtil.scribeComponent(suggestType).get,
-    detailsBuilder = Some(HomeAdsClientEventDetailsBuilder(Some(suggestType.name)))
-  )
-
-  private val contextualTweetRefBuilder = ContextualTweetRefBuilder(
-    TweetHydrationContext(
-      safetyLevelOverride = Some(TimelineHomePromotedHydrationSafetyLevel),
-      outerTweetContext = None
-    ))
-
-  private val decorator = UrtItemCandidateDecorator(
-    AdsCandidateUrtItemBuilder(
-      tweetClientEventInfoBuilder = Some(clientEventInfoBuilder),
-      contextualTweetRefBuilder = Some(contextualTweetRefBuilder)
-    ))
-
-  private val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(),
-    HomeMixerAlertConfig.BusinessHours.defaultEmptyResponseRateAlert()
-  )
-
-  def build(
-    organicCandidatePipelines: CandidateScope
-  ): AdsDependentCandidatePipelineConfig[ForYouQuery] =
-    adsCandidatePipelineConfigBuilder.build[ForYouQuery](
-      adsCandidateSource = adsCandidateSource,
-      identifier = identifier,
-      adsDisplayLocationBuilder = StaticAdsDisplayLocationBuilder(ads.DisplayLocation.TimelineHome),
-      getOrganicItems = TruncatedPipelineScopedOrganicItems(
-        pipelines = organicCandidatePipelines,
-        textFeature = TweetTextFeature,
-        languageFeature = TweetLanguageFeature,
-        ordering = CandidatesUtil.scoreOrdering,
-        maxCount = MaxOrganicTweets
-      ),
-      countNumOrganicItems =
-        CountTruncatedItemCandidatesFromPipelines(organicCandidatePipelines, MaxOrganicTweets),
-      gates = Seq(
-        ParamNotGate(
-          name = "AdsDisableInjectionBasedOnUserRole",
-          param = HomeGlobalParams.AdsDisableInjectionBasedOnUserRoleParam
-        ),
-        ExcludeSoftUserGate,
-        NonEmptyCandidatesGate(organicCandidatePipelines)
-      ),
-      filters = Seq(ValidAdImpressionIdFilter),
-      postFilterFeatureHydration = Seq(
-        ParamGatedCandidateFeatureHydrator(
-          EnableAdvertiserBrandSafetySettingsFeatureHydratorParam,
-          advertiserBrandSafetySettingsFeatureHydrator
-        )
-      ),
-      decorator = Some(decorator),
-      alerts = alerts,
-      urtRequest = Some(true)
-    )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouConversationServiceCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouConversationServiceCandidatePipelineConfig.scala
deleted file mode 100644
index 494d3a584..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouConversationServiceCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,138 +0,0 @@
-package com.twitter.home_mixer.product.for_you
-
-import com.twitter.home_mixer.candidate_pipeline.ConversationServiceResponseFeatureTransformer
-import com.twitter.home_mixer.functional_component.decorator.HomeConversationServiceCandidateDecorator
-import com.twitter.home_mixer.functional_component.decorator.urt.builder.HomeFeedbackActionInfoBuilder
-import com.twitter.home_mixer.functional_component.feature_hydrator.InNetworkFeatureHydrator
-import com.twitter.home_mixer.functional_component.feature_hydrator.NamesFeatureHydrator
-import com.twitter.home_mixer.functional_component.feature_hydrator.TweetypieFeatureHydrator
-import com.twitter.home_mixer.functional_component.filter.InvalidConversationModuleFilter
-import com.twitter.home_mixer.functional_component.filter.InvalidSubscriptionTweetFilter
-import com.twitter.home_mixer.functional_component.filter.PreviouslyServedTweetsFilter
-import com.twitter.home_mixer.functional_component.filter.RetweetDeduplicationFilter
-import com.twitter.home_mixer.model.HomeFeatures.IsHydratedFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedTweetDroppedFeature
-import com.twitter.home_mixer.model.HomeFeatures.TimelineServiceTweetsFeature
-import com.twitter.home_mixer.product.for_you.model.ForYouQuery
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.component_library.candidate_source.tweetconvosvc.ConversationServiceCandidateSource
-import com.twitter.product_mixer.component_library.candidate_source.tweetconvosvc.ConversationServiceCandidateSourceRequest
-import com.twitter.product_mixer.component_library.candidate_source.tweetconvosvc.TweetWithConversationMetadata
-import com.twitter.product_mixer.component_library.filter.FeatureFilter
-import com.twitter.product_mixer.component_library.filter.PredicateFeatureFilter
-import com.twitter.product_mixer.component_library.gate.NoCandidatesGate
-import com.twitter.product_mixer.component_library.gate.NonEmptySeqFeatureGate
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.BaseCandidateSource
-import com.twitter.product_mixer.core.functional_component.common.SpecificPipelines
-import com.twitter.product_mixer.core.functional_component.decorator.CandidateDecorator
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BaseCandidateFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.gate.BaseGate
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.DependentCandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.candidate.DependentCandidatePipelineConfig
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Candidate Pipeline Config that fetches Tweet ancestors from Conversation Service Candidate Source
- */
-@Singleton
-class ForYouConversationServiceCandidatePipelineConfig @Inject() (
-  forYouScoredTweetsCandidatePipelineConfig: ForYouScoredTweetsCandidatePipelineConfig,
-  forYouTimelineScorerCandidatePipelineConfig: ForYouTimelineScorerCandidatePipelineConfig,
-  conversationServiceCandidateSource: ConversationServiceCandidateSource,
-  tweetypieFeatureHydrator: TweetypieFeatureHydrator,
-  namesFeatureHydrator: NamesFeatureHydrator,
-  invalidSubscriptionTweetFilter: InvalidSubscriptionTweetFilter,
-  homeFeedbackActionInfoBuilder: HomeFeedbackActionInfoBuilder)
-    extends DependentCandidatePipelineConfig[
-      ForYouQuery,
-      ConversationServiceCandidateSourceRequest,
-      TweetWithConversationMetadata,
-      TweetCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("ForYouConversationService")
-
-  override val gates: Seq[BaseGate[ForYouQuery]] = Seq(
-    NoCandidatesGate(
-      SpecificPipelines(
-        forYouTimelineScorerCandidatePipelineConfig.identifier,
-        forYouScoredTweetsCandidatePipelineConfig.identifier
-      )
-    ),
-    NonEmptySeqFeatureGate(TimelineServiceTweetsFeature)
-  )
-
-  override val candidateSource: BaseCandidateSource[
-    ConversationServiceCandidateSourceRequest,
-    TweetWithConversationMetadata
-  ] = conversationServiceCandidateSource
-
-  override val queryTransformer: DependentCandidatePipelineQueryTransformer[
-    ForYouQuery,
-    ConversationServiceCandidateSourceRequest
-  ] = { (query, candidates) =>
-    val timelineServiceTweets = query.features
-      .map(_.getOrElse(TimelineServiceTweetsFeature, Seq.empty)).getOrElse(Seq.empty)
-
-    val tweetsWithConversationMetadata = timelineServiceTweets.map { id =>
-      TweetWithConversationMetadata(
-        tweetId = id,
-        userId = None,
-        sourceTweetId = None,
-        sourceUserId = None,
-        inReplyToTweetId = None,
-        conversationId = None,
-        ancestors = Seq.empty
-      )
-    }
-    ConversationServiceCandidateSourceRequest(tweetsWithConversationMetadata)
-  }
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[TweetWithConversationMetadata]
-  ] = Seq(ConversationServiceResponseFeatureTransformer)
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    TweetWithConversationMetadata,
-    TweetCandidate
-  ] = { sourceResult => TweetCandidate(id = sourceResult.tweetId) }
-
-  override val preFilterFeatureHydrationPhase1: Seq[
-    BaseCandidateFeatureHydrator[ForYouQuery, TweetCandidate, _]
-  ] = Seq(
-    InNetworkFeatureHydrator,
-    tweetypieFeatureHydrator
-  )
-
-  override def filters: Seq[Filter[ForYouQuery, TweetCandidate]] = Seq(
-    PreviouslyServedTweetsFilter,
-    RetweetDeduplicationFilter,
-    FeatureFilter.fromFeature(FilterIdentifier("TweetypieHydrated"), IsHydratedFeature),
-    PredicateFeatureFilter.fromPredicate(
-      FilterIdentifier("QuotedTweetDropped"),
-      shouldKeepCandidate = { features => !features.getOrElse(QuotedTweetDroppedFeature, false) }
-    ),
-    invalidSubscriptionTweetFilter,
-    InvalidConversationModuleFilter
-  )
-
-  override val postFilterFeatureHydration: Seq[
-    BaseCandidateFeatureHydrator[ForYouQuery, TweetCandidate, _]
-  ] = Seq(namesFeatureHydrator)
-
-  override val decorator: Option[CandidateDecorator[ForYouQuery, TweetCandidate]] =
-    HomeConversationServiceCandidateDecorator(homeFeedbackActionInfoBuilder)
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(),
-    HomeMixerAlertConfig.BusinessHours.defaultEmptyResponseRateAlert()
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouProductPipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouProductPipelineConfig.scala
deleted file mode 100644
index e1cf2161c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouProductPipelineConfig.scala
+++ /dev/null
@@ -1,142 +0,0 @@
-package com.twitter.home_mixer.product.for_you
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.marshaller.timelines.ChronologicalCursorUnmarshaller
-import com.twitter.home_mixer.model.request.ForYouProduct
-import com.twitter.home_mixer.model.request.ForYouProductContext
-import com.twitter.home_mixer.model.request.HomeMixerRequest
-import com.twitter.home_mixer.product.for_you.model.ForYouQuery
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.EnablePushToHomeMixerPipelineParam
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.EnableScoredTweetsMixerPipelineParam
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.ServerMaxResultsParam
-import com.twitter.home_mixer.product.for_you.param.ForYouParamConfig
-import com.twitter.home_mixer.service.HomeMixerAccessPolicy.DefaultHomeMixerAccessPolicy
-import com.twitter.home_mixer.service.HomeMixerAlertConfig.DefaultNotificationGroup
-import com.twitter.product_mixer.component_library.model.cursor.UrtOrderedCursor
-import com.twitter.product_mixer.component_library.premarshaller.cursor.UrtCursorSerializer
-import com.twitter.product_mixer.core.functional_component.common.access_policy.AccessPolicy
-import com.twitter.product_mixer.core.functional_component.common.alert.Alert
-import com.twitter.product_mixer.core.functional_component.common.alert.EmptyResponseRateAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.LatencyAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.P99
-import com.twitter.product_mixer.core.functional_component.common.alert.SuccessRateAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.ThroughputAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.predicate.TriggerIfAbove
-import com.twitter.product_mixer.core.functional_component.common.alert.predicate.TriggerIfBelow
-import com.twitter.product_mixer.core.functional_component.common.alert.predicate.TriggerIfLatencyAbove
-import com.twitter.product_mixer.core.model.common.identifier.ComponentIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.ProductPipelineIdentifier
-import com.twitter.product_mixer.core.model.marshalling.request.Product
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.TopCursor
-import com.twitter.product_mixer.core.pipeline.PipelineConfig
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.BadRequest
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.PipelineFailure
-import com.twitter.product_mixer.core.pipeline.product.ProductPipelineConfig
-import com.twitter.product_mixer.core.product.ProductParamConfig
-import com.twitter.product_mixer.core.util.SortIndexBuilder
-import com.twitter.timelines.configapi.Params
-import com.twitter.timelines.render.{thriftscala => urt}
-import com.twitter.timelines.util.RequestCursorSerializer
-import com.twitter.util.Time
-import com.twitter.util.Try
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ForYouProductPipelineConfig @Inject() (
-  forYouTimelineScorerMixerPipelineConfig: ForYouTimelineScorerMixerPipelineConfig,
-  forYouScoredTweetsMixerPipelineConfig: ForYouScoredTweetsMixerPipelineConfig,
-  forYouPushToHomeMixerPipelineConfig: ForYouPushToHomeMixerPipelineConfig,
-  forYouParamConfig: ForYouParamConfig)
-    extends ProductPipelineConfig[HomeMixerRequest, ForYouQuery, urt.TimelineResponse] {
-
-  override val identifier: ProductPipelineIdentifier = ProductPipelineIdentifier("ForYou")
-
-  override val product: Product = ForYouProduct
-
-  override val paramConfig: ProductParamConfig = forYouParamConfig
-
-  override def pipelineQueryTransformer(
-    request: HomeMixerRequest,
-    params: Params
-  ): ForYouQuery = {
-    val context = request.productContext match {
-      case Some(context: ForYouProductContext) => context
-      case _ => throw PipelineFailure(BadRequest, "ForYouProductContext not found")
-    }
-
-    val debugOptions = request.debugParams.flatMap(_.debugOptions)
-
-    /**
-     * Unlike other clients, newly created tweets on Android have the sort index set to the current
-     * time instead of the top sort index + 1, so these tweets get stuck at the top of the timeline
-     * if subsequent timeline responses use the sort index from the previous response instead of
-     * the current time.
-     */
-    val pipelineCursor = request.serializedRequestCursor.flatMap { cursor =>
-      Try(UrtCursorSerializer.deserializeOrderedCursor(cursor))
-        .getOrElse(ChronologicalCursorUnmarshaller(RequestCursorSerializer.deserialize(cursor)))
-        .map {
-          case topCursor @ UrtOrderedCursor(_, _, Some(TopCursor), _) =>
-            val queryTime = debugOptions.flatMap(_.requestTimeOverride).getOrElse(Time.now)
-            topCursor.copy(initialSortIndex = SortIndexBuilder.timeToId(queryTime))
-          case cursor => cursor
-        }
-    }
-
-    ForYouQuery(
-      params = params,
-      clientContext = request.clientContext,
-      features = None,
-      pipelineCursor = pipelineCursor,
-      requestedMaxResults = Some(params(ServerMaxResultsParam)),
-      debugOptions = debugOptions,
-      deviceContext = context.deviceContext,
-      seenTweetIds = context.seenTweetIds,
-      dspClientContext = context.dspClientContext,
-      pushToHomeTweetId = context.pushToHomeTweetId
-    )
-  }
-
-  override val pipelines: Seq[PipelineConfig] = Seq(
-    forYouTimelineScorerMixerPipelineConfig,
-    forYouScoredTweetsMixerPipelineConfig,
-    forYouPushToHomeMixerPipelineConfig
-  )
-
-  override def pipelineSelector(
-    query: ForYouQuery
-  ): ComponentIdentifier = {
-    if (query.pushToHomeTweetId.isDefined && query.params(EnablePushToHomeMixerPipelineParam))
-      forYouPushToHomeMixerPipelineConfig.identifier
-    else if (query.params(EnableScoredTweetsMixerPipelineParam))
-      forYouScoredTweetsMixerPipelineConfig.identifier
-    else forYouTimelineScorerMixerPipelineConfig.identifier
-  }
-
-  override val alerts: Seq[Alert] = Seq(
-    SuccessRateAlert(
-      notificationGroup = DefaultNotificationGroup,
-      warnPredicate = TriggerIfBelow(99.9, 20, 30),
-      criticalPredicate = TriggerIfBelow(99.9, 30, 30),
-    ),
-    LatencyAlert(
-      notificationGroup = DefaultNotificationGroup,
-      percentile = P99,
-      warnPredicate = TriggerIfLatencyAbove(2300.millis, 15, 30),
-      criticalPredicate = TriggerIfLatencyAbove(2800.millis, 15, 30)
-    ),
-    ThroughputAlert(
-      notificationGroup = DefaultNotificationGroup,
-      warnPredicate = TriggerIfAbove(70000),
-      criticalPredicate = TriggerIfAbove(80000)
-    ),
-    EmptyResponseRateAlert(
-      notificationGroup = DefaultNotificationGroup,
-      warnPredicate = TriggerIfAbove(2),
-      criticalPredicate = TriggerIfAbove(3)
-    )
-  )
-
-  override val debugAccessPolicies: Set[AccessPolicy] = DefaultHomeMixerAccessPolicy
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouPushToHomeMixerPipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouPushToHomeMixerPipelineConfig.scala
deleted file mode 100644
index ac529f582..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouPushToHomeMixerPipelineConfig.scala
+++ /dev/null
@@ -1,74 +0,0 @@
-package com.twitter.home_mixer.product.for_you
-
-import com.twitter.home_mixer.product.for_you.model.ForYouQuery
-import com.twitter.home_mixer.product.for_you.param.ForYouParam
-import com.twitter.product_mixer.component_library.premarshaller.urt.UrtDomainMarshaller
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.AddEntriesInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ClearCacheInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.OrderedBottomCursorBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.OrderedTopCursorBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ParamGatedIncludeInstruction
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.StaticTimelineScribeConfigBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.UrtMetadataBuilder
-import com.twitter.product_mixer.component_library.selector.InsertAppendResults
-import com.twitter.product_mixer.core.functional_component.marshaller.TransportMarshaller
-import com.twitter.product_mixer.core.functional_component.marshaller.response.urt.UrtTransportMarshaller
-import com.twitter.product_mixer.core.functional_component.premarshaller.DomainMarshaller
-import com.twitter.product_mixer.core.functional_component.selector.Selector
-import com.twitter.product_mixer.core.model.common.UniversalNoun
-import com.twitter.product_mixer.core.model.common.identifier.MixerPipelineIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.urt.Timeline
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineScribeConfig
-import com.twitter.product_mixer.core.model.marshalling.response.urt.item.tweet.TweetItem
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.product_mixer.core.pipeline.mixer.MixerPipelineConfig
-import com.twitter.timelines.render.{thriftscala => urt}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ForYouPushToHomeMixerPipelineConfig @Inject() (
-  forYouPushToHomeTweetCandidatePipelineConfig: ForYouPushToHomeTweetCandidatePipelineConfig,
-  urtTransportMarshaller: UrtTransportMarshaller)
-    extends MixerPipelineConfig[ForYouQuery, Timeline, urt.TimelineResponse] {
-
-  override val identifier: MixerPipelineIdentifier = MixerPipelineIdentifier("ForYouPushToHome")
-
-  override val candidatePipelines: Seq[CandidatePipelineConfig[ForYouQuery, _, _, _]] =
-    Seq(forYouPushToHomeTweetCandidatePipelineConfig)
-
-  override val resultSelectors: Seq[Selector[ForYouQuery]] =
-    Seq(InsertAppendResults(forYouPushToHomeTweetCandidatePipelineConfig.identifier))
-
-  override val domainMarshaller: DomainMarshaller[ForYouQuery, Timeline] = {
-    val instructionBuilders = Seq(
-      ClearCacheInstructionBuilder(
-        ParamGatedIncludeInstruction(ForYouParam.EnableClearCacheOnPushToHome)),
-      AddEntriesInstructionBuilder())
-
-    val idSelector: PartialFunction[UniversalNoun[_], Long] = { case item: TweetItem => item.id }
-    val topCursorBuilder = OrderedTopCursorBuilder(idSelector)
-    val bottomCursorBuilder = OrderedBottomCursorBuilder(idSelector)
-
-    val metadataBuilder = UrtMetadataBuilder(
-      title = None,
-      scribeConfigBuilder = Some(
-        StaticTimelineScribeConfigBuilder(
-          TimelineScribeConfig(
-            page = Some("for_you_push_to_home"),
-            section = None,
-            entityToken = None)
-        )
-      )
-    )
-
-    UrtDomainMarshaller(
-      instructionBuilders = instructionBuilders,
-      metadataBuilder = Some(metadataBuilder),
-      cursorBuilders = Seq(topCursorBuilder, bottomCursorBuilder)
-    )
-  }
-
-  override val transportMarshaller: TransportMarshaller[Timeline, urt.TimelineResponse] =
-    urtTransportMarshaller
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouPushToHomeTweetCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouPushToHomeTweetCandidatePipelineConfig.scala
deleted file mode 100644
index 49df4fdf8..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouPushToHomeTweetCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,81 +0,0 @@
-package com.twitter.home_mixer.product.for_you
-
-import com.twitter.home_mixer.functional_component.decorator.builder.HomeClientEventInfoBuilder
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.home_mixer.product.for_you.functional_component.gate.PushToHomeRequestGate
-import com.twitter.home_mixer.product.for_you.model.ForYouQuery
-import com.twitter.product_mixer.component_library.decorator.urt.UrtItemCandidateDecorator
-import com.twitter.product_mixer.component_library.decorator.urt.builder.item.tweet.TweetCandidateUrtItemBuilder
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.candidate_source.CandidateSource
-import com.twitter.product_mixer.core.functional_component.candidate_source.PassthroughCandidateSource
-import com.twitter.product_mixer.core.functional_component.decorator.CandidateDecorator
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.CandidateSourceIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ForYouPushToHomeTweetCandidatePipelineConfig @Inject() ()
-    extends CandidatePipelineConfig[
-      ForYouQuery,
-      ForYouQuery,
-      TweetCandidate,
-      TweetCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("ForYouPushToHomeTweet")
-
-  override val gates: Seq[Gate[ForYouQuery]] = Seq(PushToHomeRequestGate)
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[
-    ForYouQuery,
-    ForYouQuery
-  ] = identity
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[TweetCandidate]
-  ] = Seq(new CandidateFeatureTransformer[TweetCandidate] {
-    override def features: Set[Feature[_, _]] = Set(SuggestTypeFeature)
-
-    override val identifier: TransformerIdentifier =
-      TransformerIdentifier("ForYouPushToHomeTweet")
-
-    override def transform(input: TweetCandidate): FeatureMap =
-      FeatureMapBuilder().add(SuggestTypeFeature, Some(st.SuggestType.Magicrec)).build()
-  })
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    TweetCandidate,
-    TweetCandidate
-  ] = identity
-
-  override val candidateSource: CandidateSource[
-    ForYouQuery,
-    TweetCandidate
-  ] = PassthroughCandidateSource(
-    CandidateSourceIdentifier("PushToHomeTweet"),
-    { query => query.pushToHomeTweetId.toSeq.map(TweetCandidate(_)) }
-  )
-
-  override val decorator: Option[
-    CandidateDecorator[ForYouQuery, TweetCandidate]
-  ] = {
-    val tweetItemBuilder = TweetCandidateUrtItemBuilder(
-      clientEventInfoBuilder = HomeClientEventInfoBuilder()
-    )
-    Some(UrtItemCandidateDecorator(tweetItemBuilder))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouScoredTweetsCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouScoredTweetsCandidatePipelineConfig.scala
deleted file mode 100644
index d7716e190..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouScoredTweetsCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,155 +0,0 @@
-package com.twitter.home_mixer.product.for_you
-
-import com.twitter.home_mixer.functional_component.decorator.builder.HomeClientEventInfoBuilder
-import com.twitter.home_mixer.functional_component.decorator.builder.HomeConversationModuleMetadataBuilder
-import com.twitter.home_mixer.functional_component.decorator.builder.HomeTimelinesScoreInfoBuilder
-import com.twitter.home_mixer.functional_component.decorator.urt.builder.HomeFeedbackActionInfoBuilder
-import com.twitter.home_mixer.functional_component.decorator.urt.builder.HomeTweetSocialContextBuilder
-import com.twitter.home_mixer.functional_component.feature_hydrator.InNetworkFeatureHydrator
-import com.twitter.home_mixer.functional_component.feature_hydrator.NamesFeatureHydrator
-import com.twitter.home_mixer.functional_component.feature_hydrator.TweetypieFeatureHydrator
-import com.twitter.home_mixer.functional_component.filter.InvalidConversationModuleFilter
-import com.twitter.home_mixer.functional_component.filter.InvalidSubscriptionTweetFilter
-import com.twitter.home_mixer.functional_component.gate.SupportedLanguagesGate
-import com.twitter.home_mixer.model.HomeFeatures.ConversationModuleFocalTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsHydratedFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsNsfwFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedTweetDroppedFeature
-import com.twitter.home_mixer.product.for_you.candidate_source.ScoredTweetWithConversationMetadata
-import com.twitter.home_mixer.product.for_you.candidate_source.ScoredTweetsProductCandidateSource
-import com.twitter.home_mixer.product.for_you.feature_hydrator.FocalTweetFeatureHydrator
-import com.twitter.home_mixer.product.for_you.filter.SocialContextFilter
-import com.twitter.home_mixer.product.for_you.model.ForYouQuery
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.EnableScoredTweetsCandidatePipelineParam
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.component_library.decorator.urt.UrtItemCandidateDecorator
-import com.twitter.product_mixer.component_library.decorator.urt.UrtMultipleModulesDecorator
-import com.twitter.product_mixer.component_library.decorator.urt.builder.item.tweet.TweetCandidateUrtItemBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.timeline_module.ManualModuleId
-import com.twitter.product_mixer.component_library.decorator.urt.builder.timeline_module.StaticModuleDisplayTypeBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.timeline_module.TimelineModuleBuilder
-import com.twitter.product_mixer.component_library.filter.FeatureFilter
-import com.twitter.product_mixer.component_library.filter.PredicateFeatureFilter
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.CandidateSource
-import com.twitter.product_mixer.core.functional_component.decorator.CandidateDecorator
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BaseCandidateFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.urt.EntryNamespace
-import com.twitter.product_mixer.core.model.marshalling.response.urt.timeline_module.VerticalConversation
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.timelines.configapi.decider.DeciderParam
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ForYouScoredTweetsCandidatePipelineConfig @Inject() (
-  scoredTweetsProductCandidateSource: ScoredTweetsProductCandidateSource,
-  focalTweetFeatureHydrator: FocalTweetFeatureHydrator,
-  namesFeatureHydrator: NamesFeatureHydrator,
-  tweetypieFeatureHydrator: TweetypieFeatureHydrator,
-  invalidSubscriptionTweetFilter: InvalidSubscriptionTweetFilter,
-  homeFeedbackActionInfoBuilder: HomeFeedbackActionInfoBuilder,
-  homeTweetSocialContextBuilder: HomeTweetSocialContextBuilder)
-    extends CandidatePipelineConfig[
-      ForYouQuery,
-      ForYouQuery,
-      ScoredTweetWithConversationMetadata,
-      TweetCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("ForYouScoredTweets")
-
-  private val TweetypieHydratedFilterId = "TweetypieHydrated"
-  private val QuotedTweetDroppedFilterId = "QuotedTweetDropped"
-  private val OutOfNetworkNSFWFilterId = "OutOfNetworkNSFW"
-  private val ConversationModuleNamespace = EntryNamespace("home-conversation")
-
-  override val gates: Seq[Gate[ForYouQuery]] = Seq(SupportedLanguagesGate)
-
-  override val candidateSource: CandidateSource[ForYouQuery, ScoredTweetWithConversationMetadata] =
-    scoredTweetsProductCandidateSource
-
-  override val enabledDeciderParam: Option[DeciderParam[Boolean]] =
-    Some(EnableScoredTweetsCandidatePipelineParam)
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[ForYouQuery, ForYouQuery] =
-    identity
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[ScoredTweetWithConversationMetadata]
-  ] = Seq(ForYouScoredTweetsResponseFeatureTransformer)
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    ScoredTweetWithConversationMetadata,
-    TweetCandidate
-  ] = { sourceResults => TweetCandidate(sourceResults.tweetId) }
-
-  override val preFilterFeatureHydrationPhase1: Seq[
-    BaseCandidateFeatureHydrator[ForYouQuery, TweetCandidate, _]
-  ] = Seq(InNetworkFeatureHydrator, namesFeatureHydrator, tweetypieFeatureHydrator)
-
-  override val filters: Seq[Filter[ForYouQuery, TweetCandidate]] = Seq(
-    FeatureFilter.fromFeature(FilterIdentifier(TweetypieHydratedFilterId), IsHydratedFeature),
-    PredicateFeatureFilter.fromPredicate(
-      FilterIdentifier(QuotedTweetDroppedFilterId),
-      shouldKeepCandidate = { features => !features.getOrElse(QuotedTweetDroppedFeature, false) }
-    ),
-    PredicateFeatureFilter.fromPredicate(
-      FilterIdentifier(OutOfNetworkNSFWFilterId),
-      shouldKeepCandidate = { features =>
-        features.getOrElse(InNetworkFeature, false) ||
-        !features.getOrElse(IsNsfwFeature, false)
-      }
-    ),
-    SocialContextFilter,
-    invalidSubscriptionTweetFilter,
-    InvalidConversationModuleFilter
-  )
-
-  override val postFilterFeatureHydration: Seq[
-    BaseCandidateFeatureHydrator[ForYouQuery, TweetCandidate, _]
-  ] = Seq(focalTweetFeatureHydrator)
-
-  override val decorator: Option[CandidateDecorator[ForYouQuery, TweetCandidate]] = {
-    val clientEventInfoBuilder = HomeClientEventInfoBuilder()
-
-    val tweetItemBuilder = TweetCandidateUrtItemBuilder(
-      clientEventInfoBuilder = clientEventInfoBuilder,
-      socialContextBuilder = Some(homeTweetSocialContextBuilder),
-      timelinesScoreInfoBuilder = Some(HomeTimelinesScoreInfoBuilder),
-      feedbackActionInfoBuilder = Some(homeFeedbackActionInfoBuilder)
-    )
-
-    val tweetDecorator = UrtItemCandidateDecorator(tweetItemBuilder)
-
-    val moduleBuilder = TimelineModuleBuilder(
-      entryNamespace = ConversationModuleNamespace,
-      clientEventInfoBuilder = clientEventInfoBuilder,
-      moduleIdGeneration = ManualModuleId(0L),
-      displayTypeBuilder = StaticModuleDisplayTypeBuilder(VerticalConversation),
-      metadataBuilder = Some(HomeConversationModuleMetadataBuilder())
-    )
-
-    Some(
-      UrtMultipleModulesDecorator(
-        urtItemCandidateDecorator = tweetDecorator,
-        moduleBuilder = moduleBuilder,
-        groupByKey = (_, _, candidateFeatures) =>
-          candidateFeatures.getOrElse(ConversationModuleFocalTweetIdFeature, None)
-      ))
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(),
-    HomeMixerAlertConfig.BusinessHours.defaultEmptyResponseRateAlert(10, 20)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouScoredTweetsMixerPipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouScoredTweetsMixerPipelineConfig.scala
deleted file mode 100644
index 2137c5267..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouScoredTweetsMixerPipelineConfig.scala
+++ /dev/null
@@ -1,376 +0,0 @@
-package com.twitter.home_mixer.product.for_you
-
-import com.twitter.clientapp.{thriftscala => ca}
-import com.twitter.goldfinch.api.AdsInjectionSurfaceAreas
-import com.twitter.home_mixer.candidate_pipeline.EditedTweetsCandidatePipelineConfig
-import com.twitter.home_mixer.candidate_pipeline.NewTweetsPillCandidatePipelineConfig
-import com.twitter.home_mixer.functional_component.decorator.urt.builder.AddEntriesWithReplaceAndShowAlertAndCoverInstructionBuilder
-import com.twitter.home_mixer.functional_component.feature_hydrator._
-import com.twitter.home_mixer.functional_component.selector.DebunchCandidates
-import com.twitter.home_mixer.functional_component.selector.UpdateConversationModuleId
-import com.twitter.home_mixer.functional_component.selector.UpdateHomeClientEventDetails
-import com.twitter.home_mixer.functional_component.selector.UpdateNewTweetsPillDecoration
-import com.twitter.home_mixer.functional_component.side_effect._
-import com.twitter.home_mixer.model.ClearCacheIncludeInstruction
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.param.HomeGlobalParams.MaxNumberReplaceInstructionsParam
-import com.twitter.home_mixer.param.HomeMixerFlagName.ScribeClientEventsFlag
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.home_mixer.product.for_you.feature_hydrator.TimelineServiceTweetsQueryFeatureHydrator
-import com.twitter.home_mixer.product.for_you.model.ForYouQuery
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.ClearCacheOnPtr
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.EnableFlipInjectionModuleCandidatePipelineParam
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.FlipInlineInjectionModulePosition
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.ServerMaxResultsParam
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.TweetPreviewsPositionParam
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.WhoToFollowPositionParam
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.WhoToSubscribePositionParam
-import com.twitter.home_mixer.product.for_you.side_effect.ServedCandidateFeatureKeysKafkaSideEffectBuilder
-import com.twitter.home_mixer.product.for_you.side_effect.ServedCandidateKeysKafkaSideEffectBuilder
-import com.twitter.home_mixer.product.for_you.side_effect.ServedStatsSideEffect
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.inject.annotations.Flag
-import com.twitter.logpipeline.client.common.EventPublisher
-import com.twitter.product_mixer.component_library.feature_hydrator.query.async.AsyncQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.PreviewCreatorsQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.SGSFollowedUsersQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.component_library.pipeline.candidate.flexible_injection_pipeline.FlipPromptCandidatePipelineConfigBuilder
-import com.twitter.product_mixer.component_library.pipeline.candidate.who_to_follow_module.WhoToFollowCandidatePipelineConfig
-import com.twitter.product_mixer.component_library.pipeline.candidate.who_to_subscribe_module.WhoToSubscribeCandidatePipelineConfig
-import com.twitter.product_mixer.component_library.premarshaller.urt.UrtDomainMarshaller
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ClearCacheInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.OrderedBottomCursorBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.OrderedTopCursorBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ReplaceAllEntries
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ReplaceEntryInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ShowAlertInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ShowCoverInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.StaticTimelineScribeConfigBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.UrtMetadataBuilder
-import com.twitter.product_mixer.component_library.selector.DropMaxCandidates
-import com.twitter.product_mixer.component_library.selector.DropMaxModuleItemCandidates
-import com.twitter.product_mixer.component_library.selector.DropModuleTooFewModuleItemResults
-import com.twitter.product_mixer.component_library.selector.InsertAppendResults
-import com.twitter.product_mixer.component_library.selector.InsertFixedPositionResults
-import com.twitter.product_mixer.component_library.selector.SelectConditionally
-import com.twitter.product_mixer.component_library.selector.UpdateSortCandidates
-import com.twitter.product_mixer.component_library.selector.UpdateSortModuleItemCandidates
-import com.twitter.product_mixer.component_library.selector.ads.AdsInjector
-import com.twitter.product_mixer.component_library.selector.ads.InsertAdResults
-import com.twitter.product_mixer.core.functional_component.common.SpecificPipeline
-import com.twitter.product_mixer.core.functional_component.common.SpecificPipelines
-import com.twitter.product_mixer.core.functional_component.configapi.StaticParam
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.marshaller.TransportMarshaller
-import com.twitter.product_mixer.core.functional_component.marshaller.response.urt.UrtTransportMarshaller
-import com.twitter.product_mixer.core.functional_component.premarshaller.DomainMarshaller
-import com.twitter.product_mixer.core.functional_component.selector.Selector
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.UniversalNoun
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.MixerPipelineIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.ItemCandidateWithDetails
-import com.twitter.product_mixer.core.model.common.presentation.ModuleCandidateWithDetails
-import com.twitter.product_mixer.core.model.marshalling.response.urt.Timeline
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineModule
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineScribeConfig
-import com.twitter.product_mixer.core.model.marshalling.response.urt.item.tweet.TweetItem
-import com.twitter.product_mixer.core.pipeline.FailOpenPolicy
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.product_mixer.core.pipeline.candidate.DependentCandidatePipelineConfig
-import com.twitter.product_mixer.core.pipeline.mixer.MixerPipelineConfig
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import com.twitter.timelines.render.{thriftscala => urt}
-import javax.inject.Inject
-import javax.inject.Provider
-import javax.inject.Singleton
-
-@Singleton
-class ForYouScoredTweetsMixerPipelineConfig @Inject() (
-  forYouAdsDependentCandidatePipelineBuilder: ForYouAdsDependentCandidatePipelineBuilder,
-  forYouConversationServiceCandidatePipelineConfig: ForYouConversationServiceCandidatePipelineConfig,
-  forYouPushToHomeTweetCandidatePipelineConfig: ForYouPushToHomeTweetCandidatePipelineConfig,
-  forYouScoredTweetsCandidatePipelineConfig: ForYouScoredTweetsCandidatePipelineConfig,
-  forYouWhoToFollowCandidatePipelineConfigBuilder: ForYouWhoToFollowCandidatePipelineConfigBuilder,
-  forYouWhoToSubscribeCandidatePipelineConfigBuilder: ForYouWhoToSubscribeCandidatePipelineConfigBuilder,
-  flipPromptCandidatePipelineConfigBuilder: FlipPromptCandidatePipelineConfigBuilder,
-  editedTweetsCandidatePipelineConfig: EditedTweetsCandidatePipelineConfig,
-  newTweetsPillCandidatePipelineConfig: NewTweetsPillCandidatePipelineConfig[ForYouQuery],
-  forYouTweetPreviewsCandidatePipelineConfig: ForYouTweetPreviewsCandidatePipelineConfig,
-  dismissInfoQueryFeatureHydrator: DismissInfoQueryFeatureHydrator,
-  gizmoduckUserQueryFeatureHydrator: GizmoduckUserQueryFeatureHydrator,
-  persistenceStoreQueryFeatureHydrator: PersistenceStoreQueryFeatureHydrator,
-  requestQueryFeatureHydrator: RequestQueryFeatureHydrator[ForYouQuery],
-  timelineServiceTweetsQueryFeatureHydrator: TimelineServiceTweetsQueryFeatureHydrator,
-  previewCreatorsQueryFeatureHydrator: PreviewCreatorsQueryFeatureHydrator,
-  sgsFollowedUsersQueryFeatureHydrator: SGSFollowedUsersQueryFeatureHydrator,
-  adsInjector: AdsInjector,
-  servedCandidateKeysKafkaSideEffectBuilder: ServedCandidateKeysKafkaSideEffectBuilder,
-  servedCandidateFeatureKeysKafkaSideEffectBuilder: ServedCandidateFeatureKeysKafkaSideEffectBuilder,
-  updateTimelinesPersistenceStoreSideEffect: UpdateTimelinesPersistenceStoreSideEffect,
-  truncateTimelinesPersistenceStoreSideEffect: TruncateTimelinesPersistenceStoreSideEffect,
-  homeScribeServedCandidatesSideEffect: HomeScribeServedCandidatesSideEffect,
-  servedStatsSideEffect: ServedStatsSideEffect,
-  clientEventsScribeEventPublisher: EventPublisher[ca.LogEvent],
-  externalStrings: HomeMixerExternalStrings,
-  @ProductScoped stringCenterProvider: Provider[StringCenter],
-  urtTransportMarshaller: UrtTransportMarshaller,
-  @Flag(ScribeClientEventsFlag) enableScribeClientEvents: Boolean)
-    extends MixerPipelineConfig[ForYouQuery, Timeline, urt.TimelineResponse] {
-
-  override val identifier: MixerPipelineIdentifier = MixerPipelineIdentifier("ForYouScoredTweets")
-
-  private val MaxConsecutiveOutOfNetworkCandidates = 2
-
-  private val PushToHomeTweetPosition = 0
-
-  private val dependentCandidatesStep = MixerPipelineConfig.dependentCandidatePipelinesStep
-
-  override val fetchQueryFeatures: Seq[QueryFeatureHydrator[ForYouQuery]] = Seq(
-    requestQueryFeatureHydrator,
-    persistenceStoreQueryFeatureHydrator,
-    timelineServiceTweetsQueryFeatureHydrator,
-    previewCreatorsQueryFeatureHydrator,
-    sgsFollowedUsersQueryFeatureHydrator,
-    AsyncQueryFeatureHydrator(dependentCandidatesStep, dismissInfoQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(dependentCandidatesStep, gizmoduckUserQueryFeatureHydrator),
-  )
-
-  private val scoredTweetsCandidatePipelineScope =
-    SpecificPipeline(forYouScoredTweetsCandidatePipelineConfig.identifier)
-
-  private val forYouAdsCandidatePipelineConfig = forYouAdsDependentCandidatePipelineBuilder
-    .build(scoredTweetsCandidatePipelineScope)
-
-  private val forYouWhoToFollowCandidatePipelineConfig =
-    forYouWhoToFollowCandidatePipelineConfigBuilder.build()
-
-  private val forYouWhoToSubscribeCandidatePipelineConfig =
-    forYouWhoToSubscribeCandidatePipelineConfigBuilder.build()
-
-  private val flipPromptCandidatePipelineConfig =
-    flipPromptCandidatePipelineConfigBuilder.build[ForYouQuery](
-      supportedClientParam = Some(EnableFlipInjectionModuleCandidatePipelineParam)
-    )
-
-  override val candidatePipelines: Seq[CandidatePipelineConfig[ForYouQuery, _, _, _]] = Seq(
-    forYouScoredTweetsCandidatePipelineConfig,
-    forYouPushToHomeTweetCandidatePipelineConfig,
-    forYouWhoToFollowCandidatePipelineConfig,
-    forYouWhoToSubscribeCandidatePipelineConfig,
-    forYouTweetPreviewsCandidatePipelineConfig,
-    flipPromptCandidatePipelineConfig
-  )
-
-  override val dependentCandidatePipelines: Seq[
-    DependentCandidatePipelineConfig[ForYouQuery, _, _, _]
-  ] = Seq(
-    forYouAdsCandidatePipelineConfig,
-    forYouConversationServiceCandidatePipelineConfig,
-    editedTweetsCandidatePipelineConfig,
-    newTweetsPillCandidatePipelineConfig
-  )
-
-  override val failOpenPolicies: Map[CandidatePipelineIdentifier, FailOpenPolicy] = Map(
-    forYouScoredTweetsCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    forYouAdsCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    forYouWhoToFollowCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    forYouWhoToSubscribeCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    forYouTweetPreviewsCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    flipPromptCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    editedTweetsCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    newTweetsPillCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-  )
-
-  override val resultSelectors: Seq[Selector[ForYouQuery]] = Seq(
-    UpdateSortCandidates(
-      ordering = CandidatesUtil.reverseChronTweetsOrdering,
-      candidatePipeline = forYouConversationServiceCandidatePipelineConfig.identifier
-    ),
-    UpdateSortCandidates(
-      ordering = CandidatesUtil.scoreOrdering,
-      candidatePipeline = forYouScoredTweetsCandidatePipelineConfig.identifier
-    ),
-    UpdateSortModuleItemCandidates(
-      candidatePipeline = forYouScoredTweetsCandidatePipelineConfig.identifier,
-      ordering = CandidatesUtil.conversationModuleTweetsOrdering
-    ),
-    DebunchCandidates(
-      pipelineScope = SpecificPipeline(forYouScoredTweetsCandidatePipelineConfig.identifier),
-      mustDebunch = {
-        case item: ItemCandidateWithDetails =>
-          !item.features.getOrElse(InNetworkFeature, false)
-        case module: ModuleCandidateWithDetails =>
-          !module.candidates.last.features.getOrElse(InNetworkFeature, false)
-      },
-      maxBunchSize = MaxConsecutiveOutOfNetworkCandidates
-    ),
-    UpdateConversationModuleId(
-      pipelineScope = SpecificPipeline(forYouScoredTweetsCandidatePipelineConfig.identifier)
-    ),
-    DropMaxCandidates(
-      candidatePipeline = forYouConversationServiceCandidatePipelineConfig.identifier,
-      maxSelectionsParam = ServerMaxResultsParam
-    ),
-    DropMaxCandidates(
-      candidatePipeline = forYouScoredTweetsCandidatePipelineConfig.identifier,
-      maxSelectionsParam = ServerMaxResultsParam
-    ),
-    DropMaxCandidates(
-      candidatePipeline = editedTweetsCandidatePipelineConfig.identifier,
-      maxSelectionsParam = MaxNumberReplaceInstructionsParam
-    ),
-    DropMaxModuleItemCandidates(
-      candidatePipeline = forYouWhoToFollowCandidatePipelineConfig.identifier,
-      maxModuleItemsParam = StaticParam(WhoToFollowCandidatePipelineConfig.MaxCandidatesSize)
-    ),
-    DropMaxModuleItemCandidates(
-      candidatePipeline = forYouWhoToSubscribeCandidatePipelineConfig.identifier,
-      maxModuleItemsParam = StaticParam(WhoToSubscribeCandidatePipelineConfig.MaxCandidatesSize)
-    ),
-    // The Conversation Service pipeline will only run if the Scored Tweets pipeline returned nothing
-    InsertAppendResults(
-      candidatePipeline = forYouConversationServiceCandidatePipelineConfig.identifier
-    ),
-    InsertAppendResults(
-      candidatePipeline = forYouScoredTweetsCandidatePipelineConfig.identifier
-    ),
-    InsertFixedPositionResults(
-      candidatePipeline = forYouTweetPreviewsCandidatePipelineConfig.identifier,
-      positionParam = TweetPreviewsPositionParam
-    ),
-    InsertFixedPositionResults(
-      candidatePipeline = forYouWhoToFollowCandidatePipelineConfig.identifier,
-      positionParam = WhoToFollowPositionParam
-    ),
-    InsertFixedPositionResults(
-      candidatePipeline = forYouWhoToSubscribeCandidatePipelineConfig.identifier,
-      positionParam = WhoToSubscribePositionParam
-    ),
-    InsertFixedPositionResults(
-      candidatePipeline = flipPromptCandidatePipelineConfig.identifier,
-      positionParam = FlipInlineInjectionModulePosition
-    ),
-    // Insert Push To Home Tweet at top of Timeline
-    InsertFixedPositionResults(
-      candidatePipeline = forYouPushToHomeTweetCandidatePipelineConfig.identifier,
-      positionParam = StaticParam(PushToHomeTweetPosition)
-    ),
-    InsertAdResults(
-      surfaceAreaName = AdsInjectionSurfaceAreas.HomeTimeline,
-      adsInjector = adsInjector.forSurfaceArea(AdsInjectionSurfaceAreas.HomeTimeline),
-      adsCandidatePipeline = forYouAdsCandidatePipelineConfig.identifier
-    ),
-    // This selector must come after the tweets are inserted into the results
-    DropModuleTooFewModuleItemResults(
-      candidatePipeline = forYouWhoToFollowCandidatePipelineConfig.identifier,
-      minModuleItemsParam = StaticParam(WhoToFollowCandidatePipelineConfig.MinCandidatesSize)
-    ),
-    DropModuleTooFewModuleItemResults(
-      candidatePipeline = forYouWhoToSubscribeCandidatePipelineConfig.identifier,
-      minModuleItemsParam = StaticParam(WhoToSubscribeCandidatePipelineConfig.MinCandidatesSize)
-    ),
-    UpdateNewTweetsPillDecoration(
-      pipelineScope = SpecificPipelines(
-        forYouConversationServiceCandidatePipelineConfig.identifier,
-        forYouScoredTweetsCandidatePipelineConfig.identifier,
-        newTweetsPillCandidatePipelineConfig.identifier
-      ),
-      stringCenter = stringCenterProvider.get(),
-      seeNewTweetsString = externalStrings.seeNewTweetsString,
-      tweetedString = externalStrings.tweetedString
-    ),
-    InsertAppendResults(candidatePipeline = editedTweetsCandidatePipelineConfig.identifier),
-    SelectConditionally(
-      selector =
-        InsertAppendResults(candidatePipeline = newTweetsPillCandidatePipelineConfig.identifier),
-      includeSelector = (_, _, results) => CandidatesUtil.containsType[TweetCandidate](results)
-    ),
-    UpdateHomeClientEventDetails(
-      candidatePipelines = Set(
-        forYouConversationServiceCandidatePipelineConfig.identifier,
-        forYouScoredTweetsCandidatePipelineConfig.identifier
-      )
-    ),
-  )
-
-  private val servedCandidateKeysKafkaSideEffect =
-    servedCandidateKeysKafkaSideEffectBuilder.build(
-      Set(forYouScoredTweetsCandidatePipelineConfig.identifier))
-
-  private val servedCandidateFeatureKeysKafkaSideEffect =
-    servedCandidateFeatureKeysKafkaSideEffectBuilder.build(
-      Set(forYouScoredTweetsCandidatePipelineConfig.identifier))
-
-  private val homeScribeClientEventSideEffect = HomeScribeClientEventSideEffect(
-    enableScribeClientEvents = enableScribeClientEvents,
-    logPipelinePublisher = clientEventsScribeEventPublisher,
-    injectedTweetsCandidatePipelineIdentifiers = Seq(
-      forYouScoredTweetsCandidatePipelineConfig.identifier,
-      forYouConversationServiceCandidatePipelineConfig.identifier
-    ),
-    adsCandidatePipelineIdentifier = Some(forYouAdsCandidatePipelineConfig.identifier),
-    whoToFollowCandidatePipelineIdentifier = Some(
-      forYouWhoToFollowCandidatePipelineConfig.identifier
-    ),
-    whoToSubscribeCandidatePipelineIdentifier =
-      Some(forYouWhoToSubscribeCandidatePipelineConfig.identifier)
-  )
-
-  override val resultSideEffects: Seq[PipelineResultSideEffect[ForYouQuery, Timeline]] = Seq(
-    servedCandidateKeysKafkaSideEffect,
-    servedCandidateFeatureKeysKafkaSideEffect,
-    updateTimelinesPersistenceStoreSideEffect,
-    truncateTimelinesPersistenceStoreSideEffect,
-    homeScribeClientEventSideEffect,
-    homeScribeServedCandidatesSideEffect,
-    servedStatsSideEffect
-  )
-
-  override val domainMarshaller: DomainMarshaller[ForYouQuery, Timeline] = {
-    val instructionBuilders = Seq(
-      ClearCacheInstructionBuilder(
-        ClearCacheIncludeInstruction(
-          ClearCacheOnPtr.EnableParam,
-          ClearCacheOnPtr.MinEntriesParam,
-        )
-      ),
-      ReplaceEntryInstructionBuilder(ReplaceAllEntries),
-      // excludes alert, cover, and replace candidates
-      AddEntriesWithReplaceAndShowAlertAndCoverInstructionBuilder(),
-      ShowAlertInstructionBuilder(),
-      ShowCoverInstructionBuilder(),
-    )
-
-    val idSelector: PartialFunction[UniversalNoun[_], Long] = {
-      // exclude ads while determining tweet cursor values
-      case item: TweetItem if item.promotedMetadata.isEmpty => item.id
-      case module: TimelineModule
-          if module.items.headOption.exists(_.item.isInstanceOf[TweetItem]) =>
-        module.items.last.item match { case item: TweetItem => item.id }
-    }
-    val topCursorBuilder = OrderedTopCursorBuilder(idSelector)
-    val bottomCursorBuilder = OrderedBottomCursorBuilder(idSelector)
-
-    val metadataBuilder = UrtMetadataBuilder(
-      title = None,
-      scribeConfigBuilder = Some(
-        StaticTimelineScribeConfigBuilder(
-          TimelineScribeConfig(
-            page = Some("for_you_scored_tweets"),
-            section = None,
-            entityToken = None)))
-    )
-
-    UrtDomainMarshaller(
-      instructionBuilders = instructionBuilders,
-      metadataBuilder = Some(metadataBuilder),
-      cursorBuilders = Seq(topCursorBuilder, bottomCursorBuilder)
-    )
-  }
-
-  override val transportMarshaller: TransportMarshaller[Timeline, urt.TimelineResponse] =
-    urtTransportMarshaller
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouScoredTweetsResponseFeatureTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouScoredTweetsResponseFeatureTransformer.scala
deleted file mode 100644
index eafc09352..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouScoredTweetsResponseFeatureTransformer.scala
+++ /dev/null
@@ -1,103 +0,0 @@
-package com.twitter.home_mixer.product.for_you
-
-import com.twitter.home_mixer.model.HomeFeatures._
-import com.twitter.home_mixer.product.for_you.candidate_source.ScoredTweetWithConversationMetadata
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.BasicTopicContextFunctionalityType
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RecWithEducationTopicContextFunctionalityType
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RecommendationTopicContextFunctionalityType
-import com.twitter.timelines.render.{thriftscala => tl}
-import com.twitter.timelineservice.suggests.{thriftscala => tls}
-
-object ForYouScoredTweetsResponseFeatureTransformer
-    extends CandidateFeatureTransformer[ScoredTweetWithConversationMetadata] {
-
-  override val identifier: TransformerIdentifier =
-    TransformerIdentifier("ForYouScoredTweetsResponse")
-
-  override val features: Set[Feature[_, _]] = Set(
-    AncestorsFeature,
-    AuthorIdFeature,
-    AuthorIsBlueVerifiedFeature,
-    AuthorIsCreatorFeature,
-    AuthorIsGoldVerifiedFeature,
-    AuthorIsGrayVerifiedFeature,
-    AuthorIsLegacyVerifiedFeature,
-    ConversationModuleFocalTweetIdFeature,
-    ConversationModuleIdFeature,
-    DirectedAtUserIdFeature,
-    ExclusiveConversationAuthorIdFeature,
-    FullScoringSucceededFeature,
-    FavoritedByUserIdsFeature,
-    FollowedByUserIdsFeature,
-    InNetworkFeature,
-    InReplyToTweetIdFeature,
-    InReplyToUserIdFeature,
-    IsAncestorCandidateFeature,
-    IsReadFromCacheFeature,
-    IsRetweetFeature,
-    PerspectiveFilteredLikedByUserIdsFeature,
-    QuotedTweetIdFeature,
-    QuotedUserIdFeature,
-    SGSValidFollowedByUserIdsFeature,
-    SGSValidLikedByUserIdsFeature,
-    ScoreFeature,
-    SourceTweetIdFeature,
-    SourceUserIdFeature,
-    StreamToKafkaFeature,
-    SuggestTypeFeature,
-    TopicContextFunctionalityTypeFeature,
-    TopicIdSocialContextFeature
-  )
-
-  override def transform(input: ScoredTweetWithConversationMetadata): FeatureMap =
-    FeatureMapBuilder()
-      .add(AncestorsFeature, input.ancestors.getOrElse(Seq.empty))
-      .add(AuthorIdFeature, Some(input.authorId))
-      .add(AuthorIsBlueVerifiedFeature, input.authorIsBlueVerified.getOrElse(false))
-      .add(AuthorIsGoldVerifiedFeature, input.authorIsGoldVerified.getOrElse(false))
-      .add(AuthorIsGrayVerifiedFeature, input.authorIsGrayVerified.getOrElse(false))
-      .add(AuthorIsLegacyVerifiedFeature, input.authorIsLegacyVerified.getOrElse(false))
-      .add(AuthorIsCreatorFeature, input.authorIsCreator.getOrElse(false))
-      .add(ConversationModuleIdFeature, input.conversationId)
-      .add(ConversationModuleFocalTweetIdFeature, input.conversationFocalTweetId)
-      .add(DirectedAtUserIdFeature, input.directedAtUserId)
-      .add(ExclusiveConversationAuthorIdFeature, input.exclusiveConversationAuthorId)
-      .add(SGSValidLikedByUserIdsFeature, input.sgsValidLikedByUserIds.getOrElse(Seq.empty))
-      .add(SGSValidFollowedByUserIdsFeature, input.sgsValidFollowedByUserIds.getOrElse(Seq.empty))
-      .add(FavoritedByUserIdsFeature, input.sgsValidLikedByUserIds.getOrElse(Seq.empty))
-      .add(FollowedByUserIdsFeature, input.sgsValidFollowedByUserIds.getOrElse(Seq.empty))
-      .add(FullScoringSucceededFeature, true)
-      .add(InNetworkFeature, input.inNetwork.getOrElse(true))
-      .add(InReplyToTweetIdFeature, input.inReplyToTweetId)
-      .add(InReplyToUserIdFeature, input.inReplyToUserId)
-      .add(IsAncestorCandidateFeature, input.conversationFocalTweetId.exists(_ != input.tweetId))
-      .add(IsReadFromCacheFeature, input.isReadFromCache.getOrElse(false))
-      .add(IsRetweetFeature, input.sourceTweetId.isDefined)
-      .add(
-        PerspectiveFilteredLikedByUserIdsFeature,
-        input.perspectiveFilteredLikedByUserIds.getOrElse(Seq.empty))
-      .add(QuotedTweetIdFeature, input.quotedTweetId)
-      .add(QuotedUserIdFeature, input.quotedUserId)
-      .add(ScoreFeature, input.score)
-      .add(SourceTweetIdFeature, input.sourceTweetId)
-      .add(SourceUserIdFeature, input.sourceUserId)
-      .add(StreamToKafkaFeature, input.streamToKafka.getOrElse(false))
-      .add(SuggestTypeFeature, input.suggestType.orElse(Some(tls.SuggestType.Undefined)))
-      .add(
-        TopicContextFunctionalityTypeFeature,
-        input.topicFunctionalityType.collect {
-          case tl.TopicContextFunctionalityType.Basic => BasicTopicContextFunctionalityType
-          case tl.TopicContextFunctionalityType.Recommendation =>
-            RecommendationTopicContextFunctionalityType
-          case tl.TopicContextFunctionalityType.RecWithEducation =>
-            RecWithEducationTopicContextFunctionalityType
-        }
-      )
-      .add(TopicIdSocialContextFeature, input.topicId)
-      .build()
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouTimelineScorerCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouTimelineScorerCandidatePipelineConfig.scala
deleted file mode 100644
index bb93a4110..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouTimelineScorerCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,241 +0,0 @@
-package com.twitter.home_mixer.product.for_you
-
-import com.twitter.home_mixer.functional_component.decorator.builder.HomeClientEventInfoBuilder
-import com.twitter.home_mixer.functional_component.decorator.builder.HomeConversationModuleMetadataBuilder
-import com.twitter.home_mixer.functional_component.decorator.builder.HomeTimelinesScoreInfoBuilder
-import com.twitter.home_mixer.functional_component.decorator.urt.builder.HomeFeedbackActionInfoBuilder
-import com.twitter.home_mixer.functional_component.decorator.urt.builder.HomeTweetSocialContextBuilder
-import com.twitter.home_mixer.functional_component.feature_hydrator.InNetworkFeatureHydrator
-import com.twitter.home_mixer.functional_component.feature_hydrator.NamesFeatureHydrator
-import com.twitter.home_mixer.functional_component.feature_hydrator.PerspectiveFilteredSocialContextFeatureHydrator
-import com.twitter.home_mixer.functional_component.feature_hydrator.SGSValidSocialContextFeatureHydrator
-import com.twitter.home_mixer.functional_component.feature_hydrator.TweetypieFeatureHydrator
-import com.twitter.home_mixer.functional_component.filter.FeedbackFatigueFilter
-import com.twitter.home_mixer.functional_component.filter.InvalidConversationModuleFilter
-import com.twitter.home_mixer.functional_component.filter.InvalidSubscriptionTweetFilter
-import com.twitter.home_mixer.functional_component.filter.RejectTweetFromViewerFilter
-import com.twitter.home_mixer.functional_component.filter.RetweetDeduplicationFilter
-import com.twitter.home_mixer.functional_component.scorer.FeedbackFatigueScorer
-import com.twitter.home_mixer.functional_component.scorer.OONTweetScalingScorer
-import com.twitter.home_mixer.marshaller.timelines.DeviceContextMarshaller
-import com.twitter.home_mixer.marshaller.timelines.TimelineServiceCursorMarshaller
-import com.twitter.home_mixer.model.HomeFeatures.ConversationModuleFocalTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsHydratedFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsNsfwFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedTweetDroppedFeature
-import com.twitter.home_mixer.model.HomeFeatures.TimelineServiceTweetsFeature
-import com.twitter.home_mixer.model.request.DeviceContext
-import com.twitter.home_mixer.product.for_you.feature_hydrator.FocalTweetFeatureHydrator
-import com.twitter.home_mixer.product.for_you.filter.SocialContextFilter
-import com.twitter.home_mixer.product.for_you.model.ForYouQuery
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.EnableTimelineScorerCandidatePipelineParam
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.component_library.candidate_source.timeline_scorer.ScoredTweetCandidateWithFocalTweet
-import com.twitter.product_mixer.component_library.candidate_source.timeline_scorer.TimelineScorerCandidateSource
-import com.twitter.product_mixer.component_library.decorator.urt.UrtItemCandidateDecorator
-import com.twitter.product_mixer.component_library.decorator.urt.UrtMultipleModulesDecorator
-import com.twitter.product_mixer.component_library.decorator.urt.builder.item.tweet.TweetCandidateUrtItemBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.timeline_module.ManualModuleId
-import com.twitter.product_mixer.component_library.decorator.urt.builder.timeline_module.StaticModuleDisplayTypeBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.timeline_module.TimelineModuleBuilder
-import com.twitter.product_mixer.component_library.filter.FeatureFilter
-import com.twitter.product_mixer.component_library.filter.PredicateFeatureFilter
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.BaseCandidateSource
-import com.twitter.product_mixer.core.functional_component.common.alert.Alert
-import com.twitter.product_mixer.core.functional_component.decorator.CandidateDecorator
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BaseCandidateFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.scorer.Scorer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.urt.EntryNamespace
-import com.twitter.product_mixer.core.model.marshalling.response.urt.timeline_module.VerticalConversation
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.timelines.configapi.FSParam
-import com.twitter.timelines.model.candidate.CandidateTweetSourceId
-import com.twitter.timelines.service.{thriftscala => tst}
-import com.twitter.timelinescorer.{thriftscala => t}
-import com.twitter.timelineservice.{thriftscala => tlst}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Candidate Pipeline Config that fetches tweets from the Timeline Scorer Candidate Source
- */
-@Singleton
-class ForYouTimelineScorerCandidatePipelineConfig @Inject() (
-  timelineScorerCandidateSource: TimelineScorerCandidateSource,
-  deviceContextMarshaller: DeviceContextMarshaller,
-  tweetypieFeatureHydrator: TweetypieFeatureHydrator,
-  sgsValidSocialContextFeatureHydrator: SGSValidSocialContextFeatureHydrator,
-  perspectiveFilteredSocialContextFeatureHydrator: PerspectiveFilteredSocialContextFeatureHydrator,
-  namesFeatureHydrator: NamesFeatureHydrator,
-  focalTweetFeatureHydrator: FocalTweetFeatureHydrator,
-  invalidSubscriptionTweetFilter: InvalidSubscriptionTweetFilter,
-  homeFeedbackActionInfoBuilder: HomeFeedbackActionInfoBuilder,
-  homeTweetSocialContextBuilder: HomeTweetSocialContextBuilder)
-    extends CandidatePipelineConfig[
-      ForYouQuery,
-      t.ScoredTweetsRequest,
-      ScoredTweetCandidateWithFocalTweet,
-      TweetCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("ForYouTimelineScorerTweets")
-
-  private val TweetypieHydratedFilterId = "TweetypieHydrated"
-  private val QuotedTweetDroppedFilterId = "QuotedTweetDropped"
-  private val OutOfNetworkNSFWFilterId = "OutOfNetworkNSFW"
-  private val ConversationModuleNamespace = EntryNamespace("home-conversation")
-
-  override val supportedClientParam: Option[FSParam[Boolean]] =
-    Some(EnableTimelineScorerCandidatePipelineParam)
-
-  override val candidateSource: BaseCandidateSource[
-    t.ScoredTweetsRequest,
-    ScoredTweetCandidateWithFocalTweet
-  ] = timelineScorerCandidateSource
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[
-    ForYouQuery,
-    t.ScoredTweetsRequest
-  ] = { query =>
-    val deviceContext = query.deviceContext.getOrElse(DeviceContext.Empty)
-
-    val scoredTweetsRequestContext = t.v1.ScoredTweetsRequestContext(
-      contextualUserId = query.clientContext.userId,
-      timelineId = query.clientContext.userId.map(tlst.TimelineId(tlst.TimelineType.Home, _, None)),
-      deviceContext = Some(deviceContextMarshaller(deviceContext, query.clientContext)),
-      seenTweetIds = query.seenTweetIds,
-      contextualUserContext = Some(tst.ContextualUserContext(query.clientContext.userRoles)),
-      timelineRequestCursor = query.pipelineCursor.flatMap(TimelineServiceCursorMarshaller(_))
-    )
-
-    val candidateTweetSourceIds = Seq(
-      CandidateTweetSourceId.RecycledTweet,
-      CandidateTweetSourceId.OrganicTweet,
-      CandidateTweetSourceId.AncestorsOnlyOrganicTweet,
-      CandidateTweetSourceId.BackfillOrganicTweet,
-      CandidateTweetSourceId.CroonTweet,
-      CandidateTweetSourceId.RecommendedTweet,
-      CandidateTweetSourceId.FrsTweet,
-      CandidateTweetSourceId.ListTweet,
-      CandidateTweetSourceId.RecommendedTrendTweet,
-      CandidateTweetSourceId.PopularTopicTweet
-    )
-
-    val timelineServiceTweets =
-      query.features.map(_.getOrElse(TimelineServiceTweetsFeature, Seq.empty)).getOrElse(Seq.empty)
-
-    val timelineEntries = timelineServiceTweets.map { id =>
-      tlst.TimelineEntry.Tweet(tlst.Tweet(statusId = id, sortIndex = id))
-    }
-
-    t.ScoredTweetsRequest.V1(
-      t.v1.ScoredTweetsRequest(
-        scoredTweetsRequestContext = Some(scoredTweetsRequestContext),
-        candidateTweetSourceIds =
-          Some(candidateTweetSourceIds.flatMap(CandidateTweetSourceId.toThrift)),
-        maxResultsCount = query.requestedMaxResults,
-        organicTimeline = Some(
-          tlst.Timeline(
-            timelineId = tlst.TimelineId(
-              timelineType = tlst.TimelineType.Home,
-              id = query.getRequiredUserId,
-              canonicalTimelineId = None),
-            entries = timelineEntries,
-            modules = tlst.TimelineModules()
-          ))
-      )
-    )
-  }
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[ScoredTweetCandidateWithFocalTweet]
-  ] = Seq(ForYouTimelineScorerResponseFeatureTransformer)
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    ScoredTweetCandidateWithFocalTweet,
-    TweetCandidate
-  ] = { candidateWithFocalTweetId =>
-    TweetCandidate(id = candidateWithFocalTweetId.candidate.tweetId)
-  }
-
-  override val preFilterFeatureHydrationPhase1: Seq[
-    BaseCandidateFeatureHydrator[ForYouQuery, TweetCandidate, _]
-  ] = Seq(
-    namesFeatureHydrator,
-    tweetypieFeatureHydrator,
-    InNetworkFeatureHydrator,
-    sgsValidSocialContextFeatureHydrator,
-    perspectiveFilteredSocialContextFeatureHydrator,
-  )
-
-  override def filters: Seq[Filter[ForYouQuery, TweetCandidate]] = Seq(
-    RetweetDeduplicationFilter,
-    FeatureFilter.fromFeature(FilterIdentifier(TweetypieHydratedFilterId), IsHydratedFeature),
-    PredicateFeatureFilter.fromPredicate(
-      FilterIdentifier(QuotedTweetDroppedFilterId),
-      shouldKeepCandidate = { features => !features.getOrElse(QuotedTweetDroppedFeature, false) }
-    ),
-    PredicateFeatureFilter.fromPredicate(
-      FilterIdentifier(OutOfNetworkNSFWFilterId),
-      shouldKeepCandidate = { features =>
-        features.getOrElse(InNetworkFeature, false) ||
-        !features.getOrElse(IsNsfwFeature, false)
-      }
-    ),
-    FeedbackFatigueFilter,
-    RejectTweetFromViewerFilter,
-    SocialContextFilter,
-    invalidSubscriptionTweetFilter,
-    InvalidConversationModuleFilter
-  )
-
-  override val postFilterFeatureHydration: Seq[
-    BaseCandidateFeatureHydrator[ForYouQuery, TweetCandidate, _]
-  ] = Seq(focalTweetFeatureHydrator)
-
-  override val scorers: Seq[Scorer[ForYouQuery, TweetCandidate]] =
-    Seq(OONTweetScalingScorer, FeedbackFatigueScorer)
-
-  override val decorator: Option[CandidateDecorator[ForYouQuery, TweetCandidate]] = {
-    val clientEventInfoBuilder = HomeClientEventInfoBuilder()
-
-    val tweetItemBuilder = TweetCandidateUrtItemBuilder(
-      clientEventInfoBuilder = clientEventInfoBuilder,
-      socialContextBuilder = Some(homeTweetSocialContextBuilder),
-      timelinesScoreInfoBuilder = Some(HomeTimelinesScoreInfoBuilder),
-      feedbackActionInfoBuilder = Some(homeFeedbackActionInfoBuilder)
-    )
-
-    val tweetDecorator = UrtItemCandidateDecorator(tweetItemBuilder)
-
-    val moduleBuilder = TimelineModuleBuilder(
-      entryNamespace = ConversationModuleNamespace,
-      clientEventInfoBuilder = clientEventInfoBuilder,
-      moduleIdGeneration = ManualModuleId(0L),
-      displayTypeBuilder = StaticModuleDisplayTypeBuilder(VerticalConversation),
-      metadataBuilder = Some(HomeConversationModuleMetadataBuilder())
-    )
-
-    Some(
-      UrtMultipleModulesDecorator(
-        urtItemCandidateDecorator = tweetDecorator,
-        moduleBuilder = moduleBuilder,
-        groupByKey = (_, _, candidateFeatures) =>
-          candidateFeatures.getOrElse(ConversationModuleFocalTweetIdFeature, None)
-      ))
-  }
-
-  override val alerts: Seq[Alert] = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(),
-    HomeMixerAlertConfig.BusinessHours.defaultEmptyResponseRateAlert(10, 20)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouTimelineScorerMixerPipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouTimelineScorerMixerPipelineConfig.scala
deleted file mode 100644
index 441e5796d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouTimelineScorerMixerPipelineConfig.scala
+++ /dev/null
@@ -1,403 +0,0 @@
-package com.twitter.home_mixer.product.for_you
-
-import com.twitter.clientapp.{thriftscala => ca}
-import com.twitter.goldfinch.api.AdsInjectionSurfaceAreas
-import com.twitter.home_mixer.candidate_pipeline.EditedTweetsCandidatePipelineConfig
-import com.twitter.home_mixer.candidate_pipeline.NewTweetsPillCandidatePipelineConfig
-import com.twitter.home_mixer.functional_component.decorator.urt.builder.AddEntriesWithReplaceAndShowAlertAndCoverInstructionBuilder
-import com.twitter.home_mixer.functional_component.feature_hydrator.FeedbackHistoryQueryFeatureHydrator
-import com.twitter.home_mixer.functional_component.feature_hydrator._
-import com.twitter.home_mixer.functional_component.selector.DebunchCandidates
-import com.twitter.home_mixer.functional_component.selector.UpdateConversationModuleId
-import com.twitter.home_mixer.functional_component.selector.UpdateHomeClientEventDetails
-import com.twitter.home_mixer.functional_component.selector.UpdateNewTweetsPillDecoration
-import com.twitter.home_mixer.functional_component.side_effect._
-import com.twitter.home_mixer.model.ClearCacheIncludeInstruction
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.param.HomeGlobalParams.EnableImpressionBloomFilter
-import com.twitter.home_mixer.param.HomeGlobalParams.MaxNumberReplaceInstructionsParam
-import com.twitter.home_mixer.param.HomeMixerFlagName.ScribeClientEventsFlag
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.home_mixer.product.for_you.feature_hydrator.TimelineServiceTweetsQueryFeatureHydrator
-import com.twitter.home_mixer.product.for_you.model.ForYouQuery
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.ClearCacheOnPtr
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.EnableFlipInjectionModuleCandidatePipelineParam
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.FlipInlineInjectionModulePosition
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.ServerMaxResultsParam
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.TweetPreviewsPositionParam
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.WhoToFollowPositionParam
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.WhoToSubscribePositionParam
-import com.twitter.home_mixer.product.for_you.side_effect.ServedCandidateFeatureKeysKafkaSideEffectBuilder
-import com.twitter.home_mixer.product.for_you.side_effect.ServedCandidateKeysKafkaSideEffectBuilder
-import com.twitter.home_mixer.product.for_you.side_effect.ServedStatsSideEffect
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.inject.annotations.Flag
-import com.twitter.logpipeline.client.common.EventPublisher
-import com.twitter.product_mixer.component_library.feature_hydrator.query.async.AsyncQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.feature_hydrator.query.impressed_tweets.ImpressedTweetsQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.feature_hydrator.query.param_gated.AsyncParamGatedQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.PreviewCreatorsQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.SGSFollowedUsersQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.component_library.pipeline.candidate.flexible_injection_pipeline.FlipPromptCandidatePipelineConfigBuilder
-import com.twitter.product_mixer.component_library.pipeline.candidate.who_to_follow_module.WhoToFollowArmCandidatePipelineConfig
-import com.twitter.product_mixer.component_library.pipeline.candidate.who_to_subscribe_module.WhoToSubscribeCandidatePipelineConfig
-import com.twitter.product_mixer.component_library.premarshaller.urt.UrtDomainMarshaller
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ClearCacheInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.OrderedBottomCursorBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.OrderedTopCursorBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ReplaceAllEntries
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ReplaceEntryInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ShowAlertInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ShowCoverInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.StaticTimelineScribeConfigBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.UrtMetadataBuilder
-import com.twitter.product_mixer.component_library.selector.DropMaxCandidates
-import com.twitter.product_mixer.component_library.selector.DropMaxModuleItemCandidates
-import com.twitter.product_mixer.component_library.selector.DropModuleTooFewModuleItemResults
-import com.twitter.product_mixer.component_library.selector.InsertAppendResults
-import com.twitter.product_mixer.component_library.selector.InsertFixedPositionResults
-import com.twitter.product_mixer.component_library.selector.SelectConditionally
-import com.twitter.product_mixer.component_library.selector.UpdateSortCandidates
-import com.twitter.product_mixer.component_library.selector.UpdateSortModuleItemCandidates
-import com.twitter.product_mixer.component_library.selector.ads.AdsInjector
-import com.twitter.product_mixer.component_library.selector.ads.InsertAdResults
-import com.twitter.product_mixer.core.functional_component.common.SpecificPipeline
-import com.twitter.product_mixer.core.functional_component.common.SpecificPipelines
-import com.twitter.product_mixer.core.functional_component.configapi.StaticParam
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.marshaller.TransportMarshaller
-import com.twitter.product_mixer.core.functional_component.marshaller.response.urt.UrtTransportMarshaller
-import com.twitter.product_mixer.core.functional_component.premarshaller.DomainMarshaller
-import com.twitter.product_mixer.core.functional_component.selector.Selector
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.UniversalNoun
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.MixerPipelineIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.ItemCandidateWithDetails
-import com.twitter.product_mixer.core.model.common.presentation.ModuleCandidateWithDetails
-import com.twitter.product_mixer.core.model.marshalling.response.urt.Timeline
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineModule
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineScribeConfig
-import com.twitter.product_mixer.core.model.marshalling.response.urt.item.tweet.TweetItem
-import com.twitter.product_mixer.core.pipeline.FailOpenPolicy
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.product_mixer.core.pipeline.candidate.DependentCandidatePipelineConfig
-import com.twitter.product_mixer.core.pipeline.mixer.MixerPipelineConfig
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import com.twitter.timelines.render.{thriftscala => urt}
-import javax.inject.Inject
-import javax.inject.Provider
-import javax.inject.Singleton
-
-@Singleton
-class ForYouTimelineScorerMixerPipelineConfig @Inject() (
-  forYouTimelineScorerCandidatePipelineConfig: ForYouTimelineScorerCandidatePipelineConfig,
-  forYouPushToHomeTweetCandidatePipelineConfig: ForYouPushToHomeTweetCandidatePipelineConfig,
-  forYouConversationServiceCandidatePipelineConfig: ForYouConversationServiceCandidatePipelineConfig,
-  forYouAdsDependentCandidatePipelineBuilder: ForYouAdsDependentCandidatePipelineBuilder,
-  forYouWhoToFollowCandidatePipelineConfigBuilder: ForYouWhoToFollowCandidatePipelineConfigBuilder,
-  forYouWhoToSubscribeCandidatePipelineConfigBuilder: ForYouWhoToSubscribeCandidatePipelineConfigBuilder,
-  flipPromptCandidatePipelineConfigBuilder: FlipPromptCandidatePipelineConfigBuilder,
-  editedTweetsCandidatePipelineConfig: EditedTweetsCandidatePipelineConfig,
-  newTweetsPillCandidatePipelineConfig: NewTweetsPillCandidatePipelineConfig[ForYouQuery],
-  forYouTweetPreviewsCandidatePipelineConfig: ForYouTweetPreviewsCandidatePipelineConfig,
-  dismissInfoQueryFeatureHydrator: DismissInfoQueryFeatureHydrator,
-  gizmoduckUserQueryFeatureHydrator: GizmoduckUserQueryFeatureHydrator,
-  impressionBloomFilterQueryFeatureHydrator: ImpressionBloomFilterQueryFeatureHydrator[ForYouQuery],
-  manhattanTweetImpressionsQueryFeatureHydrator: TweetImpressionsQueryFeatureHydrator[ForYouQuery],
-  memcacheTweetImpressionsQueryFeatureHydrator: ImpressedTweetsQueryFeatureHydrator,
-  persistenceStoreQueryFeatureHydrator: PersistenceStoreQueryFeatureHydrator,
-  requestQueryFeatureHydrator: RequestQueryFeatureHydrator[ForYouQuery],
-  timelineServiceTweetsQueryFeatureHydrator: TimelineServiceTweetsQueryFeatureHydrator,
-  lastNonPollingTimeQueryFeatureHydrator: LastNonPollingTimeQueryFeatureHydrator,
-  feedbackHistoryQueryFeatureHydrator: FeedbackHistoryQueryFeatureHydrator,
-  previewCreatorsQueryFeatureHydrator: PreviewCreatorsQueryFeatureHydrator,
-  sgsFollowedUsersQueryFeatureHydrator: SGSFollowedUsersQueryFeatureHydrator,
-  adsInjector: AdsInjector,
-  servedCandidateKeysKafkaSideEffectBuilder: ServedCandidateKeysKafkaSideEffectBuilder,
-  servedCandidateFeatureKeysKafkaSideEffectBuilder: ServedCandidateFeatureKeysKafkaSideEffectBuilder,
-  updateLastNonPollingTimeSideEffect: UpdateLastNonPollingTimeSideEffect[ForYouQuery, Timeline],
-  publishClientSentImpressionsEventBusSideEffect: PublishClientSentImpressionsEventBusSideEffect,
-  publishClientSentImpressionsManhattanSideEffect: PublishClientSentImpressionsManhattanSideEffect,
-  publishImpressionBloomFilterSideEffect: PublishImpressionBloomFilterSideEffect,
-  updateTimelinesPersistenceStoreSideEffect: UpdateTimelinesPersistenceStoreSideEffect,
-  truncateTimelinesPersistenceStoreSideEffect: TruncateTimelinesPersistenceStoreSideEffect,
-  homeScribeServedCandidatesSideEffect: HomeScribeServedCandidatesSideEffect,
-  servedStatsSideEffect: ServedStatsSideEffect,
-  clientEventsScribeEventPublisher: EventPublisher[ca.LogEvent],
-  externalStrings: HomeMixerExternalStrings,
-  @ProductScoped stringCenterProvider: Provider[StringCenter],
-  urtTransportMarshaller: UrtTransportMarshaller,
-  @Flag(ScribeClientEventsFlag) enableScribeClientEvents: Boolean)
-    extends MixerPipelineConfig[ForYouQuery, Timeline, urt.TimelineResponse] {
-
-  override val identifier: MixerPipelineIdentifier = MixerPipelineIdentifier("ForYouTimelineScorer")
-
-  private val MaxConsecutiveOutOfNetworkCandidates = 2
-
-  private val PushToHomeTweetPosition = 0
-
-  private val dependentCandidatesStep = MixerPipelineConfig.dependentCandidatePipelinesStep
-  private val resultSelectorsStep = MixerPipelineConfig.resultSelectorsStep
-
-  override def fetchQueryFeatures: Seq[QueryFeatureHydrator[ForYouQuery]] = Seq(
-    requestQueryFeatureHydrator,
-    persistenceStoreQueryFeatureHydrator,
-    timelineServiceTweetsQueryFeatureHydrator,
-    feedbackHistoryQueryFeatureHydrator,
-    previewCreatorsQueryFeatureHydrator,
-    sgsFollowedUsersQueryFeatureHydrator,
-    AsyncQueryFeatureHydrator(dependentCandidatesStep, dismissInfoQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(dependentCandidatesStep, gizmoduckUserQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(dependentCandidatesStep, lastNonPollingTimeQueryFeatureHydrator),
-    AsyncParamGatedQueryFeatureHydrator(
-      EnableImpressionBloomFilter,
-      resultSelectorsStep,
-      impressionBloomFilterQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(resultSelectorsStep, manhattanTweetImpressionsQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(resultSelectorsStep, memcacheTweetImpressionsQueryFeatureHydrator)
-  )
-
-  private val timelineScorerCandidatePipelineScope =
-    SpecificPipeline(forYouTimelineScorerCandidatePipelineConfig.identifier)
-
-  private val forYouAdsCandidatePipelineConfig = forYouAdsDependentCandidatePipelineBuilder
-    .build(timelineScorerCandidatePipelineScope)
-
-  private val forYouWhoToFollowCandidatePipelineConfig =
-    forYouWhoToFollowCandidatePipelineConfigBuilder.build()
-
-  private val forYouWhoToSubscribeCandidatePipelineConfig =
-    forYouWhoToSubscribeCandidatePipelineConfigBuilder.build()
-
-  private val flipPromptCandidatePipelineConfig =
-    flipPromptCandidatePipelineConfigBuilder.build[ForYouQuery](
-      supportedClientParam = Some(EnableFlipInjectionModuleCandidatePipelineParam)
-    )
-
-  override val candidatePipelines: Seq[CandidatePipelineConfig[ForYouQuery, _, _, _]] = Seq(
-    forYouTimelineScorerCandidatePipelineConfig,
-    forYouPushToHomeTweetCandidatePipelineConfig,
-    forYouWhoToFollowCandidatePipelineConfig,
-    forYouWhoToSubscribeCandidatePipelineConfig,
-    forYouTweetPreviewsCandidatePipelineConfig,
-    flipPromptCandidatePipelineConfig
-  )
-
-  override val dependentCandidatePipelines: Seq[
-    DependentCandidatePipelineConfig[ForYouQuery, _, _, _]
-  ] = Seq(
-    forYouAdsCandidatePipelineConfig,
-    forYouConversationServiceCandidatePipelineConfig,
-    editedTweetsCandidatePipelineConfig,
-    newTweetsPillCandidatePipelineConfig
-  )
-
-  override val failOpenPolicies: Map[CandidatePipelineIdentifier, FailOpenPolicy] = Map(
-    forYouTimelineScorerCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    forYouAdsCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    forYouWhoToFollowCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    forYouWhoToSubscribeCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    forYouTweetPreviewsCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    flipPromptCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    editedTweetsCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    newTweetsPillCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-  )
-
-  override val resultSelectors: Seq[Selector[ForYouQuery]] = Seq(
-    UpdateSortCandidates(
-      ordering = CandidatesUtil.reverseChronTweetsOrdering,
-      candidatePipeline = forYouConversationServiceCandidatePipelineConfig.identifier
-    ),
-    UpdateSortCandidates(
-      ordering = CandidatesUtil.scoreOrdering,
-      candidatePipeline = forYouTimelineScorerCandidatePipelineConfig.identifier
-    ),
-    UpdateSortModuleItemCandidates(
-      candidatePipeline = forYouTimelineScorerCandidatePipelineConfig.identifier,
-      ordering = CandidatesUtil.conversationModuleTweetsOrdering
-    ),
-    DebunchCandidates(
-      pipelineScope = SpecificPipeline(forYouTimelineScorerCandidatePipelineConfig.identifier),
-      mustDebunch = {
-        case item: ItemCandidateWithDetails =>
-          !item.features.getOrElse(InNetworkFeature, false)
-        case module: ModuleCandidateWithDetails =>
-          !module.candidates.last.features.getOrElse(InNetworkFeature, false)
-      },
-      maxBunchSize = MaxConsecutiveOutOfNetworkCandidates
-    ),
-    UpdateConversationModuleId(
-      pipelineScope = SpecificPipeline(forYouTimelineScorerCandidatePipelineConfig.identifier)
-    ),
-    DropMaxCandidates(
-      candidatePipeline = forYouConversationServiceCandidatePipelineConfig.identifier,
-      maxSelectionsParam = ServerMaxResultsParam
-    ),
-    DropMaxCandidates(
-      candidatePipeline = forYouTimelineScorerCandidatePipelineConfig.identifier,
-      maxSelectionsParam = ServerMaxResultsParam
-    ),
-    DropMaxCandidates(
-      candidatePipeline = editedTweetsCandidatePipelineConfig.identifier,
-      maxSelectionsParam = MaxNumberReplaceInstructionsParam
-    ),
-    DropMaxModuleItemCandidates(
-      candidatePipeline = forYouWhoToFollowCandidatePipelineConfig.identifier,
-      maxModuleItemsParam = StaticParam(WhoToFollowArmCandidatePipelineConfig.MaxCandidatesSize)
-    ),
-    DropModuleTooFewModuleItemResults(
-      candidatePipeline = forYouWhoToSubscribeCandidatePipelineConfig.identifier,
-      minModuleItemsParam = StaticParam(WhoToSubscribeCandidatePipelineConfig.MinCandidatesSize)
-    ),
-    DropMaxModuleItemCandidates(
-      candidatePipeline = forYouWhoToSubscribeCandidatePipelineConfig.identifier,
-      maxModuleItemsParam = StaticParam(WhoToSubscribeCandidatePipelineConfig.MaxCandidatesSize)
-    ),
-    // Add Conversation Service tweets to results only if the scored pipeline doesn't return any
-    SelectConditionally(
-      selector = InsertAppendResults(
-        candidatePipeline = forYouConversationServiceCandidatePipelineConfig.identifier),
-      includeSelector = (_, candidates, _) =>
-        !candidates.exists(candidate =>
-          forYouTimelineScorerCandidatePipelineConfig.identifier == candidate.source)
-    ),
-    InsertAppendResults(candidatePipeline = forYouTimelineScorerCandidatePipelineConfig.identifier),
-    InsertFixedPositionResults(
-      candidatePipeline = forYouTweetPreviewsCandidatePipelineConfig.identifier,
-      positionParam = TweetPreviewsPositionParam
-    ),
-    InsertFixedPositionResults(
-      candidatePipeline = forYouWhoToFollowCandidatePipelineConfig.identifier,
-      positionParam = WhoToFollowPositionParam
-    ),
-    InsertFixedPositionResults(
-      candidatePipeline = forYouWhoToSubscribeCandidatePipelineConfig.identifier,
-      positionParam = WhoToSubscribePositionParam
-    ),
-    InsertFixedPositionResults(
-      candidatePipeline = flipPromptCandidatePipelineConfig.identifier,
-      positionParam = FlipInlineInjectionModulePosition
-    ),
-    // Insert Push To Home Tweet at top of Timeline
-    InsertFixedPositionResults(
-      candidatePipeline = forYouPushToHomeTweetCandidatePipelineConfig.identifier,
-      positionParam = StaticParam(PushToHomeTweetPosition)
-    ),
-    InsertAdResults(
-      surfaceAreaName = AdsInjectionSurfaceAreas.HomeTimeline,
-      adsInjector = adsInjector.forSurfaceArea(AdsInjectionSurfaceAreas.HomeTimeline),
-      adsCandidatePipeline = forYouAdsCandidatePipelineConfig.identifier
-    ),
-    // This selector must come after the tweets are inserted into the results
-    DropModuleTooFewModuleItemResults(
-      candidatePipeline = forYouWhoToFollowCandidatePipelineConfig.identifier,
-      minModuleItemsParam = StaticParam(WhoToFollowArmCandidatePipelineConfig.MinCandidatesSize)
-    ),
-    UpdateNewTweetsPillDecoration(
-      pipelineScope = SpecificPipelines(
-        forYouConversationServiceCandidatePipelineConfig.identifier,
-        forYouTimelineScorerCandidatePipelineConfig.identifier,
-        newTweetsPillCandidatePipelineConfig.identifier
-      ),
-      stringCenter = stringCenterProvider.get(),
-      seeNewTweetsString = externalStrings.seeNewTweetsString,
-      tweetedString = externalStrings.tweetedString
-    ),
-    InsertAppendResults(candidatePipeline = editedTweetsCandidatePipelineConfig.identifier),
-    SelectConditionally(
-      selector =
-        InsertAppendResults(candidatePipeline = newTweetsPillCandidatePipelineConfig.identifier),
-      includeSelector = (_, _, results) => CandidatesUtil.containsType[TweetCandidate](results)
-    ),
-    UpdateHomeClientEventDetails(
-      candidatePipelines = Set(
-        forYouConversationServiceCandidatePipelineConfig.identifier,
-        forYouTimelineScorerCandidatePipelineConfig.identifier
-      )
-    ),
-  )
-
-  private val servedCandidateKeysKafkaSideEffect =
-    servedCandidateKeysKafkaSideEffectBuilder.build(
-      Set(forYouTimelineScorerCandidatePipelineConfig.identifier))
-
-  private val servedCandidateFeatureKeysKafkaSideEffect =
-    servedCandidateFeatureKeysKafkaSideEffectBuilder.build(
-      Set(forYouTimelineScorerCandidatePipelineConfig.identifier))
-
-  private val homeScribeClientEventSideEffect = HomeScribeClientEventSideEffect(
-    enableScribeClientEvents = enableScribeClientEvents,
-    logPipelinePublisher = clientEventsScribeEventPublisher,
-    injectedTweetsCandidatePipelineIdentifiers = Seq(
-      forYouTimelineScorerCandidatePipelineConfig.identifier,
-      forYouConversationServiceCandidatePipelineConfig.identifier
-    ),
-    adsCandidatePipelineIdentifier = Some(forYouAdsCandidatePipelineConfig.identifier),
-    whoToFollowCandidatePipelineIdentifier =
-      Some(forYouWhoToFollowCandidatePipelineConfig.identifier),
-    whoToSubscribeCandidatePipelineIdentifier =
-      Some(forYouWhoToSubscribeCandidatePipelineConfig.identifier)
-  )
-
-  override val resultSideEffects: Seq[PipelineResultSideEffect[ForYouQuery, Timeline]] = Seq(
-    homeScribeClientEventSideEffect,
-    homeScribeServedCandidatesSideEffect,
-    publishClientSentImpressionsEventBusSideEffect,
-    publishClientSentImpressionsManhattanSideEffect,
-    publishImpressionBloomFilterSideEffect,
-    servedCandidateKeysKafkaSideEffect,
-    servedCandidateFeatureKeysKafkaSideEffect,
-    servedStatsSideEffect,
-    truncateTimelinesPersistenceStoreSideEffect,
-    updateLastNonPollingTimeSideEffect,
-    updateTimelinesPersistenceStoreSideEffect
-  )
-
-  override val domainMarshaller: DomainMarshaller[ForYouQuery, Timeline] = {
-    val instructionBuilders = Seq(
-      ClearCacheInstructionBuilder(
-        ClearCacheIncludeInstruction(
-          ClearCacheOnPtr.EnableParam,
-          ClearCacheOnPtr.MinEntriesParam
-        )
-      ),
-      ReplaceEntryInstructionBuilder(ReplaceAllEntries),
-      // excludes alert, cover, and replace candidates
-      AddEntriesWithReplaceAndShowAlertAndCoverInstructionBuilder(),
-      ShowAlertInstructionBuilder(),
-      ShowCoverInstructionBuilder(),
-    )
-
-    val idSelector: PartialFunction[UniversalNoun[_], Long] = {
-      // exclude ads while determining tweet cursor values
-      case item: TweetItem if item.promotedMetadata.isEmpty => item.id
-      case module: TimelineModule
-          if module.items.headOption.exists(_.item.isInstanceOf[TweetItem]) =>
-        module.items.last.item match { case item: TweetItem => item.id }
-    }
-    val topCursorBuilder = OrderedTopCursorBuilder(idSelector)
-    val bottomCursorBuilder = OrderedBottomCursorBuilder(idSelector)
-
-    val metadataBuilder = UrtMetadataBuilder(
-      title = None,
-      scribeConfigBuilder = Some(
-        StaticTimelineScribeConfigBuilder(
-          TimelineScribeConfig(
-            page = Some("for_you_timeline_scorer"),
-            section = None,
-            entityToken = None)))
-    )
-
-    UrtDomainMarshaller(
-      instructionBuilders = instructionBuilders,
-      metadataBuilder = Some(metadataBuilder),
-      cursorBuilders = Seq(topCursorBuilder, bottomCursorBuilder)
-    )
-  }
-
-  override val transportMarshaller: TransportMarshaller[Timeline, urt.TimelineResponse] =
-    urtTransportMarshaller
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouTimelineScorerResponseFeatureTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouTimelineScorerResponseFeatureTransformer.scala
deleted file mode 100644
index 236ca9a26..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouTimelineScorerResponseFeatureTransformer.scala
+++ /dev/null
@@ -1,199 +0,0 @@
-package com.twitter.home_mixer.product.for_you
-
-import com.twitter.tweetconvosvc.tweet_ancestor.{thriftscala => ta}
-import com.twitter.home_mixer.model.HomeFeatures._
-import com.twitter.mediaservices.commons.tweetmedia.{thriftscala => mt}
-import com.twitter.product_mixer.component_library.candidate_source.timeline_scorer.ScoredTweetCandidateWithFocalTweet
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.BasicTopicContextFunctionalityType
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RecWithEducationTopicContextFunctionalityType
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RecommendationTopicContextFunctionalityType
-import com.twitter.search.common.constants.thriftjava.ThriftLanguage
-import com.twitter.search.common.util.lang.ThriftLanguageUtil
-import com.twitter.snowflake.id.SnowflakeId
-import com.twitter.timelinemixer.injection.model.candidate.AudioSpaceMetaData
-import com.twitter.timelines.conversation_features.{thriftscala => cvt}
-import com.twitter.timelinescorer.common.scoredtweetcandidate.{thriftscala => stc}
-import com.twitter.timelineservice.suggests.{thriftscala => tls}
-
-object ForYouTimelineScorerResponseFeatureTransformer
-    extends CandidateFeatureTransformer[ScoredTweetCandidateWithFocalTweet] {
-
-  override val identifier: TransformerIdentifier =
-    TransformerIdentifier("ForYouTimelineScorerResponse")
-
-  override val features: Set[Feature[_, _]] = Set(
-    AncestorsFeature,
-    AudioSpaceMetaDataFeature,
-    AuthorIdFeature,
-    AuthorIsBlueVerifiedFeature,
-    AuthorIsCreatorFeature,
-    AuthorIsGoldVerifiedFeature,
-    AuthorIsGrayVerifiedFeature,
-    AuthorIsLegacyVerifiedFeature,
-    AuthoredByContextualUserFeature,
-    CandidateSourceIdFeature,
-    ConversationFeature,
-    ConversationModuleFocalTweetIdFeature,
-    ConversationModuleIdFeature,
-    DirectedAtUserIdFeature,
-    EarlybirdFeature,
-    EntityTokenFeature,
-    ExclusiveConversationAuthorIdFeature,
-    FavoritedByUserIdsFeature,
-    FollowedByUserIdsFeature,
-    TopicIdSocialContextFeature,
-    TopicContextFunctionalityTypeFeature,
-    FromInNetworkSourceFeature,
-    FullScoringSucceededFeature,
-    HasDisplayedTextFeature,
-    InNetworkFeature,
-    InReplyToTweetIdFeature,
-    IsAncestorCandidateFeature,
-    IsExtendedReplyFeature,
-    IsRandomTweetFeature,
-    IsReadFromCacheFeature,
-    IsRetweetFeature,
-    IsRetweetedReplyFeature,
-    NonSelfFavoritedByUserIdsFeature,
-    NumImagesFeature,
-    OriginalTweetCreationTimeFromSnowflakeFeature,
-    PredictionRequestIdFeature,
-    QuotedTweetIdFeature,
-    ScoreFeature,
-    SimclustersTweetTopKClustersWithScoresFeature,
-    SourceTweetIdFeature,
-    SourceUserIdFeature,
-    StreamToKafkaFeature,
-    SuggestTypeFeature,
-    TweetLanguageFeature,
-    VideoDurationMsFeature,
-  )
-
-  // Convert language code to ISO 639-3 format
-  private def getLanguageISOFormatByValue(languageCodeValue: Int): String =
-    ThriftLanguageUtil.getLanguageCodeOf(ThriftLanguage.findByValue(languageCodeValue))
-
-  override def transform(
-    candidateWithFocalTweet: ScoredTweetCandidateWithFocalTweet
-  ): FeatureMap = {
-    val candidate: stc.v1.ScoredTweetCandidate = candidateWithFocalTweet.candidate
-    val focalTweetId = candidateWithFocalTweet.focalTweetIdOpt
-
-    val originalTweetId = candidate.sourceTweetId.getOrElse(candidate.tweetId)
-    val tweetFeatures = candidate.tweetFeaturesMap.flatMap(_.get(originalTweetId))
-    val earlybirdFeatures = tweetFeatures.flatMap(_.recapFeatures.flatMap(_.tweetFeatures))
-    val directedAtUserIsInFirstDegree =
-      earlybirdFeatures.flatMap(_.directedAtUserIdIsInFirstDegree)
-    val isReply = candidate.inReplyToTweetId.nonEmpty
-    val isRetweet = candidate.isRetweet.getOrElse(false)
-    val isInNetwork = candidate.isInNetwork.getOrElse(true)
-    val conversationFeatures = candidate.conversationFeatures.flatMap {
-      case cvt.ConversationFeatures.V1(candidate) => Some(candidate)
-      case _ => None
-    }
-    val numImages = candidate.mediaMetaData
-      .map(
-        _.count(mediaEntity =>
-          mediaEntity.mediaInfo.exists(_.isInstanceOf[mt.MediaInfo.ImageInfo]) ||
-            mediaEntity.mediaInfo.isEmpty))
-    val hasImage = earlybirdFeatures.exists(_.hasImage)
-    val hasVideo = earlybirdFeatures.exists(_.hasVideo)
-    val hasCard = earlybirdFeatures.exists(_.hasCard)
-    val hasQuote = earlybirdFeatures.exists(_.hasQuote.contains(true))
-    val hasDisplayedText = earlybirdFeatures.exists(_.tweetLength.exists(length => {
-      val numMedia = Seq(hasVideo, (hasImage || hasCard), hasQuote).count(b => b)
-      val tcoLengthsPlusSpaces = 23 * numMedia + (if (numMedia > 0) numMedia - 1 else 0)
-      length > tcoLengthsPlusSpaces
-    }))
-    val suggestType = candidate.overrideSuggestType.orElse(Some(tls.SuggestType.Undefined))
-
-    val topicSocialProofMetadataOpt = candidate.entityData.flatMap(_.topicSocialProofMetadata)
-    val topicIdSocialContextOpt = topicSocialProofMetadataOpt.map(_.topicId)
-    val topicContextFunctionalityTypeOpt =
-      topicSocialProofMetadataOpt.map(_.topicContextFunctionalityType).collect {
-        case stc.v1.TopicContextFunctionalityType.Basic => BasicTopicContextFunctionalityType
-        case stc.v1.TopicContextFunctionalityType.Recommendation =>
-          RecommendationTopicContextFunctionalityType
-        case stc.v1.TopicContextFunctionalityType.RecWithEducation =>
-          RecWithEducationTopicContextFunctionalityType
-      }
-
-    FeatureMapBuilder()
-      .add(
-        AncestorsFeature,
-        candidate.ancestors
-          .getOrElse(Seq.empty)
-          .map(ancestor => ta.TweetAncestor(ancestor.tweetId, ancestor.userId.getOrElse(0L))))
-      .add(
-        AudioSpaceMetaDataFeature,
-        candidate.audioSpaceMetaDatalist.map(_.head).map(AudioSpaceMetaData.fromThrift))
-      .add(AuthorIdFeature, Some(candidate.authorId))
-      .add(AuthorIsBlueVerifiedFeature, candidate.authorIsBlueVerified.getOrElse(false))
-      .add(
-        AuthorIsCreatorFeature,
-        candidate.authorIsCreator.getOrElse(false)
-      )
-      .add(AuthorIsGoldVerifiedFeature, candidate.authorIsGoldVerified.getOrElse(false))
-      .add(AuthorIsGrayVerifiedFeature, candidate.authorIsGrayVerified.getOrElse(false))
-      .add(AuthorIsLegacyVerifiedFeature, candidate.authorIsLegacyVerified.getOrElse(false))
-      .add(
-        AuthoredByContextualUserFeature,
-        candidate.viewerId.contains(candidate.authorId) ||
-          candidate.viewerId.exists(candidate.sourceUserId.contains))
-      .add(CandidateSourceIdFeature, candidate.candidateTweetSourceId)
-      .add(ConversationFeature, conversationFeatures)
-      .add(ConversationModuleIdFeature, candidate.conversationId)
-      .add(ConversationModuleFocalTweetIdFeature, focalTweetId)
-      .add(DirectedAtUserIdFeature, candidate.directedAtUserId)
-      .add(EarlybirdFeature, earlybirdFeatures)
-      // This is temporary, will need to be updated with the encoded string.
-      .add(EntityTokenFeature, Some("test_EntityTokenForYou"))
-      .add(ExclusiveConversationAuthorIdFeature, candidate.exclusiveConversationAuthorId)
-      .add(FavoritedByUserIdsFeature, candidate.favoritedByUserIds.getOrElse(Seq.empty))
-      .add(FollowedByUserIdsFeature, candidate.followedByUserIds.getOrElse(Seq.empty))
-      .add(TopicIdSocialContextFeature, topicIdSocialContextOpt)
-      .add(TopicContextFunctionalityTypeFeature, topicContextFunctionalityTypeOpt)
-      .add(FullScoringSucceededFeature, candidate.fullScoringSucceeded.getOrElse(false))
-      .add(HasDisplayedTextFeature, hasDisplayedText)
-      .add(InNetworkFeature, candidate.isInNetwork.getOrElse(true))
-      .add(InReplyToTweetIdFeature, candidate.inReplyToTweetId)
-      .add(IsAncestorCandidateFeature, candidate.isAncestorCandidate.getOrElse(false))
-      .add(
-        IsExtendedReplyFeature,
-        isInNetwork && isReply && !isRetweet && directedAtUserIsInFirstDegree.contains(false))
-      .add(FromInNetworkSourceFeature, candidate.isInNetwork.getOrElse(true))
-      .add(IsRandomTweetFeature, candidate.isRandomTweet.getOrElse(false))
-      .add(IsReadFromCacheFeature, candidate.isReadFromCache.getOrElse(false))
-      .add(IsRetweetFeature, candidate.isRetweet.getOrElse(false))
-      .add(IsRetweetedReplyFeature, isReply && isRetweet)
-      .add(
-        NonSelfFavoritedByUserIdsFeature,
-        candidate.favoritedByUserIds.getOrElse(Seq.empty).filterNot(_ == candidate.authorId))
-      .add(NumImagesFeature, numImages)
-      .add(
-        OriginalTweetCreationTimeFromSnowflakeFeature,
-        SnowflakeId.timeFromIdOpt(originalTweetId))
-      .add(PredictionRequestIdFeature, candidate.predictionRequestId)
-      .add(ScoreFeature, Some(candidate.score))
-      .add(
-        SimclustersTweetTopKClustersWithScoresFeature,
-        candidate.simclustersTweetTopKClustersWithScores.map(_.toMap).getOrElse(Map.empty))
-      .add(
-        StreamToKafkaFeature,
-        candidate.predictionRequestId.nonEmpty && candidate.fullScoringSucceeded.getOrElse(false))
-      .add(SourceTweetIdFeature, candidate.sourceTweetId)
-      .add(SourceUserIdFeature, candidate.sourceUserId)
-      .add(SuggestTypeFeature, suggestType)
-      .add(QuotedTweetIdFeature, candidate.quotedTweetId)
-      .add(
-        TweetLanguageFeature,
-        earlybirdFeatures.flatMap(_.language.map(_.value)).map(getLanguageISOFormatByValue))
-      .add(VideoDurationMsFeature, earlybirdFeatures.flatMap(_.videoDurationMs))
-      .build()
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouTweetPreviewsCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouTweetPreviewsCandidatePipelineConfig.scala
deleted file mode 100644
index c60278bfb..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouTweetPreviewsCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,143 +0,0 @@
-package com.twitter.home_mixer.product.for_you
-
-import com.twitter.home_mixer.functional_component.candidate_source.EarlybirdCandidateSource
-import com.twitter.home_mixer.functional_component.decorator.urt.builder.HomeFeedbackActionInfoBuilder
-import com.twitter.home_mixer.functional_component.filter.DropMaxCandidatesFilter
-import com.twitter.home_mixer.functional_component.filter.PreviouslyServedTweetPreviewsFilter
-import com.twitter.home_mixer.functional_component.gate.TimelinesPersistenceStoreLastInjectionGate
-import com.twitter.home_mixer.model.HomeFeatures.AuthorEnabledPreviewsFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsHydratedFeature
-import com.twitter.home_mixer.model.HomeFeatures.PersistenceEntriesFeature
-import com.twitter.home_mixer.product.for_you.feature_hydrator.AuthorEnabledPreviewsFeatureHydrator
-import com.twitter.home_mixer.product.for_you.feature_hydrator.TweetPreviewTweetypieCandidateFeatureHydrator
-import com.twitter.home_mixer.product.for_you.filter.TweetPreviewTextFilter
-import com.twitter.home_mixer.product.for_you.model.ForYouQuery
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.EnableTweetPreviewsCandidatePipelineParam
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.TweetPreviewsMaxCandidatesParam
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.TweetPreviewsMinInjectionIntervalParam
-import com.twitter.home_mixer.product.for_you.query_transformer.TweetPreviewsQueryTransformer
-import com.twitter.home_mixer.product.for_you.response_transformer.TweetPreviewResponseFeatureTransformer
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.component_library.decorator.urt.UrtItemCandidateDecorator
-import com.twitter.product_mixer.component_library.decorator.urt.builder.contextual_ref.ContextualTweetRefBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.item.tweet.TweetCandidateUrtItemBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.metadata.ClientEventInfoBuilder
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.PreviewCreatorsFeature
-import com.twitter.product_mixer.component_library.filter.FeatureFilter
-import com.twitter.product_mixer.component_library.gate.NonEmptySeqFeatureGate
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.CandidateSourceWithExtractedFeatures
-import com.twitter.product_mixer.core.functional_component.common.alert.Alert
-import com.twitter.product_mixer.core.functional_component.decorator.CandidateDecorator
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BaseCandidateFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.rtf.safety_level.TimelineHomeTweetPreviewHydrationSafetyLevel
-import com.twitter.product_mixer.core.model.marshalling.response.urt.contextual_ref.TweetHydrationContext
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.search.earlybird.{thriftscala => eb}
-import com.twitter.timelines.configapi.FSParam
-import com.twitter.timelines.injection.scribe.InjectionScribeUtil
-import com.twitter.timelineservice.model.rich.EntityIdType
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ForYouTweetPreviewsCandidatePipelineConfig @Inject() (
-  earlybirdCandidateSource: EarlybirdCandidateSource,
-  authorEnabledPreviewsFeatureHydrator: AuthorEnabledPreviewsFeatureHydrator,
-  tweetPreviewsQueryTransformer: TweetPreviewsQueryTransformer,
-  tweetPreviewTweetypieCandidateFeatureHydrator: TweetPreviewTweetypieCandidateFeatureHydrator,
-  homeFeedbackActionInfoBuilder: HomeFeedbackActionInfoBuilder)
-    extends CandidatePipelineConfig[
-      ForYouQuery,
-      eb.EarlybirdRequest,
-      eb.ThriftSearchResult,
-      TweetCandidate
-    ] {
-
-  val identifier: CandidatePipelineIdentifier = CandidatePipelineIdentifier("ForYouTweetPreviews")
-
-  override val supportedClientParam: Option[FSParam[Boolean]] =
-    Some(EnableTweetPreviewsCandidatePipelineParam)
-
-  override val gates: Seq[Gate[ForYouQuery]] = {
-    Seq(
-      TimelinesPersistenceStoreLastInjectionGate(
-        TweetPreviewsMinInjectionIntervalParam,
-        PersistenceEntriesFeature,
-        EntityIdType.TweetPreview
-      ),
-      NonEmptySeqFeatureGate(PreviewCreatorsFeature)
-    )
-  }
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[
-    PipelineQuery,
-    eb.EarlybirdRequest
-  ] = tweetPreviewsQueryTransformer
-
-  override val candidateSource: CandidateSourceWithExtractedFeatures[
-    eb.EarlybirdRequest,
-    eb.ThriftSearchResult
-  ] = earlybirdCandidateSource
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[eb.ThriftSearchResult]
-  ] = Seq(TweetPreviewResponseFeatureTransformer)
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    eb.ThriftSearchResult,
-    TweetCandidate
-  ] = { tweet => TweetCandidate(tweet.id) }
-
-  override val preFilterFeatureHydrationPhase1: Seq[
-    BaseCandidateFeatureHydrator[ForYouQuery, TweetCandidate, _]
-  ] = Seq(
-    authorEnabledPreviewsFeatureHydrator,
-    tweetPreviewTweetypieCandidateFeatureHydrator,
-  )
-
-  override val filters: Seq[
-    Filter[ForYouQuery, TweetCandidate]
-  ] = Seq(
-    PreviouslyServedTweetPreviewsFilter,
-    FeatureFilter
-      .fromFeature(FilterIdentifier("TweetPreviewVisibilityFiltering"), IsHydratedFeature),
-    FeatureFilter
-      .fromFeature(FilterIdentifier("AuthorEnabledPreviews"), AuthorEnabledPreviewsFeature),
-    TweetPreviewTextFilter,
-    DropMaxCandidatesFilter(TweetPreviewsMaxCandidatesParam)
-  )
-
-  override val decorator: Option[CandidateDecorator[PipelineQuery, TweetCandidate]] = {
-    val component = InjectionScribeUtil.scribeComponent(st.SuggestType.TweetPreview).get
-    val clientEventInfoBuilder = ClientEventInfoBuilder[PipelineQuery, TweetCandidate](component)
-
-    val tweetItemBuilder = TweetCandidateUrtItemBuilder[PipelineQuery, TweetCandidate](
-      clientEventInfoBuilder = clientEventInfoBuilder,
-      contextualTweetRefBuilder = Some(
-        ContextualTweetRefBuilder(
-          TweetHydrationContext(
-            safetyLevelOverride = Some(TimelineHomeTweetPreviewHydrationSafetyLevel),
-            outerTweetContext = None
-          )
-        )
-      ),
-      feedbackActionInfoBuilder = Some(homeFeedbackActionInfoBuilder),
-    )
-
-    Some(UrtItemCandidateDecorator(tweetItemBuilder))
-  }
-
-  override val alerts: Seq[Alert] = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(95))
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouWhoToFollowCandidatePipelineConfigBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouWhoToFollowCandidatePipelineConfigBuilder.scala
deleted file mode 100644
index 856f1fa6b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouWhoToFollowCandidatePipelineConfigBuilder.scala
+++ /dev/null
@@ -1,56 +0,0 @@
-package com.twitter.home_mixer.product.for_you
-
-import com.twitter.home_mixer.functional_component.decorator.urt.builder.HomeWhoToFollowFeedbackActionInfoBuilder
-import com.twitter.home_mixer.functional_component.gate.DismissFatigueGate
-import com.twitter.home_mixer.functional_component.gate.TimelinesPersistenceStoreLastInjectionGate
-import com.twitter.home_mixer.model.HomeFeatures.DismissInfoFeature
-import com.twitter.home_mixer.model.HomeFeatures.PersistenceEntriesFeature
-import com.twitter.home_mixer.model.HomeFeatures.WhoToFollowExcludedUserIdsFeature
-import com.twitter.home_mixer.product.for_you.model.ForYouQuery
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.EnableWhoToFollowCandidatePipelineParam
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.WhoToFollowDisplayLocationParam
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.WhoToFollowDisplayTypeIdParam
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.WhoToFollowMinInjectionIntervalParam
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.component_library.decorator.urt.builder.timeline_module.ParamWhoToFollowModuleDisplayTypeBuilder
-import com.twitter.product_mixer.component_library.pipeline.candidate.who_to_follow_module.WhoToFollowArmCandidatePipelineConfig
-import com.twitter.product_mixer.component_library.pipeline.candidate.who_to_follow_module.WhoToFollowArmCandidatePipelineConfigBuilder
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.timelineservice.model.rich.EntityIdType
-import com.twitter.timelineservice.suggests.thriftscala.SuggestType
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ForYouWhoToFollowCandidatePipelineConfigBuilder @Inject() (
-  whoToFollowArmCandidatePipelineConfigBuilder: WhoToFollowArmCandidatePipelineConfigBuilder,
-  homeWhoToFollowFeedbackActionInfoBuilder: HomeWhoToFollowFeedbackActionInfoBuilder) {
-
-  def build(): WhoToFollowArmCandidatePipelineConfig[ForYouQuery] = {
-    val gates: Seq[Gate[ForYouQuery]] = Seq(
-      TimelinesPersistenceStoreLastInjectionGate(
-        WhoToFollowMinInjectionIntervalParam,
-        PersistenceEntriesFeature,
-        EntityIdType.WhoToFollow
-      ),
-      DismissFatigueGate(SuggestType.WhoToFollow, DismissInfoFeature)
-    )
-
-    whoToFollowArmCandidatePipelineConfigBuilder.build[ForYouQuery](
-      identifier = WhoToFollowArmCandidatePipelineConfig.identifier,
-      supportedClientParam = Some(EnableWhoToFollowCandidatePipelineParam),
-      alerts = alerts,
-      gates = gates,
-      moduleDisplayTypeBuilder =
-        ParamWhoToFollowModuleDisplayTypeBuilder(WhoToFollowDisplayTypeIdParam),
-      feedbackActionInfoBuilder = Some(homeWhoToFollowFeedbackActionInfoBuilder),
-      excludedUserIdsFeature = Some(WhoToFollowExcludedUserIdsFeature),
-      displayLocationParam = WhoToFollowDisplayLocationParam
-    )
-  }
-
-  private val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(70),
-    HomeMixerAlertConfig.BusinessHours.defaultEmptyResponseRateAlert()
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouWhoToSubscribeCandidatePipelineConfigBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouWhoToSubscribeCandidatePipelineConfigBuilder.scala
deleted file mode 100644
index bd4437b7c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/ForYouWhoToSubscribeCandidatePipelineConfigBuilder.scala
+++ /dev/null
@@ -1,52 +0,0 @@
-package com.twitter.home_mixer.product.for_you
-
-import com.twitter.home_mixer.functional_component.decorator.urt.builder.HomeWhoToSubscribeFeedbackActionInfoBuilder
-import com.twitter.home_mixer.functional_component.gate.DismissFatigueGate
-import com.twitter.home_mixer.functional_component.gate.TimelinesPersistenceStoreLastInjectionGate
-import com.twitter.home_mixer.model.HomeFeatures.DismissInfoFeature
-import com.twitter.home_mixer.model.HomeFeatures.PersistenceEntriesFeature
-import com.twitter.home_mixer.product.for_you.model.ForYouQuery
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.EnableWhoToSubscribeCandidatePipelineParam
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.WhoToSubscribeDisplayTypeIdParam
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.WhoToSubscribeMinInjectionIntervalParam
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.component_library.decorator.urt.builder.timeline_module.ParamWhoToFollowModuleDisplayTypeBuilder
-import com.twitter.product_mixer.component_library.pipeline.candidate.who_to_subscribe_module.WhoToSubscribeCandidatePipelineConfig
-import com.twitter.product_mixer.component_library.pipeline.candidate.who_to_subscribe_module.WhoToSubscribeCandidatePipelineConfigBuilder
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.timelineservice.model.rich.EntityIdType
-import com.twitter.timelineservice.suggests.thriftscala.SuggestType
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ForYouWhoToSubscribeCandidatePipelineConfigBuilder @Inject() (
-  whoToSubscribeCandidatePipelineConfigBuilder: WhoToSubscribeCandidatePipelineConfigBuilder,
-  homeWhoToSubscribeFeedbackActionInfoBuilder: HomeWhoToSubscribeFeedbackActionInfoBuilder) {
-
-  def build(): WhoToSubscribeCandidatePipelineConfig[ForYouQuery] = {
-    val gates: Seq[Gate[ForYouQuery]] = Seq(
-      TimelinesPersistenceStoreLastInjectionGate(
-        WhoToSubscribeMinInjectionIntervalParam,
-        PersistenceEntriesFeature,
-        EntityIdType.WhoToSubscribe
-      ),
-      DismissFatigueGate(SuggestType.WhoToSubscribe, DismissInfoFeature)
-    )
-
-    whoToSubscribeCandidatePipelineConfigBuilder.build[ForYouQuery](
-      identifier = WhoToSubscribeCandidatePipelineConfig.identifier,
-      supportedClientParam = Some(EnableWhoToSubscribeCandidatePipelineParam),
-      alerts = alerts,
-      gates = gates,
-      moduleDisplayTypeBuilder =
-        ParamWhoToFollowModuleDisplayTypeBuilder(WhoToSubscribeDisplayTypeIdParam),
-      feedbackActionInfoBuilder = Some(homeWhoToSubscribeFeedbackActionInfoBuilder)
-    )
-  }
-
-  private val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(70),
-    HomeMixerAlertConfig.BusinessHours.defaultEmptyResponseRateAlert()
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/candidate_source/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/candidate_source/BUILD.bazel
deleted file mode 100644
index 540823800..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/candidate_source/BUILD.bazel
+++ /dev/null
@@ -1,24 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/javax/inject:javax.inject",
-        "finatra/inject/inject-core/src/main/scala",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/model",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/cursor",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/premarshaller/urt",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/candidate_source",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/candidate_source/product_pipeline",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-        "src/thrift/com/twitter/search:earlybird-scala",
-        "stitch/stitch-timelineservice/src/main/scala",
-    ],
-    exports = [
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/candidate_source",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/candidate_source/ScoredTweetsProductCandidateSource.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/candidate_source/ScoredTweetsProductCandidateSource.scala
deleted file mode 100644
index d1daeb93e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/candidate_source/ScoredTweetsProductCandidateSource.scala
+++ /dev/null
@@ -1,174 +0,0 @@
-package com.twitter.home_mixer.product.for_you.candidate_source
-
-import com.google.inject.Provider
-import com.twitter.home_mixer.model.HomeFeatures.ServedTweetIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.TimelineServiceTweetsFeature
-import com.twitter.home_mixer.model.request.HomeMixerRequest
-import com.twitter.home_mixer.model.request.ScoredTweetsProduct
-import com.twitter.home_mixer.model.request.ScoredTweetsProductContext
-import com.twitter.home_mixer.product.for_you.model.ForYouQuery
-import com.twitter.home_mixer.{thriftscala => t}
-import com.twitter.product_mixer.component_library.premarshaller.cursor.UrtCursorSerializer
-import com.twitter.product_mixer.core.functional_component.candidate_source.product_pipeline.ProductPipelineCandidateSource
-import com.twitter.product_mixer.core.functional_component.configapi.ParamsBuilder
-import com.twitter.product_mixer.core.model.common.identifier.CandidateSourceIdentifier
-import com.twitter.product_mixer.core.product.registry.ProductPipelineRegistry
-import com.twitter.timelines.render.{thriftscala => tl}
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-import com.twitter.tweetconvosvc.tweet_ancestor.{thriftscala => ta}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * [[ScoredTweetWithConversationMetadata]]
- **/
-case class ScoredTweetWithConversationMetadata(
-  tweetId: Long,
-  authorId: Long,
-  score: Option[Double] = None,
-  suggestType: Option[st.SuggestType] = None,
-  sourceTweetId: Option[Long] = None,
-  sourceUserId: Option[Long] = None,
-  quotedTweetId: Option[Long] = None,
-  quotedUserId: Option[Long] = None,
-  inReplyToTweetId: Option[Long] = None,
-  inReplyToUserId: Option[Long] = None,
-  directedAtUserId: Option[Long] = None,
-  inNetwork: Option[Boolean] = None,
-  sgsValidLikedByUserIds: Option[Seq[Long]] = None,
-  sgsValidFollowedByUserIds: Option[Seq[Long]] = None,
-  ancestors: Option[Seq[ta.TweetAncestor]] = None,
-  topicId: Option[Long] = None,
-  topicFunctionalityType: Option[tl.TopicContextFunctionalityType] = None,
-  conversationId: Option[Long] = None,
-  conversationFocalTweetId: Option[Long] = None,
-  isReadFromCache: Option[Boolean] = None,
-  streamToKafka: Option[Boolean] = None,
-  exclusiveConversationAuthorId: Option[Long] = None,
-  authorIsBlueVerified: Option[Boolean] = None,
-  authorIsGoldVerified: Option[Boolean] = None,
-  authorIsGrayVerified: Option[Boolean] = None,
-  authorIsLegacyVerified: Option[Boolean] = None,
-  authorIsCreator: Option[Boolean] = None,
-  perspectiveFilteredLikedByUserIds: Option[Seq[Long]] = None)
-
-@Singleton
-class ScoredTweetsProductCandidateSource @Inject() (
-  override val productPipelineRegistry: Provider[ProductPipelineRegistry],
-  override val paramsBuilder: Provider[ParamsBuilder])
-    extends ProductPipelineCandidateSource[
-      ForYouQuery,
-      HomeMixerRequest,
-      t.ScoredTweetsResponse,
-      ScoredTweetWithConversationMetadata
-    ] {
-
-  override val identifier: CandidateSourceIdentifier =
-    CandidateSourceIdentifier("ScoredTweetsProduct")
-
-  private val MaxModuleSize = 3
-  private val MaxAncestorsInConversation = 2
-
-  override def pipelineRequestTransformer(productPipelineQuery: ForYouQuery): HomeMixerRequest = {
-    HomeMixerRequest(
-      clientContext = productPipelineQuery.clientContext,
-      product = ScoredTweetsProduct,
-      productContext = Some(
-        ScoredTweetsProductContext(
-          productPipelineQuery.deviceContext,
-          productPipelineQuery.seenTweetIds,
-          productPipelineQuery.features.map(_.getOrElse(ServedTweetIdsFeature, Seq.empty)),
-          productPipelineQuery.features.map(_.getOrElse(TimelineServiceTweetsFeature, Seq.empty))
-        )),
-      serializedRequestCursor =
-        productPipelineQuery.pipelineCursor.map(UrtCursorSerializer.serializeCursor),
-      maxResults = productPipelineQuery.requestedMaxResults,
-      debugParams = None,
-      homeRequestParam = false
-    )
-  }
-
-  override def productPipelineResultTransformer(
-    productPipelineResult: t.ScoredTweetsResponse
-  ): Seq[ScoredTweetWithConversationMetadata] = {
-    val scoredTweets = productPipelineResult.scoredTweets.flatMap { focalTweet =>
-      val parentTweets = focalTweet.ancestors.getOrElse(Seq.empty).sortBy(-_.tweetId)
-      val (intermediates, root) = parentTweets.splitAt(parentTweets.size - 1)
-      val truncatedIntermediates =
-        intermediates.take(MaxModuleSize - MaxAncestorsInConversation).reverse
-      val rootScoredTweet: Seq[ScoredTweetWithConversationMetadata] = root.map { ancestor =>
-        ScoredTweetWithConversationMetadata(
-          tweetId = ancestor.tweetId,
-          authorId = ancestor.userId,
-          suggestType = focalTweet.suggestType,
-          conversationId = Some(ancestor.tweetId),
-          conversationFocalTweetId = Some(focalTweet.tweetId),
-          exclusiveConversationAuthorId = focalTweet.exclusiveConversationAuthorId
-        )
-      }
-      val conversationId = rootScoredTweet.headOption.map(_.tweetId)
-
-      val tweetsToParents =
-        if (parentTweets.nonEmpty) parentTweets.zip(parentTweets.tail).toMap
-        else Map.empty[ta.TweetAncestor, ta.TweetAncestor]
-
-      val intermediateScoredTweets = truncatedIntermediates.map { ancestor =>
-        ScoredTweetWithConversationMetadata(
-          tweetId = ancestor.tweetId,
-          authorId = ancestor.userId,
-          suggestType = focalTweet.suggestType,
-          inReplyToTweetId = tweetsToParents.get(ancestor).map(_.tweetId),
-          conversationId = conversationId,
-          conversationFocalTweetId = Some(focalTweet.tweetId),
-          exclusiveConversationAuthorId = focalTweet.exclusiveConversationAuthorId
-        )
-      }
-      val parentScoredTweets = rootScoredTweet ++ intermediateScoredTweets
-
-      val conversationFocalTweetId =
-        if (parentScoredTweets.nonEmpty) Some(focalTweet.tweetId) else None
-
-      val focalScoredTweet = ScoredTweetWithConversationMetadata(
-        tweetId = focalTweet.tweetId,
-        authorId = focalTweet.authorId,
-        score = focalTweet.score,
-        suggestType = focalTweet.suggestType,
-        sourceTweetId = focalTweet.sourceTweetId,
-        sourceUserId = focalTweet.sourceUserId,
-        quotedTweetId = focalTweet.quotedTweetId,
-        quotedUserId = focalTweet.quotedUserId,
-        inReplyToTweetId = parentScoredTweets.lastOption.map(_.tweetId),
-        inReplyToUserId = focalTweet.inReplyToUserId,
-        directedAtUserId = focalTweet.directedAtUserId,
-        inNetwork = focalTweet.inNetwork,
-        sgsValidLikedByUserIds = focalTweet.sgsValidLikedByUserIds,
-        sgsValidFollowedByUserIds = focalTweet.sgsValidFollowedByUserIds,
-        topicId = focalTweet.topicId,
-        topicFunctionalityType = focalTweet.topicFunctionalityType,
-        ancestors = focalTweet.ancestors,
-        conversationId = conversationId,
-        conversationFocalTweetId = conversationFocalTweetId,
-        isReadFromCache = focalTweet.isReadFromCache,
-        streamToKafka = focalTweet.streamToKafka,
-        exclusiveConversationAuthorId = focalTweet.exclusiveConversationAuthorId,
-        authorIsBlueVerified = focalTweet.authorMetadata.map(_.blueVerified),
-        authorIsGoldVerified = focalTweet.authorMetadata.map(_.goldVerified),
-        authorIsGrayVerified = focalTweet.authorMetadata.map(_.grayVerified),
-        authorIsLegacyVerified = focalTweet.authorMetadata.map(_.legacyVerified),
-        authorIsCreator = focalTweet.authorMetadata.map(_.creator),
-        perspectiveFilteredLikedByUserIds = focalTweet.perspectiveFilteredLikedByUserIds
-      )
-
-      parentScoredTweets :+ focalScoredTweet
-    }
-
-    val dedupedTweets = scoredTweets.groupBy(_.tweetId).map {
-      case (_, duplicateAncestors) => duplicateAncestors.maxBy(_.score.getOrElse(0.0))
-    }
-
-    // Sort by tweet id to prevent issues with future assumptions of the root being the first
-    // tweet and the focal being the last tweet in a module. The tweets as a whole do not need
-    // to be sorted overall, only the relative order within modules must be kept.
-    dedupedTweets.toSeq.sortBy(_.tweetId)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/feature_hydrator/AuthorEnabledPreviewsFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/feature_hydrator/AuthorEnabledPreviewsFeatureHydrator.scala
deleted file mode 100644
index f93a5041f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/feature_hydrator/AuthorEnabledPreviewsFeatureHydrator.scala
+++ /dev/null
@@ -1,72 +0,0 @@
-package com.twitter.home_mixer.product.for_you.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.AuthorEnabledPreviewsFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.strato.generated.client.audiencerewards.audienceRewardsService.GetCreatorPreferencesOnUserClientColumn
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Hydrates the `AuthorEnabledPreviews` feature for tweets authored by creators by querying the
- * `GetCreatorPreferences` Strato column. This feature corresponds to the `previews_enabled` field of that column.
- * Given a tweet from a creator, this feature indicates whether that creator has enabled previews
- * on their profile.
- */
-@Singleton
-class AuthorEnabledPreviewsFeatureHydrator @Inject() (
-  getCreatorPreferencesOnUserClientColumn: GetCreatorPreferencesOnUserClientColumn)
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("AuthorEnabledPreviews")
-
-  override val features: Set[Feature[_, _]] = Set(AuthorEnabledPreviewsFeature)
-
-  private val fetcher = getCreatorPreferencesOnUserClientColumn.fetcher
-
-  private val DefaultAuthorEnabledPreviewsValue = true
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = {
-    val candidateAuthors = candidates
-      .map(_.features.getOrElse(AuthorIdFeature, None))
-      .toSet
-      .flatten
-
-    // Build a map of creator -> authorEnabledPreviews, then use it to populate candidate features
-    val authorIdToFeatureStitch = Stitch.collect {
-      candidateAuthors
-        .map { author =>
-          val isAuthorEnabledPreviews = fetcher.fetch(author).map {
-              _.v.map(_.previewsEnabled).getOrElse(DefaultAuthorEnabledPreviewsValue)
-          }
-          (author, isAuthorEnabledPreviews)
-        }.toMap
-    }
-
-    authorIdToFeatureStitch.map { authorIdToFeatureMap =>
-      candidates.map {
-        _.features.getOrElse(AuthorIdFeature, None) match {
-          case Some(authorId) => FeatureMapBuilder()
-            .add(AuthorEnabledPreviewsFeature, authorIdToFeatureMap(authorId))
-            .build()
-          case _ => FeatureMapBuilder()
-            .add(AuthorEnabledPreviewsFeature, DefaultAuthorEnabledPreviewsValue)
-            .build()
-        }
-      }
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/feature_hydrator/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/feature_hydrator/BUILD.bazel
deleted file mode 100644
index 87a260b7e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/feature_hydrator/BUILD.bazel
+++ /dev/null
@@ -1,28 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "audience-rewards/thrift/src/main/thrift/common:thrift-scala",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/service",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/candidate/tweet_tweetypie",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/feature_hydrator",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/util",
-        "src/thrift/com/twitter/socialgraph:thrift-scala",
-        "stitch/stitch-core",
-        "stitch/stitch-socialgraph",
-        "stitch/stitch-timelineservice",
-        "strato/config/columns/audiencerewards/audienceRewardsService:audienceRewardsService-strato-client",
-        "strato/src/main/scala/com/twitter/strato/client",
-        "timelinemixer/common/src/main/scala/com/twitter/timelinemixer/clients/feedback",
-        "timelineservice/common/src/main/scala/com/twitter/timelineservice/model",
-        "util/util-core",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/feature_hydrator/FocalTweetFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/feature_hydrator/FocalTweetFeatureHydrator.scala
deleted file mode 100644
index 0270a81ab..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/feature_hydrator/FocalTweetFeatureHydrator.scala
+++ /dev/null
@@ -1,84 +0,0 @@
-package com.twitter.home_mixer.product.for_you.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.ConversationModuleFocalTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.ConversationModuleIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.FocalTweetAuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.FocalTweetInNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.FocalTweetRealNamesFeature
-import com.twitter.home_mixer.model.HomeFeatures.FocalTweetScreenNamesFeature
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.RealNamesFeature
-import com.twitter.home_mixer.model.HomeFeatures.ScreenNamesFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Social context for convo modules is hydrated on the root Tweet but needs info about the focal
- * Tweet (e.g. author) to render the banner. This hydrator copies focal Tweet data into the root.
- */
-@Singleton
-class FocalTweetFeatureHydrator @Inject() ()
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("FocalTweet")
-
-  override val features: Set[Feature[_, _]] = Set(
-    FocalTweetAuthorIdFeature,
-    FocalTweetInNetworkFeature,
-    FocalTweetRealNamesFeature,
-    FocalTweetScreenNamesFeature
-  )
-
-  private val DefaultFeatureMap = FeatureMapBuilder()
-    .add(FocalTweetAuthorIdFeature, None)
-    .add(FocalTweetInNetworkFeature, None)
-    .add(FocalTweetRealNamesFeature, None)
-    .add(FocalTweetScreenNamesFeature, None)
-    .build()
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = {
-    // Build a map of all the focal tweets to their corresponding features
-    val focalTweetIdToFeatureMap = candidates.flatMap { candidate =>
-      val focalTweetId = candidate.features.getOrElse(ConversationModuleFocalTweetIdFeature, None)
-      if (focalTweetId.contains(candidate.candidate.id)) {
-        Some(candidate.candidate.id -> candidate.features)
-      } else None
-    }.toMap
-
-    val updatedFeatureMap = candidates.map { candidate =>
-      val focalTweetId = candidate.features.getOrElse(ConversationModuleFocalTweetIdFeature, None)
-      val conversationId = candidate.features.getOrElse(ConversationModuleIdFeature, None)
-
-      // Check if the candidate is a root tweet and ensure its focal tweet's features are available
-      if (conversationId.contains(candidate.candidate.id)
-        && focalTweetId.exists(focalTweetIdToFeatureMap.contains)) {
-        val featureMap = focalTweetIdToFeatureMap.get(focalTweetId.get).get
-        FeatureMapBuilder()
-          .add(FocalTweetAuthorIdFeature, featureMap.getOrElse(AuthorIdFeature, None))
-          .add(FocalTweetInNetworkFeature, Some(featureMap.getOrElse(InNetworkFeature, true)))
-          .add(
-            FocalTweetRealNamesFeature,
-            Some(featureMap.getOrElse(RealNamesFeature, Map.empty[Long, String])))
-          .add(
-            FocalTweetScreenNamesFeature,
-            Some(featureMap.getOrElse(ScreenNamesFeature, Map.empty[Long, String])))
-          .build()
-      } else DefaultFeatureMap
-    }
-
-    Stitch.value(updatedFeatureMap)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/feature_hydrator/TimelineServiceTweetsQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/feature_hydrator/TimelineServiceTweetsQueryFeatureHydrator.scala
deleted file mode 100644
index e0ae2207e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/feature_hydrator/TimelineServiceTweetsQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,62 +0,0 @@
-package com.twitter.home_mixer.product.for_you.feature_hydrator
-
-import com.twitter.home_mixer.marshaller.timelines.DeviceContextMarshaller
-import com.twitter.home_mixer.model.HomeFeatures.TimelineServiceTweetsFeature
-import com.twitter.home_mixer.model.request.DeviceContext
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.stitch.timelineservice.TimelineService
-import com.twitter.timelineservice.{thriftscala => t}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class TimelineServiceTweetsQueryFeatureHydrator @Inject() (
-  timelineService: TimelineService,
-  deviceContextMarshaller: DeviceContextMarshaller)
-    extends QueryFeatureHydrator[PipelineQuery with HasDeviceContext] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("TimelineServiceTweets")
-
-  override val features: Set[Feature[_, _]] = Set(TimelineServiceTweetsFeature)
-
-  private val MaxTimelineServiceTweets = 200
-
-  override def hydrate(query: PipelineQuery with HasDeviceContext): Stitch[FeatureMap] = {
-    val deviceContext = query.deviceContext.getOrElse(DeviceContext.Empty)
-
-    val timelineQueryOptions = t.TimelineQueryOptions(
-      contextualUserId = query.clientContext.userId,
-      deviceContext = Some(deviceContextMarshaller(deviceContext, query.clientContext))
-    )
-
-    val timelineServiceQuery = t.TimelineQuery(
-      timelineType = t.TimelineType.Home,
-      timelineId = query.getRequiredUserId,
-      maxCount = MaxTimelineServiceTweets.toShort,
-      cursor2 = None,
-      options = Some(timelineQueryOptions),
-      timelineId2 = query.clientContext.userId.map(t.TimelineId(t.TimelineType.Home, _, None)),
-    )
-
-    timelineService.getTimeline(timelineServiceQuery).map { timeline =>
-      val tweets = timeline.entries.collect {
-        case t.TimelineEntry.Tweet(tweet) => tweet.statusId
-      }
-
-      FeatureMapBuilder().add(TimelineServiceTweetsFeature, tweets).build()
-    }
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.7)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/feature_hydrator/TweetPreviewTweetypieCandidateFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/feature_hydrator/TweetPreviewTweetypieCandidateFeatureHydrator.scala
deleted file mode 100644
index 07f3ae0e9..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/feature_hydrator/TweetPreviewTweetypieCandidateFeatureHydrator.scala
+++ /dev/null
@@ -1,72 +0,0 @@
-package com.twitter.home_mixer.product.for_you.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsHydratedFeature
-import com.twitter.home_mixer.model.HomeFeatures.TweetTextFeature
-import com.twitter.product_mixer.component_library.model.candidate.BaseTweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.CandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.spam.rtf.{thriftscala => rtf}
-import com.twitter.stitch.Stitch
-import com.twitter.stitch.tweetypie.{TweetyPie => TweetypieStitchClient}
-import com.twitter.tweetypie.{thriftscala => TP}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class TweetPreviewTweetypieCandidateFeatureHydrator @Inject() (
-  tweetypieStitchClient: TweetypieStitchClient)
-    extends CandidateFeatureHydrator[PipelineQuery, BaseTweetCandidate] {
-
-  private val CoreTweetFields: Set[TP.TweetInclude] = Set[TP.TweetInclude](
-    TP.TweetInclude.TweetFieldId(TP.Tweet.IdField.id),
-    TP.TweetInclude.TweetFieldId(TP.Tweet.CoreDataField.id)
-  )
-
-  private val DefaultFeatureMap = FeatureMapBuilder()
-    .add(TweetTextFeature, None)
-    .add(IsHydratedFeature, false)
-    .add(AuthorIdFeature, None)
-    .build()
-
-  override val features: Set[Feature[_, _]] =
-    Set(TweetTextFeature, IsHydratedFeature, AuthorIdFeature)
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("TweetPreviewTweetypie")
-
-  override def apply(
-    query: PipelineQuery,
-    candidate: BaseTweetCandidate,
-    existingFeatures: FeatureMap
-  ): Stitch[FeatureMap] = {
-    tweetypieStitchClient
-      .getTweetFields(
-        tweetId = candidate.id,
-        options = TP.GetTweetFieldsOptions(
-          tweetIncludes = CoreTweetFields,
-          includeRetweetedTweet = false,
-          includeQuotedTweet = false,
-          visibilityPolicy = TP.TweetVisibilityPolicy.UserVisible,
-          safetyLevel = Some(rtf.SafetyLevel.TimelineHomeTweetPreview),
-          forUserId = query.getOptionalUserId
-        )
-      ).map {
-        case TP.GetTweetFieldsResult(_, TP.TweetFieldsResultState.Found(found), quoteOpt, _) =>
-          val tweetText = found.tweet.coreData.map(_.text)
-          FeatureMapBuilder()
-            .add(TweetTextFeature, tweetText)
-            .add(IsHydratedFeature, true)
-            .add(AuthorIdFeature, found.tweet.coreData.map(_.userId))
-            .build()
-        // If no tweet result found, return default features
-        case _ =>
-          DefaultFeatureMap
-      }
-
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/filter/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/filter/BUILD.bazel
deleted file mode 100644
index 0a875371d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/filter/BUILD.bazel
+++ /dev/null
@@ -1,15 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/filter",
-        "stitch/stitch-core",
-        "timelineservice/common/src/main/scala/com/twitter/timelineservice/model",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/filter/SocialContextFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/filter/SocialContextFilter.scala
deleted file mode 100644
index 5b007969b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/filter/SocialContextFilter.scala
+++ /dev/null
@@ -1,76 +0,0 @@
-package com.twitter.home_mixer.product.for_you.filter
-
-import com.twitter.home_mixer.model.HomeFeatures._
-import com.twitter.home_mixer.product.for_you.param.ForYouParam
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-
-object SocialContextFilter extends Filter[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("SocialContext")
-
-  // Tweets from candidate sources which don't need generic like/follow/topic proof
-  private val AllowedSources: Set[st.SuggestType] = Set(
-    st.SuggestType.RankedListTweet,
-    st.SuggestType.RecommendedTrendTweet,
-    st.SuggestType.MediaTweet
-  )
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[FilterResult[TweetCandidate]] = {
-    val enableIsVerifiedAuthorFilter =
-      query.params(ForYouParam.EnableVerifiedAuthorSocialContextBypassParam)
-
-    val enableTopicSocialContextFilter =
-      query.params(ForYouParam.EnableTopicSocialContextFilterParam)
-
-    val validTweetIds = candidates
-      .filter { candidate =>
-        candidate.features.getOrElse(InNetworkFeature, true) ||
-        candidate.features.getOrElse(SuggestTypeFeature, None).exists(AllowedSources.contains) ||
-        candidate.features.getOrElse(ConversationModuleFocalTweetIdFeature, None).isDefined ||
-        (enableIsVerifiedAuthorFilter && isVerifiedAuthor(candidate.features)) ||
-        hasLikedBySocialContext(candidate.features) ||
-        hasFollowedBySocialContext(candidate.features) ||
-        (enableTopicSocialContextFilter && hasTopicSocialContext(candidate.features))
-      }.map(_.candidate.id).toSet
-
-    val (kept, removed) =
-      candidates.map(_.candidate).partition(candidate => validTweetIds.contains(candidate.id))
-
-    Stitch.value(FilterResult(kept = kept, removed = removed))
-  }
-
-  private def isVerifiedAuthor(candidateFeatures: FeatureMap): Boolean = {
-    candidateFeatures.getOrElse(AuthorIsBlueVerifiedFeature, false) ||
-    candidateFeatures.getOrElse(AuthorIsGoldVerifiedFeature, false) ||
-    candidateFeatures.getOrElse(AuthorIsGrayVerifiedFeature, false) ||
-    candidateFeatures.getOrElse(AuthorIsLegacyVerifiedFeature, false)
-  }
-
-  private def hasLikedBySocialContext(candidateFeatures: FeatureMap): Boolean =
-    candidateFeatures
-      .getOrElse(SGSValidLikedByUserIdsFeature, Seq.empty)
-      .exists(
-        candidateFeatures
-          .getOrElse(PerspectiveFilteredLikedByUserIdsFeature, Seq.empty)
-          .toSet.contains
-      )
-
-  private def hasFollowedBySocialContext(candidateFeatures: FeatureMap): Boolean =
-    candidateFeatures.getOrElse(SGSValidFollowedByUserIdsFeature, Seq.empty).nonEmpty
-
-  private def hasTopicSocialContext(candidateFeatures: FeatureMap): Boolean = {
-    candidateFeatures.getOrElse(TopicIdSocialContextFeature, None).isDefined &&
-    candidateFeatures.getOrElse(TopicContextFunctionalityTypeFeature, None).isDefined
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/filter/TweetPreviewTextFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/filter/TweetPreviewTextFilter.scala
deleted file mode 100644
index 61125fcd3..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/filter/TweetPreviewTextFilter.scala
+++ /dev/null
@@ -1,44 +0,0 @@
-package com.twitter.home_mixer.product.for_you.filter
-
-import com.twitter.home_mixer.model.HomeFeatures.TweetTextFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-object TweetPreviewTextFilter extends Filter[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("TweetPreviewText")
-
-  private val PreviewTextLength = 50
-  private val MinTweetLength = PreviewTextLength * 2
-  private val MaxNewlines = 2
-  private val HttpPrefix = "http://"
-  private val HttpsPrefix = "https://"
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[FilterResult[TweetCandidate]] = {
-
-    val (kept, removed) = candidates
-      .partition { candidate =>
-        val text = candidate.features.get(TweetTextFeature).getOrElse("")
-
-        text.length > MinTweetLength &&
-        text.take(PreviewTextLength).count(_ == '\n') <= MaxNewlines &&
-        !(text.startsWith(HttpPrefix) || text.startsWith(HttpsPrefix))
-      }
-
-    val filterResult = FilterResult(
-      kept = kept.map(_.candidate),
-      removed = removed.map(_.candidate)
-    )
-
-    Stitch.value(filterResult)
-  }
-
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/functional_component/gate/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/functional_component/gate/BUILD.bazel
deleted file mode 100644
index 9a1d186dd..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/functional_component/gate/BUILD.bazel
+++ /dev/null
@@ -1,13 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/model",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/common",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/gate",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/functional_component/gate/PushToHomeRequestGate.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/functional_component/gate/PushToHomeRequestGate.scala
deleted file mode 100644
index 4c9d81021..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/functional_component/gate/PushToHomeRequestGate.scala
+++ /dev/null
@@ -1,16 +0,0 @@
-package com.twitter.home_mixer.product.for_you.functional_component.gate
-
-import com.twitter.home_mixer.product.for_you.model.ForYouQuery
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.model.common.identifier.GateIdentifier
-import com.twitter.stitch.Stitch
-
-/**
- * Continues when the request is a Push-To-Home notification request
- */
-object PushToHomeRequestGate extends Gate[ForYouQuery] {
-  override val identifier: GateIdentifier = GateIdentifier("PushToHomeRequest")
-
-  override def shouldContinue(query: ForYouQuery): Stitch[Boolean] =
-    Stitch.value(query.pushToHomeTweetId.isDefined)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/model/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/model/BUILD.bazel
deleted file mode 100644
index bcf9519f5..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/model/BUILD.bazel
+++ /dev/null
@@ -1,21 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/cursor",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/query/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/pipeline/candidate/flexible_injection_pipeline",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/quality_factor",
-    ],
-    exports = [
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/cursor",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/query/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/pipeline/candidate/flexible_injection_pipeline",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/model/ForYouQuery.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/model/ForYouQuery.scala
deleted file mode 100644
index dda427350..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/model/ForYouQuery.scala
+++ /dev/null
@@ -1,52 +0,0 @@
-package com.twitter.home_mixer.product.for_you.model
-
-import com.twitter.adserver.thriftscala.HomeTimelineType
-import com.twitter.adserver.thriftscala.TimelineRequestParams
-import com.twitter.dspbidder.commons.{thriftscala => dsp}
-import com.twitter.home_mixer.model.HomeAdsQuery
-import com.twitter.home_mixer.model.request.DeviceContext
-import com.twitter.home_mixer.model.request.ForYouProduct
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.home_mixer.model.request.HasSeenTweetIds
-import com.twitter.onboarding.task.service.{thriftscala => ots}
-import com.twitter.product_mixer.component_library.model.cursor.UrtOrderedCursor
-import com.twitter.product_mixer.component_library.pipeline.candidate.flexible_injection_pipeline.transformer.HasFlipInjectionParams
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.marshalling.request._
-import com.twitter.product_mixer.core.pipeline.HasPipelineCursor
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelines.configapi.Params
-
-case class ForYouQuery(
-  override val params: Params,
-  override val clientContext: ClientContext,
-  override val pipelineCursor: Option[UrtOrderedCursor],
-  override val requestedMaxResults: Option[Int],
-  override val debugOptions: Option[DebugOptions],
-  override val features: Option[FeatureMap],
-  override val deviceContext: Option[DeviceContext],
-  override val seenTweetIds: Option[Seq[Long]],
-  override val dspClientContext: Option[dsp.DspClientContext],
-  pushToHomeTweetId: Option[Long])
-    extends PipelineQuery
-    with HasPipelineCursor[UrtOrderedCursor]
-    with HasDeviceContext
-    with HasSeenTweetIds
-    with HasFlipInjectionParams
-    with HomeAdsQuery {
-  override val product: Product = ForYouProduct
-
-  override def withFeatureMap(features: FeatureMap): ForYouQuery =
-    copy(features = Some(features))
-
-  override val timelineRequestParams: Option[TimelineRequestParams] =
-    Some(TimelineRequestParams(homeTimelineType = Some(HomeTimelineType.Home)))
-
-  // Fields below are used for FLIP Injection in Onboarding Task Service (OTS)
-  override val displayLocation: ots.DisplayLocation = ots.DisplayLocation.HomeTimeline
-  override val rankingDisablerWithLatestControlsAvailable: Option[Boolean] = None
-  override val isEmptyState: Option[Boolean] = None
-  override val isFirstRequestAfterSignup: Option[Boolean] = None
-  override val isEndOfTimeline: Option[Boolean] = None
-  override val timelineId: Option[Long] = None
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/model/ForYouTweetsResponse.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/model/ForYouTweetsResponse.scala
deleted file mode 100644
index 68b0d6736..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/model/ForYouTweetsResponse.scala
+++ /dev/null
@@ -1,5 +0,0 @@
-package com.twitter.home_mixer.product.for_you.model
-
-import com.twitter.product_mixer.core.model.marshalling.HasMarshalling
-
-case class ForYouTweetsResponse(tweetCandidates: Seq[Long]) extends HasMarshalling
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/param/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/param/BUILD.bazel
deleted file mode 100644
index a56e3a1fd..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/param/BUILD.bazel
+++ /dev/null
@@ -1,14 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/javax/inject:javax.inject",
-        "configapi/configapi-core/src/main/scala/com/twitter/timelines/configapi",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param/decider",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/decorator/urt",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-        "util/util-core/src/main/scala/com/twitter/conversions",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/param/ForYouParam.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/param/ForYouParam.scala
deleted file mode 100644
index 5d117199f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/param/ForYouParam.scala
+++ /dev/null
@@ -1,215 +0,0 @@
-package com.twitter.home_mixer.product.for_you.param
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.param.decider.DeciderKey
-import com.twitter.product_mixer.component_library.decorator.urt.builder.timeline_module.WhoToFollowModuleDisplayType
-import com.twitter.timelines.configapi.DurationConversion
-import com.twitter.timelines.configapi.FSBoundedParam
-import com.twitter.timelines.configapi.FSEnumParam
-import com.twitter.timelines.configapi.FSParam
-import com.twitter.timelines.configapi.HasDurationConversion
-import com.twitter.timelines.configapi.decider.BooleanDeciderParam
-import com.twitter.util.Duration
-
-object ForYouParam {
-  val SupportedClientFSName = "for_you_supported_client"
-
-  object EnableTopicSocialContextFilterParam
-      extends FSParam[Boolean](
-        name = "for_you_enable_topic_social_context_filter",
-        default = true
-      )
-
-  object EnableVerifiedAuthorSocialContextBypassParam
-      extends FSParam[Boolean](
-        name = "for_you_enable_verified_author_social_context_bypass",
-        default = true
-      )
-
-  object EnableTimelineScorerCandidatePipelineParam
-      extends FSParam[Boolean](
-        name = "for_you_enable_timeline_scorer_candidate_pipeline",
-        default = false
-      )
-
-  object EnableScoredTweetsCandidatePipelineParam
-      extends BooleanDeciderParam(DeciderKey.EnableForYouScoredTweetsCandidatePipeline)
-
-  object EnableWhoToFollowCandidatePipelineParam
-      extends FSParam[Boolean](
-        name = "for_you_enable_who_to_follow",
-        default = true
-      )
-
-  object EnableWhoToSubscribeCandidatePipelineParam
-      extends FSParam[Boolean](
-        name = "for_you_enable_who_to_subscribe",
-        default = true
-      )
-
-  object EnableTweetPreviewsCandidatePipelineParam
-      extends FSParam[Boolean](
-        name = "for_you_enable_tweet_previews_candidate_pipeline",
-        default = true
-      )
-
-  object EnablePushToHomeMixerPipelineParam
-      extends FSParam[Boolean](
-        name = "for_you_enable_push_to_home_mixer_pipeline",
-        default = false
-      )
-
-  object EnableScoredTweetsMixerPipelineParam
-      extends FSParam[Boolean](
-        name = "for_you_enable_scored_tweets_mixer_pipeline",
-        default = true
-      )
-
-  object ServerMaxResultsParam
-      extends FSBoundedParam[Int](
-        name = "for_you_server_max_results",
-        default = 35,
-        min = 1,
-        max = 500
-      )
-
-  object AdsNumOrganicItemsParam
-      extends FSBoundedParam[Int](
-        name = "for_you_ads_num_organic_items",
-        default = 35,
-        min = 1,
-        max = 100
-      )
-
-  object WhoToFollowPositionParam
-      extends FSBoundedParam[Int](
-        name = "for_you_who_to_follow_position",
-        default = 5,
-        min = 0,
-        max = 99
-      )
-
-  object WhoToFollowMinInjectionIntervalParam
-      extends FSBoundedParam[Duration](
-        "for_you_who_to_follow_min_injection_interval_in_minutes",
-        default = 1800.minutes,
-        min = 0.minutes,
-        max = 6000.minutes)
-      with HasDurationConversion {
-    override val durationConversion: DurationConversion = DurationConversion.FromMinutes
-  }
-
-  object WhoToFollowDisplayTypeIdParam
-      extends FSEnumParam[WhoToFollowModuleDisplayType.type](
-        name = "for_you_enable_who_to_follow_display_type_id",
-        default = WhoToFollowModuleDisplayType.Vertical,
-        enum = WhoToFollowModuleDisplayType
-      )
-
-  object WhoToFollowDisplayLocationParam
-      extends FSParam[String](
-        name = "for_you_who_to_follow_display_location",
-        default = "timeline"
-      )
-
-  object WhoToSubscribePositionParam
-      extends FSBoundedParam[Int](
-        name = "for_you_who_to_subscribe_position",
-        default = 7,
-        min = 0,
-        max = 99
-      )
-
-  object WhoToSubscribeMinInjectionIntervalParam
-      extends FSBoundedParam[Duration](
-        "for_you_who_to_subscribe_min_injection_interval_in_minutes",
-        default = 1800.minutes,
-        min = 0.minutes,
-        max = 6000.minutes)
-      with HasDurationConversion {
-    override val durationConversion: DurationConversion = DurationConversion.FromMinutes
-  }
-
-  object WhoToSubscribeDisplayTypeIdParam
-      extends FSEnumParam[WhoToFollowModuleDisplayType.type](
-        name = "for_you_enable_who_to_subscribe_display_type_id",
-        default = WhoToFollowModuleDisplayType.Vertical,
-        enum = WhoToFollowModuleDisplayType
-      )
-
-  object TweetPreviewsPositionParam
-      extends FSBoundedParam[Int](
-        name = "for_you_tweet_previews_position",
-        default = 3,
-        min = 0,
-        max = 99
-      )
-
-  object TweetPreviewsMinInjectionIntervalParam
-      extends FSBoundedParam[Duration](
-        "for_you_tweet_previews_min_injection_interval_in_minutes",
-        default = 2.hours,
-        min = 0.minutes,
-        max = 600.minutes)
-      with HasDurationConversion {
-    override val durationConversion: DurationConversion = DurationConversion.FromMinutes
-  }
-
-  object TweetPreviewsMaxCandidatesParam
-      extends FSBoundedParam[Int](
-        name = "for_you_tweet_previews_max_candidates",
-        default = 1,
-        min = 0,
-        // NOTE: previews are injected at a fixed position, so max candidates = 1
-        // to avoid bunching of previews.
-        max = 1
-      )
-
-  object EnableFlipInjectionModuleCandidatePipelineParam
-      extends FSParam[Boolean](
-        name = "for_you_enable_flip_inline_injection_module",
-        default = true
-      )
-
-  object FlipInlineInjectionModulePosition
-      extends FSBoundedParam[Int](
-        name = "for_you_flip_inline_injection_module_position",
-        default = 0,
-        min = 0,
-        max = 1000
-      )
-
-  object ClearCacheOnPtr {
-    object EnableParam
-        extends FSParam[Boolean](
-          name = "for_you_clear_cache_ptr_enable",
-          default = false
-        )
-
-    case object MinEntriesParam
-        extends FSBoundedParam[Int](
-          name = "for_you_clear_cache_ptr_min_entries",
-          default = 10,
-          min = 0,
-          max = 35
-        )
-  }
-
-  object EnableClearCacheOnPushToHome
-      extends FSParam[Boolean](
-        name = "for_you_enable_clear_cache_push_to_home",
-        default = false
-      )
-
-  object EnableServedCandidateKafkaPublishingParam
-      extends FSParam[Boolean](
-        name = "for_you_enable_served_candidate_kafka_publishing",
-        default = true
-      )
-
-  object ExperimentStatsParam
-      extends FSParam[String](
-        name = "for_you_experiment_stats",
-        default = ""
-      )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/param/ForYouParamConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/param/ForYouParamConfig.scala
deleted file mode 100644
index 001ee57ad..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/param/ForYouParamConfig.scala
+++ /dev/null
@@ -1,60 +0,0 @@
-package com.twitter.home_mixer.product.for_you.param
-
-import com.twitter.home_mixer.param.decider.DeciderKey
-import com.twitter.home_mixer.product.for_you.param.ForYouParam._
-import com.twitter.product_mixer.core.product.ProductParamConfig
-import com.twitter.servo.decider.DeciderKeyName
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ForYouParamConfig @Inject() () extends ProductParamConfig {
-  override val enabledDeciderKey: DeciderKeyName = DeciderKey.EnableForYouProduct
-  override val supportedClientFSName: String = SupportedClientFSName
-
-  override val booleanDeciderOverrides = Seq(
-    EnableScoredTweetsCandidatePipelineParam
-  )
-
-  override val booleanFSOverrides = Seq(
-    ClearCacheOnPtr.EnableParam,
-    EnableFlipInjectionModuleCandidatePipelineParam,
-    EnablePushToHomeMixerPipelineParam,
-    EnableScoredTweetsMixerPipelineParam,
-    EnableServedCandidateKafkaPublishingParam,
-    EnableTimelineScorerCandidatePipelineParam,
-    EnableTopicSocialContextFilterParam,
-    EnableVerifiedAuthorSocialContextBypassParam,
-    EnableWhoToFollowCandidatePipelineParam,
-    EnableWhoToSubscribeCandidatePipelineParam,
-    EnableTweetPreviewsCandidatePipelineParam,
-    EnableClearCacheOnPushToHome
-  )
-
-  override val boundedIntFSOverrides = Seq(
-    AdsNumOrganicItemsParam,
-    ClearCacheOnPtr.MinEntriesParam,
-    FlipInlineInjectionModulePosition,
-    ServerMaxResultsParam,
-    WhoToFollowPositionParam,
-    WhoToSubscribePositionParam,
-    TweetPreviewsPositionParam,
-    TweetPreviewsMaxCandidatesParam
-  )
-
-  override val stringFSOverrides = Seq(
-    WhoToFollowDisplayLocationParam,
-    ExperimentStatsParam
-  )
-
-  override val boundedDurationFSOverrides = Seq(
-    WhoToFollowMinInjectionIntervalParam,
-    WhoToSubscribeMinInjectionIntervalParam,
-    TweetPreviewsMinInjectionIntervalParam
-  )
-
-  override val enumFSOverrides = Seq(
-    WhoToFollowDisplayTypeIdParam,
-    WhoToSubscribeDisplayTypeIdParam
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/query_transformer/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/query_transformer/BUILD.bazel
deleted file mode 100644
index 17e99c46c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/query_transformer/BUILD.bazel
+++ /dev/null
@@ -1,16 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/javax/inject:javax.inject",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/social_graph",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/candidate",
-        "src/java/com/twitter/search/common/schema/earlybird",
-        "src/java/com/twitter/search/queryparser/query:core-query-nodes",
-        "src/java/com/twitter/search/queryparser/query/search:search-query-nodes",
-        "src/thrift/com/twitter/search:earlybird-scala",
-        "src/thrift/com/twitter/socialgraph:thrift-scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/query_transformer/TweetPreviewsQueryTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/query_transformer/TweetPreviewsQueryTransformer.scala
deleted file mode 100644
index 41940b823..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/query_transformer/TweetPreviewsQueryTransformer.scala
+++ /dev/null
@@ -1,92 +0,0 @@
-package com.twitter.home_mixer.product.for_you.query_transformer
-
-import com.twitter.conversions.DurationOps.richDurationFromInt
-import com.twitter.finagle.thrift.ClientId
-import com.twitter.finagle.tracing.Trace
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.PreviewCreatorsFeature
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.search.common.ranking.{thriftscala => scr}
-import com.twitter.search.common.schema.earlybird.EarlybirdFieldConstants.EarlybirdFieldConstant
-import com.twitter.search.earlybird.{thriftscala => t}
-import com.twitter.search.queryparser.query.Conjunction
-import com.twitter.search.queryparser.query.Query
-import com.twitter.search.queryparser.query.search.SearchOperator
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class TweetPreviewsQueryTransformer @Inject() (clientId: ClientId)
-    extends CandidatePipelineQueryTransformer[PipelineQuery, t.EarlybirdRequest] {
-
-  private val MaxPreviewTweets = 200
-  private val EarlybirdRelevanceTensorflowModel = "timelines_rectweet_replica"
-  private val SinceDuration = 7.days
-
-  val MetadataOptions = t.ThriftSearchResultMetadataOptions(
-    getReferencedTweetAuthorId = true,
-    getFromUserId = true
-  )
-
-  override def transform(query: PipelineQuery): t.EarlybirdRequest = {
-    val candidatePreviewCreatorIds =
-      query.features.map(_.get(PreviewCreatorsFeature)).getOrElse(Seq.empty)
-
-    val searchQuery = new Conjunction(
-      // Include subscriber only (aka exclusive) Tweets
-      new SearchOperator.Builder()
-        .setType(SearchOperator.Type.FILTER)
-        .addOperand(EarlybirdFieldConstant.EXCLUSIVE_FILTER_TERM)
-        .build(),
-      // Include only original Tweets
-      new SearchOperator.Builder()
-        .setType(SearchOperator.Type.FILTER)
-        .addOperand(EarlybirdFieldConstant.NATIVE_RETWEETS_FILTER_TERM)
-        .setOccur(Query.Occur.MUST_NOT)
-        .build(),
-      new SearchOperator.Builder()
-        .setType(SearchOperator.Type.FILTER)
-        .addOperand(EarlybirdFieldConstant.REPLIES_FILTER_TERM)
-        .setOccur(Query.Occur.MUST_NOT)
-        .build(),
-      new SearchOperator.Builder()
-        .setType(SearchOperator.Type.FILTER)
-        .addOperand(EarlybirdFieldConstant.QUOTE_FILTER_TERM)
-        .setOccur(Query.Occur.MUST_NOT)
-        .build(),
-      new SearchOperator(SearchOperator.Type.SINCE_TIME, SinceDuration.ago.inSeconds.toString)
-    )
-
-    t.EarlybirdRequest(
-      searchQuery = t.ThriftSearchQuery(
-        serializedQuery = Some(searchQuery.serialize),
-        fromUserIDFilter64 = Some(candidatePreviewCreatorIds),
-        numResults = MaxPreviewTweets,
-        rankingMode = t.ThriftSearchRankingMode.Relevance,
-        relevanceOptions = Some(
-          t.ThriftSearchRelevanceOptions(
-            filterDups = true,
-            keepDupWithHigherScore = true,
-            proximityScoring = true,
-            maxConsecutiveSameUser = Some(5),
-            rankingParams = Some(
-              scr.ThriftRankingParams(
-                `type` = Some(scr.ThriftScoringFunctionType.TensorflowBased),
-                selectedTensorflowModel = Some(EarlybirdRelevanceTensorflowModel),
-                minScore = -1.0e100,
-                applyBoosts = false,
-              )
-            ),
-          ),
-        ),
-        resultMetadataOptions = Some(MetadataOptions),
-        searcherId = query.getOptionalUserId,
-      ),
-      getOlderResults = Some(true), // needed for archive access to older tweets
-      clientRequestID = Some(s"${Trace.id.traceId}"),
-      followedUserIds = Some(candidatePreviewCreatorIds.toSeq),
-      numResultsToReturnAtRoot = Some(MaxPreviewTweets),
-      clientId = Some(clientId.name),
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/response_transformer/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/response_transformer/BUILD.bazel
deleted file mode 100644
index cf629b665..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/response_transformer/BUILD.bazel
+++ /dev/null
@@ -1,13 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/javax/inject:javax.inject",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/candidate",
-        "src/java/com/twitter/search/common/schema/earlybird",
-        "src/thrift/com/twitter/search:earlybird-scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/response_transformer/TweetPreviewResponseFeatureTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/response_transformer/TweetPreviewResponseFeatureTransformer.scala
deleted file mode 100644
index 8b783db38..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/response_transformer/TweetPreviewResponseFeatureTransformer.scala
+++ /dev/null
@@ -1,32 +0,0 @@
-package com.twitter.home_mixer.product.for_you.response_transformer
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsTweetPreviewFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-import com.twitter.search.earlybird.{thriftscala => eb}
-
-object TweetPreviewResponseFeatureTransformer
-    extends CandidateFeatureTransformer[eb.ThriftSearchResult] {
-
-  override val identifier: TransformerIdentifier =
-    TransformerIdentifier("TweetPreviewResponse")
-
-  override val features: Set[Feature[_, _]] =
-    Set(AuthorIdFeature, IsTweetPreviewFeature, SuggestTypeFeature)
-
-  def transform(
-    input: eb.ThriftSearchResult
-  ): FeatureMap = {
-    FeatureMapBuilder()
-      .add(IsTweetPreviewFeature, true)
-      .add(SuggestTypeFeature, Some(st.SuggestType.TweetPreview))
-      .add(AuthorIdFeature, input.metadata.map(_.fromUserId))
-      .build()
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/scorer/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/scorer/BUILD.bazel
deleted file mode 100644
index c320c8838..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/scorer/BUILD.bazel
+++ /dev/null
@@ -1,10 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "timelineservice/common:model",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/BUILD.bazel
deleted file mode 100644
index 90faf3d45..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/BUILD.bazel
+++ /dev/null
@@ -1,24 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/service",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "kafka/finagle-kafka/finatra-kafka/src/main/scala",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/side_effect",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-        "src/scala/com/twitter/timelines/prediction/common/adapters",
-        "src/scala/com/twitter/timelines/prediction/features/common",
-        "src/thrift/com/twitter/timelines/served_candidates_logging:served_candidates_logging-scala",
-        "src/thrift/com/twitter/timelines/suggests/common:poly_data_record-java",
-        "timelines/ml:kafka",
-        "timelines/ml/cont_train/common/client/src/main/scala/com/twitter/timelines/ml/cont_train/common/client/kafka",
-        "timelines/ml/cont_train/common/domain/src/main/scala/com/twitter/timelines/ml/cont_train/common/domain/non_scalding",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/ServedCandidateFeatureKeysKafkaSideEffect.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/ServedCandidateFeatureKeysKafkaSideEffect.scala
deleted file mode 100644
index bfa7dd52e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/ServedCandidateFeatureKeysKafkaSideEffect.scala
+++ /dev/null
@@ -1,112 +0,0 @@
-package com.twitter.home_mixer.product.for_you.side_effect
-
-import com.twitter.home_mixer.model.HomeFeatures.CandidateSourceIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsReadFromCacheFeature
-import com.twitter.home_mixer.model.HomeFeatures.PredictionRequestIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.ServedIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.ServedRequestIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.EnableServedCandidateKafkaPublishingParam
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.component_library.side_effect.KafkaPublishingSideEffect
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.identifier
-import com.twitter.product_mixer.core.model.common.identifier.SideEffectIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.model.marshalling.response.urt.Timeline
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelines.ml.cont_train.common.domain.non_scalding.ServedCandidateFeatureKeysAdapter
-import com.twitter.timelines.ml.cont_train.common.domain.non_scalding.ServedCandidateFeatureKeysFields
-import com.twitter.timelines.ml.kafka.serde.CandidateFeatureKeySerde
-import com.twitter.timelines.ml.kafka.serde.TBaseSerde
-import com.twitter.timelines.served_candidates_logging.{thriftscala => sc}
-import com.twitter.timelines.suggests.common.poly_data_record.{thriftjava => pldr}
-import com.twitter.timelineservice.suggests.{thriftscala => tls}
-import org.apache.kafka.clients.producer.ProducerRecord
-import org.apache.kafka.common.serialization.Serializer
-import scala.collection.JavaConverters._
-
-/**
- * Pipeline side-effect that publishes candidate keys to a Kafka topic.
- */
-class ServedCandidateFeatureKeysKafkaSideEffect(
-  topic: String,
-  sourceIdentifiers: Set[identifier.CandidatePipelineIdentifier])
-    extends KafkaPublishingSideEffect[
-      sc.CandidateFeatureKey,
-      pldr.PolyDataRecord,
-      PipelineQuery,
-      Timeline
-    ]
-    with PipelineResultSideEffect.Conditionally[PipelineQuery, Timeline] {
-
-  import ServedCandidateKafkaSideEffect._
-
-  override val identifier: SideEffectIdentifier = SideEffectIdentifier("ServedCandidateFeatureKeys")
-
-  override def onlyIf(
-    query: PipelineQuery,
-    selectedCandidates: Seq[CandidateWithDetails],
-    remainingCandidates: Seq[CandidateWithDetails],
-    droppedCandidates: Seq[CandidateWithDetails],
-    response: Timeline
-  ): Boolean = query.params.getBoolean(EnableServedCandidateKafkaPublishingParam)
-
-  override val bootstrapServer: String = "/s/kafka/timeline:kafka-tls"
-
-  override val keySerde: Serializer[sc.CandidateFeatureKey] =
-    CandidateFeatureKeySerde().serializer()
-
-  override val valueSerde: Serializer[pldr.PolyDataRecord] =
-    TBaseSerde.Thrift[pldr.PolyDataRecord]().serializer
-
-  override val clientId: String = "home_mixer_served_candidate_feature_keys_producer"
-
-  override def buildRecords(
-    query: PipelineQuery,
-    selectedCandidates: Seq[CandidateWithDetails],
-    remainingCandidates: Seq[CandidateWithDetails],
-    droppedCandidates: Seq[CandidateWithDetails],
-    response: Timeline
-  ): Seq[ProducerRecord[sc.CandidateFeatureKey, pldr.PolyDataRecord]] = {
-    val servedRequestIdOpt =
-      query.features.getOrElse(FeatureMap.empty).getOrElse(ServedRequestIdFeature, None)
-
-    extractCandidates(query, selectedCandidates, sourceIdentifiers).map { candidate =>
-      val isReadFromCache = candidate.features.getOrElse(IsReadFromCacheFeature, false)
-      val servedId = candidate.features.get(ServedIdFeature).get
-
-      val key = sc.CandidateFeatureKey(
-        tweetId = candidate.candidateIdLong,
-        viewerId = query.getRequiredUserId,
-        servedId = servedId)
-
-      val record =
-        ServedCandidateFeatureKeysAdapter
-          .adaptToDataRecords(
-            ServedCandidateFeatureKeysFields(
-              candidateTweetSourceId = candidate.features
-                .getOrElse(CandidateSourceIdFeature, None).map(_.value.toLong).getOrElse(2L),
-              predictionRequestId =
-                candidate.features.getOrElse(PredictionRequestIdFeature, None).get,
-              servedRequestIdOpt = if (isReadFromCache) servedRequestIdOpt else None,
-              servedId = servedId,
-              injectionModuleName = candidate.getClass.getSimpleName,
-              viewerFollowsOriginalAuthor =
-                Some(candidate.features.getOrElse(InNetworkFeature, true)),
-              suggestType = candidate.features
-                .getOrElse(SuggestTypeFeature, None).getOrElse(tls.SuggestType.RankedOrganicTweet),
-              finalPositionIndex = Some(candidate.sourcePosition),
-              isReadFromCache = isReadFromCache
-            )).asScala.head
-
-      new ProducerRecord(topic, key, pldr.PolyDataRecord.dataRecord(record))
-    }
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(98.5)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/ServedCandidateFeatureKeysKafkaSideEffectBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/ServedCandidateFeatureKeysKafkaSideEffectBuilder.scala
deleted file mode 100644
index 5e4164276..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/ServedCandidateFeatureKeysKafkaSideEffectBuilder.scala
+++ /dev/null
@@ -1,20 +0,0 @@
-package com.twitter.home_mixer.product.for_you.side_effect
-
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class ServedCandidateFeatureKeysKafkaSideEffectBuilder @Inject() (
-  injectedServiceIdentifier: ServiceIdentifier) {
-  def build(
-    sourceIdentifiers: Set[CandidatePipelineIdentifier]
-  ): ServedCandidateFeatureKeysKafkaSideEffect = {
-    val topic = injectedServiceIdentifier.environment.toLowerCase match {
-      case "prod" => "tq_ct_served_candidate_feature_keys"
-      case _ => "tq_ct_served_candidate_feature_keys_staging"
-    }
-    new ServedCandidateFeatureKeysKafkaSideEffect(topic, sourceIdentifiers)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/ServedCandidateKafkaSideEffect.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/ServedCandidateKafkaSideEffect.scala
deleted file mode 100644
index 7da751764..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/ServedCandidateKafkaSideEffect.scala
+++ /dev/null
@@ -1,50 +0,0 @@
-package com.twitter.home_mixer.product.for_you.side_effect
-
-import com.twitter.home_mixer.model.HomeFeatures.IsReadFromCacheFeature
-import com.twitter.home_mixer.model.HomeFeatures.PredictionRequestIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.ServedIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.ServedRequestIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.StreamToKafkaFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.model.common.presentation.ItemCandidateWithDetails
-import com.twitter.product_mixer.core.model.common.presentation.ModuleCandidateWithDetails
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-
-object ServedCandidateKafkaSideEffect {
-
-  def extractCandidates(
-    query: PipelineQuery,
-    selectedCandidates: Seq[CandidateWithDetails],
-    sourceIdentifiers: Set[CandidatePipelineIdentifier]
-  ): Seq[ItemCandidateWithDetails] = {
-    val servedRequestIdOpt =
-      query.features.getOrElse(FeatureMap.empty).getOrElse(ServedRequestIdFeature, None)
-
-    selectedCandidates.iterator
-      .filter(candidate => sourceIdentifiers.contains(candidate.source))
-      .flatMap {
-        case item: ItemCandidateWithDetails => Seq(item)
-        case module: ModuleCandidateWithDetails => module.candidates
-      }
-      .filter(candidate => candidate.features.getOrElse(StreamToKafkaFeature, false))
-      .map { candidate =>
-        val servedId =
-          if (candidate.features.getOrElse(IsReadFromCacheFeature, false) &&
-            servedRequestIdOpt.nonEmpty)
-            servedRequestIdOpt
-          else
-            candidate.features.getOrElse(PredictionRequestIdFeature, None)
-
-        candidate.copy(features = candidate.features + (ServedIdFeature, servedId))
-      }.toSeq
-      // deduplicate by (tweetId, userId, servedId)
-      .groupBy { candidate =>
-        (
-          candidate.candidateIdLong,
-          query.getRequiredUserId,
-          candidate.features.getOrElse(ServedIdFeature, None))
-      }.values.map(_.head).toSeq
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/ServedCandidateKeysKafkaSideEffect.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/ServedCandidateKeysKafkaSideEffect.scala
deleted file mode 100644
index aa1247fbb..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/ServedCandidateKeysKafkaSideEffect.scala
+++ /dev/null
@@ -1,111 +0,0 @@
-package com.twitter.home_mixer.product.for_you.side_effect
-
-import com.twitter.home_mixer.model.HomeFeatures.IsReadFromCacheFeature
-import com.twitter.home_mixer.model.HomeFeatures.PredictionRequestIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.ServedIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.ServedRequestIdFeature
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.EnableServedCandidateKafkaPublishingParam
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.ml.api.DataRecord
-import com.twitter.ml.api.util.SRichDataRecord
-import com.twitter.product_mixer.component_library.side_effect.KafkaPublishingSideEffect
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.SideEffectIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.model.marshalling.response.urt.Timeline
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelines.ml.cont_train.common.domain.non_scalding.DataRecordLoggingRelatedFeatures.tlmServedKeysFeatureContext
-import com.twitter.timelines.ml.kafka.serde.ServedCandidateKeySerde
-import com.twitter.timelines.ml.kafka.serde.TBaseSerde
-import com.twitter.timelines.prediction.features.common.TimelinesSharedFeatures
-import com.twitter.timelines.served_candidates_logging.{thriftscala => sc}
-import com.twitter.timelines.suggests.common.poly_data_record.{thriftjava => pldr}
-import com.twitter.util.Time
-import org.apache.kafka.clients.producer.ProducerRecord
-import org.apache.kafka.common.serialization.Serializer
-
-/**
- * Pipeline side-effect that publishes candidate keys to a Kafka topic.
- */
-class ServedCandidateKeysKafkaSideEffect(
-  topic: String,
-  sourceIdentifiers: Set[CandidatePipelineIdentifier])
-    extends KafkaPublishingSideEffect[
-      sc.ServedCandidateKey,
-      pldr.PolyDataRecord,
-      PipelineQuery,
-      Timeline
-    ]
-    with PipelineResultSideEffect.Conditionally[PipelineQuery, Timeline] {
-
-  import ServedCandidateKafkaSideEffect._
-
-  override val identifier: SideEffectIdentifier = SideEffectIdentifier("ServedCandidateKeys")
-
-  override def onlyIf(
-    query: PipelineQuery,
-    selectedCandidates: Seq[CandidateWithDetails],
-    remainingCandidates: Seq[CandidateWithDetails],
-    droppedCandidates: Seq[CandidateWithDetails],
-    response: Timeline
-  ): Boolean = query.params.getBoolean(EnableServedCandidateKafkaPublishingParam)
-
-  override val bootstrapServer: String = "/s/kafka/timeline:kafka-tls"
-
-  override val keySerde: Serializer[sc.ServedCandidateKey] = ServedCandidateKeySerde.serializer()
-
-  override val valueSerde: Serializer[pldr.PolyDataRecord] =
-    TBaseSerde.Thrift[pldr.PolyDataRecord]().serializer
-
-  override val clientId: String = "home_mixer_served_candidate_keys_producer"
-
-  override def buildRecords(
-    query: PipelineQuery,
-    selectedCandidates: Seq[CandidateWithDetails],
-    remainingCandidates: Seq[CandidateWithDetails],
-    droppedCandidates: Seq[CandidateWithDetails],
-    response: Timeline
-  ): Seq[ProducerRecord[sc.ServedCandidateKey, pldr.PolyDataRecord]] = {
-    val servedTimestamp = Time.now.inMilliseconds
-    val servedRequestIdOpt =
-      query.features.getOrElse(FeatureMap.empty).getOrElse(ServedRequestIdFeature, None)
-
-    extractCandidates(query, selectedCandidates, sourceIdentifiers).collect {
-      // Only publish non-cached tweets to the ServedCandidateKey topic
-      case candidate if !candidate.features.getOrElse(IsReadFromCacheFeature, false) =>
-        val key = sc.ServedCandidateKey(
-          tweetId = candidate.candidateIdLong,
-          viewerId = query.getRequiredUserId,
-          servedId = -1L
-        )
-
-        val record = SRichDataRecord(new DataRecord, tlmServedKeysFeatureContext)
-        record.setFeatureValueFromOption(
-          TimelinesSharedFeatures.PREDICTION_REQUEST_ID,
-          candidate.features.getOrElse(PredictionRequestIdFeature, None)
-        )
-        record
-          .setFeatureValueFromOption(TimelinesSharedFeatures.SERVED_REQUEST_ID, servedRequestIdOpt)
-        record.setFeatureValueFromOption(
-          TimelinesSharedFeatures.SERVED_ID,
-          candidate.features.getOrElse(ServedIdFeature, None)
-        )
-        record.setFeatureValueFromOption(
-          TimelinesSharedFeatures.INJECTION_TYPE,
-          record.getFeatureValueOpt(TimelinesSharedFeatures.INJECTION_TYPE))
-        record.setFeatureValue(
-          TimelinesSharedFeatures.SERVED_TIMESTAMP,
-          servedTimestamp
-        )
-        record.record.dropUnknownFeatures()
-
-        new ProducerRecord(topic, key, pldr.PolyDataRecord.dataRecord(record.getRecord))
-    }
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(98.5)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/ServedCandidateKeysKafkaSideEffectBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/ServedCandidateKeysKafkaSideEffectBuilder.scala
deleted file mode 100644
index 31ee389b9..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/ServedCandidateKeysKafkaSideEffectBuilder.scala
+++ /dev/null
@@ -1,20 +0,0 @@
-package com.twitter.home_mixer.product.for_you.side_effect
-
-import com.twitter.finagle.mtls.authentication.ServiceIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class ServedCandidateKeysKafkaSideEffectBuilder @Inject() (
-  injectedServiceIdentifier: ServiceIdentifier) {
-  def build(
-    sourceIdentifiers: Set[CandidatePipelineIdentifier]
-  ): ServedCandidateKeysKafkaSideEffect = {
-    val topic = injectedServiceIdentifier.environment.toLowerCase match {
-      case "prod" => "tq_ct_served_candidate_keys"
-      case _ => "tq_ct_served_candidate_keys_staging"
-    }
-    new ServedCandidateKeysKafkaSideEffect(topic, sourceIdentifiers)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/ServedStatsSideEffect.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/ServedStatsSideEffect.scala
deleted file mode 100644
index be7c2a533..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/for_you/side_effect/ServedStatsSideEffect.scala
+++ /dev/null
@@ -1,90 +0,0 @@
-package com.twitter.home_mixer.product.for_you.side_effect
-
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.home_mixer.product.for_you.param.ForYouParam.ExperimentStatsParam
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.identifier.SideEffectIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.model.common.presentation.ItemCandidateWithDetails
-import com.twitter.product_mixer.core.model.marshalling.response.urt.Timeline
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ServedStatsSideEffect @Inject() (statsReceiver: StatsReceiver)
-    extends PipelineResultSideEffect[PipelineQuery, Timeline] {
-
-  override val identifier: SideEffectIdentifier = SideEffectIdentifier("ServedStats")
-
-  private val baseStatsReceiver = statsReceiver.scope(identifier.toString)
-  private val suggestTypeStatsReceiver = baseStatsReceiver.scope("SuggestType")
-  private val responseSizeStatsReceiver = baseStatsReceiver.scope("ResponseSize")
-  private val contentBalanceStatsReceiver = baseStatsReceiver.scope("ContentBalance")
-
-  private val inNetworkStatsReceiver = contentBalanceStatsReceiver.scope("InNetwork")
-  private val outOfNetworkStatsReceiver = contentBalanceStatsReceiver.scope("OutOfNetwork")
-  private val replyStatsReceiver = contentBalanceStatsReceiver.scope("Reply")
-  private val originalStatsReceiver = contentBalanceStatsReceiver.scope("Original")
-
-  private val emptyStatsReceiver = responseSizeStatsReceiver.scope("Empty")
-  private val lessThan5StatsReceiver = responseSizeStatsReceiver.scope("LessThan5")
-  private val lessThan10StatsReceiver = responseSizeStatsReceiver.scope("LessThan10")
-
-  override def apply(
-    inputs: PipelineResultSideEffect.Inputs[PipelineQuery, Timeline]
-  ): Stitch[Unit] = {
-    val tweetCandidates = CandidatesUtil
-      .getItemCandidates(inputs.selectedCandidates).filter(_.isCandidateType[TweetCandidate]())
-
-    val expBucket = inputs.query.params(ExperimentStatsParam)
-
-    recordSuggestTypeStats(tweetCandidates, expBucket)
-    recordContentBalanceStats(tweetCandidates, expBucket)
-    recordResponseSizeStats(tweetCandidates, expBucket)
-    Stitch.Unit
-  }
-
-  def recordSuggestTypeStats(
-    candidates: Seq[ItemCandidateWithDetails],
-    expBucket: String
-  ): Unit = {
-    candidates.groupBy(getSuggestType).foreach {
-      case (suggestType, suggestTypeCandidates) =>
-        suggestTypeStatsReceiver
-          .scope(expBucket).counter(suggestType).incr(suggestTypeCandidates.size)
-    }
-  }
-
-  def recordContentBalanceStats(
-    candidates: Seq[ItemCandidateWithDetails],
-    expBucket: String
-  ): Unit = {
-    val (in, oon) = candidates.partition(_.features.getOrElse(InNetworkFeature, true))
-    inNetworkStatsReceiver.counter(expBucket).incr(in.size)
-    outOfNetworkStatsReceiver.counter(expBucket).incr(oon.size)
-
-    val (reply, original) =
-      candidates.partition(_.features.getOrElse(InReplyToTweetIdFeature, None).isDefined)
-    replyStatsReceiver.counter(expBucket).incr(reply.size)
-    originalStatsReceiver.counter(expBucket).incr(original.size)
-  }
-
-  def recordResponseSizeStats(
-    candidates: Seq[ItemCandidateWithDetails],
-    expBucket: String
-  ): Unit = {
-    if (candidates.size == 0) emptyStatsReceiver.counter(expBucket).incr()
-    if (candidates.size < 5) lessThan5StatsReceiver.counter(expBucket).incr()
-    if (candidates.size < 10) lessThan10StatsReceiver.counter(expBucket).incr()
-  }
-
-  private def getSuggestType(candidate: CandidateWithDetails): String =
-    candidate.features.getOrElse(SuggestTypeFeature, None).map(_.name).getOrElse("None")
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/BUILD.bazel
deleted file mode 100644
index 3a52b15dc..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/BUILD.bazel
+++ /dev/null
@@ -1,53 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/javax/inject:javax.inject",
-        "finatra/inject/inject-core/src/main/scala",
-        "finatra/inject/inject-core/src/main/scala/com/twitter/inject",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/candidate_source",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/candidate_source",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/filter",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/gate",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/service",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/filter",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/gate",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/premarshaller/urt",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/selector",
-        "product-mixer/core/src/main/java/com/twitter/product_mixer/core/product/guice/scope",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/configapi",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/decorator",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/decorator/urt/builder",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/common/presentation",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/request",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/response/urt",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/response/urt/item",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/candidate",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/mixer",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/product",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product/guice",
-        "src/thrift/com/twitter/hermit/candidate:hermit-candidate-scala",
-        "src/thrift/com/twitter/search:blender-scala",
-        "src/thrift/com/twitter/timelines/render:thrift-scala",
-    ],
-    exports = [
-        "src/thrift/com/twitter/timelines/render:thrift-scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/BlenderUsersCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/BlenderUsersCandidatePipelineConfig.scala
deleted file mode 100644
index e0919ae9d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/BlenderUsersCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,68 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users
-
-import com.twitter.home_mixer.product.list_recommended_users.candidate_source.BlenderUsersCandidateSource
-import com.twitter.home_mixer.product.list_recommended_users.feature_hydrator.IsGizmoduckValidUserFeatureHydrator
-import com.twitter.home_mixer.product.list_recommended_users.feature_hydrator.IsSGSValidUserFeatureHydrator
-import com.twitter.home_mixer.product.list_recommended_users.feature_hydrator.RecentListMembersFeature
-import com.twitter.home_mixer.product.list_recommended_users.model.ListRecommendedUsersQuery
-import com.twitter.product_mixer.component_library.decorator.urt.UrtItemCandidateDecorator
-import com.twitter.product_mixer.component_library.decorator.urt.builder.item.user.UserCandidateUrtItemBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.metadata.ClientEventInfoBuilder
-import com.twitter.product_mixer.component_library.gate.EmptySeqFeatureGate
-import com.twitter.product_mixer.component_library.model.candidate.UserCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.BaseCandidateSource
-import com.twitter.product_mixer.core.functional_component.decorator.CandidateDecorator
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BaseCandidateFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.search.blender.thriftscala.ThriftBlenderRequest
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class BlenderUsersCandidatePipelineConfig @Inject() (
-  blenderUsersCandidateSource: BlenderUsersCandidateSource,
-  isGizmoduckValidUserFeatureHydrator: IsGizmoduckValidUserFeatureHydrator,
-  isSGSValidUserFeatureHydrator: IsSGSValidUserFeatureHydrator)
-    extends CandidatePipelineConfig[
-      ListRecommendedUsersQuery,
-      ThriftBlenderRequest,
-      Long,
-      UserCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("BlenderUsers")
-
-  override val gates: Seq[Gate[ListRecommendedUsersQuery]] =
-    Seq(EmptySeqFeatureGate(RecentListMembersFeature))
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[
-    ListRecommendedUsersQuery,
-    ThriftBlenderRequest
-  ] = BlenderUsersCandidatePipelineQueryTransformer
-
-  override val candidateSource: BaseCandidateSource[ThriftBlenderRequest, Long] =
-    blenderUsersCandidateSource
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    Long,
-    UserCandidate
-  ] = { candidate => UserCandidate(id = candidate) }
-
-  override val preFilterFeatureHydrationPhase1: Seq[
-    BaseCandidateFeatureHydrator[ListRecommendedUsersQuery, UserCandidate, _]
-  ] = Seq(
-    isGizmoduckValidUserFeatureHydrator,
-    isSGSValidUserFeatureHydrator
-  )
-
-  override val decorator: Option[CandidateDecorator[ListRecommendedUsersQuery, UserCandidate]] = {
-    val clientEventInfoBuilder = ClientEventInfoBuilder("user")
-    val userItemBuilder = UserCandidateUrtItemBuilder(clientEventInfoBuilder)
-    Some(UrtItemCandidateDecorator(userItemBuilder))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/BlenderUsersCandidatePipelineQueryTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/BlenderUsersCandidatePipelineQueryTransformer.scala
deleted file mode 100644
index 03844fd38..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/BlenderUsersCandidatePipelineQueryTransformer.scala
+++ /dev/null
@@ -1,49 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users
-
-import com.twitter.home_mixer.product.list_recommended_users.model.ListRecommendedUsersQuery
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.search.adaptive.adaptive_results.thriftscala.ResultType
-import com.twitter.search.blender.adaptive_search.thriftscala.AdaptiveSearchRequest
-import com.twitter.search.blender.thriftscala.ThriftBlenderRequest
-import com.twitter.search.blender.thriftscala.ThriftBlenderTweetypieOptions
-import com.twitter.search.blender.thriftscala.ThriftBlenderWorkflowID
-import com.twitter.search.common.constants.thriftscala.ThriftQuerySource
-import com.twitter.spam.rtf.thriftscala.SafetyLevel
-
-object BlenderUsersCandidatePipelineQueryTransformer
-    extends CandidatePipelineQueryTransformer[ListRecommendedUsersQuery, ThriftBlenderRequest] {
-
-  override val identifier: TransformerIdentifier = TransformerIdentifier("BlenderUsers")
-
-  /**
-   * This is a user-defined descriptor used by Blender to track the source of traffic, and it
-   * is different from a client id, which is set during Finagle client construction.
-   */
-  private val ClientAppName = "timelinemixer.list_recommended_users"
-
-  override def transform(query: ListRecommendedUsersQuery): ThriftBlenderRequest = {
-
-    ThriftBlenderRequest(
-      workflowID = Some(ThriftBlenderWorkflowID.AdaptiveSearch),
-      userID = Some(query.getRequiredUserId), // perspectival
-      uiLang = query.clientContext.languageCode, // perspectival
-      clientAppName = Some(ClientAppName),
-      adaptiveSearchRequest = Some(
-        AdaptiveSearchRequest(
-          rawQuery = query.listName,
-          numResults = 40,
-          getPromotedContent = false,
-          resultFilter = Some(ResultType.User),
-        )
-      ),
-      querySource = Some(ThriftQuerySource.TypedQuery),
-      getCorrections = true,
-      tweetypieOptions = Some(
-        ThriftBlenderTweetypieOptions(
-          safetyLevel = Some(SafetyLevel.Recommendations)
-        )
-      )
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/ListMemberBasedUsersCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/ListMemberBasedUsersCandidatePipelineConfig.scala
deleted file mode 100644
index 756c58d72..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/ListMemberBasedUsersCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,98 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users
-
-import com.twitter.hermit.candidate.{thriftscala => t}
-import com.twitter.home_mixer.product.list_recommended_users.candidate_source.SimilarityBasedUsersCandidateSource
-import com.twitter.home_mixer.product.list_recommended_users.feature_hydrator.IsGizmoduckValidUserFeatureHydrator
-import com.twitter.home_mixer.product.list_recommended_users.feature_hydrator.IsListMemberFeatureHydrator
-import com.twitter.home_mixer.product.list_recommended_users.feature_hydrator.IsSGSValidUserFeatureHydrator
-import com.twitter.home_mixer.product.list_recommended_users.feature_hydrator.RecentListMembersFeature
-import com.twitter.home_mixer.product.list_recommended_users.filter.DropMaxCandidatesByAggregatedScoreFilter
-import com.twitter.home_mixer.product.list_recommended_users.filter.PreviouslyServedUsersFilter
-import com.twitter.home_mixer.product.list_recommended_users.model.ListRecommendedUsersFeatures.IsListMemberFeature
-import com.twitter.home_mixer.product.list_recommended_users.model.ListRecommendedUsersQuery
-import com.twitter.product_mixer.component_library.decorator.urt.UrtItemCandidateDecorator
-import com.twitter.product_mixer.component_library.decorator.urt.builder.item.user.UserCandidateUrtItemBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.metadata.ClientEventInfoBuilder
-import com.twitter.product_mixer.component_library.filter.PredicateFeatureFilter
-import com.twitter.product_mixer.component_library.gate.NonEmptySeqFeatureGate
-import com.twitter.product_mixer.component_library.model.candidate.UserCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.BaseCandidateSource
-import com.twitter.product_mixer.core.functional_component.decorator.CandidateDecorator
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BaseCandidateFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ListMemberBasedUsersCandidatePipelineConfig @Inject() (
-  similarityBasedUsersCandidateSource: SimilarityBasedUsersCandidateSource,
-  isGizmoduckValidUserFeatureHydrator: IsGizmoduckValidUserFeatureHydrator,
-  isListMemberFeatureHydrator: IsListMemberFeatureHydrator,
-  isSGSValidUserFeatureHydrator: IsSGSValidUserFeatureHydrator)
-    extends CandidatePipelineConfig[
-      ListRecommendedUsersQuery,
-      Seq[Long],
-      t.Candidate,
-      UserCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("ListMemberBasedUsers")
-
-  override val gates: Seq[Gate[ListRecommendedUsersQuery]] =
-    Seq(NonEmptySeqFeatureGate(RecentListMembersFeature))
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[ListRecommendedUsersQuery, Seq[
-    Long
-  ]] = { query =>
-    query.features.map(_.getOrElse(RecentListMembersFeature, Seq.empty)).getOrElse(Seq.empty)
-  }
-
-  override val candidateSource: BaseCandidateSource[Seq[Long], t.Candidate] =
-    similarityBasedUsersCandidateSource
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[t.Candidate]
-  ] = Seq(ListMemberBasedUsersResponseFeatureTransfromer)
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    t.Candidate,
-    UserCandidate
-  ] = { candidate =>
-    UserCandidate(id = candidate.userId)
-  }
-
-  override val preFilterFeatureHydrationPhase1: Seq[
-    BaseCandidateFeatureHydrator[ListRecommendedUsersQuery, UserCandidate, _]
-  ] = Seq(isListMemberFeatureHydrator)
-
-  override val filters: Seq[Filter[ListRecommendedUsersQuery, UserCandidate]] =
-    Seq(
-      PreviouslyServedUsersFilter,
-      PredicateFeatureFilter.fromPredicate(
-        FilterIdentifier("IsListMember"),
-        shouldKeepCandidate = { features => !features.getOrElse(IsListMemberFeature, false) }
-      ),
-      DropMaxCandidatesByAggregatedScoreFilter
-    )
-
-  override val postFilterFeatureHydration: Seq[
-    BaseCandidateFeatureHydrator[ListRecommendedUsersQuery, UserCandidate, _]
-  ] = Seq(
-    isGizmoduckValidUserFeatureHydrator,
-    isSGSValidUserFeatureHydrator
-  )
-
-  override val decorator: Option[CandidateDecorator[ListRecommendedUsersQuery, UserCandidate]] = {
-    val clientEventInfoBuilder = ClientEventInfoBuilder("user")
-    val userItemBuilder = UserCandidateUrtItemBuilder(clientEventInfoBuilder)
-    Some(UrtItemCandidateDecorator(userItemBuilder))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/ListMemberBasedUsersResponseFeatureTransfromer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/ListMemberBasedUsersResponseFeatureTransfromer.scala
deleted file mode 100644
index 7153d1f06..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/ListMemberBasedUsersResponseFeatureTransfromer.scala
+++ /dev/null
@@ -1,21 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users
-
-import com.twitter.hermit.candidate.{thriftscala => t}
-import com.twitter.home_mixer.product.list_recommended_users.model.ListRecommendedUsersFeatures.ScoreFeature
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-
-object ListMemberBasedUsersResponseFeatureTransfromer
-    extends CandidateFeatureTransformer[t.Candidate] {
-
-  override val identifier: TransformerIdentifier = TransformerIdentifier("ListMemberBasedUsers")
-
-  override val features: Set[Feature[_, _]] = Set(ScoreFeature)
-
-  override def transform(candidate: t.Candidate): FeatureMap = FeatureMapBuilder()
-    .add(ScoreFeature, candidate.score)
-    .build()
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/ListRecommendedUsersMixerPipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/ListRecommendedUsersMixerPipelineConfig.scala
deleted file mode 100644
index 8c72aefec..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/ListRecommendedUsersMixerPipelineConfig.scala
+++ /dev/null
@@ -1,111 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users
-
-import com.twitter.home_mixer.product.list_recommended_users.feature_hydrator.RecentListMembersQueryFeatureHydrator
-import com.twitter.home_mixer.product.list_recommended_users.gate.ViewerIsListOwnerGate
-import com.twitter.home_mixer.product.list_recommended_users.model.ListRecommendedUsersFeatures.IsGizmoduckValidUserFeature
-import com.twitter.home_mixer.product.list_recommended_users.model.ListRecommendedUsersFeatures.IsSGSValidUserFeature
-import com.twitter.home_mixer.product.list_recommended_users.model.ListRecommendedUsersQuery
-import com.twitter.home_mixer.product.list_recommended_users.param.ListRecommendedUsersParam.ExcludedIdsMaxLengthParam
-import com.twitter.home_mixer.product.list_recommended_users.param.ListRecommendedUsersParam.ServerMaxResultsParam
-import com.twitter.product_mixer.component_library.premarshaller.urt.UrtDomainMarshaller
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.AddEntriesWithReplaceInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ReplaceAllEntries
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ReplaceEntryInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.StaticTimelineScribeConfigBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.UnorderedExcludeIdsBottomCursorBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.UrtMetadataBuilder
-import com.twitter.product_mixer.component_library.selector.DropFilteredCandidates
-import com.twitter.product_mixer.component_library.selector.DropMaxCandidates
-import com.twitter.product_mixer.component_library.selector.InsertAppendResults
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.marshaller.TransportMarshaller
-import com.twitter.product_mixer.core.functional_component.marshaller.response.urt.UrtTransportMarshaller
-import com.twitter.product_mixer.core.functional_component.premarshaller.DomainMarshaller
-import com.twitter.product_mixer.core.functional_component.selector.Selector
-import com.twitter.product_mixer.core.model.common.UniversalNoun
-import com.twitter.product_mixer.core.model.common.identifier.MixerPipelineIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.urt.Timeline
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineScribeConfig
-import com.twitter.product_mixer.core.model.marshalling.response.urt.item.user.UserItem
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.product_mixer.core.pipeline.mixer.MixerPipelineConfig
-import com.twitter.timelines.render.{thriftscala => urt}
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ListRecommendedUsersMixerPipelineConfig @Inject() (
-  listMemberBasedUsersCandidatePipelineConfig: ListMemberBasedUsersCandidatePipelineConfig,
-  blenderUsersCandidatePipelineConfig: BlenderUsersCandidatePipelineConfig,
-  viewerIsListOwnerGate: ViewerIsListOwnerGate,
-  recentListMembersQueryFeatureHydrator: RecentListMembersQueryFeatureHydrator,
-  urtTransportMarshaller: UrtTransportMarshaller)
-    extends MixerPipelineConfig[ListRecommendedUsersQuery, Timeline, urt.TimelineResponse] {
-
-  override val identifier: MixerPipelineIdentifier = MixerPipelineIdentifier("ListRecommendedUsers")
-
-  override val gates = Seq(viewerIsListOwnerGate)
-
-  override val fetchQueryFeatures: Seq[QueryFeatureHydrator[ListRecommendedUsersQuery]] =
-    Seq(recentListMembersQueryFeatureHydrator)
-
-  override val candidatePipelines: Seq[
-    CandidatePipelineConfig[ListRecommendedUsersQuery, _, _, _]
-  ] = Seq(
-    listMemberBasedUsersCandidatePipelineConfig,
-    blenderUsersCandidatePipelineConfig
-  )
-
-  private val candidatePipelineIdentifiers = Set(
-    listMemberBasedUsersCandidatePipelineConfig.identifier,
-    blenderUsersCandidatePipelineConfig.identifier
-  )
-
-  override val resultSelectors: Seq[Selector[ListRecommendedUsersQuery]] = Seq(
-    DropFilteredCandidates(
-      candidatePipelines = candidatePipelineIdentifiers,
-      filter = candidate =>
-        candidate.features.getOrElse(IsSGSValidUserFeature, false) &&
-          candidate.features.getOrElse(IsGizmoduckValidUserFeature, false)
-    ),
-    DropMaxCandidates(
-      candidatePipelines = candidatePipelineIdentifiers,
-      maxSelectionsParam = ServerMaxResultsParam),
-    InsertAppendResults(candidatePipelineIdentifiers)
-  )
-
-  override val domainMarshaller: DomainMarshaller[ListRecommendedUsersQuery, Timeline] = {
-    val instructionBuilders = Seq(
-      ReplaceEntryInstructionBuilder(ReplaceAllEntries),
-      AddEntriesWithReplaceInstructionBuilder()
-    )
-
-    val metadataBuilder = UrtMetadataBuilder(
-      title = None,
-      scribeConfigBuilder = Some(
-        StaticTimelineScribeConfigBuilder(
-          TimelineScribeConfig(
-            page = Some("list_recommended_users"),
-            section = None,
-            entityToken = None)))
-    )
-
-    val excludeIdsSelector: PartialFunction[UniversalNoun[_], Long] = {
-      case item: UserItem => item.id
-    }
-
-    val cursorBuilder = UnorderedExcludeIdsBottomCursorBuilder(
-      excludedIdsMaxLengthParam = ExcludedIdsMaxLengthParam,
-      excludeIdsSelector = excludeIdsSelector)
-
-    UrtDomainMarshaller(
-      instructionBuilders = instructionBuilders,
-      metadataBuilder = Some(metadataBuilder),
-      cursorBuilders = Seq(cursorBuilder)
-    )
-  }
-
-  override val transportMarshaller: TransportMarshaller[Timeline, urt.TimelineResponse] =
-    urtTransportMarshaller
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/ListRecommendedUsersProductPipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/ListRecommendedUsersProductPipelineConfig.scala
deleted file mode 100644
index f0c2ac70e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/ListRecommendedUsersProductPipelineConfig.scala
+++ /dev/null
@@ -1,102 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.marshaller.timelines.RecommendedUsersCursorUnmarshaller
-import com.twitter.home_mixer.model.request.HomeMixerRequest
-import com.twitter.home_mixer.model.request.ListRecommendedUsersProduct
-import com.twitter.home_mixer.model.request.ListRecommendedUsersProductContext
-import com.twitter.home_mixer.product.list_recommended_users.model.ListRecommendedUsersQuery
-import com.twitter.home_mixer.product.list_recommended_users.param.ListRecommendedUsersParam.ServerMaxResultsParam
-import com.twitter.home_mixer.product.list_recommended_users.param.ListRecommendedUsersParamConfig
-import com.twitter.home_mixer.service.HomeMixerAccessPolicy.DefaultHomeMixerAccessPolicy
-import com.twitter.home_mixer.service.HomeMixerAlertConfig.DefaultNotificationGroup
-import com.twitter.product_mixer.component_library.premarshaller.cursor.UrtCursorSerializer
-import com.twitter.product_mixer.core.functional_component.common.access_policy.AccessPolicy
-import com.twitter.product_mixer.core.functional_component.common.alert.predicate.TriggerIfBelow
-import com.twitter.product_mixer.core.functional_component.common.alert.predicate.TriggerIfLatencyAbove
-import com.twitter.product_mixer.core.functional_component.common.alert.Alert
-import com.twitter.product_mixer.core.functional_component.common.alert.LatencyAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.P99
-import com.twitter.product_mixer.core.functional_component.common.alert.SuccessRateAlert
-import com.twitter.product_mixer.core.model.common.identifier.ComponentIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.ProductPipelineIdentifier
-import com.twitter.product_mixer.core.model.marshalling.request
-import com.twitter.product_mixer.core.pipeline.PipelineConfig
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.BadRequest
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.PipelineFailure
-import com.twitter.product_mixer.core.pipeline.product.ProductPipelineConfig
-import com.twitter.product_mixer.core.product.ProductParamConfig
-import com.twitter.timelines.configapi.Params
-import com.twitter.timelines.render.{thriftscala => urt}
-import com.twitter.timelines.util.RequestCursorSerializer
-import com.twitter.util.Try
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ListRecommendedUsersProductPipelineConfig @Inject() (
-  listRecommendedUsersMixerPipelineConfig: ListRecommendedUsersMixerPipelineConfig,
-  listRecommendedUsersParamConfig: ListRecommendedUsersParamConfig)
-    extends ProductPipelineConfig[
-      HomeMixerRequest,
-      ListRecommendedUsersQuery,
-      urt.TimelineResponse
-    ] {
-
-  override val identifier: ProductPipelineIdentifier =
-    ProductPipelineIdentifier("ListRecommendedUsers")
-  override val product: request.Product = ListRecommendedUsersProduct
-  override val paramConfig: ProductParamConfig = listRecommendedUsersParamConfig
-
-  override def pipelineQueryTransformer(
-    request: HomeMixerRequest,
-    params: Params
-  ): ListRecommendedUsersQuery = {
-    val context = request.productContext match {
-      case Some(context: ListRecommendedUsersProductContext) => context
-      case _ => throw PipelineFailure(BadRequest, "ListRecommendedUsersProductContext not found")
-    }
-
-    val debugOptions = request.debugParams.flatMap(_.debugOptions)
-
-    val pipelineCursor = request.serializedRequestCursor.flatMap { cursor =>
-      Try(UrtCursorSerializer.deserializeUnorderedExcludeIdsCursor(cursor))
-        .getOrElse(RecommendedUsersCursorUnmarshaller(RequestCursorSerializer.deserialize(cursor)))
-    }
-
-    ListRecommendedUsersQuery(
-      listId = context.listId,
-      params = params,
-      clientContext = request.clientContext,
-      features = None,
-      pipelineCursor = pipelineCursor,
-      requestedMaxResults = Some(params(ServerMaxResultsParam)),
-      debugOptions = debugOptions,
-      selectedUserIds = context.selectedUserIds,
-      excludedUserIds = context.excludedUserIds,
-      listName = context.listName
-    )
-  }
-
-  override def pipelines: Seq[PipelineConfig] = Seq(listRecommendedUsersMixerPipelineConfig)
-
-  override def pipelineSelector(query: ListRecommendedUsersQuery): ComponentIdentifier =
-    listRecommendedUsersMixerPipelineConfig.identifier
-
-  override val alerts: Seq[Alert] = Seq(
-    SuccessRateAlert(
-      notificationGroup = DefaultNotificationGroup,
-      warnPredicate = TriggerIfBelow(99.9, 20, 30),
-      criticalPredicate = TriggerIfBelow(99.9, 30, 30),
-    ),
-    LatencyAlert(
-      notificationGroup = DefaultNotificationGroup,
-      percentile = P99,
-      warnPredicate = TriggerIfLatencyAbove(1000.millis, 15, 30),
-      criticalPredicate = TriggerIfLatencyAbove(1500.millis, 15, 30)
-    )
-  )
-
-  override val debugAccessPolicies: Set[AccessPolicy] = DefaultHomeMixerAccessPolicy
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/candidate_source/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/candidate_source/BUILD.bazel
deleted file mode 100644
index e1fa1de1c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/candidate_source/BUILD.bazel
+++ /dev/null
@@ -1,13 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/candidate_source",
-        "src/thrift/com/twitter/hermit/candidate:hermit-candidate-scala",
-        "src/thrift/com/twitter/search:blender-scala",
-        "strato/config/columns/recommendations/similarity:similarity-strato-client",
-        "strato/src/main/scala/com/twitter/strato/client",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/candidate_source/BlenderUsersCandidateSource.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/candidate_source/BlenderUsersCandidateSource.scala
deleted file mode 100644
index 3b7ac39fc..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/candidate_source/BlenderUsersCandidateSource.scala
+++ /dev/null
@@ -1,45 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users.candidate_source
-
-import com.twitter.product_mixer.core.functional_component.candidate_source.CandidateSource
-import com.twitter.product_mixer.core.model.common.identifier.CandidateSourceIdentifier
-import com.twitter.search.adaptive.adaptive_results.thriftscala.AdaptiveSearchResultData
-import com.twitter.search.adaptive.adaptive_results.thriftscala.Result
-import com.twitter.search.adaptive.adaptive_results.thriftscala.ResultData
-import com.twitter.search.blender.adaptive_search.thriftscala.AdaptiveSearchResponse
-import com.twitter.search.blender.adaptive_search.thriftscala.Container
-import com.twitter.search.blender.thriftscala.BlenderService
-import com.twitter.search.blender.thriftscala.ThriftBlenderRequest
-import com.twitter.stitch.Stitch
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class BlenderUsersCandidateSource @Inject() (
-  blenderClient: BlenderService.MethodPerEndpoint)
-    extends CandidateSource[ThriftBlenderRequest, Long] {
-
-  override val identifier: CandidateSourceIdentifier = CandidateSourceIdentifier("BlenderUsers")
-
-  override def apply(request: ThriftBlenderRequest): Stitch[Seq[Long]] = {
-    Stitch.callFuture(
-      blenderClient.serveV2(request).map { response =>
-        val userIdsOpt =
-          response.adaptiveSearchResponse.map(extractUserIdsFromAdaptiveSearchResponse)
-        userIdsOpt.getOrElse(Seq.empty)
-      }
-    )
-  }
-
-  private def extractUserIdsFromAdaptiveSearchResponse(
-    response: AdaptiveSearchResponse
-  ): Seq[Long] = {
-    response match {
-      case AdaptiveSearchResponse(Some(Seq(Container(Some(results), _))), _, _) =>
-        results.map(_.data).collect {
-          case AdaptiveSearchResultData.Result(Result(ResultData.User(user), _)) =>
-            user.id
-        }
-      case _ => Seq.empty
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/candidate_source/SimilarityBasedUsersCandidateSource.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/candidate_source/SimilarityBasedUsersCandidateSource.scala
deleted file mode 100644
index f5428d032..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/candidate_source/SimilarityBasedUsersCandidateSource.scala
+++ /dev/null
@@ -1,40 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users.candidate_source
-
-import com.twitter.hermit.candidate.{thriftscala => t}
-import com.twitter.product_mixer.core.functional_component.candidate_source.CandidateSource
-import com.twitter.product_mixer.core.model.common.identifier.CandidateSourceIdentifier
-import com.twitter.stitch.Stitch
-import com.twitter.strato.client.Fetcher
-import com.twitter.strato.generated.client.recommendations.similarity.SimilarUsersBySimsOnUserClientColumn
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class SimilarityBasedUsersCandidateSource @Inject() (
-  similarUsersBySimsOnUserClientColumn: SimilarUsersBySimsOnUserClientColumn)
-    extends CandidateSource[Seq[Long], t.Candidate] {
-
-  override val identifier: CandidateSourceIdentifier =
-    CandidateSourceIdentifier("SimilarityBasedUsers")
-
-  private val fetcher: Fetcher[Long, Unit, t.Candidates] =
-    similarUsersBySimsOnUserClientColumn.fetcher
-
-  private val MaxCandidatesToKeep = 4000
-
-  override def apply(request: Seq[Long]): Stitch[Seq[t.Candidate]] = {
-    Stitch
-      .collect {
-        request.map { userId =>
-          fetcher
-            .fetch(userId, Unit).map { result =>
-              result.v.map(_.candidates).getOrElse(Seq.empty)
-            }.map { candidates =>
-              val sortedCandidates = candidates.sortBy(-_.score)
-              sortedCandidates.take(MaxCandidatesToKeep)
-            }
-        }
-      }.map(_.flatten)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/feature_hydrator/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/feature_hydrator/BUILD.bazel
deleted file mode 100644
index bdd2de735..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/feature_hydrator/BUILD.bazel
+++ /dev/null
@@ -1,15 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/model",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/feature_hydrator",
-        "src/thrift/com/twitter/gizmoduck:thrift-scala",
-        "src/thrift/com/twitter/socialgraph:thrift-scala",
-        "stitch/stitch-gizmoduck",
-        "stitch/stitch-socialgraph",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/feature_hydrator/IsGizmoduckValidUserFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/feature_hydrator/IsGizmoduckValidUserFeatureHydrator.scala
deleted file mode 100644
index 80a41adf0..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/feature_hydrator/IsGizmoduckValidUserFeatureHydrator.scala
+++ /dev/null
@@ -1,66 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users.feature_hydrator
-
-import com.twitter.gizmoduck.{thriftscala => gt}
-import com.twitter.home_mixer.product.list_recommended_users.model.ListRecommendedUsersFeatures.IsGizmoduckValidUserFeature
-import com.twitter.product_mixer.component_library.model.candidate.UserCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.spam.rtf.{thriftscala => rtf}
-import com.twitter.stitch.Stitch
-import com.twitter.stitch.gizmoduck.Gizmoduck
-import com.twitter.util.Return
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class IsGizmoduckValidUserFeatureHydrator @Inject() (gizmoduck: Gizmoduck)
-    extends BulkCandidateFeatureHydrator[PipelineQuery, UserCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("IsGizmoduckValidUser")
-
-  override val features: Set[Feature[_, _]] = Set(IsGizmoduckValidUserFeature)
-
-  private val queryFields: Set[gt.QueryFields] = Set(gt.QueryFields.Safety)
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[UserCandidate]]
-  ): Stitch[Seq[FeatureMap]] = {
-    val context = gt.LookupContext(
-      forUserId = query.getOptionalUserId,
-      includeProtected = true,
-      safetyLevel = Some(rtf.SafetyLevel.Recommendations)
-    )
-    val userIds = candidates.map(_.candidate.id)
-
-    Stitch
-      .collectToTry(
-        userIds.map(userId => gizmoduck.getUserById(userId, queryFields, context))).map {
-        userResults =>
-          val idToUserSafetyMap = userResults
-            .collect {
-              case Return(user) => user
-            }.map(user => user.id -> user.safety).toMap
-
-          candidates.map { candidate =>
-            val safety = idToUserSafetyMap.getOrElse(candidate.candidate.id, None)
-            val isValidUser = safety.isDefined &&
-              !safety.exists(_.deactivated) &&
-              !safety.exists(_.suspended) &&
-              !safety.exists(_.isProtected) &&
-              !safety.flatMap(_.offboarded).getOrElse(false)
-
-            FeatureMapBuilder()
-              .add(IsGizmoduckValidUserFeature, isValidUser)
-              .build()
-          }
-      }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/feature_hydrator/IsListMemberFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/feature_hydrator/IsListMemberFeatureHydrator.scala
deleted file mode 100644
index c9e529de5..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/feature_hydrator/IsListMemberFeatureHydrator.scala
+++ /dev/null
@@ -1,53 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users.feature_hydrator
-
-import com.twitter.home_mixer.model.request.HasListId
-import com.twitter.home_mixer.product.list_recommended_users.model.ListRecommendedUsersFeatures.IsListMemberFeature
-import com.twitter.product_mixer.component_library.model.candidate.UserCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.socialgraph.{thriftscala => sg}
-import com.twitter.stitch.Stitch
-import com.twitter.stitch.socialgraph.SocialGraph
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class IsListMemberFeatureHydrator @Inject() (socialGraph: SocialGraph)
-    extends BulkCandidateFeatureHydrator[PipelineQuery with HasListId, UserCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("IsListMember")
-
-  override val features: Set[Feature[_, _]] = Set(IsListMemberFeature)
-
-  override def apply(
-    query: PipelineQuery with HasListId,
-    candidates: Seq[CandidateWithFeatures[UserCandidate]]
-  ): Stitch[Seq[FeatureMap]] = {
-    val userIds = candidates.map(_.candidate.id)
-    val request = sg.IdsRequest(
-      relationships = Seq(
-        sg.SrcRelationship(
-          source = query.listId,
-          relationshipType = sg.RelationshipType.ListHasMember,
-          hasRelationship = true,
-          targets = Some(userIds))),
-      pageRequest = Some(sg.PageRequest(selectAll = Some(true)))
-    )
-
-    socialGraph.ids(request).map(_.ids).map { listMembers =>
-      val listMembersSet = listMembers.toSet
-      candidates.map { candidate =>
-        FeatureMapBuilder()
-          .add(IsListMemberFeature, listMembersSet.contains(candidate.candidate.id))
-          .build()
-      }
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/feature_hydrator/IsSGSValidUserFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/feature_hydrator/IsSGSValidUserFeatureHydrator.scala
deleted file mode 100644
index de70d45d8..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/feature_hydrator/IsSGSValidUserFeatureHydrator.scala
+++ /dev/null
@@ -1,65 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users.feature_hydrator
-
-import com.twitter.home_mixer.model.request.HasListId
-import com.twitter.home_mixer.product.list_recommended_users.model.ListRecommendedUsersFeatures.IsSGSValidUserFeature
-import com.twitter.product_mixer.component_library.model.candidate.UserCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.socialgraph.{thriftscala => sg}
-import com.twitter.stitch.Stitch
-import com.twitter.stitch.socialgraph.SocialGraph
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class IsSGSValidUserFeatureHydrator @Inject() (socialGraph: SocialGraph)
-    extends BulkCandidateFeatureHydrator[PipelineQuery with HasListId, UserCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("IsSGSValidUser")
-
-  override def features: Set[Feature[_, _]] = Set(IsSGSValidUserFeature)
-
-  override def apply(
-    query: PipelineQuery with HasListId,
-    candidates: Seq[CandidateWithFeatures[UserCandidate]]
-  ): Stitch[Seq[FeatureMap]] = {
-    val sourceId = query.getRequiredUserId
-    val targetUserIds = candidates.map(_.candidate.id)
-    val request = sg.IdsRequest(
-      relationships = Seq(
-        sg.SrcRelationship(
-          source = sourceId,
-          relationshipType = sg.RelationshipType.Blocking,
-          hasRelationship = true,
-          targets = Some(targetUserIds)),
-        sg.SrcRelationship(
-          source = sourceId,
-          relationshipType = sg.RelationshipType.BlockedBy,
-          hasRelationship = true,
-          targets = Some(targetUserIds)),
-        sg.SrcRelationship(
-          source = sourceId,
-          relationshipType = sg.RelationshipType.Muting,
-          hasRelationship = true,
-          targets = Some(targetUserIds))
-      ),
-      pageRequest = Some(sg.PageRequest(selectAll = Some(true))),
-      context = Some(sg.LookupContext(performUnion = Some(true)))
-    )
-
-    socialGraph.ids(request).map(_.ids).map(_.toSet).map { hasRelationshipUserIds =>
-      candidates.map { candidate =>
-        FeatureMapBuilder()
-          .add(IsSGSValidUserFeature, !hasRelationshipUserIds.contains(candidate.candidate.id))
-          .build()
-      }
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/feature_hydrator/RecentListMembersQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/feature_hydrator/RecentListMembersQueryFeatureHydrator.scala
deleted file mode 100644
index 81a5ce504..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/feature_hydrator/RecentListMembersQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,43 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users.feature_hydrator
-
-import com.twitter.home_mixer.model.request.HasListId
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.socialgraph.{thriftscala => sg}
-import com.twitter.stitch.Stitch
-import com.twitter.stitch.socialgraph.SocialGraph
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-case object RecentListMembersFeature extends FeatureWithDefaultOnFailure[PipelineQuery, Seq[Long]] {
-  override val defaultValue: Seq[Long] = Seq.empty
-}
-
-@Singleton
-class RecentListMembersQueryFeatureHydrator @Inject() (socialGraph: SocialGraph)
-    extends QueryFeatureHydrator[PipelineQuery with HasListId] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("RecentListMembers")
-
-  override val features: Set[Feature[_, _]] = Set(RecentListMembersFeature)
-
-  private val MaxRecentMembers = 10
-
-  override def hydrate(query: PipelineQuery with HasListId): Stitch[FeatureMap] = {
-    val request = sg.IdsRequest(
-      relationships = Seq(sg
-        .SrcRelationship(query.listId, sg.RelationshipType.ListHasMember, hasRelationship = true)),
-      pageRequest = Some(sg.PageRequest(selectAll = Some(true), count = Some(MaxRecentMembers)))
-    )
-    socialGraph.ids(request).map(_.ids).map { listMembers =>
-      FeatureMapBuilder().add(RecentListMembersFeature, listMembers).build()
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/filter/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/filter/BUILD.bazel
deleted file mode 100644
index 72a5f251f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/filter/BUILD.bazel
+++ /dev/null
@@ -1,13 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/model",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/filter",
-    ],
-    exports = [],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/filter/DropMaxCandidatesByAggregatedScoreFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/filter/DropMaxCandidatesByAggregatedScoreFilter.scala
deleted file mode 100644
index a68c37450..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/filter/DropMaxCandidatesByAggregatedScoreFilter.scala
+++ /dev/null
@@ -1,37 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users.filter
-
-import com.twitter.home_mixer.product.list_recommended_users.model.ListRecommendedUsersFeatures.ScoreFeature
-import com.twitter.product_mixer.component_library.model.candidate.UserCandidate
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-object DropMaxCandidatesByAggregatedScoreFilter extends Filter[PipelineQuery, UserCandidate] {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("DropMaxCandidatesByAggregatedScore")
-
-  private val MaxSimilarUserCandidates = 150
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[UserCandidate]]
-  ): Stitch[FilterResult[UserCandidate]] = {
-    val userIdToAggregatedScoreMap = candidates
-      .groupBy(_.candidate.id)
-      .map {
-        case (userId, candidates) =>
-          val aggregatedScore = candidates.map(_.features.getOrElse(ScoreFeature, 0.0)).sum
-          (userId, aggregatedScore)
-      }
-
-    val sortedCandidates = candidates.sortBy(candidate =>
-      -userIdToAggregatedScoreMap.getOrElse(candidate.candidate.id, 0.0))
-
-    val (kept, removed) = sortedCandidates.map(_.candidate).splitAt(MaxSimilarUserCandidates)
-
-    Stitch.value(FilterResult(kept, removed))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/filter/PreviouslyServedUsersFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/filter/PreviouslyServedUsersFilter.scala
deleted file mode 100644
index ac8c3107d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/filter/PreviouslyServedUsersFilter.scala
+++ /dev/null
@@ -1,35 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users.filter
-
-import com.twitter.home_mixer.product.list_recommended_users.feature_hydrator.RecentListMembersFeature
-import com.twitter.home_mixer.product.list_recommended_users.model.ListRecommendedUsersQuery
-import com.twitter.product_mixer.component_library.model.candidate.UserCandidate
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.stitch.Stitch
-
-object PreviouslyServedUsersFilter extends Filter[ListRecommendedUsersQuery, UserCandidate] {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("PreviouslyServedUsers")
-
-  override def apply(
-    query: ListRecommendedUsersQuery,
-    candidates: Seq[CandidateWithFeatures[UserCandidate]]
-  ): Stitch[FilterResult[UserCandidate]] = {
-
-    val recentListMembers = query.features.map(_.getOrElse(RecentListMembersFeature, Seq.empty))
-
-    val servedUserIds = query.pipelineCursor.map(_.excludedIds)
-
-    val excludedUserIds = (recentListMembers.getOrElse(Seq.empty) ++
-      query.selectedUserIds.getOrElse(Seq.empty) ++
-      query.excludedUserIds.getOrElse(Seq.empty) ++
-      servedUserIds.getOrElse(Seq.empty)).toSet
-
-    val (removed, kept) =
-      candidates.map(_.candidate).partition(candidate => excludedUserIds.contains(candidate.id))
-
-    Stitch.value(FilterResult(kept = kept, removed = removed))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/gate/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/gate/BUILD.bazel
deleted file mode 100644
index f8a7083b9..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/gate/BUILD.bazel
+++ /dev/null
@@ -1,12 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/gate",
-        "src/thrift/com/twitter/socialgraph:thrift-scala",
-        "stitch/stitch-socialgraph",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/gate/ViewerIsListOwnerGate.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/gate/ViewerIsListOwnerGate.scala
deleted file mode 100644
index e7ab3084e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/gate/ViewerIsListOwnerGate.scala
+++ /dev/null
@@ -1,29 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users.gate
-
-import com.twitter.home_mixer.model.request.HasListId
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.model.common.identifier.GateIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.socialgraph.{thriftscala => sg}
-import com.twitter.stitch.Stitch
-import com.twitter.stitch.socialgraph.SocialGraph
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class ViewerIsListOwnerGate @Inject() (socialGraph: SocialGraph)
-    extends Gate[PipelineQuery with HasListId] {
-
-  override val identifier: GateIdentifier = GateIdentifier("ViewerIsListOwner")
-
-  private val relationship = sg.Relationship(relationshipType = sg.RelationshipType.ListOwning)
-
-  override def shouldContinue(query: PipelineQuery with HasListId): Stitch[Boolean] = {
-    val request = sg.ExistsRequest(
-      source = query.getRequiredUserId,
-      target = query.listId,
-      relationships = Seq(relationship))
-    socialGraph.exists(request).map(_.exists)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/model/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/model/BUILD.bazel
deleted file mode 100644
index 78302f75b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/model/BUILD.bazel
+++ /dev/null
@@ -1,16 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/cursor",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-    ],
-    exports = [
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/cursor",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/model/ListRecommendedUsersFeatures.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/model/ListRecommendedUsersFeatures.scala
deleted file mode 100644
index baed8171b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/model/ListRecommendedUsersFeatures.scala
+++ /dev/null
@@ -1,12 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users.model
-
-import com.twitter.product_mixer.component_library.model.candidate.UserCandidate
-import com.twitter.product_mixer.core.feature.Feature
-
-object ListRecommendedUsersFeatures {
-  // Candidate features
-  object IsGizmoduckValidUserFeature extends Feature[UserCandidate, Boolean]
-  object IsListMemberFeature extends Feature[UserCandidate, Boolean]
-  object IsSGSValidUserFeature extends Feature[UserCandidate, Boolean]
-  object ScoreFeature extends Feature[UserCandidate, Double]
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/model/ListRecommendedUsersQuery.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/model/ListRecommendedUsersQuery.scala
deleted file mode 100644
index 15b16c25b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/model/ListRecommendedUsersQuery.scala
+++ /dev/null
@@ -1,31 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users.model
-
-import com.twitter.home_mixer.model.request.HasListId
-import com.twitter.home_mixer.model.request.ListRecommendedUsersProduct
-import com.twitter.product_mixer.component_library.model.cursor.UrtUnorderedExcludeIdsCursor
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.marshalling.request._
-import com.twitter.product_mixer.core.pipeline.HasPipelineCursor
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelines.configapi.Params
-
-case class ListRecommendedUsersQuery(
-  override val listId: Long,
-  override val params: Params,
-  override val clientContext: ClientContext,
-  override val pipelineCursor: Option[UrtUnorderedExcludeIdsCursor],
-  override val requestedMaxResults: Option[Int],
-  override val debugOptions: Option[DebugOptions],
-  override val features: Option[FeatureMap],
-  selectedUserIds: Option[Seq[Long]],
-  excludedUserIds: Option[Seq[Long]],
-  listName: Option[String])
-    extends PipelineQuery
-    with HasPipelineCursor[UrtUnorderedExcludeIdsCursor]
-    with HasListId {
-
-  override val product: Product = ListRecommendedUsersProduct
-
-  override def withFeatureMap(features: FeatureMap): ListRecommendedUsersQuery =
-    copy(features = Some(features))
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/param/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/param/BUILD.bazel
deleted file mode 100644
index 18867ad9e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/param/BUILD.bazel
+++ /dev/null
@@ -1,12 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/javax/inject:javax.inject",
-        "configapi/configapi-core/src/main/scala/com/twitter/timelines/configapi",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param/decider",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/param/ListRecommendedUsersParam.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/param/ListRecommendedUsersParam.scala
deleted file mode 100644
index 3822a1987..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/param/ListRecommendedUsersParam.scala
+++ /dev/null
@@ -1,23 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users.param
-
-import com.twitter.timelines.configapi.FSBoundedParam
-
-object ListRecommendedUsersParam {
-  val SupportedClientFSName = "list_recommended_users_supported_client"
-
-  object ServerMaxResultsParam
-      extends FSBoundedParam[Int](
-        name = "list_recommended_users_server_max_results",
-        default = 10,
-        min = 1,
-        max = 500
-      )
-
-  object ExcludedIdsMaxLengthParam
-      extends FSBoundedParam[Int](
-        name = "list_recommended_users_excluded_ids_max_length",
-        default = 2000,
-        min = 0,
-        max = 5000
-      )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/param/ListRecommendedUsersParamConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/param/ListRecommendedUsersParamConfig.scala
deleted file mode 100644
index b162ef755..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_recommended_users/param/ListRecommendedUsersParamConfig.scala
+++ /dev/null
@@ -1,22 +0,0 @@
-package com.twitter.home_mixer.product.list_recommended_users.param
-
-import com.twitter.home_mixer.param.decider.DeciderKey
-import com.twitter.home_mixer.product.list_recommended_users.param.ListRecommendedUsersParam.ExcludedIdsMaxLengthParam
-import com.twitter.home_mixer.product.list_recommended_users.param.ListRecommendedUsersParam.ServerMaxResultsParam
-import com.twitter.home_mixer.product.list_recommended_users.param.ListRecommendedUsersParam.SupportedClientFSName
-import com.twitter.product_mixer.core.product.ProductParamConfig
-import com.twitter.servo.decider.DeciderKeyName
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ListRecommendedUsersParamConfig @Inject() () extends ProductParamConfig {
-  override val enabledDeciderKey: DeciderKeyName = DeciderKey.EnableListRecommendedUsersProduct
-  override val supportedClientFSName: String = SupportedClientFSName
-
-  override val boundedIntFSOverrides = Seq(
-    ServerMaxResultsParam,
-    ExcludedIdsMaxLengthParam
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/BUILD.bazel
deleted file mode 100644
index a7d22148a..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/BUILD.bazel
+++ /dev/null
@@ -1,61 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/javax/inject:javax.inject",
-        "ads-injection/lib/src/main/scala/com/twitter/goldfinch/api",
-        "finatra/inject/inject-core/src/main/scala",
-        "finatra/inject/inject-core/src/main/scala/com/twitter/inject",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/candidate_source",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/decorator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/service",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/timeline_service",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/candidate/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/candidate/param_gated",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/social_graph",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/gate",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/pipeline/candidate/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/premarshaller/urt",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/selector",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/selector/ads",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/side_effect",
-        "product-mixer/core/src/main/java/com/twitter/product_mixer/core/product/guice/scope",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/configapi",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/decorator",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/decorator/urt/builder",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/common/presentation",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/request",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/response/urt",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/response/urt/item",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/candidate",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/mixer",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/product",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product/guice",
-        "src/thrift/com/twitter/timelines/render:thrift-scala",
-        "timelines/src/main/scala/com/twitter/timelines/injection/scribe",
-    ],
-    exports = [
-        "src/thrift/com/twitter/timelines/render:thrift-scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/ListTweetsAdsCandidatePipelineBuilder.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/ListTweetsAdsCandidatePipelineBuilder.scala
deleted file mode 100644
index 9e5a4e541..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/ListTweetsAdsCandidatePipelineBuilder.scala
+++ /dev/null
@@ -1,93 +0,0 @@
-package com.twitter.home_mixer.product.list_tweets
-
-import com.twitter.adserver.{thriftscala => ads}
-import com.twitter.home_mixer.functional_component.decorator.builder.HomeAdsClientEventDetailsBuilder
-import com.twitter.home_mixer.functional_component.gate.ExcludeSoftUserGate
-import com.twitter.home_mixer.param.HomeGlobalParams
-import com.twitter.home_mixer.param.HomeGlobalParams.EnableAdvertiserBrandSafetySettingsFeatureHydratorParam
-import com.twitter.home_mixer.product.list_tweets.model.ListTweetsQuery
-import com.twitter.home_mixer.product.list_tweets.param.ListTweetsParam.EnableAdsCandidatePipelineParam
-import com.twitter.product_mixer.component_library.candidate_source.ads.AdsProdThriftCandidateSource
-import com.twitter.product_mixer.component_library.decorator.urt.UrtItemCandidateDecorator
-import com.twitter.product_mixer.component_library.decorator.urt.builder.contextual_ref.ContextualTweetRefBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.item.ad.AdsCandidateUrtItemBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.metadata.ClientEventInfoBuilder
-import com.twitter.product_mixer.component_library.feature_hydrator.candidate.ads.AdvertiserBrandSafetySettingsFeatureHydrator
-import com.twitter.product_mixer.component_library.feature_hydrator.candidate.param_gated.ParamGatedCandidateFeatureHydrator
-import com.twitter.product_mixer.component_library.gate.NonEmptyCandidatesGate
-import com.twitter.product_mixer.component_library.model.candidate.ads.AdsCandidate
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.AdsDependentCandidatePipelineConfig
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.AdsDependentCandidatePipelineConfigBuilder
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.CountCandidatesFromPipelines
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.StaticAdsDisplayLocationBuilder
-import com.twitter.product_mixer.component_library.pipeline.candidate.ads.ValidAdImpressionIdFilter
-import com.twitter.product_mixer.core.functional_component.common.CandidateScope
-import com.twitter.product_mixer.core.gate.ParamNotGate
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.rtf.safety_level.TimelineHomePromotedHydrationSafetyLevel
-import com.twitter.product_mixer.core.model.marshalling.response.urt.contextual_ref.TweetHydrationContext
-import com.twitter.timelines.injection.scribe.InjectionScribeUtil
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ListTweetsAdsCandidatePipelineBuilder @Inject() (
-  adsCandidatePipelineConfigBuilder: AdsDependentCandidatePipelineConfigBuilder,
-  adsCandidateSource: AdsProdThriftCandidateSource,
-  advertiserBrandSafetySettingsFeatureHydrator: AdvertiserBrandSafetySettingsFeatureHydrator[
-    ListTweetsQuery,
-    AdsCandidate
-  ]) {
-
-  private val identifier: CandidatePipelineIdentifier = CandidatePipelineIdentifier("ListTweetsAds")
-
-  private val suggestType = st.SuggestType.Promoted
-
-  private val clientEventInfoBuilder = ClientEventInfoBuilder(
-    component = InjectionScribeUtil.scribeComponent(suggestType).get,
-    detailsBuilder = Some(HomeAdsClientEventDetailsBuilder(Some(suggestType.name)))
-  )
-
-  private val contextualTweetRefBuilder = ContextualTweetRefBuilder(
-    TweetHydrationContext(
-      safetyLevelOverride = Some(TimelineHomePromotedHydrationSafetyLevel),
-      outerTweetContext = None
-    ))
-
-  private val decorator = UrtItemCandidateDecorator(
-    AdsCandidateUrtItemBuilder(
-      tweetClientEventInfoBuilder = Some(clientEventInfoBuilder),
-      contextualTweetRefBuilder = Some(contextualTweetRefBuilder)
-    )
-  )
-
-  def build(
-    organicCandidatePipelines: CandidateScope
-  ): AdsDependentCandidatePipelineConfig[ListTweetsQuery] =
-    adsCandidatePipelineConfigBuilder.build[ListTweetsQuery](
-      adsCandidateSource = adsCandidateSource,
-      identifier = identifier,
-      adsDisplayLocationBuilder =
-        StaticAdsDisplayLocationBuilder(ads.DisplayLocation.TimelineHomeReverseChron),
-      countNumOrganicItems = CountCandidatesFromPipelines(organicCandidatePipelines),
-      supportedClientParam = Some(EnableAdsCandidatePipelineParam),
-      gates = Seq(
-        ParamNotGate(
-          name = "AdsDisableInjectionBasedOnUserRole",
-          param = HomeGlobalParams.AdsDisableInjectionBasedOnUserRoleParam
-        ),
-        ExcludeSoftUserGate,
-        NonEmptyCandidatesGate(organicCandidatePipelines)
-      ),
-      filters = Seq(ValidAdImpressionIdFilter),
-      postFilterFeatureHydration = Seq(
-        ParamGatedCandidateFeatureHydrator(
-          EnableAdvertiserBrandSafetySettingsFeatureHydratorParam,
-          advertiserBrandSafetySettingsFeatureHydrator
-        )
-      ),
-      decorator = Some(decorator),
-      urtRequest = Some(true),
-    )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/ListTweetsMixerPipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/ListTweetsMixerPipelineConfig.scala
deleted file mode 100644
index 2d7dd3b31..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/ListTweetsMixerPipelineConfig.scala
+++ /dev/null
@@ -1,162 +0,0 @@
-package com.twitter.home_mixer.product.list_tweets
-
-import com.twitter.clientapp.{thriftscala => ca}
-import com.twitter.goldfinch.api.AdsInjectionSurfaceAreas
-import com.twitter.home_mixer.candidate_pipeline.ConversationServiceCandidatePipelineConfigBuilder
-import com.twitter.home_mixer.functional_component.feature_hydrator.RequestQueryFeatureHydrator
-import com.twitter.home_mixer.functional_component.side_effect.HomeScribeClientEventSideEffect
-import com.twitter.home_mixer.model.GapIncludeInstruction
-import com.twitter.home_mixer.param.HomeMixerFlagName.ScribeClientEventsFlag
-import com.twitter.home_mixer.product.list_tweets.decorator.ListConversationServiceCandidateDecorator
-import com.twitter.home_mixer.product.list_tweets.model.ListTweetsQuery
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.inject.annotations.Flag
-import com.twitter.logpipeline.client.common.EventPublisher
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.SGSFollowedUsersQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.gate.NonEmptyCandidatesGate
-import com.twitter.product_mixer.component_library.premarshaller.urt.UrtDomainMarshaller
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.AddEntriesWithReplaceAndShowAlertInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.OrderedBottomCursorBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.OrderedGapCursorBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.OrderedTopCursorBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ReplaceAllEntries
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ReplaceEntryInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ShowAlertInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.StaticTimelineScribeConfigBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.UrtMetadataBuilder
-import com.twitter.product_mixer.component_library.selector.InsertAppendResults
-import com.twitter.product_mixer.component_library.selector.UpdateSortCandidates
-import com.twitter.product_mixer.component_library.selector.ads.AdsInjector
-import com.twitter.product_mixer.component_library.selector.ads.InsertAdResults
-import com.twitter.product_mixer.core.functional_component.common.SpecificPipelines
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.marshaller.TransportMarshaller
-import com.twitter.product_mixer.core.functional_component.marshaller.response.urt.UrtTransportMarshaller
-import com.twitter.product_mixer.core.functional_component.premarshaller.DomainMarshaller
-import com.twitter.product_mixer.core.functional_component.selector.Selector
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.UniversalNoun
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.MixerPipelineIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.urt.Timeline
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineModule
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineScribeConfig
-import com.twitter.product_mixer.core.model.marshalling.response.urt.item.tweet.TweetItem
-import com.twitter.product_mixer.core.pipeline.FailOpenPolicy
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.product_mixer.core.pipeline.candidate.DependentCandidatePipelineConfig
-import com.twitter.product_mixer.core.pipeline.mixer.MixerPipelineConfig
-import com.twitter.timelines.render.{thriftscala => urt}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ListTweetsMixerPipelineConfig @Inject() (
-  listTweetsTimelineServiceCandidatePipelineConfig: ListTweetsTimelineServiceCandidatePipelineConfig,
-  conversationServiceCandidatePipelineConfigBuilder: ConversationServiceCandidatePipelineConfigBuilder[
-    ListTweetsQuery
-  ],
-  listTweetsAdsCandidatePipelineBuilder: ListTweetsAdsCandidatePipelineBuilder,
-  requestQueryFeatureHydrator: RequestQueryFeatureHydrator[ListTweetsQuery],
-  sgsFollowedUsersQueryFeatureHydrator: SGSFollowedUsersQueryFeatureHydrator,
-  adsInjector: AdsInjector,
-  clientEventsScribeEventPublisher: EventPublisher[ca.LogEvent],
-  urtTransportMarshaller: UrtTransportMarshaller,
-  @Flag(ScribeClientEventsFlag) enableScribeClientEvents: Boolean)
-    extends MixerPipelineConfig[ListTweetsQuery, Timeline, urt.TimelineResponse] {
-
-  override val identifier: MixerPipelineIdentifier = MixerPipelineIdentifier("ListTweets")
-
-  private val conversationServiceCandidatePipelineConfig =
-    conversationServiceCandidatePipelineConfigBuilder.build(
-      Seq(
-        NonEmptyCandidatesGate(
-          SpecificPipelines(listTweetsTimelineServiceCandidatePipelineConfig.identifier))
-      ),
-      ListConversationServiceCandidateDecorator()
-    )
-
-  private val listTweetsAdsCandidatePipelineConfig = listTweetsAdsCandidatePipelineBuilder.build(
-    SpecificPipelines(listTweetsTimelineServiceCandidatePipelineConfig.identifier)
-  )
-
-  override val candidatePipelines: Seq[CandidatePipelineConfig[ListTweetsQuery, _, _, _]] =
-    Seq(listTweetsTimelineServiceCandidatePipelineConfig)
-
-  override val dependentCandidatePipelines: Seq[
-    DependentCandidatePipelineConfig[ListTweetsQuery, _, _, _]
-  ] =
-    Seq(conversationServiceCandidatePipelineConfig, listTweetsAdsCandidatePipelineConfig)
-
-  override val failOpenPolicies: Map[CandidatePipelineIdentifier, FailOpenPolicy] = Map(
-    conversationServiceCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    listTweetsAdsCandidatePipelineConfig.identifier -> FailOpenPolicy.Always)
-
-  override val resultSelectors: Seq[Selector[ListTweetsQuery]] = Seq(
-    UpdateSortCandidates(
-      ordering = CandidatesUtil.reverseChronTweetsOrdering,
-      candidatePipeline = conversationServiceCandidatePipelineConfig.identifier
-    ),
-    InsertAppendResults(candidatePipeline = conversationServiceCandidatePipelineConfig.identifier),
-    InsertAdResults(
-      surfaceAreaName = AdsInjectionSurfaceAreas.HomeTimeline,
-      adsInjector = adsInjector.forSurfaceArea(AdsInjectionSurfaceAreas.HomeTimeline),
-      adsCandidatePipeline = listTweetsAdsCandidatePipelineConfig.identifier
-    ),
-  )
-
-  override val fetchQueryFeatures: Seq[QueryFeatureHydrator[ListTweetsQuery]] = Seq(
-    requestQueryFeatureHydrator,
-    sgsFollowedUsersQueryFeatureHydrator
-  )
-
-  private val homeScribeClientEventSideEffect = HomeScribeClientEventSideEffect(
-    enableScribeClientEvents = enableScribeClientEvents,
-    logPipelinePublisher = clientEventsScribeEventPublisher,
-    injectedTweetsCandidatePipelineIdentifiers =
-      Seq(conversationServiceCandidatePipelineConfig.identifier),
-    adsCandidatePipelineIdentifier = Some(listTweetsAdsCandidatePipelineConfig.identifier),
-  )
-
-  override val resultSideEffects: Seq[PipelineResultSideEffect[ListTweetsQuery, Timeline]] =
-    Seq(homeScribeClientEventSideEffect)
-
-  override val domainMarshaller: DomainMarshaller[ListTweetsQuery, Timeline] = {
-    val instructionBuilders = Seq(
-      ReplaceEntryInstructionBuilder(ReplaceAllEntries),
-      AddEntriesWithReplaceAndShowAlertInstructionBuilder(),
-      ShowAlertInstructionBuilder()
-    )
-
-    val idSelector: PartialFunction[UniversalNoun[_], Long] = {
-      // exclude ads while determining tweet cursor values
-      case item: TweetItem if item.promotedMetadata.isEmpty => item.id
-      case module: TimelineModule
-          if module.items.headOption.exists(_.item.isInstanceOf[TweetItem]) =>
-        module.items.last.item match {
-          case item: TweetItem => item.id
-        }
-    }
-
-    val topCursorBuilder = OrderedTopCursorBuilder(idSelector)
-    val bottomCursorBuilder =
-      OrderedBottomCursorBuilder(idSelector, GapIncludeInstruction.inverse())
-    val gapCursorBuilder = OrderedGapCursorBuilder(idSelector, GapIncludeInstruction)
-
-    val metadataBuilder = UrtMetadataBuilder(
-      title = None,
-      scribeConfigBuilder = Some(
-        StaticTimelineScribeConfigBuilder(
-          TimelineScribeConfig(page = Some("list_tweets"), section = None, entityToken = None)))
-    )
-
-    UrtDomainMarshaller(
-      instructionBuilders = instructionBuilders,
-      metadataBuilder = Some(metadataBuilder),
-      cursorBuilders = Seq(topCursorBuilder, bottomCursorBuilder, gapCursorBuilder)
-    )
-  }
-
-  override val transportMarshaller: TransportMarshaller[Timeline, urt.TimelineResponse] =
-    urtTransportMarshaller
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/ListTweetsProductPipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/ListTweetsProductPipelineConfig.scala
deleted file mode 100644
index b4b5b1924..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/ListTweetsProductPipelineConfig.scala
+++ /dev/null
@@ -1,130 +0,0 @@
-package com.twitter.home_mixer.product.list_tweets
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.marshaller.timelines.ChronologicalCursorUnmarshaller
-import com.twitter.home_mixer.model.request.HomeMixerRequest
-import com.twitter.home_mixer.model.request.ListTweetsProduct
-import com.twitter.home_mixer.model.request.ListTweetsProductContext
-import com.twitter.home_mixer.product.list_tweets.model.ListTweetsQuery
-import com.twitter.home_mixer.product.list_tweets.param.ListTweetsParam.ServerMaxResultsParam
-import com.twitter.home_mixer.product.list_tweets.param.ListTweetsParamConfig
-import com.twitter.home_mixer.service.HomeMixerAccessPolicy.DefaultHomeMixerAccessPolicy
-import com.twitter.home_mixer.service.HomeMixerAlertConfig.DefaultNotificationGroup
-import com.twitter.product_mixer.component_library.model.cursor.UrtOrderedCursor
-import com.twitter.product_mixer.component_library.premarshaller.cursor.UrtCursorSerializer
-import com.twitter.product_mixer.core.functional_component.common.access_policy.AccessPolicy
-import com.twitter.product_mixer.core.functional_component.common.alert.Alert
-import com.twitter.product_mixer.core.functional_component.common.alert.EmptyResponseRateAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.LatencyAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.P99
-import com.twitter.product_mixer.core.functional_component.common.alert.SuccessRateAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.ThroughputAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.predicate.TriggerIfAbove
-import com.twitter.product_mixer.core.functional_component.common.alert.predicate.TriggerIfBelow
-import com.twitter.product_mixer.core.functional_component.common.alert.predicate.TriggerIfLatencyAbove
-import com.twitter.product_mixer.core.model.common.identifier.ComponentIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.ProductPipelineIdentifier
-import com.twitter.product_mixer.core.model.marshalling.request
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.GapCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.TopCursor
-import com.twitter.product_mixer.core.pipeline.PipelineConfig
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.BadRequest
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.MalformedCursor
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.PipelineFailure
-import com.twitter.product_mixer.core.pipeline.product.ProductPipelineConfig
-import com.twitter.product_mixer.core.product.ProductParamConfig
-import com.twitter.product_mixer.core.util.SortIndexBuilder
-import com.twitter.timelines.configapi.Params
-import com.twitter.timelines.render.{thriftscala => urt}
-import com.twitter.timelines.util.RequestCursorSerializer
-import com.twitter.util.Time
-import com.twitter.util.Try
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ListTweetsProductPipelineConfig @Inject() (
-  listTweetsMixerPipelineConfig: ListTweetsMixerPipelineConfig,
-  listTweetsParamConfig: ListTweetsParamConfig)
-    extends ProductPipelineConfig[HomeMixerRequest, ListTweetsQuery, urt.TimelineResponse] {
-
-  override val identifier: ProductPipelineIdentifier = ProductPipelineIdentifier("ListTweets")
-  override val product: request.Product = ListTweetsProduct
-  override val paramConfig: ProductParamConfig = listTweetsParamConfig
-  override val denyLoggedOutUsers: Boolean = false
-
-  override def pipelineQueryTransformer(
-    request: HomeMixerRequest,
-    params: Params
-  ): ListTweetsQuery = {
-    val context = request.productContext match {
-      case Some(context: ListTweetsProductContext) => context
-      case _ => throw PipelineFailure(BadRequest, "ListTweetsProductContext not found")
-    }
-
-    val debugOptions = request.debugParams.flatMap(_.debugOptions)
-
-    /**
-     * Unlike other clients, newly created tweets on Android have the sort index set to the current
-     * time instead of the top sort index + 1, so these tweets get stuck at the top of the timeline
-     * if subsequent timeline responses use the sort index from the previous response instead of
-     * the current time.
-     */
-    val pipelineCursor = request.serializedRequestCursor.flatMap { cursor =>
-      Try(UrtCursorSerializer.deserializeOrderedCursor(cursor))
-        .getOrElse(ChronologicalCursorUnmarshaller(RequestCursorSerializer.deserialize(cursor)))
-        .map {
-          case UrtOrderedCursor(_, id, Some(GapCursor), gapBoundaryId)
-              if id.isEmpty || gapBoundaryId.isEmpty =>
-            throw PipelineFailure(MalformedCursor, "Gap Cursor bounds not defined")
-          case topCursor @ UrtOrderedCursor(_, _, Some(TopCursor), _) =>
-            val queryTime = debugOptions.flatMap(_.requestTimeOverride).getOrElse(Time.now)
-            topCursor.copy(initialSortIndex = SortIndexBuilder.timeToId(queryTime))
-          case cursor => cursor
-        }
-    }
-
-    ListTweetsQuery(
-      params = params,
-      clientContext = request.clientContext,
-      features = None,
-      pipelineCursor = pipelineCursor,
-      requestedMaxResults = Some(params(ServerMaxResultsParam)),
-      debugOptions = debugOptions,
-      listId = context.listId,
-      deviceContext = context.deviceContext,
-      dspClientContext = context.dspClientContext
-    )
-  }
-
-  override def pipelines: Seq[PipelineConfig] = Seq(listTweetsMixerPipelineConfig)
-
-  override def pipelineSelector(query: ListTweetsQuery): ComponentIdentifier =
-    listTweetsMixerPipelineConfig.identifier
-
-  override val alerts: Seq[Alert] = Seq(
-    SuccessRateAlert(
-      notificationGroup = DefaultNotificationGroup,
-      warnPredicate = TriggerIfBelow(99.9, 20, 30),
-      criticalPredicate = TriggerIfBelow(99.9, 30, 30),
-    ),
-    LatencyAlert(
-      notificationGroup = DefaultNotificationGroup,
-      percentile = P99,
-      warnPredicate = TriggerIfLatencyAbove(300.millis, 15, 30),
-      criticalPredicate = TriggerIfLatencyAbove(400.millis, 15, 30)
-    ),
-    ThroughputAlert(
-      notificationGroup = DefaultNotificationGroup,
-      warnPredicate = TriggerIfAbove(3000),
-      criticalPredicate = TriggerIfAbove(4000)
-    ),
-    EmptyResponseRateAlert(
-      notificationGroup = DefaultNotificationGroup,
-      warnPredicate = TriggerIfAbove(65),
-      criticalPredicate = TriggerIfAbove(80)
-    )
-  )
-
-  override val debugAccessPolicies: Set[AccessPolicy] = DefaultHomeMixerAccessPolicy
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/ListTweetsTimelineServiceCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/ListTweetsTimelineServiceCandidatePipelineConfig.scala
deleted file mode 100644
index 1af95e873..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/ListTweetsTimelineServiceCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,59 +0,0 @@
-package com.twitter.home_mixer.product.list_tweets
-
-import com.twitter.home_mixer.candidate_pipeline.TimelineServiceResponseFeatureTransformer
-import com.twitter.home_mixer.marshaller.timelines.TimelineServiceCursorMarshaller
-import com.twitter.home_mixer.product.list_tweets.model.ListTweetsQuery
-import com.twitter.home_mixer.product.list_tweets.param.ListTweetsParam.ServerMaxResultsParam
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.component_library.candidate_source.timeline_service.TimelineServiceTweetCandidateSource
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.BaseCandidateSource
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.timelineservice.{thriftscala => t}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ListTweetsTimelineServiceCandidatePipelineConfig @Inject() (
-  timelineServiceTweetCandidateSource: TimelineServiceTweetCandidateSource)
-    extends CandidatePipelineConfig[ListTweetsQuery, t.TimelineQuery, t.Tweet, TweetCandidate] {
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("ListTweetsTimelineServiceTweets")
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[
-    ListTweetsQuery,
-    t.TimelineQuery
-  ] = { query =>
-    val timelineQueryOptions = t.TimelineQueryOptions(
-      contextualUserId = query.clientContext.userId,
-    )
-
-    t.TimelineQuery(
-      timelineType = t.TimelineType.List,
-      timelineId = query.listId,
-      maxCount = query.maxResults(ServerMaxResultsParam).toShort,
-      cursor2 = query.pipelineCursor.flatMap(TimelineServiceCursorMarshaller(_)),
-      options = Some(timelineQueryOptions),
-      timelineId2 = Some(t.TimelineId(t.TimelineType.List, query.listId, None))
-    )
-  }
-
-  override def candidateSource: BaseCandidateSource[t.TimelineQuery, t.Tweet] =
-    timelineServiceTweetCandidateSource
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[t.Tweet, TweetCandidate] = {
-    sourceResult => TweetCandidate(id = sourceResult.statusId)
-  }
-
-  override val featuresFromCandidateSourceTransformers: Seq[CandidateFeatureTransformer[t.Tweet]] =
-    Seq(TimelineServiceResponseFeatureTransformer)
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.7)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/decorator/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/decorator/BUILD.bazel
deleted file mode 100644
index 4258ffc36..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/decorator/BUILD.bazel
+++ /dev/null
@@ -1,15 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/decorator/builder",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/decorator/urt",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-        "timelines/src/main/scala/com/twitter/timelines/injection/scribe",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/decorator/ListConversationServiceCandidateDecorator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/decorator/ListConversationServiceCandidateDecorator.scala
deleted file mode 100644
index a02b628e8..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/decorator/ListConversationServiceCandidateDecorator.scala
+++ /dev/null
@@ -1,49 +0,0 @@
-package com.twitter.home_mixer.product.list_tweets.decorator
-
-import com.twitter.home_mixer.functional_component.decorator.builder.HomeConversationModuleMetadataBuilder
-import com.twitter.home_mixer.functional_component.decorator.builder.ListClientEventDetailsBuilder
-import com.twitter.home_mixer.model.HomeFeatures.ConversationModuleFocalTweetIdFeature
-import com.twitter.product_mixer.component_library.decorator.urt.UrtItemCandidateDecorator
-import com.twitter.product_mixer.component_library.decorator.urt.UrtMultipleModulesDecorator
-import com.twitter.product_mixer.component_library.decorator.urt.builder.item.tweet.TweetCandidateUrtItemBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.metadata.ClientEventInfoBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.timeline_module.StaticModuleDisplayTypeBuilder
-import com.twitter.product_mixer.component_library.decorator.urt.builder.timeline_module.TimelineModuleBuilder
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.model.marshalling.response.urt.EntryNamespace
-import com.twitter.product_mixer.core.model.marshalling.response.urt.timeline_module.VerticalConversation
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelines.injection.scribe.InjectionScribeUtil
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-
-object ListConversationServiceCandidateDecorator {
-
-  private val ConversationModuleNamespace = EntryNamespace("list-conversation")
-
-  def apply(): Some[UrtMultipleModulesDecorator[PipelineQuery, TweetCandidate, Long]] = {
-    val suggestType = st.SuggestType.OrganicListTweet
-    val component = InjectionScribeUtil.scribeComponent(suggestType).get
-    val clientEventInfoBuilder = ClientEventInfoBuilder(
-      component = component,
-      detailsBuilder = Some(ListClientEventDetailsBuilder(st.SuggestType.OrganicListTweet))
-    )
-    val tweetItemBuilder = TweetCandidateUrtItemBuilder(
-      clientEventInfoBuilder = clientEventInfoBuilder
-    )
-
-    val moduleBuilder = TimelineModuleBuilder(
-      entryNamespace = ConversationModuleNamespace,
-      clientEventInfoBuilder = clientEventInfoBuilder,
-      displayTypeBuilder = StaticModuleDisplayTypeBuilder(VerticalConversation),
-      metadataBuilder = Some(HomeConversationModuleMetadataBuilder())
-    )
-
-    Some(
-      UrtMultipleModulesDecorator(
-        urtItemCandidateDecorator = UrtItemCandidateDecorator(tweetItemBuilder),
-        moduleBuilder = moduleBuilder,
-        groupByKey = (_, _, candidateFeatures) =>
-          candidateFeatures.getOrElse(ConversationModuleFocalTweetIdFeature, None)
-      ))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/decorator/builder/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/decorator/builder/BUILD.bazel
deleted file mode 100644
index 3ed81a196..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/decorator/builder/BUILD.bazel
+++ /dev/null
@@ -1,10 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/decorator/urt/builder",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/model/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/model/BUILD.bazel
deleted file mode 100644
index fac4ba949..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/model/BUILD.bazel
+++ /dev/null
@@ -1,19 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/param",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/cursor",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/query/ads",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-    ],
-    exports = [
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/cursor",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/query/ads",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/model/ListTweetsQuery.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/model/ListTweetsQuery.scala
deleted file mode 100644
index ce8c73c0a..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/model/ListTweetsQuery.scala
+++ /dev/null
@@ -1,38 +0,0 @@
-package com.twitter.home_mixer.product.list_tweets.model
-
-import com.twitter.adserver.thriftscala.HomeTimelineType
-import com.twitter.adserver.thriftscala.TimelineRequestParams
-import com.twitter.dspbidder.commons.{thriftscala => dsp}
-import com.twitter.home_mixer.model.HomeAdsQuery
-import com.twitter.home_mixer.model.request.DeviceContext
-import com.twitter.home_mixer.model.request.HasListId
-import com.twitter.home_mixer.model.request.ListTweetsProduct
-import com.twitter.product_mixer.component_library.model.cursor.UrtOrderedCursor
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.marshalling.request._
-import com.twitter.product_mixer.core.pipeline.HasPipelineCursor
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelines.configapi.Params
-
-case class ListTweetsQuery(
-  override val params: Params,
-  override val clientContext: ClientContext,
-  override val pipelineCursor: Option[UrtOrderedCursor],
-  override val requestedMaxResults: Option[Int],
-  override val debugOptions: Option[DebugOptions],
-  override val features: Option[FeatureMap],
-  override val listId: Long,
-  override val deviceContext: Option[DeviceContext],
-  override val dspClientContext: Option[dsp.DspClientContext])
-    extends PipelineQuery
-    with HasPipelineCursor[UrtOrderedCursor]
-    with HasListId
-    with HomeAdsQuery {
-  override val product: Product = ListTweetsProduct
-
-  override def withFeatureMap(features: FeatureMap): ListTweetsQuery =
-    copy(features = Some(features))
-
-  override val timelineRequestParams: Option[TimelineRequestParams] =
-    Some(TimelineRequestParams(homeTimelineType = Some(HomeTimelineType.HomeLatest)))
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/param/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/param/BUILD.bazel
deleted file mode 100644
index 18867ad9e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/param/BUILD.bazel
+++ /dev/null
@@ -1,12 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/javax/inject:javax.inject",
-        "configapi/configapi-core/src/main/scala/com/twitter/timelines/configapi",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param/decider",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/param/ListTweetsParam.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/param/ListTweetsParam.scala
deleted file mode 100644
index 827d29f10..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/param/ListTweetsParam.scala
+++ /dev/null
@@ -1,22 +0,0 @@
-package com.twitter.home_mixer.product.list_tweets.param
-
-import com.twitter.timelines.configapi.FSBoundedParam
-import com.twitter.timelines.configapi.FSParam
-
-object ListTweetsParam {
-  val SupportedClientFSName = "list_tweets_supported_client"
-
-  object EnableAdsCandidatePipelineParam
-      extends FSParam[Boolean](
-        name = "list_tweets_enable_ads",
-        default = false
-      )
-
-  object ServerMaxResultsParam
-      extends FSBoundedParam[Int](
-        name = "list_tweets_server_max_results",
-        default = 100,
-        min = 1,
-        max = 500
-      )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/param/ListTweetsParamConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/param/ListTweetsParamConfig.scala
deleted file mode 100644
index 01575db92..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/list_tweets/param/ListTweetsParamConfig.scala
+++ /dev/null
@@ -1,23 +0,0 @@
-package com.twitter.home_mixer.product.list_tweets.param
-
-import com.twitter.home_mixer.param.decider.DeciderKey
-import com.twitter.home_mixer.product.list_tweets.param.ListTweetsParam.EnableAdsCandidatePipelineParam
-import com.twitter.home_mixer.product.list_tweets.param.ListTweetsParam.ServerMaxResultsParam
-import com.twitter.home_mixer.product.list_tweets.param.ListTweetsParam.SupportedClientFSName
-import com.twitter.product_mixer.core.product.ProductParamConfig
-import com.twitter.servo.decider.DeciderKeyName
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ListTweetsParamConfig @Inject() () extends ProductParamConfig {
-  override val enabledDeciderKey: DeciderKeyName = DeciderKey.EnableListTweetsProduct
-  override val supportedClientFSName: String = SupportedClientFSName
-
-  override val booleanFSOverrides =
-    Seq(EnableAdsCandidatePipelineParam)
-
-  override val boundedIntFSOverrides = Seq(
-    ServerMaxResultsParam
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/BUILD.bazel
deleted file mode 100644
index 4bbbec94d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/BUILD.bazel
+++ /dev/null
@@ -1,40 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "explore/explore-ranker/thrift/src/main/thrift:thrift-scala",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/marshaller",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scoring_pipeline",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/selector",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/side_effect",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/service",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/async",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/impressed_tweets",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/param_gated",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/social_graph",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/filter",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/premarshaller/urt",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/selector",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/side_effect",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/product",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/recommendation",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/ScoredTweetsProductPipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/ScoredTweetsProductPipelineConfig.scala
deleted file mode 100644
index 27278db0c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/ScoredTweetsProductPipelineConfig.scala
+++ /dev/null
@@ -1,74 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets
-
-import com.twitter.home_mixer.model.HomeFeatures.ServedTweetIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.TimelineServiceTweetsFeature
-import com.twitter.home_mixer.model.request.HomeMixerRequest
-import com.twitter.home_mixer.model.request.ScoredTweetsProduct
-import com.twitter.home_mixer.model.request.ScoredTweetsProductContext
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.ServerMaxResultsParam
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParamConfig
-import com.twitter.home_mixer.service.HomeMixerAccessPolicy.DefaultHomeMixerAccessPolicy
-import com.twitter.home_mixer.{thriftscala => t}
-import com.twitter.product_mixer.component_library.premarshaller.cursor.UrtCursorSerializer
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.common.access_policy.AccessPolicy
-import com.twitter.product_mixer.core.model.common.identifier.ComponentIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.ProductPipelineIdentifier
-import com.twitter.product_mixer.core.model.marshalling.request.Product
-import com.twitter.product_mixer.core.pipeline.PipelineConfig
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.BadRequest
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.PipelineFailure
-import com.twitter.product_mixer.core.pipeline.product.ProductPipelineConfig
-import com.twitter.product_mixer.core.product.ProductParamConfig
-import com.twitter.timelines.configapi.Params
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ScoredTweetsProductPipelineConfig @Inject() (
-  scoredTweetsRecommendationPipelineConfig: ScoredTweetsRecommendationPipelineConfig,
-  scoredTweetsParamConfig: ScoredTweetsParamConfig)
-    extends ProductPipelineConfig[HomeMixerRequest, ScoredTweetsQuery, t.ScoredTweets] {
-
-  override val identifier: ProductPipelineIdentifier = ProductPipelineIdentifier("ScoredTweets")
-
-  override val product: Product = ScoredTweetsProduct
-
-  override val paramConfig: ProductParamConfig = scoredTweetsParamConfig
-
-  override def pipelineQueryTransformer(
-    request: HomeMixerRequest,
-    params: Params
-  ): ScoredTweetsQuery = {
-    val context = request.productContext match {
-      case Some(context: ScoredTweetsProductContext) => context
-      case _ => throw PipelineFailure(BadRequest, "ScoredTweetsProductContext not found")
-    }
-
-    val featureMap = FeatureMapBuilder()
-      .add(ServedTweetIdsFeature, context.servedTweetIds.getOrElse(Seq.empty))
-      .add(TimelineServiceTweetsFeature, context.backfillTweetIds.getOrElse(Seq.empty))
-      .build()
-
-    ScoredTweetsQuery(
-      params = params,
-      clientContext = request.clientContext,
-      pipelineCursor =
-        request.serializedRequestCursor.flatMap(UrtCursorSerializer.deserializeOrderedCursor),
-      requestedMaxResults = Some(params(ServerMaxResultsParam)),
-      debugOptions = request.debugParams.flatMap(_.debugOptions),
-      features = Some(featureMap),
-      deviceContext = context.deviceContext,
-      seenTweetIds = context.seenTweetIds,
-      qualityFactorStatus = None
-    )
-  }
-
-  override val pipelines: Seq[PipelineConfig] = Seq(scoredTweetsRecommendationPipelineConfig)
-
-  override def pipelineSelector(query: ScoredTweetsQuery): ComponentIdentifier =
-    scoredTweetsRecommendationPipelineConfig.identifier
-
-  override val debugAccessPolicies: Set[AccessPolicy] = DefaultHomeMixerAccessPolicy
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/ScoredTweetsRecommendationPipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/ScoredTweetsRecommendationPipelineConfig.scala
deleted file mode 100644
index e3d50040b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/ScoredTweetsRecommendationPipelineConfig.scala
+++ /dev/null
@@ -1,340 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.functional_component.feature_hydrator.FeedbackHistoryQueryFeatureHydrator
-import com.twitter.home_mixer.functional_component.feature_hydrator.ImpressionBloomFilterQueryFeatureHydrator
-import com.twitter.home_mixer.functional_component.feature_hydrator.RealGraphInNetworkScoresQueryFeatureHydrator
-import com.twitter.home_mixer.functional_component.feature_hydrator.RequestQueryFeatureHydrator
-import com.twitter.home_mixer.functional_component.feature_hydrator.TweetImpressionsQueryFeatureHydrator
-import com.twitter.home_mixer.functional_component.filter.FeedbackFatigueFilter
-import com.twitter.home_mixer.functional_component.filter.PreviouslySeenTweetsFilter
-import com.twitter.home_mixer.functional_component.filter.PreviouslyServedTweetsFilter
-import com.twitter.home_mixer.functional_component.filter.RejectTweetFromViewerFilter
-import com.twitter.home_mixer.functional_component.filter.RetweetDeduplicationFilter
-import com.twitter.home_mixer.functional_component.side_effect.PublishClientSentImpressionsEventBusSideEffect
-import com.twitter.home_mixer.functional_component.side_effect.PublishClientSentImpressionsManhattanSideEffect
-import com.twitter.home_mixer.functional_component.side_effect.PublishImpressionBloomFilterSideEffect
-import com.twitter.home_mixer.functional_component.side_effect.UpdateLastNonPollingTimeSideEffect
-import com.twitter.home_mixer.model.HomeFeatures.ExclusiveConversationAuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsSupportAccountReplyFeature
-import com.twitter.home_mixer.model.HomeFeatures.ScoreFeature
-import com.twitter.home_mixer.param.HomeGlobalParams.EnableImpressionBloomFilter
-import com.twitter.home_mixer.param.HomeMixerFlagName.TargetFetchLatency
-import com.twitter.home_mixer.param.HomeMixerFlagName.TargetScoringLatency
-import com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.CachedScoredTweetsCandidatePipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.ScoredTweetsBackfillCandidatePipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.ScoredTweetsFrsCandidatePipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.ScoredTweetsInNetworkCandidatePipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.ScoredTweetsListsCandidatePipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.ScoredTweetsPopularVideosCandidatePipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.ScoredTweetsTweetMixerCandidatePipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.ScoredTweetsUtegCandidatePipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.CachedScoredTweetsQueryFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.ListIdsQueryFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.RealGraphQueryFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.RealTimeInteractionGraphUserVertexQueryFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.RequestTimeQueryFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.TwhinUserEngagementQueryFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.TwhinUserFollowQueryFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.UserLanguagesFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.UserStateQueryFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates.PartAAggregateQueryFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates.PartBAggregateQueryFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.real_time_aggregates.UserEngagementRealTimeAggregatesFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.filter.DuplicateConversationTweetsFilter
-import com.twitter.home_mixer.product.scored_tweets.filter.OutOfNetworkCompetitorFilter
-import com.twitter.home_mixer.product.scored_tweets.filter.OutOfNetworkCompetitorURLFilter
-import com.twitter.home_mixer.product.scored_tweets.filter.ScoredTweetsSocialContextFilter
-import com.twitter.home_mixer.product.scored_tweets.marshaller.ScoredTweetsResponseDomainMarshaller
-import com.twitter.home_mixer.product.scored_tweets.marshaller.ScoredTweetsResponseTransportMarshaller
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsResponse
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.MaxInNetworkResultsParam
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.MaxOutOfNetworkResultsParam
-import com.twitter.home_mixer.product.scored_tweets.scoring_pipeline.ScoredTweetsHeuristicScoringPipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.scoring_pipeline.ScoredTweetsModelScoringPipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.selector.KeepBestOutOfNetworkCandidatePerAuthorPerSuggestType
-import com.twitter.home_mixer.product.scored_tweets.side_effect.CachedScoredTweetsSideEffect
-import com.twitter.home_mixer.product.scored_tweets.side_effect.ScribeScoredCandidatesSideEffect
-import com.twitter.home_mixer.product.scored_tweets.side_effect.ScribeServedCommonFeaturesAndCandidateFeaturesSideEffect
-import com.twitter.home_mixer.{thriftscala => t}
-import com.twitter.inject.annotations.Flag
-import com.twitter.product_mixer.component_library.feature_hydrator.query.async.AsyncQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.feature_hydrator.query.impressed_tweets.ImpressedTweetsQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.feature_hydrator.query.param_gated.ParamGatedQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.SGSFollowedUsersQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.filter.PredicateFeatureFilter
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.component_library.selector.DropDuplicateCandidates
-import com.twitter.product_mixer.component_library.selector.DropFilteredMaxCandidates
-import com.twitter.product_mixer.component_library.selector.DropMaxCandidates
-import com.twitter.product_mixer.component_library.selector.IdAndClassDuplicationKey
-import com.twitter.product_mixer.component_library.selector.InsertAppendResults
-import com.twitter.product_mixer.component_library.selector.PickFirstCandidateMerger
-import com.twitter.product_mixer.component_library.selector.UpdateSortCandidates
-import com.twitter.product_mixer.component_library.selector.sorter.FeatureValueSorter
-import com.twitter.product_mixer.core.functional_component.common.AllExceptPipelines
-import com.twitter.product_mixer.core.functional_component.common.AllPipelines
-import com.twitter.product_mixer.core.functional_component.configapi.StaticParam
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.marshaller.TransportMarshaller
-import com.twitter.product_mixer.core.functional_component.premarshaller.DomainMarshaller
-import com.twitter.product_mixer.core.functional_component.selector.Selector
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.ComponentIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.RecommendationPipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.ScoringPipelineIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.ItemCandidateWithDetails
-import com.twitter.product_mixer.core.pipeline.FailOpenPolicy
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.product_mixer.core.pipeline.recommendation.RecommendationPipelineConfig
-import com.twitter.product_mixer.core.pipeline.scoring.ScoringPipelineConfig
-import com.twitter.product_mixer.core.quality_factor.BoundsWithDefault
-import com.twitter.product_mixer.core.quality_factor.LinearLatencyQualityFactorConfig
-import com.twitter.product_mixer.core.quality_factor.QualityFactorConfig
-import com.twitter.util.Duration
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ScoredTweetsRecommendationPipelineConfig @Inject() (
-  scoredTweetsInNetworkCandidatePipelineConfig: ScoredTweetsInNetworkCandidatePipelineConfig,
-  scoredTweetsUtegCandidatePipelineConfig: ScoredTweetsUtegCandidatePipelineConfig,
-  scoredTweetsTweetMixerCandidatePipelineConfig: ScoredTweetsTweetMixerCandidatePipelineConfig,
-  scoredTweetsFrsCandidatePipelineConfig: ScoredTweetsFrsCandidatePipelineConfig,
-  scoredTweetsListsCandidatePipelineConfig: ScoredTweetsListsCandidatePipelineConfig,
-  scoredTweetsPopularVideosCandidatePipelineConfig: ScoredTweetsPopularVideosCandidatePipelineConfig,
-  scoredTweetsBackfillCandidatePipelineConfig: ScoredTweetsBackfillCandidatePipelineConfig,
-  cachedScoredTweetsCandidatePipelineConfig: CachedScoredTweetsCandidatePipelineConfig,
-  requestQueryFeatureHydrator: RequestQueryFeatureHydrator[ScoredTweetsQuery],
-  requestTimeQueryFeatureHydrator: RequestTimeQueryFeatureHydrator,
-  realTimeInteractionGraphUserVertexQueryFeatureHydrator: RealTimeInteractionGraphUserVertexQueryFeatureHydrator,
-  userStateQueryFeatureHydrator: UserStateQueryFeatureHydrator,
-  userEngagementRealTimeAggregatesFeatureHydrator: UserEngagementRealTimeAggregatesFeatureHydrator,
-  twhinUserEngagementQueryFeatureHydrator: TwhinUserEngagementQueryFeatureHydrator,
-  twhinUserFollowQueryFeatureHydrator: TwhinUserFollowQueryFeatureHydrator,
-  cachedScoredTweetsQueryFeatureHydrator: CachedScoredTweetsQueryFeatureHydrator,
-  sgsFollowedUsersQueryFeatureHydrator: SGSFollowedUsersQueryFeatureHydrator,
-  scoredTweetsModelScoringPipelineConfig: ScoredTweetsModelScoringPipelineConfig,
-  impressionBloomFilterQueryFeatureHydrator: ImpressionBloomFilterQueryFeatureHydrator[
-    ScoredTweetsQuery
-  ],
-  manhattanTweetImpressionsQueryFeatureHydrator: TweetImpressionsQueryFeatureHydrator[
-    ScoredTweetsQuery
-  ],
-  memcacheTweetImpressionsQueryFeatureHydrator: ImpressedTweetsQueryFeatureHydrator,
-  listIdsQueryFeatureHydrator: ListIdsQueryFeatureHydrator,
-  feedbackHistoryQueryFeatureHydrator: FeedbackHistoryQueryFeatureHydrator,
-  publishClientSentImpressionsEventBusSideEffect: PublishClientSentImpressionsEventBusSideEffect,
-  publishClientSentImpressionsManhattanSideEffect: PublishClientSentImpressionsManhattanSideEffect,
-  publishImpressionBloomFilterSideEffect: PublishImpressionBloomFilterSideEffect,
-  realGraphInNetworkScoresQueryFeatureHydrator: RealGraphInNetworkScoresQueryFeatureHydrator,
-  realGraphQueryFeatureHydrator: RealGraphQueryFeatureHydrator,
-  userLanguagesFeatureHydrator: UserLanguagesFeatureHydrator,
-  partAAggregateQueryFeatureHydrator: PartAAggregateQueryFeatureHydrator,
-  partBAggregateQueryFeatureHydrator: PartBAggregateQueryFeatureHydrator,
-  cachedScoredTweetsSideEffect: CachedScoredTweetsSideEffect,
-  scribeScoredCandidatesSideEffect: ScribeScoredCandidatesSideEffect,
-  scribeServedCommonFeaturesAndCandidateFeaturesSideEffect: ScribeServedCommonFeaturesAndCandidateFeaturesSideEffect,
-  updateLastNonPollingTimeSideEffect: UpdateLastNonPollingTimeSideEffect[
-    ScoredTweetsQuery,
-    ScoredTweetsResponse
-  ],
-  @Flag(TargetFetchLatency) targetFetchLatency: Duration,
-  @Flag(TargetScoringLatency) targetScoringLatency: Duration)
-    extends RecommendationPipelineConfig[
-      ScoredTweetsQuery,
-      TweetCandidate,
-      ScoredTweetsResponse,
-      t.ScoredTweetsResponse
-    ] {
-
-  override val identifier: RecommendationPipelineIdentifier =
-    RecommendationPipelineIdentifier("ScoredTweets")
-
-  private val SubscriptionReplyFilterId = "SubscriptionReply"
-  private val MaxBackfillTweets = 50
-
-  private val scoringStep = RecommendationPipelineConfig.scoringPipelinesStep
-
-  override val fetchQueryFeatures: Seq[QueryFeatureHydrator[ScoredTweetsQuery]] = Seq(
-    requestQueryFeatureHydrator,
-    realGraphInNetworkScoresQueryFeatureHydrator,
-    cachedScoredTweetsQueryFeatureHydrator,
-    sgsFollowedUsersQueryFeatureHydrator,
-    ParamGatedQueryFeatureHydrator(
-      EnableImpressionBloomFilter,
-      impressionBloomFilterQueryFeatureHydrator
-    ),
-    manhattanTweetImpressionsQueryFeatureHydrator,
-    memcacheTweetImpressionsQueryFeatureHydrator,
-    listIdsQueryFeatureHydrator,
-    userStateQueryFeatureHydrator,
-    AsyncQueryFeatureHydrator(scoringStep, feedbackHistoryQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(scoringStep, realGraphQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(scoringStep, requestTimeQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(scoringStep, userLanguagesFeatureHydrator),
-    AsyncQueryFeatureHydrator(scoringStep, userEngagementRealTimeAggregatesFeatureHydrator),
-    AsyncQueryFeatureHydrator(scoringStep, realTimeInteractionGraphUserVertexQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(scoringStep, twhinUserFollowQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(scoringStep, twhinUserEngagementQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(scoringStep, partAAggregateQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(scoringStep, partBAggregateQueryFeatureHydrator),
-  )
-
-  override val candidatePipelines: Seq[
-    CandidatePipelineConfig[ScoredTweetsQuery, _, _, TweetCandidate]
-  ] = Seq(
-    cachedScoredTweetsCandidatePipelineConfig,
-    scoredTweetsInNetworkCandidatePipelineConfig,
-    scoredTweetsUtegCandidatePipelineConfig,
-    scoredTweetsTweetMixerCandidatePipelineConfig,
-    scoredTweetsFrsCandidatePipelineConfig,
-    scoredTweetsListsCandidatePipelineConfig,
-    scoredTweetsPopularVideosCandidatePipelineConfig,
-    scoredTweetsBackfillCandidatePipelineConfig
-  )
-
-  override val postCandidatePipelinesSelectors: Seq[Selector[ScoredTweetsQuery]] = Seq(
-    DropDuplicateCandidates(
-      pipelineScope = AllPipelines,
-      duplicationKey = IdAndClassDuplicationKey,
-      mergeStrategy = PickFirstCandidateMerger
-    ),
-    InsertAppendResults(AllPipelines)
-  )
-
-  override val globalFilters: Seq[Filter[ScoredTweetsQuery, TweetCandidate]] = Seq(
-    // sort these to have the "cheaper" filters run first
-    RejectTweetFromViewerFilter,
-    RetweetDeduplicationFilter,
-    PreviouslySeenTweetsFilter,
-    PreviouslyServedTweetsFilter,
-    PredicateFeatureFilter.fromPredicate(
-      FilterIdentifier(SubscriptionReplyFilterId),
-      shouldKeepCandidate = { features =>
-        features.getOrElse(InReplyToTweetIdFeature, None).isEmpty ||
-        features.getOrElse(ExclusiveConversationAuthorIdFeature, None).isEmpty
-      }
-    ),
-    FeedbackFatigueFilter
-  )
-
-  override val candidatePipelineFailOpenPolicies: Map[CandidatePipelineIdentifier, FailOpenPolicy] =
-    Map(
-      cachedScoredTweetsCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-      scoredTweetsInNetworkCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-      scoredTweetsUtegCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-      scoredTweetsTweetMixerCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-      scoredTweetsFrsCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-      scoredTweetsListsCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-      scoredTweetsPopularVideosCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-      scoredTweetsBackfillCandidatePipelineConfig.identifier -> FailOpenPolicy.Always
-    )
-
-  override val scoringPipelineFailOpenPolicies: Map[ScoringPipelineIdentifier, FailOpenPolicy] =
-    Map(
-      ScoredTweetsHeuristicScoringPipelineConfig.identifier -> FailOpenPolicy.Always
-    )
-
-  private val candidatePipelineQualityFactorConfig = LinearLatencyQualityFactorConfig(
-    qualityFactorBounds = BoundsWithDefault(minInclusive = 0.1, maxInclusive = 1.0, default = 0.95),
-    initialDelay = 60.seconds,
-    targetLatency = targetFetchLatency,
-    targetLatencyPercentile = 95.0,
-    delta = 0.00125
-  )
-
-  private val scoringPipelineQualityFactorConfig =
-    candidatePipelineQualityFactorConfig.copy(targetLatency = targetScoringLatency)
-
-  override val qualityFactorConfigs: Map[ComponentIdentifier, QualityFactorConfig] = Map(
-    // candidate pipelines
-    scoredTweetsInNetworkCandidatePipelineConfig.identifier -> candidatePipelineQualityFactorConfig,
-    scoredTweetsUtegCandidatePipelineConfig.identifier -> candidatePipelineQualityFactorConfig,
-    scoredTweetsTweetMixerCandidatePipelineConfig.identifier -> candidatePipelineQualityFactorConfig,
-    scoredTweetsFrsCandidatePipelineConfig.identifier -> candidatePipelineQualityFactorConfig,
-    scoredTweetsListsCandidatePipelineConfig.identifier -> candidatePipelineQualityFactorConfig,
-    scoredTweetsPopularVideosCandidatePipelineConfig.identifier -> candidatePipelineQualityFactorConfig,
-    scoredTweetsBackfillCandidatePipelineConfig.identifier -> candidatePipelineQualityFactorConfig,
-    // scoring pipelines
-    scoredTweetsModelScoringPipelineConfig.identifier -> scoringPipelineQualityFactorConfig,
-  )
-
-  override val scoringPipelines: Seq[ScoringPipelineConfig[ScoredTweetsQuery, TweetCandidate]] =
-    Seq(
-      // scoring pipeline - run on non-cached candidates only since cached ones are already scored
-      scoredTweetsModelScoringPipelineConfig,
-      // re-scoring pipeline - run on all candidates since these are request specific
-      ScoredTweetsHeuristicScoringPipelineConfig
-    )
-
-  override val postScoringFilters = Seq(
-    ScoredTweetsSocialContextFilter,
-    OutOfNetworkCompetitorFilter,
-    OutOfNetworkCompetitorURLFilter,
-    DuplicateConversationTweetsFilter,
-    PredicateFeatureFilter.fromPredicate(
-      FilterIdentifier("IsSupportAccountReply"),
-      shouldKeepCandidate = { features =>
-        !features.getOrElse(IsSupportAccountReplyFeature, false)
-      })
-  )
-
-  override val resultSelectors: Seq[Selector[ScoredTweetsQuery]] = Seq(
-    KeepBestOutOfNetworkCandidatePerAuthorPerSuggestType(AllPipelines),
-    UpdateSortCandidates(AllPipelines, FeatureValueSorter.descending(ScoreFeature)),
-    DropFilteredMaxCandidates(
-      pipelineScope =
-        AllExceptPipelines(Set(scoredTweetsBackfillCandidatePipelineConfig.identifier)),
-      filter = {
-        case ItemCandidateWithDetails(_, _, features) =>
-          features.getOrElse(InNetworkFeature, false)
-        case _ => false
-      },
-      maxSelectionsParam = MaxInNetworkResultsParam
-    ),
-    DropFilteredMaxCandidates(
-      pipelineScope = AllPipelines,
-      filter = {
-        case ItemCandidateWithDetails(_, _, features) =>
-          !features.getOrElse(InNetworkFeature, false)
-        case _ => false
-      },
-      maxSelectionsParam = MaxOutOfNetworkResultsParam
-    ),
-    DropMaxCandidates(
-      candidatePipeline = scoredTweetsBackfillCandidatePipelineConfig.identifier,
-      maxSelectionsParam = StaticParam(MaxBackfillTweets)
-    ),
-    InsertAppendResults(AllPipelines)
-  )
-
-  override val resultSideEffects: Seq[
-    PipelineResultSideEffect[ScoredTweetsQuery, ScoredTweetsResponse]
-  ] = Seq(
-    cachedScoredTweetsSideEffect,
-    publishClientSentImpressionsEventBusSideEffect,
-    publishClientSentImpressionsManhattanSideEffect,
-    publishImpressionBloomFilterSideEffect,
-    scribeScoredCandidatesSideEffect,
-    scribeServedCommonFeaturesAndCandidateFeaturesSideEffect,
-    updateLastNonPollingTimeSideEffect
-  )
-
-  override val domainMarshaller: DomainMarshaller[
-    ScoredTweetsQuery,
-    ScoredTweetsResponse
-  ] = ScoredTweetsResponseDomainMarshaller
-
-  override val transportMarshaller: TransportMarshaller[
-    ScoredTweetsResponse,
-    t.ScoredTweetsResponse
-  ] = ScoredTweetsResponseTransportMarshaller
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/BUILD.bazel
deleted file mode 100644
index c5bb294a1..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/BUILD.bazel
+++ /dev/null
@@ -1,37 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "explore/explore-ranker/thrift/src/main/thrift:thrift-scala",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_source",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/gate",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/explore_ranker",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/timeline_ranker",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/tweet_mixer",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/filter",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/gate",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/marshaller/request",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/candidate",
-        "src/thrift/com/twitter/timelineranker:thrift-scala",
-        "tweet-mixer/thrift/src/main/thrift:thrift-scala",
-    ],
-    exports = [
-        "src/thrift/com/twitter/timelineranker:thrift-scala",
-        "tweet-mixer/thrift/src/main/thrift:thrift-scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/CachedScoredTweetsCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/CachedScoredTweetsCandidatePipelineConfig.scala
deleted file mode 100644
index 65a42cbee..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/CachedScoredTweetsCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,53 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.candidate_pipeline
-
-import com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.CachedScoredTweetsCandidatePipelineConfig._
-import com.twitter.home_mixer.product.scored_tweets.candidate_source.CachedScoredTweetsCandidateSource
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.home_mixer.product.scored_tweets.response_transformer.CachedScoredTweetsResponseFeatureTransformer
-import com.twitter.home_mixer.{thriftscala => hmt}
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.BaseCandidateSource
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Candidate Pipeline Config that fetches tweets from Scored Tweets Cache.
- */
-@Singleton
-class CachedScoredTweetsCandidatePipelineConfig @Inject() (
-  cachedScoredTweetsCandidateSource: CachedScoredTweetsCandidateSource)
-    extends CandidatePipelineConfig[
-      ScoredTweetsQuery,
-      ScoredTweetsQuery,
-      hmt.ScoredTweet,
-      TweetCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier = Identifier
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[
-    ScoredTweetsQuery,
-    ScoredTweetsQuery
-  ] = identity
-
-  override val candidateSource: BaseCandidateSource[ScoredTweetsQuery, hmt.ScoredTweet] =
-    cachedScoredTweetsCandidateSource
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[hmt.ScoredTweet]
-  ] = Seq(CachedScoredTweetsResponseFeatureTransformer)
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    hmt.ScoredTweet,
-    TweetCandidate
-  ] = { sourceResult => TweetCandidate(id = sourceResult.tweetId) }
-}
-
-object CachedScoredTweetsCandidatePipelineConfig {
-  val Identifier: CandidatePipelineIdentifier = CandidatePipelineIdentifier("CachedScoredTweets")
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsBackfillCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsBackfillCandidatePipelineConfig.scala
deleted file mode 100644
index c34031c78..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsBackfillCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,94 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.candidate_pipeline
-
-import com.twitter.home_mixer.functional_component.filter.ReplyFilter
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.TimelineServiceTweetsFeature
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.TweetypieStaticEntitiesFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.gate.MinCachedTweetsGate
-import com.twitter.home_mixer.product.scored_tweets.gate.MinTimeSinceLastRequestGate
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CachedScoredTweets
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CandidatePipeline
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.EnableBackfillCandidatePipelineParam
-import com.twitter.home_mixer.product.scored_tweets.response_transformer.ScoredTweetsBackfillResponseFeatureTransformer
-import com.twitter.product_mixer.component_library.filter.PredicateFeatureFilter
-import com.twitter.product_mixer.component_library.gate.NonEmptySeqFeatureGate
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.CandidateSource
-import com.twitter.product_mixer.core.functional_component.candidate_source.PassthroughCandidateSource
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BaseCandidateFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.CandidateSourceIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.timelines.configapi.FSParam
-import com.twitter.timelines.configapi.decider.DeciderParam
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ScoredTweetsBackfillCandidatePipelineConfig @Inject() (
-  tweetypieStaticEntitiesHydrator: TweetypieStaticEntitiesFeatureHydrator)
-    extends CandidatePipelineConfig[
-      ScoredTweetsQuery,
-      ScoredTweetsQuery,
-      Long,
-      TweetCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("ScoredTweetsBackfill")
-
-  private val HasAuthorFilterId = "HasAuthor"
-
-  override val enabledDeciderParam: Option[DeciderParam[Boolean]] =
-    Some(CandidatePipeline.EnableBackfillParam)
-
-  override val supportedClientParam: Option[FSParam[Boolean]] =
-    Some(EnableBackfillCandidatePipelineParam)
-
-  override val gates: Seq[Gate[ScoredTweetsQuery]] =
-    Seq(
-      MinTimeSinceLastRequestGate,
-      NonEmptySeqFeatureGate(TimelineServiceTweetsFeature),
-      MinCachedTweetsGate(identifier, CachedScoredTweets.MinCachedTweetsParam)
-    )
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[
-    ScoredTweetsQuery,
-    ScoredTweetsQuery
-  ] = identity
-
-  override def candidateSource: CandidateSource[ScoredTweetsQuery, Long] =
-    PassthroughCandidateSource(
-      identifier = CandidateSourceIdentifier("ScoredTweetsBackfill"),
-      candidateExtractor = { query =>
-        query.features.map(_.getOrElse(TimelineServiceTweetsFeature, Seq.empty)).toSeq.flatten
-      }
-    )
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[Long]
-  ] = Seq(ScoredTweetsBackfillResponseFeatureTransformer)
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[Long, TweetCandidate] = {
-    sourceResult => TweetCandidate(id = sourceResult)
-  }
-
-  override val preFilterFeatureHydrationPhase1: Seq[
-    BaseCandidateFeatureHydrator[ScoredTweetsQuery, TweetCandidate, _]
-  ] = Seq(tweetypieStaticEntitiesHydrator)
-
-  override val filters: Seq[Filter[ScoredTweetsQuery, TweetCandidate]] = Seq(
-    ReplyFilter,
-    PredicateFeatureFilter.fromPredicate(
-      FilterIdentifier(HasAuthorFilterId),
-      shouldKeepCandidate = _.getOrElse(AuthorIdFeature, None).isDefined
-    )
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsFrsCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsFrsCandidatePipelineConfig.scala
deleted file mode 100644
index f25a839b7..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsFrsCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,72 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.candidate_pipeline
-
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.FrsSeedUsersQueryFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.gate.MinCachedTweetsGate
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CachedScoredTweets
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CandidatePipeline
-import com.twitter.home_mixer.product.scored_tweets.query_transformer.TimelineRankerFrsQueryTransformer
-import com.twitter.home_mixer.product.scored_tweets.response_transformer.ScoredTweetsFrsResponseFeatureTransformer
-import com.twitter.product_mixer.component_library.candidate_source.timeline_ranker.TimelineRankerRecapCandidateSource
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.BaseCandidateSource
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BaseQueryFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.timelineranker.{thriftscala => tlr}
-import com.twitter.timelines.configapi.decider.DeciderParam
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Candidate Pipeline Config that takes user recommendations from Follow Recommendation Service (FRS)
- * and makes a TimelineRanker->Earlybird query for tweet candidates from those users.
- * Additionally, the candidate pipeline hydrates followedByUserIds so that followed-by social proof
- * can be used.
- */
-@Singleton
-class ScoredTweetsFrsCandidatePipelineConfig @Inject() (
-  timelineRankerRecapCandidateSource: TimelineRankerRecapCandidateSource,
-  frsSeedUsersQueryFeatureHydrator: FrsSeedUsersQueryFeatureHydrator)
-    extends CandidatePipelineConfig[
-      ScoredTweetsQuery,
-      tlr.RecapQuery,
-      tlr.CandidateTweet,
-      TweetCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("ScoredTweetsFrs")
-
-  override val enabledDeciderParam: Option[DeciderParam[Boolean]] =
-    Some(CandidatePipeline.EnableFrsParam)
-
-  override val gates: Seq[Gate[ScoredTweetsQuery]] = Seq(
-    MinCachedTweetsGate(identifier, CachedScoredTweets.MinCachedTweetsParam)
-  )
-
-  override val queryFeatureHydration: Seq[
-    BaseQueryFeatureHydrator[ScoredTweetsQuery, _]
-  ] = Seq(frsSeedUsersQueryFeatureHydrator)
-
-  override val candidateSource: BaseCandidateSource[tlr.RecapQuery, tlr.CandidateTweet] =
-    timelineRankerRecapCandidateSource
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[
-    ScoredTweetsQuery,
-    tlr.RecapQuery
-  ] = TimelineRankerFrsQueryTransformer(identifier)
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[tlr.CandidateTweet]
-  ] = Seq(ScoredTweetsFrsResponseFeatureTransformer)
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    tlr.CandidateTweet,
-    TweetCandidate
-  ] = { candidate => TweetCandidate(candidate.tweet.get.id) }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsInNetworkCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsInNetworkCandidatePipelineConfig.scala
deleted file mode 100644
index 63bd1add8..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsInNetworkCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,82 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.candidate_pipeline
-
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.IsExtendedReplyFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.ReplyFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.RetweetSourceTweetFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.filter.RetweetSourceTweetRemovingFilter
-import com.twitter.home_mixer.product.scored_tweets.gate.MinCachedTweetsGate
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CachedScoredTweets
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CandidatePipeline
-import com.twitter.home_mixer.product.scored_tweets.query_transformer.TimelineRankerInNetworkQueryTransformer
-import com.twitter.home_mixer.product.scored_tweets.response_transformer.ScoredTweetsInNetworkResponseFeatureTransformer
-import com.twitter.product_mixer.component_library.candidate_source.timeline_ranker.TimelineRankerInNetworkCandidateSource
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.BaseCandidateSource
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BaseCandidateFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.timelineranker.{thriftscala => t}
-import com.twitter.timelines.configapi.decider.DeciderParam
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Candidate Pipeline Config to fetch in-network tweets from Timeline Ranker's Recycled source
- */
-@Singleton
-class ScoredTweetsInNetworkCandidatePipelineConfig @Inject() (
-  timelineRankerInNetworkCandidateSource: TimelineRankerInNetworkCandidateSource,
-  replyFeatureHydrator: ReplyFeatureHydrator)
-    extends CandidatePipelineConfig[
-      ScoredTweetsQuery,
-      t.RecapQuery,
-      t.CandidateTweet,
-      TweetCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("ScoredTweetsInNetwork")
-
-  override val enabledDeciderParam: Option[DeciderParam[Boolean]] =
-    Some(CandidatePipeline.EnableInNetworkParam)
-
-  override val gates: Seq[Gate[ScoredTweetsQuery]] = Seq(
-    MinCachedTweetsGate(identifier, CachedScoredTweets.MinCachedTweetsParam)
-  )
-
-  override val candidateSource: BaseCandidateSource[t.RecapQuery, t.CandidateTweet] =
-    timelineRankerInNetworkCandidateSource
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[
-    ScoredTweetsQuery,
-    t.RecapQuery
-  ] = TimelineRankerInNetworkQueryTransformer(identifier)
-
-  override val preFilterFeatureHydrationPhase1: Seq[
-    BaseCandidateFeatureHydrator[PipelineQuery, TweetCandidate, _]
-  ] = Seq(RetweetSourceTweetFeatureHydrator)
-
-  override def filters: Seq[Filter[ScoredTweetsQuery, TweetCandidate]] = Seq(
-    RetweetSourceTweetRemovingFilter
-  )
-
-  override val postFilterFeatureHydration: Seq[
-    BaseCandidateFeatureHydrator[PipelineQuery, TweetCandidate, _]
-  ] = Seq(IsExtendedReplyFeatureHydrator, replyFeatureHydrator)
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[t.CandidateTweet]
-  ] = Seq(ScoredTweetsInNetworkResponseFeatureTransformer)
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    t.CandidateTweet,
-    TweetCandidate
-  ] = { sourceResult => TweetCandidate(id = sourceResult.tweet.get.id) }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsListsCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsListsCandidatePipelineConfig.scala
deleted file mode 100644
index 1161a8278..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsListsCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,86 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.candidate_pipeline
-
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.TweetypieStaticEntitiesFeatureHydrator
-import com.twitter.home_mixer.functional_component.filter.ReplyFilter
-import com.twitter.home_mixer.functional_component.filter.RetweetFilter
-import com.twitter.home_mixer.product.scored_tweets.candidate_source.ListsCandidateSource
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.ListIdsFeature
-import com.twitter.home_mixer.product.scored_tweets.gate.MinCachedTweetsGate
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CachedScoredTweets
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CandidatePipeline
-import com.twitter.home_mixer.product.scored_tweets.response_transformer.ScoredTweetsListsResponseFeatureTransformer
-import com.twitter.product_mixer.component_library.gate.NonEmptySeqFeatureGate
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.CandidateSource
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BaseCandidateFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.timelines.configapi.decider.DeciderParam
-import com.twitter.timelineservice.{thriftscala => t}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ScoredTweetsListsCandidatePipelineConfig @Inject() (
-  listsCandidateSource: ListsCandidateSource,
-  tweetypieStaticEntitiesHydrator: TweetypieStaticEntitiesFeatureHydrator)
-    extends CandidatePipelineConfig[
-      ScoredTweetsQuery,
-      Seq[t.TimelineQuery],
-      t.Tweet,
-      TweetCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("ScoredTweetsLists")
-
-  private val MaxTweetsToFetchPerList = 20
-
-  override val enabledDeciderParam: Option[DeciderParam[Boolean]] =
-    Some(CandidatePipeline.EnableListsParam)
-
-  override val gates: Seq[Gate[ScoredTweetsQuery]] = Seq(
-    NonEmptySeqFeatureGate(ListIdsFeature),
-    MinCachedTweetsGate(identifier, CachedScoredTweets.MinCachedTweetsParam)
-  )
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[
-    ScoredTweetsQuery,
-    Seq[t.TimelineQuery]
-  ] = { query =>
-    val listIds = query.features.map(_.get(ListIdsFeature)).get
-    listIds.map { listId =>
-      t.TimelineQuery(
-        timelineType = t.TimelineType.List,
-        timelineId = listId,
-        maxCount = MaxTweetsToFetchPerList.toShort,
-        options = Some(t.TimelineQueryOptions(query.clientContext.userId)),
-        timelineId2 = Some(t.TimelineId(t.TimelineType.List, listId, None))
-      )
-    }
-  }
-
-  override def candidateSource: CandidateSource[Seq[t.TimelineQuery], t.Tweet] =
-    listsCandidateSource
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[t.Tweet]
-  ] = Seq(ScoredTweetsListsResponseFeatureTransformer)
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[t.Tweet, TweetCandidate] = {
-    sourceResult => TweetCandidate(id = sourceResult.statusId)
-  }
-
-  override val preFilterFeatureHydrationPhase1: Seq[
-    BaseCandidateFeatureHydrator[ScoredTweetsQuery, TweetCandidate, _]
-  ] = Seq(tweetypieStaticEntitiesHydrator)
-
-  override val filters: Seq[Filter[ScoredTweetsQuery, TweetCandidate]] =
-    Seq(ReplyFilter, RetweetFilter)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsPopularVideosCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsPopularVideosCandidatePipelineConfig.scala
deleted file mode 100644
index c8b28b0ff..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsPopularVideosCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,82 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.candidate_pipeline
-
-import com.twitter.explore_ranker.{thriftscala => ert}
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.TweetypieStaticEntitiesFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.gate.MinCachedTweetsGate
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CachedScoredTweets
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CandidatePipeline
-import com.twitter.home_mixer.product.scored_tweets.response_transformer.ScoredTweetsPopularVideosResponseFeatureTransformer
-import com.twitter.home_mixer.util.CachedScoredTweetsHelper
-import com.twitter.product_mixer.component_library.candidate_source.explore_ranker.ExploreRankerImmersiveRecsCandidateSource
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.BaseCandidateSource
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BaseCandidateFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.functional_component.marshaller.request.ClientContextMarshaller
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.timelines.configapi.decider.DeciderParam
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ScoredTweetsPopularVideosCandidatePipelineConfig @Inject() (
-  exploreRankerCandidateSource: ExploreRankerImmersiveRecsCandidateSource,
-  tweetypieStaticEntitiesFeatureHydrator: TweetypieStaticEntitiesFeatureHydrator)
-    extends CandidatePipelineConfig[
-      ScoredTweetsQuery,
-      ert.ExploreRankerRequest,
-      ert.ExploreTweetRecommendation,
-      TweetCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("ScoredTweetsPopularVideos")
-
-  private val MaxTweetsToFetch = 40
-
-  override val enabledDeciderParam: Option[DeciderParam[Boolean]] =
-    Some(CandidatePipeline.EnablePopularVideosParam)
-
-  override val gates: Seq[Gate[ScoredTweetsQuery]] = Seq(
-    MinCachedTweetsGate(identifier, CachedScoredTweets.MinCachedTweetsParam)
-  )
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[
-    ScoredTweetsQuery,
-    ert.ExploreRankerRequest
-  ] = { query =>
-    val excludedTweetIds = query.features.map(
-      CachedScoredTweetsHelper.tweetImpressionsAndCachedScoredTweets(_, identifier))
-
-    ert.ExploreRankerRequest(
-      clientContext = ClientContextMarshaller(query.clientContext),
-      product = ert.Product.HomeTimelineVideoInline,
-      productContext = Some(
-        ert.ProductContext.HomeTimelineVideoInline(ert.HomeTimelineVideoInline(excludedTweetIds))),
-      maxResults = Some(MaxTweetsToFetch)
-    )
-  }
-
-  override def candidateSource: BaseCandidateSource[
-    ert.ExploreRankerRequest,
-    ert.ExploreTweetRecommendation
-  ] = exploreRankerCandidateSource
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[ert.ExploreTweetRecommendation]
-  ] = Seq(ScoredTweetsPopularVideosResponseFeatureTransformer)
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    ert.ExploreTweetRecommendation,
-    TweetCandidate
-  ] = { sourceResult => TweetCandidate(id = sourceResult.tweetId) }
-
-  override val preFilterFeatureHydrationPhase1: Seq[
-    BaseCandidateFeatureHydrator[ScoredTweetsQuery, TweetCandidate, _]
-  ] = Seq(tweetypieStaticEntitiesFeatureHydrator)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsTweetMixerCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsTweetMixerCandidatePipelineConfig.scala
deleted file mode 100644
index df16e3f11..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsTweetMixerCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,100 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.candidate_pipeline
-
-import com.twitter.tweet_mixer.{thriftscala => t}
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.TweetypieStaticEntitiesFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.gate.MinCachedTweetsGate
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CachedScoredTweets
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CandidatePipeline
-import com.twitter.home_mixer.product.scored_tweets.response_transformer.ScoredTweetsTweetMixerResponseFeatureTransformer
-import com.twitter.home_mixer.util.CachedScoredTweetsHelper
-import com.twitter.product_mixer.component_library.candidate_source.tweet_mixer.TweetMixerCandidateSource
-import com.twitter.product_mixer.component_library.filter.PredicateFeatureFilter
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.BaseCandidateSource
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BaseCandidateFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.functional_component.marshaller.request.ClientContextMarshaller
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.timelines.configapi.decider.DeciderParam
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Candidate Pipeline Config that fetches tweets from TweetMixer.
- */
-@Singleton
-class ScoredTweetsTweetMixerCandidatePipelineConfig @Inject() (
-  tweetMixerCandidateSource: TweetMixerCandidateSource,
-  tweetypieStaticEntitiesFeatureHydrator: TweetypieStaticEntitiesFeatureHydrator)
-    extends CandidatePipelineConfig[
-      ScoredTweetsQuery,
-      t.TweetMixerRequest,
-      t.TweetResult,
-      TweetCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("ScoredTweetsTweetMixer")
-
-  val HasAuthorFilterId = "HasAuthor"
-
-  override val enabledDeciderParam: Option[DeciderParam[Boolean]] =
-    Some(CandidatePipeline.EnableTweetMixerParam)
-
-  override val gates: Seq[Gate[ScoredTweetsQuery]] = Seq(
-    MinCachedTweetsGate(identifier, CachedScoredTweets.MinCachedTweetsParam),
-  )
-
-  override val candidateSource: BaseCandidateSource[t.TweetMixerRequest, t.TweetResult] =
-    tweetMixerCandidateSource
-
-  private val MaxTweetsToFetch = 400
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[
-    ScoredTweetsQuery,
-    t.TweetMixerRequest
-  ] = { query =>
-    val maxCount = (query.getQualityFactorCurrentValue(identifier) * MaxTweetsToFetch).toInt
-
-    val excludedTweetIds = query.features.map(
-      CachedScoredTweetsHelper.tweetImpressionsAndCachedScoredTweets(_, identifier))
-
-    t.TweetMixerRequest(
-      clientContext = ClientContextMarshaller(query.clientContext),
-      product = t.Product.HomeRecommendedTweets,
-      productContext = Some(
-        t.ProductContext.HomeRecommendedTweetsProductContext(
-          t.HomeRecommendedTweetsProductContext(excludedTweetIds = excludedTweetIds.map(_.toSet)))),
-      maxResults = Some(maxCount)
-    )
-  }
-
-  override val preFilterFeatureHydrationPhase1: Seq[
-    BaseCandidateFeatureHydrator[ScoredTweetsQuery, TweetCandidate, _]
-  ] = Seq(tweetypieStaticEntitiesFeatureHydrator)
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[t.TweetResult]
-  ] = Seq(ScoredTweetsTweetMixerResponseFeatureTransformer)
-
-  override val filters: Seq[Filter[ScoredTweetsQuery, TweetCandidate]] = Seq(
-    PredicateFeatureFilter.fromPredicate(
-      FilterIdentifier(HasAuthorFilterId),
-      shouldKeepCandidate = _.getOrElse(AuthorIdFeature, None).isDefined
-    )
-  )
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    t.TweetResult,
-    TweetCandidate
-  ] = { sourceResult => TweetCandidate(id = sourceResult.tweetId) }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsUtegCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsUtegCandidatePipelineConfig.scala
deleted file mode 100644
index 9178d0789..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/ScoredTweetsUtegCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,62 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.candidate_pipeline
-
-import com.twitter.home_mixer.product.scored_tweets.gate.MinCachedTweetsGate
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CachedScoredTweets
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CandidatePipeline
-import com.twitter.home_mixer.product.scored_tweets.query_transformer.TimelineRankerUtegQueryTransformer
-import com.twitter.home_mixer.product.scored_tweets.response_transformer.ScoredTweetsUtegResponseFeatureTransformer
-import com.twitter.product_mixer.component_library.candidate_source.timeline_ranker.TimelineRankerUtegCandidateSource
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.BaseCandidateSource
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.timelineranker.{thriftscala => t}
-import com.twitter.timelines.configapi.decider.DeciderParam
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Candidate Pipeline Config that fetches tweets from the Timeline Ranker UTEG Candidate Source
- */
-@Singleton
-class ScoredTweetsUtegCandidatePipelineConfig @Inject() (
-  timelineRankerUtegCandidateSource: TimelineRankerUtegCandidateSource)
-    extends CandidatePipelineConfig[
-      ScoredTweetsQuery,
-      t.UtegLikedByTweetsQuery,
-      t.CandidateTweet,
-      TweetCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("ScoredTweetsUteg")
-
-  override val enabledDeciderParam: Option[DeciderParam[Boolean]] =
-    Some(CandidatePipeline.EnableUtegParam)
-
-  override val gates: Seq[Gate[ScoredTweetsQuery]] = Seq(
-    MinCachedTweetsGate(identifier, CachedScoredTweets.MinCachedTweetsParam)
-  )
-
-  override val candidateSource: BaseCandidateSource[t.UtegLikedByTweetsQuery, t.CandidateTweet] =
-    timelineRankerUtegCandidateSource
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[
-    ScoredTweetsQuery,
-    t.UtegLikedByTweetsQuery
-  ] = TimelineRankerUtegQueryTransformer(identifier)
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[t.CandidateTweet]
-  ] = Seq(ScoredTweetsUtegResponseFeatureTransformer)
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    t.CandidateTweet,
-    TweetCandidate
-  ] = { sourceResult => TweetCandidate(id = sourceResult.tweet.get.id) }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/earlybird/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/earlybird/BUILD.bazel
deleted file mode 100644
index 618c4a081..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/earlybird/BUILD.bazel
+++ /dev/null
@@ -1,21 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/candidate_source",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_source",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/gate",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/earlybird",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/earlybird",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/earlybird",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/filter",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/gate",
-        "src/thrift/com/twitter/search:earlybird-scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/earlybird/ScoredTweetsEarlybirdFrsCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/earlybird/ScoredTweetsEarlybirdFrsCandidatePipelineConfig.scala
deleted file mode 100644
index 0d59bf3ca..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/earlybird/ScoredTweetsEarlybirdFrsCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,69 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.earlybird
-
-import com.twitter.finagle.thrift.ClientId
-import com.twitter.home_mixer.functional_component.candidate_source.EarlybirdCandidateSource
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.FrsSeedUsersQueryFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.gate.MinCachedTweetsGate
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CachedScoredTweets
-import com.twitter.home_mixer.product.scored_tweets.query_transformer.earlybird.EarlybirdFrsQueryTransformer
-import com.twitter.home_mixer.product.scored_tweets.response_transformer.earlybird.ScoredTweetsEarlybirdFrsResponseFeatureTransformer
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.BaseCandidateSource
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BaseQueryFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.search.earlybird.{thriftscala => eb}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Candidate Pipeline Config that fetches tweets from the earlybird FRS Candidate Source
- */
-@Singleton
-class ScoredTweetsEarlybirdFrsCandidatePipelineConfig @Inject() (
-  earlybirdCandidateSource: EarlybirdCandidateSource,
-  frsSeedUsersQueryFeatureHydrator: FrsSeedUsersQueryFeatureHydrator,
-  clientId: ClientId)
-    extends CandidatePipelineConfig[
-      ScoredTweetsQuery,
-      eb.EarlybirdRequest,
-      eb.ThriftSearchResult,
-      TweetCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("ScoredTweetsEarlybirdFrs")
-
-  override val gates: Seq[Gate[ScoredTweetsQuery]] = Seq(
-    MinCachedTweetsGate(identifier, CachedScoredTweets.MinCachedTweetsParam)
-  )
-
-  override val queryFeatureHydration: Seq[
-    BaseQueryFeatureHydrator[ScoredTweetsQuery, _]
-  ] = Seq(frsSeedUsersQueryFeatureHydrator)
-
-  override val candidateSource: BaseCandidateSource[eb.EarlybirdRequest, eb.ThriftSearchResult] =
-    earlybirdCandidateSource
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[
-    ScoredTweetsQuery,
-    eb.EarlybirdRequest
-  ] = EarlybirdFrsQueryTransformer(identifier, clientId = Some(clientId.name))
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[eb.ThriftSearchResult]
-  ] = Seq(ScoredTweetsEarlybirdFrsResponseFeatureTransformer)
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    eb.ThriftSearchResult,
-    TweetCandidate
-  ] = { sourceResult => TweetCandidate(id = sourceResult.id) }
-
-  override def filters: Seq[Filter[ScoredTweetsQuery, TweetCandidate]] = Seq.empty
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/earlybird/ScoredTweetsEarlybirdInNetworkCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/earlybird/ScoredTweetsEarlybirdInNetworkCandidatePipelineConfig.scala
deleted file mode 100644
index acb26ce42..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline/earlybird/ScoredTweetsEarlybirdInNetworkCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,59 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.earlybird
-
-import com.twitter.finagle.thrift.ClientId
-import com.twitter.home_mixer.functional_component.candidate_source.EarlybirdCandidateSource
-import com.twitter.home_mixer.product.scored_tweets.gate.MinCachedTweetsGate
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CachedScoredTweets
-import com.twitter.home_mixer.product.scored_tweets.query_transformer.earlybird.EarlybirdInNetworkQueryTransformer
-import com.twitter.home_mixer.product.scored_tweets.response_transformer.earlybird.ScoredTweetsEarlybirdInNetworkResponseFeatureTransformer
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.BaseCandidateSource
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.search.earlybird.{thriftscala => eb}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Candidate Pipeline Config that fetches tweets from the earlybird InNetwork Candidate Source
- */
-@Singleton
-class ScoredTweetsEarlybirdInNetworkCandidatePipelineConfig @Inject() (
-  earlybirdCandidateSource: EarlybirdCandidateSource,
-  clientId: ClientId)
-    extends CandidatePipelineConfig[
-      ScoredTweetsQuery,
-      eb.EarlybirdRequest,
-      eb.ThriftSearchResult,
-      TweetCandidate
-    ] {
-
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("ScoredTweetsEarlybirdInNetwork")
-
-  override val gates: Seq[Gate[ScoredTweetsQuery]] = Seq(
-    MinCachedTweetsGate(identifier, CachedScoredTweets.MinCachedTweetsParam)
-  )
-
-  override val candidateSource: BaseCandidateSource[eb.EarlybirdRequest, eb.ThriftSearchResult] =
-    earlybirdCandidateSource
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[
-    ScoredTweetsQuery,
-    eb.EarlybirdRequest
-  ] = EarlybirdInNetworkQueryTransformer(identifier, clientId = Some(clientId.name))
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[eb.ThriftSearchResult]
-  ] = Seq(ScoredTweetsEarlybirdInNetworkResponseFeatureTransformer)
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    eb.ThriftSearchResult,
-    TweetCandidate
-  ] = { sourceResult => TweetCandidate(id = sourceResult.id) }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_source/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_source/BUILD.bazel
deleted file mode 100644
index 4461d8460..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_source/BUILD.bazel
+++ /dev/null
@@ -1,13 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-        "src/thrift/com/twitter/timelineservice:thrift-scala",
-        "stitch/stitch-timelineservice",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_source/CachedScoredTweetsCandidateSource.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_source/CachedScoredTweetsCandidateSource.scala
deleted file mode 100644
index a5f556e7c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_source/CachedScoredTweetsCandidateSource.scala
+++ /dev/null
@@ -1,24 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.candidate_source
-
-import com.twitter.home_mixer.util.CachedScoredTweetsHelper
-import com.twitter.home_mixer.{thriftscala => hmt}
-import com.twitter.product_mixer.core.functional_component.candidate_source.CandidateSource
-import com.twitter.product_mixer.core.model.common.identifier.CandidateSourceIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class CachedScoredTweetsCandidateSource @Inject() ()
-    extends CandidateSource[PipelineQuery, hmt.ScoredTweet] {
-
-  override val identifier: CandidateSourceIdentifier =
-    CandidateSourceIdentifier("CachedScoredTweets")
-
-  override def apply(request: PipelineQuery): Stitch[Seq[hmt.ScoredTweet]] = {
-    Stitch.value(
-      request.features.map(CachedScoredTweetsHelper.unseenCachedScoredTweets).getOrElse(Seq.empty))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_source/ListsCandidateSource.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_source/ListsCandidateSource.scala
deleted file mode 100644
index 395ac7da8..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_source/ListsCandidateSource.scala
+++ /dev/null
@@ -1,27 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.candidate_source
-
-import com.twitter.product_mixer.core.functional_component.candidate_source.CandidateSource
-import com.twitter.product_mixer.core.model.common.identifier.CandidateSourceIdentifier
-import com.twitter.stitch.Stitch
-import com.twitter.stitch.timelineservice.TimelineService
-import com.twitter.timelineservice.{thriftscala => tls}
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ListsCandidateSource @Inject() (timelineService: TimelineService)
-    extends CandidateSource[Seq[tls.TimelineQuery], tls.Tweet] {
-
-  override val identifier: CandidateSourceIdentifier = CandidateSourceIdentifier("Lists")
-
-  override def apply(requests: Seq[tls.TimelineQuery]): Stitch[Seq[tls.Tweet]] = {
-    val timelines = Stitch.traverse(requests) { request => timelineService.getTimeline(request) }
-
-    timelines.map {
-      _.flatMap {
-        _.entries.collect { case tls.TimelineEntry.Tweet(tweet) => tweet }
-      }
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/AncestorFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/AncestorFeatureHydrator.scala
deleted file mode 100644
index 9c5e8f3ab..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/AncestorFeatureHydrator.scala
+++ /dev/null
@@ -1,61 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.AncestorsFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.CandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.stitch.Stitch
-import com.twitter.tweetconvosvc.tweet_ancestor.{thriftscala => ta}
-import com.twitter.tweetconvosvc.{thriftscala => tcs}
-import com.twitter.util.Future
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class AncestorFeatureHydrator @Inject() (
-  conversationServiceClient: tcs.ConversationService.MethodPerEndpoint)
-    extends CandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("Ancestor")
-
-  override val features: Set[Feature[_, _]] = Set(AncestorsFeature)
-
-  private val DefaultFeatureMap = FeatureMapBuilder().add(AncestorsFeature, Seq.empty).build()
-
-  override def apply(
-    query: PipelineQuery,
-    candidate: TweetCandidate,
-    existingFeatures: FeatureMap
-  ): Stitch[FeatureMap] = OffloadFuturePools.offloadFuture {
-    if (existingFeatures.getOrElse(InReplyToTweetIdFeature, None).isDefined) {
-      val ancestorsRequest = tcs.GetAncestorsRequest(Seq(candidate.id))
-      conversationServiceClient.getAncestors(ancestorsRequest).map { getAncestorsResponse =>
-        val ancestors = getAncestorsResponse.ancestors.headOption
-          .collect {
-            case tcs.TweetAncestorsResult.TweetAncestors(ancestorsResult)
-                if ancestorsResult.nonEmpty =>
-              ancestorsResult.head.ancestors ++ getTruncatedRootTweet(ancestorsResult.head)
-          }.getOrElse(Seq.empty)
-
-        FeatureMapBuilder().add(AncestorsFeature, ancestors).build()
-      }
-    } else Future.value(DefaultFeatureMap)
-  }
-
-  private def getTruncatedRootTweet(
-    ancestors: ta.TweetAncestors,
-  ): Option[ta.TweetAncestor] = {
-    ancestors.conversationRootAuthorId.collect {
-      case rootAuthorId
-          if ancestors.state == ta.ReplyState.Partial &&
-            ancestors.ancestors.last.tweetId != ancestors.conversationId =>
-        ta.TweetAncestor(ancestors.conversationId, rootAuthorId)
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/AuthorFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/AuthorFeatureHydrator.scala
deleted file mode 100644
index c8dd6a934..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/AuthorFeatureHydrator.scala
+++ /dev/null
@@ -1,86 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.AuthorFeatureRepository
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.author_features.AuthorFeaturesAdapter
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.home_mixer.util.ObservedKeyValueResultHandler
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.servo.repository.KeyValueRepository
-import com.twitter.servo.repository.KeyValueResult
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.author_features.v1.{thriftjava => af}
-import com.twitter.util.Future
-import com.twitter.util.Try
-import javax.inject.Inject
-import javax.inject.Named
-import javax.inject.Singleton
-import scala.collection.JavaConverters._
-
-object AuthorFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class AuthorFeatureHydrator @Inject() (
-  @Named(AuthorFeatureRepository) client: KeyValueRepository[Seq[Long], Long, af.AuthorFeatures],
-  override val statsReceiver: StatsReceiver)
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate]
-    with ObservedKeyValueResultHandler {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("AuthorFeature")
-
-  override val features: Set[Feature[_, _]] = Set(AuthorFeature)
-
-  override val statScope: String = identifier.toString
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offloadFuture {
-    val possiblyAuthorIds = extractKeys(candidates)
-    val authorIds = possiblyAuthorIds.flatten
-
-    val response: Future[KeyValueResult[Long, af.AuthorFeatures]] =
-      if (authorIds.nonEmpty) client(authorIds)
-      else Future.value(KeyValueResult.empty)
-
-    response.map { result =>
-      possiblyAuthorIds.map { possiblyAuthorId =>
-        val value = observedGet(key = possiblyAuthorId, keyValueResult = result)
-        val transformedValue = postTransformer(value)
-
-        FeatureMapBuilder().add(AuthorFeature, transformedValue).build()
-      }
-    }
-  }
-
-  private def postTransformer(authorFeatures: Try[Option[af.AuthorFeatures]]): Try[DataRecord] = {
-    authorFeatures.map {
-      _.map { features => AuthorFeaturesAdapter.adaptToDataRecords(features).asScala.head }
-        .getOrElse(new DataRecord())
-    }
-  }
-
-  private def extractKeys(
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Seq[Option[Long]] = {
-    candidates.map { candidate =>
-      CandidatesUtil.getOriginalAuthorId(candidate.features)
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/AuthorIsCreatorFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/AuthorIsCreatorFeatureHydrator.scala
deleted file mode 100644
index cc66983cc..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/AuthorIsCreatorFeatureHydrator.scala
+++ /dev/null
@@ -1,79 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIsCreatorFeature
-import com.twitter.home_mixer.util.MissingKeyException
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.stitch.Stitch
-import com.twitter.strato.generated.client.audiencerewards.audienceRewardsService.GetSuperFollowEligibilityOnUserClientColumn
-import com.twitter.util.Throw
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class AuthorIsCreatorFeatureHydrator @Inject() (
-  getSuperFollowEligibilityOnUserClientColumn: GetSuperFollowEligibilityOnUserClientColumn,
-  statsReceiver: StatsReceiver)
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("AuthorIsCreator")
-
-  override val features: Set[Feature[_, _]] =
-    Set(AuthorIsCreatorFeature)
-
-  private val scopedStatsReceiver = statsReceiver.scope(getClass.getSimpleName)
-  private val keyFoundCounter = scopedStatsReceiver.counter("key/found")
-  private val keyFailureCounter = scopedStatsReceiver.counter("key/failure")
-
-  private val MissingKeyFeatureMap = FeatureMapBuilder()
-    .add(AuthorIsCreatorFeature, Throw(MissingKeyException))
-    .build()
-
-  private val DefaultFeatureMap = FeatureMapBuilder()
-    .add(AuthorIsCreatorFeature, false)
-    .build()
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = {
-    OffloadFuturePools.offloadStitch {
-      val authorIds = candidates.flatMap(_.features.getOrElse(AuthorIdFeature, None)).distinct
-      Stitch
-        .collect {
-          authorIds.map { authorId =>
-            getSuperFollowEligibilityOnUserClientColumn.fetcher
-              .fetch(authorId)
-              .map { authorId -> _.v }
-          }
-        }.map { authorIdsToIsCreator =>
-          val authorIdsToIsCreatorMap = authorIdsToIsCreator.toMap
-          candidates.map { candidate =>
-            candidate.features.getOrElse(AuthorIdFeature, None) match {
-              case Some(authorId) =>
-                authorIdsToIsCreatorMap.get(authorId) match {
-                  case Some(response) =>
-                    keyFoundCounter.incr()
-                    FeatureMapBuilder()
-                      .add(AuthorIsCreatorFeature, response.getOrElse(false)).build()
-                  case _ =>
-                    keyFailureCounter.incr()
-                    DefaultFeatureMap
-                }
-              case _ => MissingKeyFeatureMap
-            }
-          }
-        }
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/BUILD.bazel
deleted file mode 100644
index 58a566de8..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/BUILD.bazel
+++ /dev/null
@@ -1,70 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "follow-recommendations-service/thrift/src/main/thrift:thrift-scala",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/author_features",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/content",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/earlybird",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/inferred_topic",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/twhin_embeddings",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/service",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util/earlybird",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/content",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/recommendations",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/timeline_ranker",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/social_graph",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/candidate_source/strato",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/feature_hydrator",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/candidate",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/util",
-        "representation-scorer/server/src/main/scala/com/twitter/representationscorer/common",
-        "servo/repo/src/main/scala",
-        "servo/util/src/main/scala",
-        "snowflake/src/main/scala/com/twitter/snowflake/id",
-        "src/java/com/twitter/ml/api/constant",
-        "src/scala/com/twitter/ml/api/util",
-        "src/scala/com/twitter/timelines/prediction/adapters/conversation_features",
-        "src/scala/com/twitter/timelines/prediction/adapters/real_graph",
-        "src/scala/com/twitter/timelines/prediction/adapters/realtime_interaction_graph",
-        "src/scala/com/twitter/timelines/prediction/adapters/twistly",
-        "src/scala/com/twitter/timelines/prediction/adapters/two_hop_features",
-        "src/scala/com/twitter/timelines/prediction/common/adapters",
-        "src/scala/com/twitter/timelines/prediction/common/util",
-        "src/scala/com/twitter/timelines/prediction/features/common",
-        "src/scala/com/twitter/timelines/prediction/features/realtime_interaction_graph",
-        "src/scala/com/twitter/timelines/prediction/features/time_features",
-        "src/thrift/com/twitter/ml/api:data-java",
-        "src/thrift/com/twitter/onboarding/relevance/features:features-java",
-        "src/thrift/com/twitter/recos/user_tweet_entity_graph:user_tweet_entity_graph-scala",
-        "src/thrift/com/twitter/search:earlybird-scala",
-        "src/thrift/com/twitter/timelineranker:thrift-scala",
-        "src/thrift/com/twitter/timelines/author_features:thrift-java",
-        "stitch/stitch-gizmoduck",
-        "stitch/stitch-socialgraph",
-        "stitch/stitch-tweetypie",
-        "strato/config/columns/audiencerewards/audienceRewardsService:getSuperFollowEligibility-strato-client",
-        "strato/config/columns/ml/featureStore:featureStore-strato-client",
-        "timelines/src/main/scala/com/twitter/timelines/clients/strato/topics",
-        "timelines/src/main/scala/com/twitter/timelines/clients/strato/twistly",
-        "timelines/src/main/scala/com/twitter/timelines/common/model",
-        "timelines/src/main/scala/com/twitter/timelines/earlybird/common/utils",
-        "timelines/src/main/scala/com/twitter/timelines/model/candidate",
-        "timelines/src/main/scala/com/twitter/timelines/model/types",
-        "topic-social-proof/server/src/main/thrift:thrift-scala",
-        "topiclisting/topiclisting-core/src/main/scala/com/twitter/topiclisting",
-        "tweetconvosvc/thrift/src/main/thrift:thrift-scala",
-        "user_session_store/src/main/scala/com/twitter/user_session_store",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/CachedScoredTweetsQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/CachedScoredTweetsQueryFeatureHydrator.scala
deleted file mode 100644
index 873f043be..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/CachedScoredTweetsQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,50 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures._
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CachedScoredTweets
-import com.twitter.home_mixer.{thriftscala => hmt}
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.servo.cache.TtlCache
-import com.twitter.stitch.Stitch
-import com.twitter.util.Return
-import com.twitter.util.Throw
-import com.twitter.util.Time
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-/**
- * Fetch scored Tweets from cache and exclude the expired ones
- */
-@Singleton
-case class CachedScoredTweetsQueryFeatureHydrator @Inject() (
-  scoredTweetsCache: TtlCache[Long, hmt.ScoredTweetsResponse])
-    extends QueryFeatureHydrator[PipelineQuery] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("CachedScoredTweets")
-
-  override val features: Set[Feature[_, _]] = Set(CachedScoredTweetsFeature)
-
-  override def hydrate(query: PipelineQuery): Stitch[FeatureMap] = {
-    val userId = query.getRequiredUserId
-    val tweetScoreTtl = query.params(CachedScoredTweets.TTLParam)
-
-    Stitch.callFuture(scoredTweetsCache.get(Seq(userId))).map { keyValueResult =>
-      keyValueResult(userId) match {
-        case Return(cachedCandidatesOpt) =>
-          val cachedScoredTweets = cachedCandidatesOpt.map(_.scoredTweets).getOrElse(Seq.empty)
-          val nonExpiredTweets = cachedScoredTweets.filter { tweet =>
-            tweet.lastScoredTimestampMs.exists(Time.fromMilliseconds(_).untilNow < tweetScoreTtl)
-          }
-          FeatureMapBuilder().add(CachedScoredTweetsFeature, nonExpiredTweets).build()
-        case Throw(exception) => throw exception
-      }
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/EarlybirdFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/EarlybirdFeatureHydrator.scala
deleted file mode 100644
index cc3c2aeeb..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/EarlybirdFeatureHydrator.scala
+++ /dev/null
@@ -1,151 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.earlybird.EarlybirdAdapter
-import com.twitter.home_mixer.model.HomeFeatures.DeviceLanguageFeature
-import com.twitter.home_mixer.model.HomeFeatures.EarlybirdFeature
-import com.twitter.home_mixer.model.HomeFeatures.EarlybirdSearchResultFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.TweetUrlsFeature
-import com.twitter.home_mixer.model.HomeFeatures.UserScreenNameFeature
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.EarlybirdRepository
-import com.twitter.home_mixer.util.ObservedKeyValueResultHandler
-import com.twitter.home_mixer.util.earlybird.EarlybirdResponseUtil
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.SGSFollowedUsersFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.search.earlybird.{thriftscala => eb}
-import com.twitter.servo.keyvalue.KeyValueResult
-import com.twitter.servo.repository.KeyValueRepository
-import com.twitter.stitch.Stitch
-import com.twitter.util.Return
-import javax.inject.Inject
-import javax.inject.Named
-import javax.inject.Singleton
-import scala.collection.JavaConverters._
-
-object EarlybirdDataRecordFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class EarlybirdFeatureHydrator @Inject() (
-  @Named(EarlybirdRepository) client: KeyValueRepository[
-    (Seq[Long], Long),
-    Long,
-    eb.ThriftSearchResult
-  ],
-  override val statsReceiver: StatsReceiver)
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate]
-    with ObservedKeyValueResultHandler {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("Earlybird")
-
-  override val features: Set[Feature[_, _]] = Set(
-    EarlybirdDataRecordFeature,
-    EarlybirdFeature,
-    EarlybirdSearchResultFeature,
-    TweetUrlsFeature
-  )
-
-  override val statScope: String = identifier.toString
-
-  private val scopedStatsReceiver = statsReceiver.scope(statScope)
-  private val originalKeyFoundCounter = scopedStatsReceiver.counter("originalKey/found")
-  private val originalKeyLossCounter = scopedStatsReceiver.counter("originalKey/loss")
-
-  private val ebSearchResultNotExistPredicate: CandidateWithFeatures[TweetCandidate] => Boolean =
-    candidate => candidate.features.getOrElse(EarlybirdSearchResultFeature, None).isEmpty
-  private val ebFeaturesNotExistPredicate: CandidateWithFeatures[TweetCandidate] => Boolean =
-    candidate => candidate.features.getOrElse(EarlybirdFeature, None).isEmpty
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offloadFuture {
-    val candidatesToHydrate = candidates.filter { candidate =>
-      val isEmpty =
-        ebFeaturesNotExistPredicate(candidate) && ebSearchResultNotExistPredicate(candidate)
-      if (isEmpty) originalKeyLossCounter.incr() else originalKeyFoundCounter.incr()
-      isEmpty
-    }
-
-    client((candidatesToHydrate.map(_.candidate.id), query.getRequiredUserId))
-      .map(handleResponse(query, candidates, _, candidatesToHydrate))
-  }
-
-  private def handleResponse(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]],
-    results: KeyValueResult[Long, eb.ThriftSearchResult],
-    candidatesToHydrate: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Seq[FeatureMap] = {
-    val queryFeatureMap = query.features.getOrElse(FeatureMap.empty)
-    val userLanguages = queryFeatureMap.getOrElse(UserLanguagesFeature, Seq.empty)
-    val uiLanguageCode = queryFeatureMap.getOrElse(DeviceLanguageFeature, None)
-    val screenName = queryFeatureMap.getOrElse(UserScreenNameFeature, None)
-    val followedUserIds = queryFeatureMap.getOrElse(SGSFollowedUsersFeature, Seq.empty).toSet
-
-    val searchResults = candidatesToHydrate
-      .map { candidate =>
-        observedGet(Some(candidate.candidate.id), results)
-      }.collect {
-        case Return(Some(value)) => value
-      }
-
-    val allSearchResults = searchResults ++
-      candidates.filter(!ebSearchResultNotExistPredicate(_)).flatMap { candidate =>
-        candidate.features
-          .getOrElse(EarlybirdSearchResultFeature, None)
-      }
-    val idToSearchResults = allSearchResults.map(sr => sr.id -> sr).toMap
-    val tweetIdToEbFeatures = EarlybirdResponseUtil.getTweetThriftFeaturesByTweetId(
-      searcherUserId = query.getRequiredUserId,
-      screenName = screenName,
-      userLanguages = userLanguages,
-      uiLanguageCode = uiLanguageCode,
-      followedUserIds = followedUserIds,
-      mutuallyFollowingUserIds = Set.empty,
-      searchResults = allSearchResults,
-      sourceTweetSearchResults = Seq.empty,
-    )
-
-    candidates.map { candidate =>
-      val transformedEbFeatures = tweetIdToEbFeatures.get(candidate.candidate.id)
-      val earlybirdFeatures =
-        if (transformedEbFeatures.nonEmpty) transformedEbFeatures
-        else candidate.features.getOrElse(EarlybirdFeature, None)
-
-      val candidateIsRetweet = candidate.features.getOrElse(IsRetweetFeature, false)
-      val sourceTweetEbFeatures =
-        candidate.features.getOrElse(SourceTweetEarlybirdFeature, None)
-
-      val originalTweetEbFeatures =
-        if (candidateIsRetweet && sourceTweetEbFeatures.nonEmpty)
-          sourceTweetEbFeatures
-        else earlybirdFeatures
-
-      val earlybirdDataRecord =
-        EarlybirdAdapter.adaptToDataRecords(originalTweetEbFeatures).asScala.head
-
-      FeatureMapBuilder()
-        .add(EarlybirdFeature, earlybirdFeatures)
-        .add(EarlybirdDataRecordFeature, earlybirdDataRecord)
-        .add(EarlybirdSearchResultFeature, idToSearchResults.get(candidate.candidate.id))
-        .add(TweetUrlsFeature, earlybirdFeatures.flatMap(_.urlsList).getOrElse(Seq.empty))
-        .build()
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/FrsSeedUsersQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/FrsSeedUsersQueryFeatureHydrator.scala
deleted file mode 100644
index 2508067b0..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/FrsSeedUsersQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,64 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.follow_recommendations.{thriftscala => frs}
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.product_mixer.component_library.candidate_source.recommendations.UserFollowRecommendationsCandidateSource
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.candidate_source.strato.StratoKeyView
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.stitch.Stitch
-import javax.inject.Inject
-import javax.inject.Singleton
-
-object FrsSeedUserIdsFeature extends Feature[TweetCandidate, Option[Seq[Long]]]
-object FrsUserToFollowedByUserIdsFeature extends Feature[TweetCandidate, Map[Long, Seq[Long]]]
-
-@Singleton
-case class FrsSeedUsersQueryFeatureHydrator @Inject() (
-  userFollowRecommendationsCandidateSource: UserFollowRecommendationsCandidateSource)
-    extends QueryFeatureHydrator[ScoredTweetsQuery] {
-
-  private val maxUsersToFetch = 100
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("FrsSeedUsers")
-
-  override def features: Set[Feature[_, _]] = Set(
-    FrsSeedUserIdsFeature,
-    FrsUserToFollowedByUserIdsFeature
-  )
-
-  override def hydrate(query: ScoredTweetsQuery): Stitch[FeatureMap] = {
-    val frsRequest = frs.RecommendationRequest(
-      clientContext = frs.ClientContext(query.getOptionalUserId),
-      displayLocation = frs.DisplayLocation.HomeTimelineTweetRecs,
-      maxResults = Some(maxUsersToFetch)
-    )
-
-    userFollowRecommendationsCandidateSource(StratoKeyView(frsRequest, Unit))
-      .map { userRecommendations: Seq[frs.UserRecommendation] =>
-        val seedUserIds = userRecommendations.map(_.userId)
-        val seedUserIdsSet = seedUserIds.toSet
-
-        val userToFollowedByUserIds: Map[Long, Seq[Long]] = userRecommendations.flatMap {
-          userRecommendation =>
-            if (seedUserIdsSet.contains(userRecommendation.userId)) {
-              val followProof =
-                userRecommendation.reason.flatMap(_.accountProof).flatMap(_.followProof)
-              val followedByUserIds = followProof.map(_.userIds).getOrElse(Seq.empty)
-              Some(userRecommendation.userId -> followedByUserIds)
-            } else {
-              None
-            }
-        }.toMap
-
-        FeatureMapBuilder()
-          .add(FrsSeedUserIdsFeature, Some(seedUserIds))
-          .add(FrsUserToFollowedByUserIdsFeature, userToFollowedByUserIds)
-          .build()
-      }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/GizmoduckAuthorFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/GizmoduckAuthorFeatureHydrator.scala
deleted file mode 100644
index 7c96ef474..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/GizmoduckAuthorFeatureHydrator.scala
+++ /dev/null
@@ -1,83 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.ads.entities.db.{thriftscala => ae}
-import com.twitter.gizmoduck.{thriftscala => gt}
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIsBlueVerifiedFeature
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIsProtectedFeature
-import com.twitter.home_mixer.model.HomeFeatures.FromInNetworkSourceFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsSupportAccountReplyFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.stitch.Stitch
-import com.twitter.snowflake.id.SnowflakeId
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class GizmoduckAuthorFeatureHydrator @Inject() (gizmoduck: gt.UserService.MethodPerEndpoint)
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("GizmoduckAuthor")
-
-  override val features: Set[Feature[_, _]] =
-    Set(AuthorIsBlueVerifiedFeature, AuthorIsProtectedFeature, IsSupportAccountReplyFeature)
-
-  private val queryFields: Set[gt.QueryFields] =
-    Set(gt.QueryFields.AdvertiserAccount, gt.QueryFields.Profile, gt.QueryFields.Safety)
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offloadFuture {
-    val authorIds = candidates.flatMap(_.features.getOrElse(AuthorIdFeature, None))
-
-    val response = gizmoduck.get(
-      userIds = authorIds.distinct,
-      queryFields = queryFields,
-      context = gt.LookupContext()
-    )
-
-    response.map { hydratedAuthors =>
-      val userMetadataMap = hydratedAuthors
-        .collect {
-          case userResult if userResult.user.isDefined =>
-            val user = userResult.user.get
-            val blueVerified = user.safety.flatMap(_.isBlueVerified).getOrElse(false)
-            val isProtected = user.safety.exists(_.isProtected)
-            (user.id, (blueVerified, isProtected))
-        }.toMap.withDefaultValue((false, false))
-
-      candidates.map { candidate =>
-        val authorId = candidate.features.get(AuthorIdFeature).get
-        val (isBlueVerified, isProtected) = userMetadataMap(authorId)
-
-        // Some accounts run promotions on Twitter and send replies automatically.
-        // We assume that a reply that took more than one minute is not an auto-reply.
-        // If time difference doesn't exist, this means that one of the tweets was
-        // not snowflake and therefore much older, and therefore OK as an extended reply.
-        val timeDifference = candidate.features.getOrElse(InReplyToTweetIdFeature, None).map {
-          SnowflakeId.timeFromId(candidate.candidate.id) - SnowflakeId.timeFromId(_)
-        }
-        val isAutoReply = timeDifference.exists(_ < 1.minute)
-
-        FeatureMapBuilder()
-          .add(AuthorIsBlueVerifiedFeature, isBlueVerified)
-          .add(AuthorIsProtectedFeature, isProtected)
-          .add(IsSupportAccountReplyFeature, isAutoReply)
-          .build()
-      }
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/GraphTwoHopFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/GraphTwoHopFeatureHydrator.scala
deleted file mode 100644
index 03d70445e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/GraphTwoHopFeatureHydrator.scala
+++ /dev/null
@@ -1,97 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.graph_feature_service.{thriftscala => gfs}
-import com.twitter.home_mixer.model.HomeFeatures.FollowedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.FromInNetworkSourceFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.GraphTwoHopRepository
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.home_mixer.util.ObservedKeyValueResultHandler
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.servo.repository.KeyValueRepository
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.prediction.adapters.two_hop_features.TwoHopFeaturesAdapter
-import com.twitter.util.Try
-import javax.inject.Inject
-import javax.inject.Named
-import javax.inject.Singleton
-import scala.collection.JavaConverters._
-
-object GraphTwoHopFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class GraphTwoHopFeatureHydrator @Inject() (
-  @Named(GraphTwoHopRepository) client: KeyValueRepository[(Seq[Long], Long), Long, Seq[
-    gfs.IntersectionValue
-  ]],
-  override val statsReceiver: StatsReceiver)
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate]
-    with ObservedKeyValueResultHandler {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("GraphTwoHop")
-
-  override val features: Set[Feature[_, _]] = Set(GraphTwoHopFeature, FollowedByUserIdsFeature)
-
-  override val statScope: String = identifier.toString
-
-  private val twoHopFeaturesAdapter = new TwoHopFeaturesAdapter
-
-  private val FollowFeatureType = gfs.FeatureType(gfs.EdgeType.Following, gfs.EdgeType.FollowedBy)
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offloadFuture {
-    // Apply filters to in network candidates for retweets only.
-    val (inNetworkCandidates, oonCandidates) = candidates.partition { candidate =>
-      candidate.features.getOrElse(FromInNetworkSourceFeature, false)
-    }
-
-    val inNetworkCandidatesToHydrate =
-      inNetworkCandidates.filter(_.features.getOrElse(IsRetweetFeature, false))
-
-    val candidatesToHydrate = (inNetworkCandidatesToHydrate ++ oonCandidates)
-      .flatMap(candidate => CandidatesUtil.getOriginalAuthorId(candidate.features)).distinct
-
-    val response = client((candidatesToHydrate, query.getRequiredUserId))
-
-    response.map { result =>
-      candidates.map { candidate =>
-        val originalAuthorId = CandidatesUtil.getOriginalAuthorId(candidate.features)
-
-        val value = observedGet(key = originalAuthorId, keyValueResult = result)
-        val transformedValue = postTransformer(value)
-        val followedByUserIds = value.toOption
-          .flatMap(getFollowedByUserIds(_))
-          .getOrElse(Seq.empty)
-
-        FeatureMapBuilder()
-          .add(GraphTwoHopFeature, transformedValue)
-          .add(FollowedByUserIdsFeature, followedByUserIds)
-          .build()
-      }
-    }
-  }
-
-  private def getFollowedByUserIds(input: Option[Seq[gfs.IntersectionValue]]): Option[Seq[Long]] =
-    input.map(_.filter(_.featureType == FollowFeatureType).flatMap(_.intersectionIds).flatten)
-
-  private def postTransformer(input: Try[Option[Seq[gfs.IntersectionValue]]]): Try[DataRecord] =
-    input.map(twoHopFeaturesAdapter.adaptToDataRecords(_).asScala.head)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/IsExtendedReplyFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/IsExtendedReplyFeatureHydrator.scala
deleted file mode 100644
index fb114e55c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/IsExtendedReplyFeatureHydrator.scala
+++ /dev/null
@@ -1,45 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsExtendedReplyFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.SGSFollowedUsersFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.stitch.Stitch
-
-object IsExtendedReplyFeatureHydrator
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("IsExtendedReply")
-
-  override def features: Set[Feature[_, _]] = Set(IsExtendedReplyFeature)
-
-  private val TrueFeatureMap = FeatureMapBuilder().add(IsExtendedReplyFeature, true).build()
-  private val FalseFeatureMap = FeatureMapBuilder().add(IsExtendedReplyFeature, false).build()
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offload {
-    val followedUsers =
-      query.features.map(_.get(SGSFollowedUsersFeature)).getOrElse(Seq.empty).toSet
-
-    candidates.map { candidate =>
-      val features = candidate.features
-      val isExtendedReply = features.getOrElse(InReplyToTweetIdFeature, None).nonEmpty &&
-        !features.getOrElse(IsRetweetFeature, false) &&
-        features.getOrElse(InReplyToUserIdFeature, None).exists(!followedUsers.contains(_))
-
-      if (isExtendedReply) TrueFeatureMap else FalseFeatureMap
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/ListIdsQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/ListIdsQueryFeatureHydrator.scala
deleted file mode 100644
index db60d8866..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/ListIdsQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,52 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.socialgraph.{thriftscala => sg}
-import com.twitter.stitch.Stitch
-import com.twitter.stitch.socialgraph.SocialGraph
-import javax.inject.Inject
-import javax.inject.Singleton
-
-case object ListIdsFeature extends FeatureWithDefaultOnFailure[PipelineQuery, Seq[Long]] {
-  override val defaultValue: Seq[Long] = Seq.empty
-}
-
-@Singleton
-class ListIdsQueryFeatureHydrator @Inject() (socialGraph: SocialGraph)
-    extends QueryFeatureHydrator[PipelineQuery] {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("ListIds")
-
-  override val features: Set[Feature[_, _]] = Set(ListIdsFeature)
-
-  private val MaxListsToFetch = 20
-
-  override def hydrate(query: PipelineQuery): Stitch[FeatureMap] = {
-    val userId = query.getRequiredUserId
-
-    val ownedSubscribedRequest = sg.IdsRequest(
-      relationships = Seq(
-        sg.SrcRelationship(userId, sg.RelationshipType.ListIsSubscriber, hasRelationship = true),
-        sg.SrcRelationship(userId, sg.RelationshipType.ListOwning, hasRelationship = true)
-      ),
-      pageRequest = Some(sg.PageRequest(selectAll = Some(false), count = Some(MaxListsToFetch))),
-      context = Some(
-        sg.LookupContext(
-          includeInactive = false,
-          performUnion = Some(true),
-          includeAll = Some(false)
-        )
-      )
-    )
-
-    socialGraph.ids(ownedSubscribedRequest).map { response =>
-      FeatureMapBuilder().add(ListIdsFeature, response.ids).build()
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/MetricCenterUserCountingFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/MetricCenterUserCountingFeatureHydrator.scala
deleted file mode 100644
index bc51aabb9..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/MetricCenterUserCountingFeatureHydrator.scala
+++ /dev/null
@@ -1,72 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.MetricCenterUserCountingFeatureRepository
-import com.twitter.home_mixer.util.ObservedKeyValueResultHandler
-import com.twitter.onboarding.relevance.features.{thriftjava => rf}
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.servo.keyvalue.KeyValueResult
-import com.twitter.servo.repository.KeyValueRepository
-import com.twitter.stitch.Stitch
-import com.twitter.util.Future
-import javax.inject.Inject
-import javax.inject.Named
-import javax.inject.Singleton
-
-object MetricCenterUserCountingFeature
-    extends Feature[TweetCandidate, Option[rf.MCUserCountingFeatures]]
-
-@Singleton
-class MetricCenterUserCountingFeatureHydrator @Inject() (
-  @Named(MetricCenterUserCountingFeatureRepository) client: KeyValueRepository[Seq[
-    Long
-  ], Long, rf.MCUserCountingFeatures],
-  override val statsReceiver: StatsReceiver)
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate]
-    with ObservedKeyValueResultHandler {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("MetricCenterUserCounting")
-
-  override val features: Set[Feature[_, _]] = Set(MetricCenterUserCountingFeature)
-
-  override val statScope: String = identifier.toString
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offloadFuture {
-    val possiblyAuthorIds = extractKeys(candidates)
-    val userIds = possiblyAuthorIds.flatten
-
-    val response: Future[KeyValueResult[Long, rf.MCUserCountingFeatures]] =
-      if (userIds.isEmpty) Future.value(KeyValueResult.empty) else client(userIds)
-
-    response.map { result =>
-      possiblyAuthorIds.map { possiblyAuthorId =>
-        val value = observedGet(key = possiblyAuthorId, keyValueResult = result)
-        FeatureMapBuilder().add(MetricCenterUserCountingFeature, value).build()
-      }
-    }
-  }
-
-  private def extractKeys(
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Seq[Option[Long]] = {
-    candidates.map { candidate =>
-      candidate.features
-        .getTry(AuthorIdFeature)
-        .toOption
-        .flatten
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RealGraphQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RealGraphQueryFeatureHydrator.scala
deleted file mode 100644
index a48d3742e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RealGraphQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,48 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.RealGraphFeatureRepository
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.servo.repository.Repository
-import com.twitter.timelines.real_graph.{thriftscala => rg}
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.model.UserId
-import com.twitter.timelines.real_graph.v1.thriftscala.RealGraphEdgeFeatures
-import com.twitter.user_session_store.{thriftscala => uss}
-
-import javax.inject.Inject
-import javax.inject.Named
-import javax.inject.Singleton
-
-object RealGraphFeatures extends Feature[PipelineQuery, Option[Map[UserId, RealGraphEdgeFeatures]]]
-
-@Singleton
-class RealGraphQueryFeatureHydrator @Inject() (
-  @Named(RealGraphFeatureRepository) repository: Repository[Long, Option[uss.UserSession]])
-    extends QueryFeatureHydrator[PipelineQuery] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("RealGraphFeatures")
-
-  override val features: Set[Feature[_, _]] = Set(RealGraphFeatures)
-
-  override def hydrate(query: PipelineQuery): Stitch[FeatureMap] = {
-    Stitch.callFuture {
-      repository(query.getRequiredUserId).map { userSession =>
-        val realGraphFeaturesMap = userSession.flatMap { userSession =>
-          userSession.realGraphFeatures.collect {
-            case rg.RealGraphFeatures.V1(realGraphFeatures) =>
-              val edgeFeatures = realGraphFeatures.edgeFeatures ++ realGraphFeatures.oonEdgeFeatures
-              edgeFeatures.map { edge => edge.destId -> edge }.toMap
-          }
-        }
-
-        FeatureMapBuilder().add(RealGraphFeatures, realGraphFeaturesMap).build()
-      }
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RealGraphViewerAuthorFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RealGraphViewerAuthorFeatureHydrator.scala
deleted file mode 100644
index 6048213aa..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RealGraphViewerAuthorFeatureHydrator.scala
+++ /dev/null
@@ -1,123 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToUserIdFeature
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.RealGraphViewerAuthorFeatureHydrator.getCombinedRealGraphFeatures
-import com.twitter.home_mixer.util.MissingKeyException
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.CandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.prediction.adapters.real_graph.RealGraphEdgeFeaturesCombineAdapter
-import com.twitter.timelines.prediction.adapters.real_graph.RealGraphFeaturesAdapter
-import com.twitter.timelines.real_graph.v1.{thriftscala => v1}
-import com.twitter.timelines.real_graph.{thriftscala => rg}
-import com.twitter.util.Throw
-import javax.inject.Inject
-import javax.inject.Singleton
-import scala.collection.JavaConverters._
-
-object RealGraphViewerAuthorDataRecordFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-object RealGraphViewerAuthorsDataRecordFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class RealGraphViewerAuthorFeatureHydrator @Inject() ()
-    extends CandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("RealGraphViewerAuthor")
-
-  override val features: Set[Feature[_, _]] =
-    Set(RealGraphViewerAuthorDataRecordFeature, RealGraphViewerAuthorsDataRecordFeature)
-
-  private val realGraphEdgeFeaturesAdapter = new RealGraphFeaturesAdapter
-  private val realGraphEdgeFeaturesCombineAdapter =
-    new RealGraphEdgeFeaturesCombineAdapter(prefix = "authors.realgraph")
-
-  private val MissingKeyFeatureMap = FeatureMapBuilder()
-    .add(RealGraphViewerAuthorDataRecordFeature, Throw(MissingKeyException))
-    .add(RealGraphViewerAuthorsDataRecordFeature, Throw(MissingKeyException))
-    .build()
-
-  override def apply(
-    query: PipelineQuery,
-    candidate: TweetCandidate,
-    existingFeatures: FeatureMap
-  ): Stitch[FeatureMap] = OffloadFuturePools.offload {
-    val viewerId = query.getRequiredUserId
-    val realGraphFeatures = query.features
-      .flatMap(_.getOrElse(RealGraphFeatures, None))
-      .getOrElse(Map.empty[Long, v1.RealGraphEdgeFeatures])
-
-    existingFeatures.getOrElse(AuthorIdFeature, None) match {
-      case Some(authorId) =>
-        val realGraphAuthorFeatures =
-          getRealGraphViewerAuthorFeatures(viewerId, authorId, realGraphFeatures)
-        val realGraphAuthorDataRecord = realGraphEdgeFeaturesAdapter
-          .adaptToDataRecords(realGraphAuthorFeatures).asScala.headOption.getOrElse(new DataRecord)
-
-        val combinedRealGraphFeaturesDataRecord = for {
-          inReplyToAuthorId <- existingFeatures.getOrElse(InReplyToUserIdFeature, None)
-        } yield {
-          val combinedRealGraphFeatures =
-            getCombinedRealGraphFeatures(Seq(authorId, inReplyToAuthorId), realGraphFeatures)
-          realGraphEdgeFeaturesCombineAdapter
-            .adaptToDataRecords(Some(combinedRealGraphFeatures)).asScala.headOption
-            .getOrElse(new DataRecord)
-        }
-
-        FeatureMapBuilder()
-          .add(RealGraphViewerAuthorDataRecordFeature, realGraphAuthorDataRecord)
-          .add(
-            RealGraphViewerAuthorsDataRecordFeature,
-            combinedRealGraphFeaturesDataRecord.getOrElse(new DataRecord))
-          .build()
-      case _ => MissingKeyFeatureMap
-    }
-  }
-
-  private def getRealGraphViewerAuthorFeatures(
-    viewerId: Long,
-    authorId: Long,
-    realGraphEdgeFeaturesMap: Map[Long, v1.RealGraphEdgeFeatures]
-  ): rg.UserRealGraphFeatures = {
-    realGraphEdgeFeaturesMap.get(authorId) match {
-      case Some(realGraphEdgeFeatures) =>
-        rg.UserRealGraphFeatures(
-          srcId = viewerId,
-          features = rg.RealGraphFeatures.V1(
-            v1.RealGraphFeatures(edgeFeatures = Seq(realGraphEdgeFeatures))))
-      case _ =>
-        rg.UserRealGraphFeatures(
-          srcId = viewerId,
-          features = rg.RealGraphFeatures.V1(v1.RealGraphFeatures(edgeFeatures = Seq.empty)))
-    }
-  }
-}
-
-object RealGraphViewerAuthorFeatureHydrator {
-  def getCombinedRealGraphFeatures(
-    userIds: Seq[Long],
-    realGraphEdgeFeaturesMap: Map[Long, v1.RealGraphEdgeFeatures]
-  ): rg.RealGraphFeatures = {
-    val edgeFeatures = userIds.flatMap(realGraphEdgeFeaturesMap.get)
-    rg.RealGraphFeatures.V1(v1.RealGraphFeatures(edgeFeatures = edgeFeatures))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RealGraphViewerRelatedUsersFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RealGraphViewerRelatedUsersFeatureHydrator.scala
deleted file mode 100644
index 47e2431cf..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RealGraphViewerRelatedUsersFeatureHydrator.scala
+++ /dev/null
@@ -1,73 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.DirectedAtUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.MentionUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceUserIdFeature
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.CandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.prediction.adapters.real_graph.RealGraphEdgeFeaturesCombineAdapter
-import com.twitter.timelines.real_graph.v1.{thriftscala => v1}
-import javax.inject.Inject
-import javax.inject.Singleton
-import scala.collection.JavaConverters._
-
-object RealGraphViewerRelatedUsersDataRecordFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class RealGraphViewerRelatedUsersFeatureHydrator @Inject() ()
-    extends CandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("RealGraphViewerRelatedUsers")
-
-  override val features: Set[Feature[_, _]] = Set(RealGraphViewerRelatedUsersDataRecordFeature)
-
-  private val RealGraphEdgeFeaturesCombineAdapter = new RealGraphEdgeFeaturesCombineAdapter
-
-  override def apply(
-    query: PipelineQuery,
-    candidate: TweetCandidate,
-    existingFeatures: FeatureMap
-  ): Stitch[FeatureMap] = OffloadFuturePools.offload {
-    val realGraphQueryFeatures = query.features
-      .flatMap(_.getOrElse(RealGraphFeatures, None))
-      .getOrElse(Map.empty[Long, v1.RealGraphEdgeFeatures])
-
-    val allRelatedUserIds = getRelatedUserIds(existingFeatures)
-    val realGraphFeatures = RealGraphViewerAuthorFeatureHydrator.getCombinedRealGraphFeatures(
-      allRelatedUserIds,
-      realGraphQueryFeatures
-    )
-    val realGraphFeaturesDataRecord = RealGraphEdgeFeaturesCombineAdapter
-      .adaptToDataRecords(Some(realGraphFeatures)).asScala.headOption
-      .getOrElse(new DataRecord)
-
-    FeatureMapBuilder()
-      .add(RealGraphViewerRelatedUsersDataRecordFeature, realGraphFeaturesDataRecord)
-      .build()
-  }
-
-  private def getRelatedUserIds(features: FeatureMap): Seq[Long] = {
-    (CandidatesUtil.getEngagerUserIds(features) ++
-      features.getOrElse(AuthorIdFeature, None) ++
-      features.getOrElse(MentionUserIdFeature, Seq.empty) ++
-      features.getOrElse(SourceUserIdFeature, None) ++
-      features.getOrElse(DirectedAtUserIdFeature, None)).distinct
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RealTimeInteractionGraphEdgeFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RealTimeInteractionGraphEdgeFeatureHydrator.scala
deleted file mode 100644
index f690ff0e0..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RealTimeInteractionGraphEdgeFeatureHydrator.scala
+++ /dev/null
@@ -1,61 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.prediction.adapters.realtime_interaction_graph.RealTimeInteractionGraphFeaturesAdapter
-import com.twitter.timelines.prediction.features.realtime_interaction_graph.RealTimeInteractionGraphEdgeFeatures
-import com.twitter.util.Time
-import javax.inject.Inject
-import javax.inject.Singleton
-import scala.collection.JavaConverters._
-
-object RealTimeInteractionGraphEdgeFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class RealTimeInteractionGraphEdgeFeatureHydrator @Inject() ()
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("RealTimeInteractionGraphEdge")
-
-  override val features: Set[Feature[_, _]] = Set(RealTimeInteractionGraphEdgeFeature)
-
-  private val realTimeInteractionGraphFeaturesAdapter = new RealTimeInteractionGraphFeaturesAdapter
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offload {
-    val userVertex =
-      query.features.flatMap(_.getOrElse(RealTimeInteractionGraphUserVertexQueryFeature, None))
-    val realTimeInteractionGraphFeaturesMap =
-      userVertex.map(RealTimeInteractionGraphEdgeFeatures(_, Time.now))
-
-    candidates.map { candidate =>
-      val feature = candidate.features.getOrElse(AuthorIdFeature, None).flatMap { authorId =>
-        realTimeInteractionGraphFeaturesMap.flatMap(_.get(authorId))
-      }
-
-      val dataRecordFeature =
-        realTimeInteractionGraphFeaturesAdapter.adaptToDataRecords(feature).asScala.head
-
-      FeatureMapBuilder().add(RealTimeInteractionGraphEdgeFeature, dataRecordFeature).build()
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RealTimeInteractionGraphUserVertexQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RealTimeInteractionGraphUserVertexQueryFeatureHydrator.scala
deleted file mode 100644
index 60d82cc28..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RealTimeInteractionGraphUserVertexQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,48 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.google.inject.name.Named
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.RealTimeInteractionGraphUserVertexCache
-import com.twitter.home_mixer.util.ObservedKeyValueResultHandler
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.servo.cache.ReadCache
-import com.twitter.stitch.Stitch
-import com.twitter.wtf.real_time_interaction_graph.{thriftscala => ig}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-object RealTimeInteractionGraphUserVertexQueryFeature
-    extends Feature[PipelineQuery, Option[ig.UserVertex]]
-
-@Singleton
-class RealTimeInteractionGraphUserVertexQueryFeatureHydrator @Inject() (
-  @Named(RealTimeInteractionGraphUserVertexCache) client: ReadCache[Long, ig.UserVertex],
-  override val statsReceiver: StatsReceiver)
-    extends QueryFeatureHydrator[PipelineQuery]
-    with ObservedKeyValueResultHandler {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("RealTimeInteractionGraphUserVertex")
-
-  override val features: Set[Feature[_, _]] = Set(RealTimeInteractionGraphUserVertexQueryFeature)
-
-  override val statScope: String = identifier.toString
-
-  override def hydrate(query: PipelineQuery): Stitch[FeatureMap] = {
-    val userId = query.getRequiredUserId
-
-    Stitch.callFuture(
-      client.get(Seq(userId)).map { results =>
-        val feature = observedGet(key = Some(userId), keyValueResult = results)
-        FeatureMapBuilder()
-          .add(RealTimeInteractionGraphUserVertexQueryFeature, feature)
-          .build()
-      }
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/ReplyFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/ReplyFeatureHydrator.scala
deleted file mode 100644
index 80d857a26..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/ReplyFeatureHydrator.scala
+++ /dev/null
@@ -1,242 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.model.ContentFeatures
-import com.twitter.home_mixer.model.HomeFeatures._
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.content.InReplyToContentFeatureAdapter
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.earlybird.InReplyToEarlybirdAdapter
-import com.twitter.home_mixer.util.ReplyRetweetUtil
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.search.common.features.thriftscala.ThriftTweetFeatures
-import com.twitter.snowflake.id.SnowflakeId
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.conversation_features.v1.thriftscala.ConversationFeatures
-import com.twitter.timelines.conversation_features.{thriftscala => cf}
-import com.twitter.timelines.prediction.adapters.conversation_features.ConversationFeaturesAdapter
-import com.twitter.util.Duration
-import com.twitter.util.Time
-import javax.inject.Inject
-import javax.inject.Singleton
-import scala.collection.JavaConverters._
-
-object InReplyToTweetHydratedEarlybirdFeature
-    extends Feature[TweetCandidate, Option[ThriftTweetFeatures]]
-
-object ConversationDataRecordFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-object InReplyToEarlybirdDataRecordFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-object InReplyToTweetypieContentDataRecordFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-/**
- * The purpose of this hydrator is to
- * 1) hydrate simple features into replies and their ancestor tweets
- * 2) keep both the normal replies and ancestor source candidates, but hydrate into the candidates
- * features useful for predicting the quality of the replies and source ancestor tweets.
- */
-@Singleton
-class ReplyFeatureHydrator @Inject() (statsReceiver: StatsReceiver)
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("ReplyTweet")
-
-  override val features: Set[Feature[_, _]] = Set(
-    ConversationDataRecordFeature,
-    InReplyToTweetHydratedEarlybirdFeature,
-    InReplyToEarlybirdDataRecordFeature,
-    InReplyToTweetypieContentDataRecordFeature
-  )
-
-  private val defaulDataRecord: DataRecord = new DataRecord()
-
-  private val DefaultFeatureMap = FeatureMapBuilder()
-    .add(ConversationDataRecordFeature, defaulDataRecord)
-    .add(InReplyToTweetHydratedEarlybirdFeature, None)
-    .add(InReplyToEarlybirdDataRecordFeature, defaulDataRecord)
-    .add(InReplyToTweetypieContentDataRecordFeature, defaulDataRecord)
-    .build()
-
-  private val scopedStatsReceiver = statsReceiver.scope(getClass.getSimpleName)
-  private val hydratedReplyCounter = scopedStatsReceiver.counter("hydratedReply")
-  private val hydratedAncestorCounter = scopedStatsReceiver.counter("hydratedAncestor")
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offload {
-    val replyToInReplyToTweetMap =
-      ReplyRetweetUtil.replyTweetIdToInReplyToTweetMap(candidates)
-    val candidatesWithRepliesHydrated = candidates.map { candidate =>
-      replyToInReplyToTweetMap
-        .get(candidate.candidate.id).map { inReplyToTweet =>
-          hydratedReplyCounter.incr()
-          hydratedReplyCandidate(candidate, inReplyToTweet)
-        }.getOrElse((candidate, None, None))
-    }
-
-    /**
-     * Update ancestor tweets with descendant replies and hydrate simple features from one of
-     * the descendants.
-     */
-    val ancestorTweetToDescendantRepliesMap =
-      ReplyRetweetUtil.ancestorTweetIdToDescendantRepliesMap(candidates)
-    val candidatesWithRepliesAndAncestorTweetsHydrated = candidatesWithRepliesHydrated.map {
-      case (
-            maybeAncestorTweetCandidate,
-            updatedReplyConversationFeatures,
-            inReplyToTweetEarlyBirdFeature) =>
-        ancestorTweetToDescendantRepliesMap
-          .get(maybeAncestorTweetCandidate.candidate.id)
-          .map { descendantReplies =>
-            hydratedAncestorCounter.incr()
-            val (ancestorTweetCandidate, updatedConversationFeatures): (
-              CandidateWithFeatures[TweetCandidate],
-              Option[ConversationFeatures]
-            ) =
-              hydrateAncestorTweetCandidate(
-                maybeAncestorTweetCandidate,
-                descendantReplies,
-                updatedReplyConversationFeatures)
-            (ancestorTweetCandidate, inReplyToTweetEarlyBirdFeature, updatedConversationFeatures)
-          }
-          .getOrElse(
-            (
-              maybeAncestorTweetCandidate,
-              inReplyToTweetEarlyBirdFeature,
-              updatedReplyConversationFeatures))
-    }
-
-    candidatesWithRepliesAndAncestorTweetsHydrated.map {
-      case (candidate, inReplyToTweetEarlyBirdFeature, updatedConversationFeatures) =>
-        val conversationDataRecordFeature = updatedConversationFeatures
-          .map(f => ConversationFeaturesAdapter.adaptToDataRecord(cf.ConversationFeatures.V1(f)))
-          .getOrElse(defaulDataRecord)
-
-        val inReplyToEarlybirdDataRecord =
-          InReplyToEarlybirdAdapter
-            .adaptToDataRecords(inReplyToTweetEarlyBirdFeature).asScala.head
-        val inReplyToContentDataRecord = InReplyToContentFeatureAdapter
-          .adaptToDataRecords(
-            inReplyToTweetEarlyBirdFeature.map(ContentFeatures.fromThrift)).asScala.head
-
-        FeatureMapBuilder()
-          .add(ConversationDataRecordFeature, conversationDataRecordFeature)
-          .add(InReplyToTweetHydratedEarlybirdFeature, inReplyToTweetEarlyBirdFeature)
-          .add(InReplyToEarlybirdDataRecordFeature, inReplyToEarlybirdDataRecord)
-          .add(InReplyToTweetypieContentDataRecordFeature, inReplyToContentDataRecord)
-          .build()
-      case _ => DefaultFeatureMap
-    }
-  }
-
-  private def hydratedReplyCandidate(
-    replyCandidate: CandidateWithFeatures[TweetCandidate],
-    inReplyToTweetCandidate: CandidateWithFeatures[TweetCandidate]
-  ): (
-    CandidateWithFeatures[TweetCandidate],
-    Option[ConversationFeatures],
-    Option[ThriftTweetFeatures]
-  ) = {
-    val tweetedAfterInReplyToTweetInSecs =
-      (
-        originalTweetAgeFromSnowflake(inReplyToTweetCandidate),
-        originalTweetAgeFromSnowflake(replyCandidate)) match {
-        case (Some(inReplyToTweetAge), Some(replyTweetAge)) =>
-          Some((inReplyToTweetAge - replyTweetAge).inSeconds.toLong)
-        case _ => None
-      }
-
-    val existingConversationFeatures = Some(
-      replyCandidate.features
-        .getOrElse(ConversationFeature, None).getOrElse(ConversationFeatures()))
-
-    val updatedConversationFeatures = existingConversationFeatures match {
-      case Some(v1) =>
-        Some(
-          v1.copy(
-            tweetedAfterInReplyToTweetInSecs = tweetedAfterInReplyToTweetInSecs,
-            isSelfReply = Some(
-              replyCandidate.features.getOrElse(
-                AuthorIdFeature,
-                None) == inReplyToTweetCandidate.features.getOrElse(AuthorIdFeature, None))
-          )
-        )
-      case _ => None
-    }
-
-    // Note: if inReplyToTweet is a retweet, we need to read early bird feature from the merged
-    // early bird feature field from RetweetSourceTweetFeatureHydrator class.
-    // But if inReplyToTweet is a reply, we return its early bird feature directly
-    val inReplyToTweetThriftTweetFeaturesOpt = {
-      if (inReplyToTweetCandidate.features.getOrElse(IsRetweetFeature, false)) {
-        inReplyToTweetCandidate.features.getOrElse(SourceTweetEarlybirdFeature, None)
-      } else {
-        inReplyToTweetCandidate.features.getOrElse(EarlybirdFeature, None)
-      }
-    }
-
-    (replyCandidate, updatedConversationFeatures, inReplyToTweetThriftTweetFeaturesOpt)
-  }
-
-  private def hydrateAncestorTweetCandidate(
-    ancestorTweetCandidate: CandidateWithFeatures[TweetCandidate],
-    descendantReplies: Seq[CandidateWithFeatures[TweetCandidate]],
-    updatedReplyConversationFeatures: Option[ConversationFeatures]
-  ): (CandidateWithFeatures[TweetCandidate], Option[ConversationFeatures]) = {
-    // Ancestor could be a reply. For example, in thread: tweetA -> tweetB -> tweetC,
-    // tweetB is a reply and ancestor at the same time. Hence, tweetB's conversation feature
-    // will be updated by hydratedReplyCandidate and hydrateAncestorTweetCandidate functions.
-    val existingConversationFeatures =
-      if (updatedReplyConversationFeatures.nonEmpty)
-        updatedReplyConversationFeatures
-      else
-        Some(
-          ancestorTweetCandidate.features
-            .getOrElse(ConversationFeature, None).getOrElse(ConversationFeatures()))
-
-    val updatedConversationFeatures = existingConversationFeatures match {
-      case Some(v1) =>
-        Some(
-          v1.copy(
-            hasDescendantReplyCandidate = Some(true),
-            hasInNetworkDescendantReply =
-              Some(descendantReplies.exists(_.features.getOrElse(InNetworkFeature, false)))
-          ))
-      case _ => None
-    }
-    (ancestorTweetCandidate, updatedConversationFeatures)
-  }
-
-  private def originalTweetAgeFromSnowflake(
-    candidate: CandidateWithFeatures[TweetCandidate]
-  ): Option[Duration] = {
-    SnowflakeId
-      .timeFromIdOpt(
-        candidate.features
-          .getOrElse(SourceTweetIdFeature, None).getOrElse(candidate.candidate.id))
-      .map(Time.now - _)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RequestTimeQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RequestTimeQueryFeatureHydrator.scala
deleted file mode 100644
index fd9656d8c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RequestTimeQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,122 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.model.HomeFeatures.FollowingLastNonPollingTimeFeature
-import com.twitter.home_mixer.model.HomeFeatures.LastNonPollingTimeFeature
-import com.twitter.home_mixer.model.HomeFeatures.NonPollingTimesFeature
-import com.twitter.ml.api.DataRecord
-import com.twitter.ml.api.util.FDsl._
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.snowflake.id.SnowflakeId
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.prediction.features.time_features.AccountAgeInterval
-import com.twitter.timelines.prediction.features.time_features.TimeDataRecordFeatures.ACCOUNT_AGE_INTERVAL
-import com.twitter.timelines.prediction.features.time_features.TimeDataRecordFeatures.IS_12_MONTH_NEW_USER
-import com.twitter.timelines.prediction.features.time_features.TimeDataRecordFeatures.IS_30_DAY_NEW_USER
-import com.twitter.timelines.prediction.features.time_features.TimeDataRecordFeatures.TIME_BETWEEN_NON_POLLING_REQUESTS_AVG
-import com.twitter.timelines.prediction.features.time_features.TimeDataRecordFeatures.TIME_SINCE_LAST_NON_POLLING_REQUEST
-import com.twitter.timelines.prediction.features.time_features.TimeDataRecordFeatures.TIME_SINCE_VIEWER_ACCOUNT_CREATION_SECS
-import com.twitter.timelines.prediction.features.time_features.TimeDataRecordFeatures.USER_ID_IS_SNOWFLAKE_ID
-import com.twitter.user_session_store.ReadRequest
-import com.twitter.user_session_store.ReadWriteUserSessionStore
-import com.twitter.user_session_store.UserSessionDataset
-import com.twitter.user_session_store.UserSessionDataset.UserSessionDataset
-import com.twitter.util.Time
-import javax.inject.Inject
-import javax.inject.Singleton
-
-object RequestTimeDataRecordFeature
-    extends DataRecordInAFeature[PipelineQuery]
-    with FeatureWithDefaultOnFailure[PipelineQuery, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-case class RequestTimeQueryFeatureHydrator @Inject() (
-  userSessionStore: ReadWriteUserSessionStore)
-    extends QueryFeatureHydrator[PipelineQuery] {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("RequestTime")
-
-  override val features: Set[Feature[_, _]] = Set(
-    FollowingLastNonPollingTimeFeature,
-    LastNonPollingTimeFeature,
-    NonPollingTimesFeature,
-    RequestTimeDataRecordFeature
-  )
-
-  private val datasets: Set[UserSessionDataset] = Set(UserSessionDataset.NonPollingTimes)
-
-  override def hydrate(query: PipelineQuery): Stitch[FeatureMap] = {
-    userSessionStore
-      .read(ReadRequest(query.getRequiredUserId, datasets))
-      .map { userSession =>
-        val nonPollingTimestamps = userSession.flatMap(_.nonPollingTimestamps)
-
-        val lastNonPollingTime = nonPollingTimestamps
-          .flatMap(_.nonPollingTimestampsMs.headOption)
-          .map(Time.fromMilliseconds)
-
-        val followingLastNonPollingTime = nonPollingTimestamps
-          .flatMap(_.mostRecentHomeLatestNonPollingTimestampMs)
-          .map(Time.fromMilliseconds)
-
-        val nonPollingTimes = nonPollingTimestamps
-          .map(_.nonPollingTimestampsMs)
-          .getOrElse(Seq.empty)
-
-        val requestTimeDataRecord = getRequestTimeDataRecord(query, nonPollingTimes)
-
-        FeatureMapBuilder()
-          .add(FollowingLastNonPollingTimeFeature, followingLastNonPollingTime)
-          .add(LastNonPollingTimeFeature, lastNonPollingTime)
-          .add(NonPollingTimesFeature, nonPollingTimes)
-          .add(RequestTimeDataRecordFeature, requestTimeDataRecord)
-          .build()
-      }
-  }
-
-  def getRequestTimeDataRecord(query: PipelineQuery, nonPollingTimes: Seq[Long]): DataRecord = {
-    val requestTimeMs = query.queryTime.inMillis
-    val accountAge = SnowflakeId.timeFromIdOpt(query.getRequiredUserId)
-    val timeSinceAccountCreation = accountAge.map(query.queryTime.since)
-    val timeSinceEarliestNonPollingRequest =
-      nonPollingTimes.lastOption.map(requestTimeMs - _)
-    val timeSinceLastNonPollingRequest =
-      nonPollingTimes.headOption.map(requestTimeMs - _)
-
-    new DataRecord()
-      .setFeatureValue(USER_ID_IS_SNOWFLAKE_ID, accountAge.isDefined)
-      .setFeatureValue(
-        IS_30_DAY_NEW_USER,
-        timeSinceAccountCreation.map(_ < 30.days).getOrElse(false)
-      )
-      .setFeatureValue(
-        IS_12_MONTH_NEW_USER,
-        timeSinceAccountCreation.map(_ < 365.days).getOrElse(false)
-      )
-      .setFeatureValueFromOption(
-        ACCOUNT_AGE_INTERVAL,
-        timeSinceAccountCreation.flatMap(AccountAgeInterval.fromDuration).map(_.id.toLong)
-      )
-      .setFeatureValueFromOption(
-        TIME_SINCE_VIEWER_ACCOUNT_CREATION_SECS,
-        timeSinceAccountCreation.map(_.inSeconds.toDouble)
-      )
-      .setFeatureValueFromOption(
-        TIME_BETWEEN_NON_POLLING_REQUESTS_AVG,
-        timeSinceEarliestNonPollingRequest.map(_.toDouble / math.max(1.0, nonPollingTimes.size))
-      )
-      .setFeatureValueFromOption(
-        TIME_SINCE_LAST_NON_POLLING_REQUEST,
-        timeSinceLastNonPollingRequest.map(_.toDouble)
-      )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RetweetSourceTweetFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RetweetSourceTweetFeatureHydrator.scala
deleted file mode 100644
index 33cbef884..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/RetweetSourceTweetFeatureHydrator.scala
+++ /dev/null
@@ -1,76 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures._
-import com.twitter.product_mixer.component_library.candidate_source.timeline_ranker.TimelineRankerInNetworkSourceTweetsByTweetIdMapFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.search.common.features.thriftscala.ThriftTweetFeatures
-import com.twitter.stitch.Stitch
-import com.twitter.timelineranker.thriftscala.CandidateTweet
-
-object SourceTweetEarlybirdFeature extends Feature[TweetCandidate, Option[ThriftTweetFeatures]]
-
-/**
- * Feature Hydrator that bulk hydrates source tweets' features to retweet candidates
- */
-object RetweetSourceTweetFeatureHydrator
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("RetweetSourceTweet")
-
-  override val features: Set[Feature[_, _]] = Set(
-    SourceTweetEarlybirdFeature,
-  )
-
-  private val DefaultFeatureMap = FeatureMapBuilder()
-    .add(SourceTweetEarlybirdFeature, None)
-    .build()
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = {
-    val sourceTweetsByTweetId: Option[Map[Long, CandidateTweet]] = {
-      query.features.map(
-        _.getOrElse(
-          TimelineRankerInNetworkSourceTweetsByTweetIdMapFeature,
-          Map.empty[Long, CandidateTweet]))
-    }
-
-    /**
-     * Return DefaultFeatureMap (no-op to candidate) when it is unfeasible to hydrate the
-     * source tweet's feature to the current candidate: early bird does not return source
-     * tweets info / candidate is not a retweet / sourceTweetId is not found
-     */
-    Stitch.value {
-      if (sourceTweetsByTweetId.exists(_.nonEmpty)) {
-        candidates.map { candidate =>
-          val candidateIsRetweet = candidate.features.getOrElse(IsRetweetFeature, false)
-          val sourceTweetId = candidate.features.getOrElse(SourceTweetIdFeature, None)
-          if (!candidateIsRetweet || sourceTweetId.isEmpty) {
-            DefaultFeatureMap
-          } else {
-            val sourceTweet = sourceTweetsByTweetId.flatMap(_.get(sourceTweetId.get))
-            if (sourceTweet.nonEmpty) {
-              val source = sourceTweet.get
-              FeatureMapBuilder()
-                .add(SourceTweetEarlybirdFeature, source.features)
-                .build()
-            } else {
-              DefaultFeatureMap
-            }
-          }
-        }
-      } else {
-        candidates.map(_ => DefaultFeatureMap)
-      }
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/SimClustersEngagementSimilarityFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/SimClustersEngagementSimilarityFeatureHydrator.scala
deleted file mode 100644
index f66966f00..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/SimClustersEngagementSimilarityFeatureHydrator.scala
+++ /dev/null
@@ -1,75 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.Conditionally
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.clients.strato.twistly.SimClustersRecentEngagementSimilarityClient
-import com.twitter.timelines.configapi.decider.BooleanDeciderParam
-import com.twitter.timelines.prediction.adapters.twistly.SimClustersRecentEngagementSimilarityFeaturesAdapter
-import javax.inject.Inject
-import javax.inject.Singleton
-
-object SimClustersEngagementSimilarityFeature
-    extends DataRecordInAFeature[PipelineQuery]
-    with FeatureWithDefaultOnFailure[PipelineQuery, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class SimClustersEngagementSimilarityFeatureHydrator @Inject() (
-  simClustersEngagementSimilarityClient: SimClustersRecentEngagementSimilarityClient)
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate]
-    with Conditionally[PipelineQuery] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("SimClustersEngagementSimilarity")
-
-  override val features: Set[Feature[_, _]] = Set(SimClustersEngagementSimilarityFeature)
-
-  private val simClustersRecentEngagementSimilarityFeaturesAdapter =
-    new SimClustersRecentEngagementSimilarityFeaturesAdapter
-
-  override def onlyIf(query: PipelineQuery): Boolean = {
-    val param: BooleanDeciderParam =
-      ScoredTweetsParam.EnableSimClustersSimilarityFeatureHydrationDeciderParam
-    query.params.apply(param)
-  }
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offloadFuture {
-    val tweetToCandidates = candidates.map(candidate => candidate.candidate.id -> candidate).toMap
-    val tweetIds = tweetToCandidates.keySet.toSeq
-    val userId = query.getRequiredUserId
-    val userTweetEdges = tweetIds.map(tweetId => (userId, tweetId))
-    simClustersEngagementSimilarityClient
-      .getSimClustersRecentEngagementSimilarityScores(userTweetEdges).map {
-        simClustersRecentEngagementSimilarityScoresMap =>
-          candidates.map { candidate =>
-            val similarityFeatureOpt = simClustersRecentEngagementSimilarityScoresMap
-              .get(userId -> candidate.candidate.id).flatten
-            val dataRecordOpt = similarityFeatureOpt.map { similarityFeature =>
-              simClustersRecentEngagementSimilarityFeaturesAdapter
-                .adaptToDataRecords(similarityFeature)
-                .get(0)
-            }
-            FeatureMapBuilder()
-              .add(SimClustersEngagementSimilarityFeature, dataRecordOpt.getOrElse(new DataRecord))
-              .build()
-          }
-      }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/SimClustersUserTweetScoresHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/SimClustersUserTweetScoresHydrator.scala
deleted file mode 100644
index c938f34c5..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/SimClustersUserTweetScoresHydrator.scala
+++ /dev/null
@@ -1,86 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.dal.personal_data.{thriftjava => pd}
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.model.HomeFeatures.EarlybirdFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordOptionalFeature
-import com.twitter.product_mixer.core.feature.datarecord.DoubleDataRecordCompatible
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.stitch.Stitch
-import com.twitter.strato.catalog.Fetch
-import com.twitter.strato.generated.client.ml.featureStore.SimClustersUserInterestedInTweetEmbeddingDotProduct20M145K2020OnUserTweetEdgeClientColumn
-import javax.inject.Inject
-import javax.inject.Singleton
-
-object SimClustersUserInterestedInTweetEmbeddingDataRecordFeature
-    extends DataRecordOptionalFeature[TweetCandidate, Double]
-    with DoubleDataRecordCompatible {
-  override val featureName: String =
-    "user-tweet.recommendations.sim_clusters_scores.user_interested_in_tweet_embedding_dot_product_20m_145k_2020"
-  override val personalDataTypes: Set[pd.PersonalDataType] =
-    Set(pd.PersonalDataType.InferredInterests)
-}
-
-@Singleton
-class SimClustersUserTweetScoresHydrator @Inject() (
-  simClustersColumn: SimClustersUserInterestedInTweetEmbeddingDotProduct20M145K2020OnUserTweetEdgeClientColumn,
-  statsReceiver: StatsReceiver)
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("SimClustersUserTweetScores")
-
-  override val features: Set[Feature[_, _]] = Set(
-    SimClustersUserInterestedInTweetEmbeddingDataRecordFeature)
-
-  private val scopedStatsReceiver = statsReceiver.scope(getClass.getSimpleName)
-  private val keyFoundCounter = scopedStatsReceiver.counter("key/found")
-  private val keyLossCounter = scopedStatsReceiver.counter("key/loss")
-  private val keyFailureCounter = scopedStatsReceiver.counter("key/failure")
-  private val keySkipCounter = scopedStatsReceiver.counter("key/skip")
-
-  private val DefaultFeatureMap = FeatureMapBuilder()
-    .add(SimClustersUserInterestedInTweetEmbeddingDataRecordFeature, None)
-    .build()
-  private val MinFavToHydrate = 9
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offloadFuture {
-    Stitch.run {
-      Stitch.collect {
-        candidates.map { candidate =>
-          val ebFeatures = candidate.features.getOrElse(EarlybirdFeature, None)
-          val favCount = ebFeatures.flatMap(_.favCountV2).getOrElse(0)
-          
-          if (ebFeatures.isEmpty || favCount >= MinFavToHydrate) {
-            simClustersColumn.fetcher
-              .fetch((query.getRequiredUserId, candidate.candidate.id), Unit)
-              .map {
-                case Fetch.Result(response, _) =>
-                  if (response.nonEmpty) keyFoundCounter.incr() else keyLossCounter.incr()
-                  FeatureMapBuilder()
-                    .add(SimClustersUserInterestedInTweetEmbeddingDataRecordFeature, response)
-                    .build()
-                case _ =>
-                  keyFailureCounter.incr()
-                  DefaultFeatureMap
-              }
-          } else {
-            keySkipCounter.incr()
-            Stitch.value(DefaultFeatureMap)
-          }
-        }
-      }
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TSPInferredTopicFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TSPInferredTopicFeatureHydrator.scala
deleted file mode 100644
index f6047730f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TSPInferredTopicFeatureHydrator.scala
+++ /dev/null
@@ -1,148 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.contentrecommender.{thriftscala => cr}
-import com.twitter.home_mixer.model.HomeFeatures.CandidateSourceIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.TSPMetricTagFeature
-import com.twitter.home_mixer.model.HomeFeatures.TopicContextFunctionalityTypeFeature
-import com.twitter.home_mixer.model.HomeFeatures.TopicIdSocialContextFeature
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.inferred_topic.InferredTopicAdapter
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.BasicTopicContextFunctionalityType
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.RecommendationTopicContextFunctionalityType
-import com.twitter.product_mixer.core.model.marshalling.response.urt.metadata.TopicContextFunctionalityType
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.clients.strato.topics.TopicSocialProofClient
-import com.twitter.timelineservice.suggests.logging.candidate_tweet_source_id.{thriftscala => sid}
-import com.twitter.topiclisting.TopicListingViewerContext
-import com.twitter.tsp.{thriftscala => tsp}
-import javax.inject.Inject
-import javax.inject.Singleton
-import scala.collection.JavaConverters._
-
-object TSPInferredTopicFeature extends Feature[TweetCandidate, Map[Long, Double]]
-object TSPInferredTopicDataRecordFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class TSPInferredTopicFeatureHydrator @Inject() (
-  topicSocialProofClient: TopicSocialProofClient)
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("TSPInferredTopic")
-
-  override val features: Set[Feature[_, _]] = Set(
-    TSPInferredTopicFeature,
-    TSPInferredTopicDataRecordFeature,
-    TopicIdSocialContextFeature,
-    TopicContextFunctionalityTypeFeature
-  )
-
-  private val topK = 3
-
-  private val SourcesToSetSocialProof: Set[sid.CandidateTweetSourceId] =
-    Set(sid.CandidateTweetSourceId.Simcluster)
-
-  private val DefaultFeatureMap = FeatureMapBuilder()
-    .add(TSPInferredTopicFeature, Map.empty[Long, Double])
-    .add(TSPInferredTopicDataRecordFeature, new DataRecord())
-    .add(TopicIdSocialContextFeature, None)
-    .add(TopicContextFunctionalityTypeFeature, None)
-    .build()
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offloadFuture {
-    val tags = candidates.collect {
-      case candidate if candidate.features.getTry(TSPMetricTagFeature).isReturn =>
-        candidate.candidate.id -> candidate.features
-          .getOrElse(TSPMetricTagFeature, Set.empty[tsp.MetricTag])
-    }.toMap
-
-    val topicSocialProofRequest = tsp.TopicSocialProofRequest(
-      userId = query.getRequiredUserId,
-      tweetIds = candidates.map(_.candidate.id).toSet,
-      displayLocation = cr.DisplayLocation.HomeTimeline,
-      topicListingSetting = tsp.TopicListingSetting.Followable,
-      context = TopicListingViewerContext.fromClientContext(query.clientContext).toThrift,
-      bypassModes = None,
-      // Only TweetMixer source has this data. Convert the TweetMixer metric tag to tsp metric tag.
-      tags = if (tags.isEmpty) None else Some(tags)
-    )
-
-    topicSocialProofClient
-      .getTopicTweetSocialProofResponse(topicSocialProofRequest)
-      .map {
-        case Some(response) =>
-          handleResponse(response, candidates)
-        case _ => candidates.map { _ => DefaultFeatureMap }
-      }
-  }
-
-  private def handleResponse(
-    response: tsp.TopicSocialProofResponse,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Seq[FeatureMap] = {
-    candidates.map { candidate =>
-      val topicWithScores = response.socialProofs.getOrElse(candidate.candidate.id, Seq.empty)
-      if (topicWithScores.nonEmpty) {
-        val (socialProofId, socialProofFunctionalityType) =
-          if (candidate.features
-              .getOrElse(CandidateSourceIdFeature, None)
-              .exists(SourcesToSetSocialProof.contains)) {
-            getSocialProof(topicWithScores)
-          } else (None, None)
-
-        val inferredTopicFeatures =
-          topicWithScores.sortBy(-_.score).take(topK).map(a => (a.topicId, a.score)).toMap
-
-        val inferredTopicDataRecord =
-          InferredTopicAdapter.adaptToDataRecords(inferredTopicFeatures).asScala.head
-
-        FeatureMapBuilder()
-          .add(TSPInferredTopicFeature, inferredTopicFeatures)
-          .add(TSPInferredTopicDataRecordFeature, inferredTopicDataRecord)
-          .add(TopicIdSocialContextFeature, socialProofId)
-          .add(TopicContextFunctionalityTypeFeature, socialProofFunctionalityType)
-          .build()
-      } else DefaultFeatureMap
-    }
-  }
-
-  private def getSocialProof(
-    topicWithScores: Seq[tsp.TopicWithScore]
-  ): (Option[Long], Option[TopicContextFunctionalityType]) = {
-    val followingTopicId = topicWithScores.collectFirst {
-      case tsp.TopicWithScore(topicId, _, _, Some(tsp.TopicFollowType.Following)) => topicId
-    }
-
-    if (followingTopicId.nonEmpty) {
-      return (followingTopicId, Some(BasicTopicContextFunctionalityType))
-    }
-
-    val implicitFollowingId = topicWithScores.collectFirst {
-      case tsp.TopicWithScore(topicId, _, _, Some(tsp.TopicFollowType.ImplicitFollow)) =>
-        topicId
-    }
-
-    if (implicitFollowingId.nonEmpty) {
-      return (implicitFollowingId, Some(RecommendationTopicContextFunctionalityType))
-    }
-
-    (None, None)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TweetMetaDataFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TweetMetaDataFeatureHydrator.scala
deleted file mode 100644
index 1c237bf18..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TweetMetaDataFeatureHydrator.scala
+++ /dev/null
@@ -1,61 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.CandidateSourceIdFeature
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.ml.api.DataRecord
-import com.twitter.ml.api.RichDataRecord
-import com.twitter.ml.api.constant.SharedFeatures
-import com.twitter.ml.api.util.DataRecordConverters._
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.CandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.prediction.features.common.TimelinesSharedFeatures
-import java.lang.{Long => JLong}
-
-object TweetMetaDataDataRecord
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-object TweetMetaDataFeatureHydrator
-    extends CandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("TweetMetaData")
-
-  override def features: Set[Feature[_, _]] = Set(TweetMetaDataDataRecord)
-
-  override def apply(
-    query: PipelineQuery,
-    candidate: TweetCandidate,
-    existingFeatures: FeatureMap
-  ): Stitch[FeatureMap] = OffloadFuturePools.offload {
-    val richDataRecord = new RichDataRecord()
-    setFeatures(richDataRecord, candidate, existingFeatures)
-    FeatureMapBuilder().add(TweetMetaDataDataRecord, richDataRecord.getRecord).build()
-  }
-
-  private def setFeatures(
-    richDataRecord: RichDataRecord,
-    candidate: TweetCandidate,
-    existingFeatures: FeatureMap
-  ): Unit = {
-    richDataRecord.setFeatureValue[JLong](SharedFeatures.TWEET_ID, candidate.id)
-
-    richDataRecord.setFeatureValueFromOption(
-      TimelinesSharedFeatures.ORIGINAL_AUTHOR_ID,
-      CandidatesUtil.getOriginalAuthorId(existingFeatures))
-
-    richDataRecord.setFeatureValueFromOption(
-      TimelinesSharedFeatures.CANDIDATE_TWEET_SOURCE_ID,
-      existingFeatures.getOrElse(CandidateSourceIdFeature, None).map(_.value.toLong))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TweetTimeFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TweetTimeFeatureHydrator.scala
deleted file mode 100644
index 947016826..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TweetTimeFeatureHydrator.scala
+++ /dev/null
@@ -1,112 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.EarlybirdFeature
-import com.twitter.home_mixer.model.HomeFeatures.NonPollingTimesFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceTweetIdFeature
-import com.twitter.ml.api.DataRecord
-import com.twitter.ml.api.util.FDsl._
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.CandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.snowflake.id.SnowflakeId
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.prediction.features.time_features.TimeDataRecordFeatures._
-import com.twitter.util.Duration
-import scala.collection.Searching._
-
-object TweetTimeDataRecordFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-object TweetTimeFeatureHydrator extends CandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("TweetTime")
-
-  override val features: Set[Feature[_, _]] = Set(TweetTimeDataRecordFeature)
-
-  override def apply(
-    query: PipelineQuery,
-    candidate: TweetCandidate,
-    existingFeatures: FeatureMap
-  ): Stitch[FeatureMap] = {
-    val tweetFeatures = existingFeatures.getOrElse(EarlybirdFeature, None)
-    val timeSinceTweetCreation = SnowflakeId.timeFromIdOpt(candidate.id).map(query.queryTime.since)
-    val timeSinceTweetCreationMs = timeSinceTweetCreation.map(_.inMillis)
-
-    val timeSinceSourceTweetCreationOpt = existingFeatures
-      .getOrElse(SourceTweetIdFeature, None)
-      .flatMap { sourceTweetId =>
-        SnowflakeId.timeFromIdOpt(sourceTweetId).map(query.queryTime.since)
-      }.orElse(timeSinceTweetCreation)
-
-    val lastFavSinceCreationHrs =
-      tweetFeatures.flatMap(_.lastFavSinceCreationHrs).map(_.toDouble)
-    val lastRetweetSinceCreationHrs =
-      tweetFeatures.flatMap(_.lastRetweetSinceCreationHrs).map(_.toDouble)
-    val lastReplySinceCreationHrs =
-      tweetFeatures.flatMap(_.lastReplySinceCreationHrs).map(_.toDouble)
-    val lastQuoteSinceCreationHrs =
-      tweetFeatures.flatMap(_.lastQuoteSinceCreationHrs).map(_.toDouble)
-    val timeSinceLastFavoriteHrs =
-      getTimeSinceLastEngagementHrs(lastFavSinceCreationHrs, timeSinceSourceTweetCreationOpt)
-    val timeSinceLastRetweetHrs =
-      getTimeSinceLastEngagementHrs(lastRetweetSinceCreationHrs, timeSinceSourceTweetCreationOpt)
-    val timeSinceLastReplyHrs =
-      getTimeSinceLastEngagementHrs(lastReplySinceCreationHrs, timeSinceSourceTweetCreationOpt)
-    val timeSinceLastQuoteHrs =
-      getTimeSinceLastEngagementHrs(lastQuoteSinceCreationHrs, timeSinceSourceTweetCreationOpt)
-
-    val nonPollingTimestampsMs = query.features.get.getOrElse(NonPollingTimesFeature, Seq.empty)
-    val timeSinceLastNonPollingRequest =
-      nonPollingTimestampsMs.headOption.map(query.queryTime.inMillis - _)
-
-    val nonPollingRequestsSinceTweetCreation =
-      if (nonPollingTimestampsMs.nonEmpty && timeSinceTweetCreationMs.isDefined) {
-        nonPollingTimestampsMs
-          .search(timeSinceTweetCreationMs.get)(Ordering[Long].reverse)
-          .insertionPoint
-      } else 0.0
-
-    val tweetAgeRatio =
-      if (timeSinceTweetCreationMs.exists(_ > 0.0) && timeSinceLastNonPollingRequest.isDefined) {
-        timeSinceLastNonPollingRequest.get / timeSinceTweetCreationMs.get.toDouble
-      } else 0.0
-
-    val dataRecord = new DataRecord()
-      .setFeatureValue(IS_TWEET_RECYCLED, false)
-      .setFeatureValue(TWEET_AGE_RATIO, tweetAgeRatio)
-      .setFeatureValueFromOption(
-        TIME_SINCE_TWEET_CREATION,
-        timeSinceTweetCreationMs.map(_.toDouble)
-      )
-      .setFeatureValue(
-        NON_POLLING_REQUESTS_SINCE_TWEET_CREATION,
-        nonPollingRequestsSinceTweetCreation
-      )
-      .setFeatureValueFromOption(LAST_FAVORITE_SINCE_CREATION_HRS, lastFavSinceCreationHrs)
-      .setFeatureValueFromOption(LAST_RETWEET_SINCE_CREATION_HRS, lastRetweetSinceCreationHrs)
-      .setFeatureValueFromOption(LAST_REPLY_SINCE_CREATION_HRS, lastReplySinceCreationHrs)
-      .setFeatureValueFromOption(LAST_QUOTE_SINCE_CREATION_HRS, lastQuoteSinceCreationHrs)
-      .setFeatureValueFromOption(TIME_SINCE_LAST_FAVORITE_HRS, timeSinceLastFavoriteHrs)
-      .setFeatureValueFromOption(TIME_SINCE_LAST_RETWEET_HRS, timeSinceLastRetweetHrs)
-      .setFeatureValueFromOption(TIME_SINCE_LAST_REPLY_HRS, timeSinceLastReplyHrs)
-      .setFeatureValueFromOption(TIME_SINCE_LAST_QUOTE_HRS, timeSinceLastQuoteHrs)
-
-    Stitch.value(FeatureMapBuilder().add(TweetTimeDataRecordFeature, dataRecord).build())
-  }
-
-  private def getTimeSinceLastEngagementHrs(
-    lastEngagementTimeSinceCreationHrsOpt: Option[Double],
-    timeSinceTweetCreation: Option[Duration]
-  ): Option[Double] = lastEngagementTimeSinceCreationHrsOpt.flatMap { lastEngagementTimeHrs =>
-    timeSinceTweetCreation.map(_.inHours - lastEngagementTimeHrs)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TweetypieContentFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TweetypieContentFeatureHydrator.scala
deleted file mode 100644
index 93039e8bc..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TweetypieContentFeatureHydrator.scala
+++ /dev/null
@@ -1,144 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.escherbird.{thriftscala => esb}
-import com.twitter.finagle.stats.Stat
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.model.HomeFeatures.MediaUnderstandingAnnotationIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceTweetIdFeature
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TweetypieContentRepository
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.content.ContentFeatureAdapter
-import com.twitter.home_mixer.util.ObservedKeyValueResultHandler
-import com.twitter.home_mixer.util.tweetypie.content.FeatureExtractionHelper
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.servo.keyvalue.KeyValueResult
-import com.twitter.servo.repository.KeyValueRepository
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.prediction.common.util.MediaUnderstandingAnnotations
-import com.twitter.tweetypie.{thriftscala => tp}
-import com.twitter.util.Future
-import com.twitter.util.Return
-import com.twitter.util.Throw
-import com.twitter.util.Try
-import javax.inject.Inject
-import javax.inject.Named
-import javax.inject.Singleton
-import scala.collection.JavaConverters._
-
-object TweetypieContentDataRecordFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class TweetypieContentFeatureHydrator @Inject() (
-  @Named(TweetypieContentRepository) client: KeyValueRepository[Seq[Long], Long, tp.Tweet],
-  override val statsReceiver: StatsReceiver)
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate]
-    with ObservedKeyValueResultHandler {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("TweetypieContent")
-
-  override val features: Set[Feature[_, _]] = Set(
-    MediaUnderstandingAnnotationIdsFeature,
-    TweetypieContentDataRecordFeature
-  )
-
-  override val statScope: String = identifier.toString
-
-  private val bulkRequestLatencyStat =
-    statsReceiver.scope(statScope).scope("bulkRequest").stat("latency_ms")
-  private val postTransformerLatencyStat =
-    statsReceiver.scope(statScope).scope("postTransformer").stat("latency_ms")
-  private val bulkPostTransformerLatencyStat =
-    statsReceiver.scope(statScope).scope("bulkPostTransformer").stat("latency_ms")
-
-  private val DefaultDataRecord: DataRecord = new DataRecord()
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offloadFuture {
-    val tweetIdsToHydrate = candidates.map(getCandidateOriginalTweetId).distinct
-
-    val response: Future[KeyValueResult[Long, tp.Tweet]] = Stat.timeFuture(bulkRequestLatencyStat) {
-      if (tweetIdsToHydrate.isEmpty) Future.value(KeyValueResult.empty)
-      else client(tweetIdsToHydrate)
-    }
-
-    response.flatMap { result =>
-      Stat.timeFuture(bulkPostTransformerLatencyStat) {
-        OffloadFuturePools
-          .parallelize[CandidateWithFeatures[TweetCandidate], Try[(Seq[Long], DataRecord)]](
-            candidates,
-            parTransformer(result, _),
-            parallelism = 32,
-            default = Return((Seq.empty, DefaultDataRecord))
-          ).map {
-            _.map {
-              case Return(result) =>
-                FeatureMapBuilder()
-                  .add(MediaUnderstandingAnnotationIdsFeature, result._1)
-                  .add(TweetypieContentDataRecordFeature, result._2)
-                  .build()
-              case Throw(e) =>
-                FeatureMapBuilder()
-                  .add(MediaUnderstandingAnnotationIdsFeature, Throw(e))
-                  .add(TweetypieContentDataRecordFeature, Throw(e))
-                  .build()
-            }
-          }
-      }
-    }
-  }
-
-  private def parTransformer(
-    result: KeyValueResult[Long, tp.Tweet],
-    candidate: CandidateWithFeatures[TweetCandidate]
-  ): Try[(Seq[Long], DataRecord)] = {
-    val originalTweetId = Some(getCandidateOriginalTweetId(candidate))
-    val value = observedGet(key = originalTweetId, keyValueResult = result)
-    Stat.time(postTransformerLatencyStat)(postTransformer(value))
-  }
-
-  private def postTransformer(
-    result: Try[Option[tp.Tweet]]
-  ): Try[(Seq[Long], DataRecord)] = {
-    result.map { tweet =>
-      val transformedValue = tweet.map(FeatureExtractionHelper.extractFeatures)
-      val semanticAnnotations = transformedValue
-        .flatMap { contentFeatures =>
-          contentFeatures.semanticCoreAnnotations.map {
-            getNonSensitiveHighRecallMediaUnderstandingAnnotationEntityIds
-          }
-        }.getOrElse(Seq.empty)
-      val dataRecord = ContentFeatureAdapter.adaptToDataRecords(transformedValue).asScala.head
-      (semanticAnnotations, dataRecord)
-    }
-  }
-
-  private def getCandidateOriginalTweetId(
-    candidate: CandidateWithFeatures[TweetCandidate]
-  ): Long = {
-    candidate.features
-      .getOrElse(SourceTweetIdFeature, None).getOrElse(candidate.candidate.id)
-  }
-
-  private def getNonSensitiveHighRecallMediaUnderstandingAnnotationEntityIds(
-    semanticCoreAnnotations: Seq[esb.TweetEntityAnnotation]
-  ): Seq[Long] =
-    semanticCoreAnnotations
-      .filter(MediaUnderstandingAnnotations.isEligibleNonSensitiveHighRecallMUAnnotation)
-      .map(_.entityId)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TweetypieStaticEntitiesFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TweetypieStaticEntitiesFeatureHydrator.scala
deleted file mode 100644
index 0ea9e8591..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TweetypieStaticEntitiesFeatureHydrator.scala
+++ /dev/null
@@ -1,161 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.google.inject.name.Named
-import com.twitter.conversions.DurationOps.RichDuration
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.DirectedAtUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.ExclusiveConversationAuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.HasImageFeature
-import com.twitter.home_mixer.model.HomeFeatures.HasVideoFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.MentionScreenNameFeature
-import com.twitter.home_mixer.model.HomeFeatures.MentionUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceUserIdFeature
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TweetypieStaticEntitiesCache
-import com.twitter.home_mixer.util.tweetypie.RequestFields
-import com.twitter.home_mixer.util.tweetypie.content.TweetMediaFeaturesExtractor
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.servo.cache.TtlCache
-import com.twitter.spam.rtf.{thriftscala => sp}
-import com.twitter.stitch.Stitch
-import com.twitter.stitch.tweetypie.{TweetyPie => TweetypieStitchClient}
-import com.twitter.tweetypie.{thriftscala => tp}
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class TweetypieStaticEntitiesFeatureHydrator @Inject() (
-  tweetypieStitchClient: TweetypieStitchClient,
-  @Named(TweetypieStaticEntitiesCache) cacheClient: TtlCache[Long, tp.Tweet])
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("TweetypieStaticEntities")
-
-  override val features: Set[Feature[_, _]] = Set(
-    AuthorIdFeature,
-    DirectedAtUserIdFeature,
-    ExclusiveConversationAuthorIdFeature,
-    HasImageFeature,
-    HasVideoFeature,
-    InReplyToTweetIdFeature,
-    InReplyToUserIdFeature,
-    IsRetweetFeature,
-    MentionScreenNameFeature,
-    MentionUserIdFeature,
-    QuotedTweetIdFeature,
-    QuotedUserIdFeature,
-    SourceTweetIdFeature,
-    SourceUserIdFeature
-  )
-
-  private val CacheTTL = 24.hours
-
-  private val DefaultFeatureMap = FeatureMapBuilder()
-    .add(AuthorIdFeature, None)
-    .add(DirectedAtUserIdFeature, None)
-    .add(ExclusiveConversationAuthorIdFeature, None)
-    .add(HasImageFeature, false)
-    .add(HasVideoFeature, false)
-    .add(InReplyToTweetIdFeature, None)
-    .add(InReplyToUserIdFeature, None)
-    .add(IsRetweetFeature, false)
-    .add(MentionScreenNameFeature, Seq.empty)
-    .add(MentionUserIdFeature, Seq.empty)
-    .add(QuotedTweetIdFeature, None)
-    .add(QuotedUserIdFeature, None)
-    .add(SourceTweetIdFeature, None)
-    .add(SourceUserIdFeature, None)
-    .build()
-
-  /**
-   * Steps:
-   *  1. query cache with all candidates
-   *  2. create a cached feature map
-   *  3. iterate candidates to hydrate features
-   *  3.a transform cached candidates
-   *  3.b hydrate non-cached candidates from Tweetypie and write to cache
-   */
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = {
-    val tweetIds = candidates.map(_.candidate.id)
-    val cachedTweetsMapFu = cacheClient
-      .get(tweetIds)
-      .map(_.found)
-
-    Stitch.callFuture(cachedTweetsMapFu).flatMap { cachedTweets =>
-      Stitch.collect {
-        candidates.map { candidate =>
-          if (cachedTweets.contains(candidate.candidate.id))
-            Stitch.value(createFeatureMap(cachedTweets(candidate.candidate.id)))
-          else readFromTweetypie(query, candidate)
-        }
-      }
-    }
-  }
-
-  private def createFeatureMap(tweet: tp.Tweet): FeatureMap = {
-    val coreData = tweet.coreData
-    val quotedTweet = tweet.quotedTweet
-    val mentions = tweet.mentions.getOrElse(Seq.empty)
-    val share = coreData.flatMap(_.share)
-    val reply = coreData.flatMap(_.reply)
-
-    FeatureMapBuilder()
-      .add(AuthorIdFeature, coreData.map(_.userId))
-      .add(DirectedAtUserIdFeature, coreData.flatMap(_.directedAtUser.map(_.userId)))
-      .add(
-        ExclusiveConversationAuthorIdFeature,
-        tweet.exclusiveTweetControl.map(_.conversationAuthorId))
-      .add(HasImageFeature, TweetMediaFeaturesExtractor.hasImage(tweet))
-      .add(HasVideoFeature, TweetMediaFeaturesExtractor.hasVideo(tweet))
-      .add(InReplyToTweetIdFeature, reply.flatMap(_.inReplyToStatusId))
-      .add(InReplyToUserIdFeature, reply.map(_.inReplyToUserId))
-      .add(IsRetweetFeature, share.isDefined)
-      .add(MentionScreenNameFeature, mentions.map(_.screenName))
-      .add(MentionUserIdFeature, mentions.flatMap(_.userId))
-      .add(QuotedTweetIdFeature, quotedTweet.map(_.tweetId))
-      .add(QuotedUserIdFeature, quotedTweet.map(_.userId))
-      .add(SourceTweetIdFeature, share.map(_.sourceStatusId))
-      .add(SourceUserIdFeature, share.map(_.sourceUserId))
-      .build()
-  }
-
-  private def readFromTweetypie(
-    query: PipelineQuery,
-    candidate: CandidateWithFeatures[TweetCandidate]
-  ): Stitch[FeatureMap] = {
-    tweetypieStitchClient
-      .getTweetFields(
-        tweetId = candidate.candidate.id,
-        options = tp.GetTweetFieldsOptions(
-          tweetIncludes = RequestFields.TweetStaticEntitiesFields,
-          includeRetweetedTweet = false,
-          includeQuotedTweet = false,
-          forUserId = query.getOptionalUserId, // Needed to get protected Tweets for certain users
-          visibilityPolicy = tp.TweetVisibilityPolicy.UserVisible,
-          safetyLevel = Some(sp.SafetyLevel.FilterNone) // VF is handled in the For You product
-        )
-      ).map {
-        case tp.GetTweetFieldsResult(_, tp.TweetFieldsResultState.Found(found), _, _) =>
-          cacheClient.set(candidate.candidate.id, found.tweet, CacheTTL)
-          createFeatureMap(found.tweet)
-        case _ =>
-          DefaultFeatureMap + (AuthorIdFeature, candidate.features.getOrElse(AuthorIdFeature, None))
-      }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TwhinAuthorFollowFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TwhinAuthorFollowFeatureHydrator.scala
deleted file mode 100644
index 2e531bfb2..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TwhinAuthorFollowFeatureHydrator.scala
+++ /dev/null
@@ -1,85 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TwhinAuthorFollowFeatureRepository
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.twhin_embeddings.TwhinAuthorFollowEmbeddingsAdapter
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.home_mixer.util.ObservedKeyValueResultHandler
-import com.twitter.ml.api.DataRecord
-import com.twitter.ml.api.{thriftscala => ml}
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.servo.repository.KeyValueRepository
-import com.twitter.servo.repository.KeyValueResult
-import com.twitter.stitch.Stitch
-import com.twitter.util.Future
-import com.twitter.util.Try
-import javax.inject.Inject
-import javax.inject.Named
-import javax.inject.Singleton
-import scala.collection.JavaConverters._
-
-object TwhinAuthorFollowFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class TwhinAuthorFollowFeatureHydrator @Inject() (
-  @Named(TwhinAuthorFollowFeatureRepository)
-  client: KeyValueRepository[Seq[Long], Long, ml.FloatTensor],
-  override val statsReceiver: StatsReceiver)
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate]
-    with ObservedKeyValueResultHandler {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("TwhinAuthorFollow")
-
-  override val features: Set[Feature[_, _]] = Set(TwhinAuthorFollowFeature)
-
-  override val statScope: String = identifier.toString
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offloadFuture {
-    val possiblyAuthorIds = extractKeys(candidates)
-    val authorIds = possiblyAuthorIds.flatten
-
-    val response: Future[KeyValueResult[Long, ml.FloatTensor]] =
-      if (authorIds.isEmpty) Future.value(KeyValueResult.empty) else client(authorIds)
-
-    response.map { result =>
-      possiblyAuthorIds.map { possiblyAuthorId =>
-        val value = observedGet(key = possiblyAuthorId, keyValueResult = result)
-        val transformedValue = postTransformer(value)
-
-        FeatureMapBuilder().add(TwhinAuthorFollowFeature, transformedValue).build()
-      }
-    }
-  }
-
-  private def postTransformer(embedding: Try[Option[ml.FloatTensor]]): Try[DataRecord] = {
-    embedding.map { floatTensor =>
-      TwhinAuthorFollowEmbeddingsAdapter.adaptToDataRecords(floatTensor).asScala.head
-    }
-  }
-
-  private def extractKeys(
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Seq[Option[Long]] = {
-    candidates.map { candidate =>
-      CandidatesUtil.getOriginalAuthorId(candidate.features)
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TwhinUserEngagementQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TwhinUserEngagementQueryFeatureHydrator.scala
deleted file mode 100644
index f43abc98f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TwhinUserEngagementQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,72 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TwhinUserEngagementFeatureRepository
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.twhin_embeddings.TwhinUserEngagementEmbeddingsAdapter
-import com.twitter.ml.api.DataRecord
-import com.twitter.ml.api.{thriftscala => ml}
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.servo.repository.KeyValueRepository
-import com.twitter.stitch.Stitch
-import com.twitter.util.Return
-import com.twitter.util.Throw
-import javax.inject.Inject
-import javax.inject.Named
-import javax.inject.Singleton
-import scala.collection.JavaConverters._
-
-object TwhinUserEngagementFeature
-    extends DataRecordInAFeature[PipelineQuery]
-    with FeatureWithDefaultOnFailure[PipelineQuery, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class TwhinUserEngagementQueryFeatureHydrator @Inject() (
-  @Named(TwhinUserEngagementFeatureRepository)
-  client: KeyValueRepository[Seq[Long], Long, ml.FloatTensor],
-  statsReceiver: StatsReceiver)
-    extends QueryFeatureHydrator[PipelineQuery] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("TwhinUserEngagement")
-
-  override val features: Set[Feature[_, _]] = Set(TwhinUserEngagementFeature)
-
-  private val scopedStatsReceiver = statsReceiver.scope(getClass.getSimpleName)
-  private val keyFoundCounter = scopedStatsReceiver.counter("key/found")
-  private val keyLossCounter = scopedStatsReceiver.counter("key/loss")
-  private val keyFailureCounter = scopedStatsReceiver.counter("key/failure")
-
-  override def hydrate(query: PipelineQuery): Stitch[FeatureMap] = {
-    val userId = query.getRequiredUserId
-    Stitch.callFuture(client(Seq(userId))).map { results =>
-      val embedding: Option[ml.FloatTensor] = results(userId) match {
-        case Return(value) =>
-          if (value.exists(_.floats.nonEmpty)) keyFoundCounter.incr()
-          else keyLossCounter.incr()
-          value
-        case Throw(_) =>
-          keyFailureCounter.incr()
-          None
-        case _ =>
-          None
-      }
-
-      val dataRecord =
-        TwhinUserEngagementEmbeddingsAdapter.adaptToDataRecords(embedding).asScala.head
-
-      FeatureMapBuilder()
-        .add(TwhinUserEngagementFeature, dataRecord)
-        .build()
-    }
-  }
-
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TwhinUserFollowQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TwhinUserFollowQueryFeatureHydrator.scala
deleted file mode 100644
index 925043e1e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/TwhinUserFollowQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,70 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TwhinUserFollowFeatureRepository
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.twhin_embeddings.TwhinUserFollowEmbeddingsAdapter
-import com.twitter.ml.api.DataRecord
-import com.twitter.ml.api.{thriftscala => ml}
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.servo.repository.KeyValueRepository
-import com.twitter.stitch.Stitch
-import com.twitter.util.Return
-import com.twitter.util.Throw
-import javax.inject.Inject
-import javax.inject.Named
-import javax.inject.Singleton
-import scala.collection.JavaConverters._
-
-object TwhinUserFollowFeature
-    extends DataRecordInAFeature[PipelineQuery]
-    with FeatureWithDefaultOnFailure[PipelineQuery, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class TwhinUserFollowQueryFeatureHydrator @Inject() (
-  @Named(TwhinUserFollowFeatureRepository)
-  client: KeyValueRepository[Seq[Long], Long, ml.FloatTensor],
-  statsReceiver: StatsReceiver)
-    extends QueryFeatureHydrator[PipelineQuery] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("TwhinUserFollow")
-
-  override val features: Set[Feature[_, _]] = Set(TwhinUserFollowFeature)
-
-  private val scopedStatsReceiver = statsReceiver.scope(getClass.getSimpleName)
-  private val keyFoundCounter = scopedStatsReceiver.counter("key/found")
-  private val keyLossCounter = scopedStatsReceiver.counter("key/loss")
-  private val keyFailureCounter = scopedStatsReceiver.counter("key/failure")
-
-  override def hydrate(query: PipelineQuery): Stitch[FeatureMap] = {
-    val userId = query.getRequiredUserId
-    Stitch.callFuture(client(Seq(userId))).map { results =>
-      val embedding: Option[ml.FloatTensor] = results(userId) match {
-        case Return(value) =>
-          if (value.exists(_.floats.nonEmpty)) keyFoundCounter.incr()
-          else keyLossCounter.incr()
-          value
-        case Throw(_) =>
-          keyFailureCounter.incr()
-          None
-        case _ =>
-          None
-      }
-
-      val dataRecord = TwhinUserFollowEmbeddingsAdapter.adaptToDataRecords(embedding).asScala.head
-
-      FeatureMapBuilder()
-        .add(TwhinUserFollowFeature, dataRecord)
-        .build()
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/UserFollowedTopicIdsFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/UserFollowedTopicIdsFeatureHydrator.scala
deleted file mode 100644
index 90f618fd0..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/UserFollowedTopicIdsFeatureHydrator.scala
+++ /dev/null
@@ -1,76 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.UserFollowedTopicIdsRepository
-import com.twitter.home_mixer.util.ObservedKeyValueResultHandler
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.servo.keyvalue.KeyValueResult
-import com.twitter.servo.repository.KeyValueRepository
-import com.twitter.stitch.Stitch
-import com.twitter.util.Future
-import com.twitter.util.Try
-import javax.inject.Inject
-import javax.inject.Named
-import javax.inject.Singleton
-
-object UserFollowedTopicIdsFeature extends Feature[TweetCandidate, Seq[Long]]
-
-@Singleton
-class UserFollowedTopicIdsFeatureHydrator @Inject() (
-  @Named(UserFollowedTopicIdsRepository)
-  client: KeyValueRepository[Seq[Long], Long, Seq[Long]],
-  override val statsReceiver: StatsReceiver)
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate]
-    with ObservedKeyValueResultHandler {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("UserFollowedTopicIds")
-
-  override val features: Set[Feature[_, _]] = Set(UserFollowedTopicIdsFeature)
-
-  override val statScope: String = identifier.toString
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offloadFuture {
-    val possiblyAuthorIds = extractKeys(candidates)
-    val authorIds = possiblyAuthorIds.flatten
-
-    val response: Future[KeyValueResult[Long, Seq[Long]]] =
-      if (authorIds.isEmpty) Future.value(KeyValueResult.empty) else client(authorIds)
-
-    response.map { result =>
-      possiblyAuthorIds.map { possiblyAuthorId =>
-        val value = observedGet(key = possiblyAuthorId, keyValueResult = result)
-        val transformedValue = postTransformer(value)
-
-        FeatureMapBuilder().add(UserFollowedTopicIdsFeature, transformedValue).build()
-      }
-    }
-  }
-
-  private def postTransformer(input: Try[Option[Seq[Long]]]): Try[Seq[Long]] = {
-    input.map(_.getOrElse(Seq.empty[Long]))
-  }
-
-  private def extractKeys(
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Seq[Option[Long]] = {
-    candidates.map { candidate =>
-      candidate.features
-        .getTry(AuthorIdFeature)
-        .toOption
-        .flatten
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/UserLanguagesFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/UserLanguagesFeatureHydrator.scala
deleted file mode 100644
index e2431c43e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/UserLanguagesFeatureHydrator.scala
+++ /dev/null
@@ -1,46 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.UserLanguagesRepository
-import com.twitter.home_mixer.util.ObservedKeyValueResultHandler
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.search.common.constants.{thriftscala => scc}
-import com.twitter.servo.repository.KeyValueRepository
-import com.twitter.stitch.Stitch
-import javax.inject.Inject
-import javax.inject.Named
-import javax.inject.Singleton
-
-object UserLanguagesFeature extends Feature[PipelineQuery, Seq[scc.ThriftLanguage]]
-
-@Singleton
-case class UserLanguagesFeatureHydrator @Inject() (
-  @Named(UserLanguagesRepository) client: KeyValueRepository[Seq[Long], Long, Seq[
-    scc.ThriftLanguage
-  ]],
-  statsReceiver: StatsReceiver)
-    extends QueryFeatureHydrator[PipelineQuery]
-    with ObservedKeyValueResultHandler {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("UserLanguages")
-
-  override val features: Set[Feature[_, _]] = Set(UserLanguagesFeature)
-
-  override val statScope: String = identifier.toString
-
-  override def hydrate(query: PipelineQuery): Stitch[FeatureMap] = {
-    val key = query.getRequiredUserId
-    Stitch.callFuture(client(Seq(key))).map { result =>
-      val feature =
-        observedGet(key = Some(key), keyValueResult = result).map(_.getOrElse(Seq.empty))
-      FeatureMapBuilder()
-        .add(UserLanguagesFeature, feature)
-        .build()
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/UserStateQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/UserStateQueryFeatureHydrator.scala
deleted file mode 100644
index 5a61f31fb..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/UserStateQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,53 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.UserStateFeature
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.user_health.v1.{thriftscala => uhv1}
-import com.twitter.timelines.user_health.{thriftscala => uh}
-import com.twitter.user_session_store.ReadOnlyUserSessionStore
-import com.twitter.user_session_store.ReadRequest
-import com.twitter.user_session_store.UserSessionDataset
-import com.twitter.user_session_store.UserSessionDataset.UserSessionDataset
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class UserStateQueryFeatureHydrator @Inject() (
-  userSessionStore: ReadOnlyUserSessionStore)
-    extends QueryFeatureHydrator[PipelineQuery] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("UserState")
-
-  override val features: Set[Feature[_, _]] = Set(UserStateFeature)
-
-  private val datasets: Set[UserSessionDataset] = Set(UserSessionDataset.UserHealth)
-
-  override def hydrate(query: PipelineQuery): Stitch[FeatureMap] = {
-    userSessionStore
-      .read(ReadRequest(query.getRequiredUserId, datasets))
-      .map { userSession =>
-        val userState = userSession.flatMap {
-          _.userHealth match {
-            case Some(uh.UserHealth.V1(uhv1.UserHealth(userState))) => userState
-            case _ => None
-          }
-        }
-
-        FeatureMapBuilder()
-          .add(UserStateFeature, userState)
-          .build()
-      }
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.9)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/UtegFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/UtegFeatureHydrator.scala
deleted file mode 100644
index 96b9657e7..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/UtegFeatureHydrator.scala
+++ /dev/null
@@ -1,102 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator
-
-import com.twitter.home_mixer.model.HomeFeatures.FavoritedByCountFeature
-import com.twitter.home_mixer.model.HomeFeatures.FavoritedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.FromInNetworkSourceFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.RealGraphInNetworkScoresFeature
-import com.twitter.home_mixer.model.HomeFeatures.RepliedByCountFeature
-import com.twitter.home_mixer.model.HomeFeatures.RepliedByEngagerIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.RetweetedByCountFeature
-import com.twitter.home_mixer.model.HomeFeatures.RetweetedByEngagerIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceTweetIdFeature
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.UtegSocialProofRepository
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.Conditionally
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.recos.recos_common.{thriftscala => rc}
-import com.twitter.recos.user_tweet_entity_graph.{thriftscala => uteg}
-import com.twitter.servo.keyvalue.KeyValueResult
-import com.twitter.servo.repository.KeyValueRepository
-import com.twitter.stitch.Stitch
-import javax.inject.Inject
-import javax.inject.Named
-import javax.inject.Singleton
-
-@Singleton
-class UtegFeatureHydrator @Inject() (
-  @Named(UtegSocialProofRepository) client: KeyValueRepository[
-    (Seq[Long], (Long, Map[Long, Double])),
-    Long,
-    uteg.TweetRecommendation
-  ]) extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate]
-    with Conditionally[PipelineQuery] {
-
-  override val identifier: FeatureHydratorIdentifier = FeatureHydratorIdentifier("Uteg")
-
-  override val features: Set[Feature[_, _]] = Set(
-    FavoritedByUserIdsFeature,
-    RetweetedByEngagerIdsFeature,
-    RepliedByEngagerIdsFeature,
-    FavoritedByCountFeature,
-    RetweetedByCountFeature,
-    RepliedByCountFeature
-  )
-
-  override def onlyIf(query: PipelineQuery): Boolean = query.features
-    .exists(_.getOrElse(RealGraphInNetworkScoresFeature, Map.empty[Long, Double]).nonEmpty)
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offloadFuture {
-    val seedUserWeights = query.features.map(_.get(RealGraphInNetworkScoresFeature)).get
-
-    val sourceTweetIds = candidates.flatMap(_.features.getOrElse(SourceTweetIdFeature, None))
-    val inReplyToTweetIds = candidates.flatMap(_.features.getOrElse(InReplyToTweetIdFeature, None))
-    val tweetIds = candidates.map(_.candidate.id)
-    val tweetIdsToSend = (tweetIds ++ sourceTweetIds ++ inReplyToTweetIds).distinct
-
-    val utegQuery = (tweetIdsToSend, (query.getRequiredUserId, seedUserWeights))
-
-    client(utegQuery).map(handleResponse(candidates, _))
-  }
-
-  private def handleResponse(
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]],
-    results: KeyValueResult[Long, uteg.TweetRecommendation],
-  ): Seq[FeatureMap] = {
-    candidates.map { candidate =>
-      val inNetwork = candidate.features.getOrElse(FromInNetworkSourceFeature, false)
-      val candidateProof = results(candidate.candidate.id).toOption.flatten
-      val sourceProof = candidate.features
-        .getOrElse(SourceTweetIdFeature, None).flatMap(results(_).toOption.flatten)
-      val proofs = Seq(candidateProof, sourceProof).flatten.map(_.socialProofByType)
-
-      val favoritedBy = proofs.flatMap(_.get(rc.SocialProofType.Favorite)).flatten
-      val retweetedBy = proofs.flatMap(_.get(rc.SocialProofType.Retweet)).flatten
-      val repliedBy = proofs.flatMap(_.get(rc.SocialProofType.Reply)).flatten
-
-      val (favoritedByCount, retweetedByCount, repliedByCount) =
-        if (!inNetwork) {
-          (favoritedBy.size.toDouble, retweetedBy.size.toDouble, repliedBy.size.toDouble)
-        } else { (0.0, 0.0, 0.0) }
-
-      FeatureMapBuilder()
-        .add(FavoritedByUserIdsFeature, favoritedBy)
-        .add(RetweetedByEngagerIdsFeature, retweetedBy)
-        .add(RepliedByEngagerIdsFeature, repliedBy)
-        .add(FavoritedByCountFeature, favoritedByCount)
-        .add(RetweetedByCountFeature, retweetedByCount)
-        .add(RepliedByCountFeature, repliedByCount)
-        .build()
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/author_features/AuthorFeaturesAdapter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/author_features/AuthorFeaturesAdapter.scala
deleted file mode 100644
index cbaa3f18c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/author_features/AuthorFeaturesAdapter.scala
+++ /dev/null
@@ -1,92 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.author_features
-
-import com.twitter.home_mixer.util.DataRecordUtil
-import com.twitter.ml.api.DataRecord
-import com.twitter.ml.api.Feature
-import com.twitter.ml.api.FeatureContext
-import com.twitter.ml.api.util.CompactDataRecordConverter
-import com.twitter.ml.api.util.FDsl._
-import com.twitter.timelines.author_features.v1.{thriftjava => af}
-import com.twitter.timelines.prediction.common.adapters.TimelinesAdapterBase
-import com.twitter.timelines.prediction.common.aggregates.TimelinesAggregationConfig
-import com.twitter.timelines.prediction.features.user_health.UserHealthFeatures
-import scala.collection.JavaConverters._
-
-object AuthorFeaturesAdapter extends TimelinesAdapterBase[af.AuthorFeatures] {
-
-  private val Prefix = "original_author.timelines.original_author_aggregates."
-
-  private val typedAggregateGroups =
-    TimelinesAggregationConfig.originalAuthorAggregatesV1.buildTypedAggregateGroups()
-
-  private val aggregateFeaturesRenameMap: Map[Feature[_], Feature[_]] =
-    typedAggregateGroups.map(_.outputFeaturesToRenamedOutputFeatures(Prefix)).reduce(_ ++ _)
-
-  private val prefixedOriginalAuthorAggregateFeatures =
-    typedAggregateGroups.flatMap(_.allOutputFeatures).map { feature =>
-      aggregateFeaturesRenameMap.getOrElse(feature, feature)
-    }
-
-  private val authorFeatures = prefixedOriginalAuthorAggregateFeatures ++ Seq(
-    UserHealthFeatures.AuthorState,
-    UserHealthFeatures.NumAuthorFollowers,
-    UserHealthFeatures.NumAuthorConnectDays,
-    UserHealthFeatures.NumAuthorConnect
-  )
-
-  private val aggregateFeatureContext: FeatureContext =
-    new FeatureContext(typedAggregateGroups.flatMap(_.allOutputFeatures).asJava)
-
-  private lazy val prefixedAggregateFeatureContext: FeatureContext =
-    new FeatureContext(prefixedOriginalAuthorAggregateFeatures.asJava)
-
-  override val getFeatureContext: FeatureContext = new FeatureContext(authorFeatures: _*)
-
-  override val commonFeatures: Set[Feature[_]] = Set.empty
-
-  private val compactDataRecordConverter = new CompactDataRecordConverter()
-
-  override def adaptToDataRecords(
-    authorFeatures: af.AuthorFeatures
-  ): java.util.List[DataRecord] = {
-    val dataRecord =
-      if (authorFeatures.aggregates != null) {
-        val originalAuthorAggregatesDataRecord =
-          compactDataRecordConverter.compactDataRecordToDataRecord(authorFeatures.aggregates)
-
-        DataRecordUtil.applyRename(
-          originalAuthorAggregatesDataRecord,
-          aggregateFeatureContext,
-          prefixedAggregateFeatureContext,
-          aggregateFeaturesRenameMap)
-      } else new DataRecord
-
-    if (authorFeatures.user_health != null) {
-      val userHealth = authorFeatures.user_health
-
-      if (userHealth.user_state != null) {
-        dataRecord.setFeatureValue(
-          UserHealthFeatures.AuthorState,
-          userHealth.user_state.getValue.toLong
-        )
-      }
-
-      dataRecord.setFeatureValue(
-        UserHealthFeatures.NumAuthorFollowers,
-        userHealth.num_followers.toDouble
-      )
-
-      dataRecord.setFeatureValue(
-        UserHealthFeatures.NumAuthorConnectDays,
-        userHealth.num_connect_days.toDouble
-      )
-
-      dataRecord.setFeatureValue(
-        UserHealthFeatures.NumAuthorConnect,
-        userHealth.num_connect.toDouble
-      )
-    }
-
-    List(dataRecord).asJava
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/author_features/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/author_features/BUILD.bazel
deleted file mode 100644
index 7a00a9b26..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/author_features/BUILD.bazel
+++ /dev/null
@@ -1,18 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "src/java/com/twitter/ml/api:api-base",
-        "src/java/com/twitter/ml/api/util",
-        "src/scala/com/twitter/ml/api/util",
-        "src/scala/com/twitter/timelines/prediction/common/adapters:base",
-        "src/scala/com/twitter/timelines/prediction/common/aggregates",
-        "src/scala/com/twitter/timelines/prediction/features/user_health",
-        "src/thrift/com/twitter/ml/api:data-java",
-        "src/thrift/com/twitter/timelines/author_features:thrift-java",
-        "timelines/data_processing/ml_util/aggregation_framework",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/content/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/content/BUILD.bazel
deleted file mode 100644
index 6a9393121..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/content/BUILD.bazel
+++ /dev/null
@@ -1,18 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "src/java/com/twitter/ml/api:api-base",
-        "src/scala/com/twitter/ml/api:api-base",
-        "src/scala/com/twitter/ml/api/util",
-        "src/scala/com/twitter/timelines/prediction/common/adapters",
-        "src/scala/com/twitter/timelines/prediction/common/adapters:base",
-        "src/scala/com/twitter/timelines/prediction/features/common",
-        "src/scala/com/twitter/timelines/prediction/features/conversation_features",
-        "src/thrift/com/twitter/ml/api:data-java",
-        "src/thrift/com/twitter/ml/api:data-scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/content/ContentFeatureAdapter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/content/ContentFeatureAdapter.scala
deleted file mode 100644
index 2d73ece45..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/content/ContentFeatureAdapter.scala
+++ /dev/null
@@ -1,273 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.content
-
-import com.twitter.home_mixer.model.ContentFeatures
-import com.twitter.ml.api.Feature
-import com.twitter.ml.api.FeatureContext
-import com.twitter.ml.api.RichDataRecord
-import com.twitter.ml.api.util.DataRecordConverters._
-import com.twitter.timelines.prediction.common.adapters.TimelinesMutatingAdapterBase
-import com.twitter.timelines.prediction.common.adapters.TweetLengthType
-import com.twitter.timelines.prediction.features.common.TimelinesSharedFeatures
-import com.twitter.timelines.prediction.features.conversation_features.ConversationFeatures
-import scala.collection.JavaConverters._
-
-object ContentFeatureAdapter extends TimelinesMutatingAdapterBase[Option[ContentFeatures]] {
-
-  override val getFeatureContext: FeatureContext = new FeatureContext(
-    ConversationFeatures.IS_SELF_THREAD_TWEET,
-    ConversationFeatures.IS_LEAF_IN_SELF_THREAD,
-    TimelinesSharedFeatures.ASPECT_RATIO_DEN,
-    TimelinesSharedFeatures.ASPECT_RATIO_NUM,
-    TimelinesSharedFeatures.BIT_RATE,
-    TimelinesSharedFeatures.CLASSIFICATION_LABELS,
-    TimelinesSharedFeatures.COLOR_1_BLUE,
-    TimelinesSharedFeatures.COLOR_1_GREEN,
-    TimelinesSharedFeatures.COLOR_1_PERCENTAGE,
-    TimelinesSharedFeatures.COLOR_1_RED,
-    TimelinesSharedFeatures.FACE_AREAS,
-    TimelinesSharedFeatures.HAS_APP_INSTALL_CALL_TO_ACTION,
-    TimelinesSharedFeatures.HAS_DESCRIPTION,
-    TimelinesSharedFeatures.HAS_QUESTION,
-    TimelinesSharedFeatures.HAS_SELECTED_PREVIEW_IMAGE,
-    TimelinesSharedFeatures.HAS_TITLE,
-    TimelinesSharedFeatures.HAS_VISIT_SITE_CALL_TO_ACTION,
-    TimelinesSharedFeatures.HAS_WATCH_NOW_CALL_TO_ACTION,
-    TimelinesSharedFeatures.HEIGHT_1,
-    TimelinesSharedFeatures.HEIGHT_2,
-    TimelinesSharedFeatures.HEIGHT_3,
-    TimelinesSharedFeatures.HEIGHT_4,
-    TimelinesSharedFeatures.IS_360,
-    TimelinesSharedFeatures.IS_EMBEDDABLE,
-    TimelinesSharedFeatures.IS_MANAGED,
-    TimelinesSharedFeatures.IS_MONETIZABLE,
-    TimelinesSharedFeatures.MEDIA_PROVIDERS,
-    TimelinesSharedFeatures.NUM_CAPS,
-    TimelinesSharedFeatures.NUM_COLOR_PALLETTE_ITEMS,
-    TimelinesSharedFeatures.NUM_FACES,
-    TimelinesSharedFeatures.NUM_MEDIA_TAGS,
-    TimelinesSharedFeatures.NUM_NEWLINES,
-    TimelinesSharedFeatures.NUM_STICKERS,
-    TimelinesSharedFeatures.NUM_WHITESPACES,
-    TimelinesSharedFeatures.RESIZE_METHOD_1,
-    TimelinesSharedFeatures.RESIZE_METHOD_2,
-    TimelinesSharedFeatures.RESIZE_METHOD_3,
-    TimelinesSharedFeatures.RESIZE_METHOD_4,
-    TimelinesSharedFeatures.TWEET_LENGTH,
-    TimelinesSharedFeatures.TWEET_LENGTH_TYPE,
-    TimelinesSharedFeatures.VIDEO_DURATION,
-    TimelinesSharedFeatures.VIEW_COUNT,
-    TimelinesSharedFeatures.WIDTH_1,
-    TimelinesSharedFeatures.WIDTH_2,
-    TimelinesSharedFeatures.WIDTH_3,
-    TimelinesSharedFeatures.WIDTH_4,
-  )
-
-  override val commonFeatures: Set[Feature[_]] = Set.empty
-
-  private def getTweetLengthType(tweetLength: Int): Long = {
-    tweetLength match {
-      case x if 0 > x || 280 < x => TweetLengthType.INVALID
-      case x if 0 <= x && x <= 30 => TweetLengthType.VERY_SHORT
-      case x if 30 < x && x <= 60 => TweetLengthType.SHORT
-      case x if 60 < x && x <= 90 => TweetLengthType.MEDIUM
-      case x if 90 < x && x <= 140 => TweetLengthType.LENGTHY
-      case x if 140 < x && x <= 210 => TweetLengthType.VERY_LENGTHY
-      case x if x > 210 => TweetLengthType.MAXIMUM_LENGTH
-    }
-  }
-
-  override def setFeatures(
-    contentFeatures: Option[ContentFeatures],
-    richDataRecord: RichDataRecord
-  ): Unit = {
-    if (contentFeatures.nonEmpty) {
-      val features = contentFeatures.get
-      // Conversation Features
-      richDataRecord.setFeatureValueFromOption(
-        ConversationFeatures.IS_SELF_THREAD_TWEET,
-        Some(features.selfThreadMetadata.nonEmpty)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        ConversationFeatures.IS_LEAF_IN_SELF_THREAD,
-        features.selfThreadMetadata.map(_.isLeaf)
-      )
-
-      // Media Features
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.ASPECT_RATIO_DEN,
-        features.aspectRatioDen.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.ASPECT_RATIO_NUM,
-        features.aspectRatioNum.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.BIT_RATE,
-        features.bitRate.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.HEIGHT_1,
-        features.heights.flatMap(_.lift(0)).map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.HEIGHT_2,
-        features.heights.flatMap(_.lift(1)).map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.HEIGHT_3,
-        features.heights.flatMap(_.lift(2)).map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.HEIGHT_4,
-        features.heights.flatMap(_.lift(3)).map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.NUM_MEDIA_TAGS,
-        features.numMediaTags.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.RESIZE_METHOD_1,
-        features.resizeMethods.flatMap(_.lift(0)).map(_.toLong)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.RESIZE_METHOD_2,
-        features.resizeMethods.flatMap(_.lift(1)).map(_.toLong)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.RESIZE_METHOD_3,
-        features.resizeMethods.flatMap(_.lift(2)).map(_.toLong)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.RESIZE_METHOD_4,
-        features.resizeMethods.flatMap(_.lift(3)).map(_.toLong)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.VIDEO_DURATION,
-        features.videoDurationMs.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.WIDTH_1,
-        features.widths.flatMap(_.lift(0)).map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.WIDTH_2,
-        features.widths.flatMap(_.lift(1)).map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.WIDTH_3,
-        features.widths.flatMap(_.lift(2)).map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.WIDTH_4,
-        features.widths.flatMap(_.lift(3)).map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.NUM_COLOR_PALLETTE_ITEMS,
-        features.numColors.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.COLOR_1_RED,
-        features.dominantColorRed.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.COLOR_1_BLUE,
-        features.dominantColorBlue.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.COLOR_1_GREEN,
-        features.dominantColorGreen.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.COLOR_1_PERCENTAGE,
-        features.dominantColorPercentage
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.MEDIA_PROVIDERS,
-        features.mediaOriginProviders.map(_.toSet.asJava)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.IS_360,
-        features.is360
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.VIEW_COUNT,
-        features.viewCount.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.IS_MANAGED,
-        features.isManaged
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.IS_MONETIZABLE,
-        features.isMonetizable
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.IS_EMBEDDABLE,
-        features.isEmbeddable
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.NUM_STICKERS,
-        features.stickerIds.map(_.length.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.NUM_FACES,
-        features.faceAreas.map(_.length.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.FACE_AREAS,
-        // guard for exception from max on empty seq
-        features.faceAreas.map(faceAreas =>
-          faceAreas.map(_.toDouble).reduceOption(_ max _).getOrElse(0.0))
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.HAS_SELECTED_PREVIEW_IMAGE,
-        features.hasSelectedPreviewImage
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.HAS_TITLE,
-        features.hasTitle
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.HAS_DESCRIPTION,
-        features.hasDescription
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.HAS_VISIT_SITE_CALL_TO_ACTION,
-        features.hasVisitSiteCallToAction
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.HAS_APP_INSTALL_CALL_TO_ACTION,
-        features.hasAppInstallCallToAction
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.HAS_WATCH_NOW_CALL_TO_ACTION,
-        features.hasWatchNowCallToAction
-      )
-      // text features
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.NUM_CAPS,
-        Some(features.numCaps.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.TWEET_LENGTH,
-        Some(features.length.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.TWEET_LENGTH_TYPE,
-        Some(getTweetLengthType(features.length.toInt))
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.NUM_WHITESPACES,
-        Some(features.numWhiteSpaces.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.HAS_QUESTION,
-        Some(features.hasQuestion)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.NUM_NEWLINES,
-        features.numNewlines.map(_.toDouble)
-      )
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/content/InReplyToContentFeatureAdapter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/content/InReplyToContentFeatureAdapter.scala
deleted file mode 100644
index fa27ddac0..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/content/InReplyToContentFeatureAdapter.scala
+++ /dev/null
@@ -1,75 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.content
-
-import com.twitter.home_mixer.model.ContentFeatures
-import com.twitter.ml.api.Feature
-import com.twitter.ml.api.FeatureContext
-import com.twitter.ml.api.RichDataRecord
-import com.twitter.ml.api.util.DataRecordConverters.RichDataRecordWrapper
-import com.twitter.timelines.prediction.common.adapters.TimelinesMutatingAdapterBase
-import com.twitter.timelines.prediction.features.common.InReplyToTweetTimelinesSharedFeatures
-
-object InReplyToContentFeatureAdapter
-    extends TimelinesMutatingAdapterBase[Option[ContentFeatures]] {
-
-  override val getFeatureContext: FeatureContext = new FeatureContext(
-    // Media Features
-    InReplyToTweetTimelinesSharedFeatures.ASPECT_RATIO_DEN,
-    InReplyToTweetTimelinesSharedFeatures.ASPECT_RATIO_NUM,
-    InReplyToTweetTimelinesSharedFeatures.HEIGHT_1,
-    InReplyToTweetTimelinesSharedFeatures.HEIGHT_2,
-    InReplyToTweetTimelinesSharedFeatures.VIDEO_DURATION,
-    // TextFeatures
-    InReplyToTweetTimelinesSharedFeatures.NUM_CAPS,
-    InReplyToTweetTimelinesSharedFeatures.TWEET_LENGTH,
-    InReplyToTweetTimelinesSharedFeatures.HAS_QUESTION,
-  )
-
-  override val commonFeatures: Set[Feature[_]] = Set.empty
-
-  override def setFeatures(
-    contentFeatures: Option[ContentFeatures],
-    richDataRecord: RichDataRecord
-  ): Unit = {
-    if (contentFeatures.nonEmpty) {
-      val features = contentFeatures.get
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToTweetTimelinesSharedFeatures.ASPECT_RATIO_DEN,
-        features.aspectRatioNum.map(_.toDouble)
-      )
-
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToTweetTimelinesSharedFeatures.ASPECT_RATIO_NUM,
-        features.aspectRatioNum.map(_.toDouble)
-      )
-
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToTweetTimelinesSharedFeatures.HEIGHT_1,
-        features.heights.flatMap(_.lift(0)).map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToTweetTimelinesSharedFeatures.HEIGHT_2,
-        features.heights.flatMap(_.lift(1)).map(_.toDouble)
-      )
-
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToTweetTimelinesSharedFeatures.VIDEO_DURATION,
-        features.videoDurationMs.map(_.toDouble)
-      )
-
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToTweetTimelinesSharedFeatures.NUM_CAPS,
-        Some(features.numCaps.toDouble)
-      )
-
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToTweetTimelinesSharedFeatures.TWEET_LENGTH,
-        Some(features.length.toDouble)
-      )
-
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToTweetTimelinesSharedFeatures.HAS_QUESTION,
-        Some(features.hasQuestion)
-      )
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/earlybird/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/earlybird/BUILD.bazel
deleted file mode 100644
index 9428c0d39..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/earlybird/BUILD.bazel
+++ /dev/null
@@ -1,19 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "src/java/com/twitter/ml/api:api-base",
-        "src/scala/com/twitter/ml/api:api-base",
-        "src/scala/com/twitter/ml/api/util",
-        "src/scala/com/twitter/timelines/prediction/common/adapters:base",
-        "src/scala/com/twitter/timelines/prediction/features/common",
-        "src/scala/com/twitter/timelines/prediction/features/recap",
-        "src/scala/com/twitter/timelines/util",
-        "src/thrift/com/twitter/ml/api:data-java",
-        "src/thrift/com/twitter/ml/api:data-scala",
-        "src/thrift/com/twitter/search/common:features-scala",
-        "timelines/src/main/scala/com/twitter/timelines/util",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/earlybird/EarlybirdAdapter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/earlybird/EarlybirdAdapter.scala
deleted file mode 100644
index 5a0207e8a..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/earlybird/EarlybirdAdapter.scala
+++ /dev/null
@@ -1,457 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.earlybird
-
-import com.twitter.ml.api.Feature
-import com.twitter.ml.api.FeatureContext
-import com.twitter.ml.api.RichDataRecord
-import com.twitter.ml.api.util.DataRecordConverters._
-import com.twitter.timelines.prediction.common.adapters.TimelinesMutatingAdapterBase
-import com.twitter.search.common.features.{thriftscala => sc}
-import com.twitter.timelines.prediction.features.common.TimelinesSharedFeatures
-import com.twitter.timelines.prediction.features.recap.RecapFeatures
-import com.twitter.timelines.util.UrlExtractorUtil
-import java.lang.{Boolean => JBoolean}
-import java.lang.{Double => JDouble}
-import java.util.{Map => JMap}
-import scala.collection.JavaConverters._
-
-object EarlybirdAdapter extends TimelinesMutatingAdapterBase[Option[sc.ThriftTweetFeatures]] {
-
-  override val getFeatureContext: FeatureContext = new FeatureContext(
-    RecapFeatures.BIDIRECTIONAL_FAV_COUNT,
-    RecapFeatures.BIDIRECTIONAL_REPLY_COUNT,
-    RecapFeatures.BIDIRECTIONAL_RETWEET_COUNT,
-    RecapFeatures.BLENDER_SCORE,
-    RecapFeatures.CONTAINS_MEDIA,
-    RecapFeatures.CONVERSATIONAL_COUNT,
-    RecapFeatures.EMBEDS_IMPRESSION_COUNT,
-    RecapFeatures.EMBEDS_URL_COUNT,
-    RecapFeatures.FAV_COUNT,
-    RecapFeatures.FAV_COUNT_V2,
-    RecapFeatures.FROM_INACTIVE_USER,
-    RecapFeatures.FROM_MUTUAL_FOLLOW,
-    RecapFeatures.FROM_VERIFIED_ACCOUNT,
-    RecapFeatures.HAS_CARD,
-    RecapFeatures.HAS_CONSUMER_VIDEO,
-    RecapFeatures.HAS_HASHTAG,
-    RecapFeatures.HAS_IMAGE,
-    RecapFeatures.HAS_LINK,
-    RecapFeatures.HAS_MENTION,
-    RecapFeatures.HAS_MULTIPLE_HASHTAGS_OR_TRENDS,
-    RecapFeatures.HAS_MULTIPLE_MEDIA,
-    RecapFeatures.HAS_NATIVE_IMAGE,
-    RecapFeatures.HAS_NATIVE_VIDEO,
-    RecapFeatures.HAS_NEWS,
-    RecapFeatures.HAS_PERISCOPE,
-    RecapFeatures.HAS_PRO_VIDEO,
-    RecapFeatures.HAS_TREND,
-    RecapFeatures.HAS_VIDEO,
-    RecapFeatures.HAS_VINE,
-    RecapFeatures.HAS_VISIBLE_LINK,
-    RecapFeatures.IS_AUTHOR_BOT,
-    RecapFeatures.IS_AUTHOR_NEW,
-    RecapFeatures.IS_AUTHOR_NSFW,
-    RecapFeatures.IS_AUTHOR_PROFILE_EGG,
-    RecapFeatures.IS_AUTHOR_SPAM,
-    RecapFeatures.IS_BUSINESS_SCORE,
-    RecapFeatures.IS_OFFENSIVE,
-    RecapFeatures.IS_REPLY,
-    RecapFeatures.IS_RETWEET,
-    RecapFeatures.IS_RETWEETER_BOT,
-    RecapFeatures.IS_RETWEETER_NEW,
-    RecapFeatures.IS_RETWEETER_NSFW,
-    RecapFeatures.IS_RETWEETER_PROFILE_EGG,
-    RecapFeatures.IS_RETWEETER_SPAM,
-    RecapFeatures.IS_RETWEET_OF_REPLY,
-    RecapFeatures.IS_SENSITIVE,
-    RecapFeatures.LANGUAGE,
-    RecapFeatures.LINK_COUNT,
-    RecapFeatures.LINK_LANGUAGE,
-    RecapFeatures.MATCH_SEARCHER_LANGS,
-    RecapFeatures.MATCH_SEARCHER_MAIN_LANG,
-    RecapFeatures.MATCH_UI_LANG,
-    RecapFeatures.MENTIONED_SCREEN_NAMES,
-    RecapFeatures.MENTION_SEARCHER,
-    RecapFeatures.NUM_HASHTAGS,
-    RecapFeatures.NUM_MENTIONS,
-    RecapFeatures.PREV_USER_TWEET_ENGAGEMENT,
-    RecapFeatures.PROBABLY_FROM_FOLLOWED_AUTHOR,
-    RecapFeatures.REPLY_COUNT,
-    RecapFeatures.REPLY_COUNT_V2,
-    RecapFeatures.REPLY_OTHER,
-    RecapFeatures.REPLY_SEARCHER,
-    RecapFeatures.RETWEET_COUNT,
-    RecapFeatures.RETWEET_COUNT_V2,
-    RecapFeatures.RETWEET_DIRECTED_AT_USER_IN_FIRST_DEGREE,
-    RecapFeatures.RETWEET_OF_MUTUAL_FOLLOW,
-    RecapFeatures.RETWEET_OTHER,
-    RecapFeatures.RETWEET_SEARCHER,
-    RecapFeatures.SIGNATURE,
-    RecapFeatures.SOURCE_AUTHOR_REP,
-    RecapFeatures.TEXT_SCORE,
-    RecapFeatures.TWEET_COUNT_FROM_USER_IN_SNAPSHOT,
-    RecapFeatures.UNIDIRECTIONAL_FAV_COUNT,
-    RecapFeatures.UNIDIRECTIONAL_REPLY_COUNT,
-    RecapFeatures.UNIDIRECTIONAL_RETWEET_COUNT,
-    RecapFeatures.URL_DOMAINS,
-    RecapFeatures.USER_REP,
-    RecapFeatures.VIDEO_VIEW_COUNT,
-    // shared features
-    TimelinesSharedFeatures.WEIGHTED_FAV_COUNT,
-    TimelinesSharedFeatures.WEIGHTED_RETWEET_COUNT,
-    TimelinesSharedFeatures.WEIGHTED_REPLY_COUNT,
-    TimelinesSharedFeatures.WEIGHTED_QUOTE_COUNT,
-    TimelinesSharedFeatures.EMBEDS_IMPRESSION_COUNT_V2,
-    TimelinesSharedFeatures.EMBEDS_URL_COUNT_V2,
-    TimelinesSharedFeatures.DECAYED_FAVORITE_COUNT,
-    TimelinesSharedFeatures.DECAYED_RETWEET_COUNT,
-    TimelinesSharedFeatures.DECAYED_REPLY_COUNT,
-    TimelinesSharedFeatures.DECAYED_QUOTE_COUNT,
-    TimelinesSharedFeatures.FAKE_FAVORITE_COUNT,
-    TimelinesSharedFeatures.FAKE_RETWEET_COUNT,
-    TimelinesSharedFeatures.FAKE_REPLY_COUNT,
-    TimelinesSharedFeatures.FAKE_QUOTE_COUNT,
-    TimelinesSharedFeatures.QUOTE_COUNT,
-    TimelinesSharedFeatures.EARLYBIRD_SCORE,
-    // Safety features
-    TimelinesSharedFeatures.LABEL_ABUSIVE_FLAG,
-    TimelinesSharedFeatures.LABEL_ABUSIVE_HI_RCL_FLAG,
-    TimelinesSharedFeatures.LABEL_DUP_CONTENT_FLAG,
-    TimelinesSharedFeatures.LABEL_NSFW_HI_PRC_FLAG,
-    TimelinesSharedFeatures.LABEL_NSFW_HI_RCL_FLAG,
-    TimelinesSharedFeatures.LABEL_SPAM_FLAG,
-    TimelinesSharedFeatures.LABEL_SPAM_HI_RCL_FLAG,
-    // periscope features
-    TimelinesSharedFeatures.PERISCOPE_EXISTS,
-    TimelinesSharedFeatures.PERISCOPE_IS_LIVE,
-    TimelinesSharedFeatures.PERISCOPE_HAS_BEEN_FEATURED,
-    TimelinesSharedFeatures.PERISCOPE_IS_CURRENTLY_FEATURED,
-    TimelinesSharedFeatures.PERISCOPE_IS_FROM_QUALITY_SOURCE,
-    // VISIBLE_TOKEN_RATIO
-    TimelinesSharedFeatures.VISIBLE_TOKEN_RATIO,
-    TimelinesSharedFeatures.HAS_QUOTE,
-    TimelinesSharedFeatures.IS_COMPOSER_SOURCE_CAMERA,
-    // health features
-    TimelinesSharedFeatures.PREPORTED_TWEET_SCORE,
-    // media
-    TimelinesSharedFeatures.CLASSIFICATION_LABELS
-  )
-
-  override val commonFeatures: Set[Feature[_]] = Set.empty
-
-  override def setFeatures(
-    ebFeatures: Option[sc.ThriftTweetFeatures],
-    richDataRecord: RichDataRecord
-  ): Unit = {
-    if (ebFeatures.nonEmpty) {
-      val features = ebFeatures.get
-      richDataRecord.setFeatureValue[JDouble](
-        RecapFeatures.PREV_USER_TWEET_ENGAGEMENT,
-        features.prevUserTweetEngagement.toDouble
-      )
-      richDataRecord
-        .setFeatureValue[JBoolean](RecapFeatures.IS_SENSITIVE, features.isSensitiveContent)
-      richDataRecord
-        .setFeatureValue[JBoolean](RecapFeatures.HAS_MULTIPLE_MEDIA, features.hasMultipleMedia)
-      richDataRecord
-        .setFeatureValue[JBoolean](RecapFeatures.IS_AUTHOR_PROFILE_EGG, features.isAuthorProfileEgg)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.IS_AUTHOR_NEW, features.isAuthorNew)
-      richDataRecord
-        .setFeatureValue[JDouble](RecapFeatures.NUM_MENTIONS, features.numMentions.toDouble)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.HAS_MENTION, features.numMentions > 0)
-      richDataRecord
-        .setFeatureValue[JDouble](RecapFeatures.NUM_HASHTAGS, features.numHashtags.toDouble)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.HAS_HASHTAG, features.numHashtags > 0)
-      richDataRecord
-        .setFeatureValue[JDouble](RecapFeatures.LINK_LANGUAGE, features.linkLanguage.toDouble)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.IS_AUTHOR_NSFW, features.isAuthorNSFW)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.IS_AUTHOR_SPAM, features.isAuthorSpam)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.IS_AUTHOR_BOT, features.isAuthorBot)
-      richDataRecord.setFeatureValueFromOption(
-        RecapFeatures.LANGUAGE,
-        features.language.map(_.getValue.toLong))
-      richDataRecord.setFeatureValueFromOption(
-        RecapFeatures.SIGNATURE,
-        features.signature.map(_.toLong))
-      richDataRecord
-        .setFeatureValue[JBoolean](RecapFeatures.FROM_INACTIVE_USER, features.fromInActiveUser)
-      richDataRecord
-        .setFeatureValue[JBoolean](
-          RecapFeatures.PROBABLY_FROM_FOLLOWED_AUTHOR,
-          features.probablyFromFollowedAuthor)
-      richDataRecord
-        .setFeatureValue[JBoolean](RecapFeatures.FROM_MUTUAL_FOLLOW, features.fromMutualFollow)
-      richDataRecord.setFeatureValue[JBoolean](
-        RecapFeatures.FROM_VERIFIED_ACCOUNT,
-        features.fromVerifiedAccount)
-      richDataRecord.setFeatureValue[JDouble](RecapFeatures.USER_REP, features.userRep)
-      richDataRecord
-        .setFeatureValue[JDouble](RecapFeatures.IS_BUSINESS_SCORE, features.isBusinessScore)
-      richDataRecord
-        .setFeatureValue[JBoolean](RecapFeatures.HAS_CONSUMER_VIDEO, features.hasConsumerVideo)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.HAS_PRO_VIDEO, features.hasProVideo)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.HAS_VINE, features.hasVine)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.HAS_PERISCOPE, features.hasPeriscope)
-      richDataRecord
-        .setFeatureValue[JBoolean](RecapFeatures.HAS_NATIVE_VIDEO, features.hasNativeVideo)
-      richDataRecord
-        .setFeatureValue[JBoolean](RecapFeatures.HAS_NATIVE_IMAGE, features.hasNativeImage)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.HAS_CARD, features.hasCard)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.HAS_IMAGE, features.hasImage)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.HAS_NEWS, features.hasNews)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.HAS_VIDEO, features.hasVideo)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.CONTAINS_MEDIA, features.containsMedia)
-      richDataRecord
-        .setFeatureValue[JBoolean](RecapFeatures.RETWEET_SEARCHER, features.retweetSearcher)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.REPLY_SEARCHER, features.replySearcher)
-      richDataRecord
-        .setFeatureValue[JBoolean](RecapFeatures.MENTION_SEARCHER, features.mentionSearcher)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.REPLY_OTHER, features.replyOther)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.RETWEET_OTHER, features.retweetOther)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.IS_REPLY, features.isReply)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.IS_RETWEET, features.isRetweet)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.IS_OFFENSIVE, features.isOffensive)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.MATCH_UI_LANG, features.matchesUILang)
-      richDataRecord
-        .setFeatureValue[JBoolean](
-          RecapFeatures.MATCH_SEARCHER_MAIN_LANG,
-          features.matchesSearcherMainLang)
-      richDataRecord.setFeatureValue[JBoolean](
-        RecapFeatures.MATCH_SEARCHER_LANGS,
-        features.matchesSearcherLangs)
-      richDataRecord
-        .setFeatureValue[JDouble](
-          RecapFeatures.BIDIRECTIONAL_FAV_COUNT,
-          features.bidirectionalFavCount)
-      richDataRecord
-        .setFeatureValue[JDouble](
-          RecapFeatures.UNIDIRECTIONAL_FAV_COUNT,
-          features.unidirectionalFavCount)
-      richDataRecord
-        .setFeatureValue[JDouble](
-          RecapFeatures.BIDIRECTIONAL_REPLY_COUNT,
-          features.bidirectionalReplyCount)
-      richDataRecord
-        .setFeatureValue[JDouble](
-          RecapFeatures.UNIDIRECTIONAL_REPLY_COUNT,
-          features.unidirectionalReplyCount)
-      richDataRecord
-        .setFeatureValue[JDouble](
-          RecapFeatures.BIDIRECTIONAL_RETWEET_COUNT,
-          features.bidirectionalRetweetCount)
-      richDataRecord
-        .setFeatureValue[JDouble](
-          RecapFeatures.UNIDIRECTIONAL_RETWEET_COUNT,
-          features.unidirectionalRetweetCount)
-      richDataRecord
-        .setFeatureValue[JDouble](RecapFeatures.CONVERSATIONAL_COUNT, features.conversationCount)
-      richDataRecord.setFeatureValue[JDouble](
-        RecapFeatures.TWEET_COUNT_FROM_USER_IN_SNAPSHOT,
-        features.tweetCountFromUserInSnapshot
-      )
-      richDataRecord
-        .setFeatureValue[JBoolean](
-          RecapFeatures.IS_RETWEETER_PROFILE_EGG,
-          features.isRetweeterProfileEgg)
-      richDataRecord
-        .setFeatureValue[JBoolean](RecapFeatures.IS_RETWEETER_NEW, features.isRetweeterNew)
-      richDataRecord
-        .setFeatureValue[JBoolean](RecapFeatures.IS_RETWEETER_BOT, features.isRetweeterBot)
-      richDataRecord
-        .setFeatureValue[JBoolean](RecapFeatures.IS_RETWEETER_NSFW, features.isRetweeterNSFW)
-      richDataRecord
-        .setFeatureValue[JBoolean](RecapFeatures.IS_RETWEETER_SPAM, features.isRetweeterSpam)
-      richDataRecord
-        .setFeatureValue[JBoolean](
-          RecapFeatures.RETWEET_OF_MUTUAL_FOLLOW,
-          features.retweetOfMutualFollow)
-      richDataRecord
-        .setFeatureValue[JDouble](RecapFeatures.SOURCE_AUTHOR_REP, features.sourceAuthorRep)
-      richDataRecord
-        .setFeatureValue[JBoolean](RecapFeatures.IS_RETWEET_OF_REPLY, features.isRetweetOfReply)
-      richDataRecord.setFeatureValueFromOption(
-        RecapFeatures.RETWEET_DIRECTED_AT_USER_IN_FIRST_DEGREE,
-        features.retweetDirectedAtUserInFirstDegree
-      )
-      richDataRecord
-        .setFeatureValue[JDouble](
-          RecapFeatures.EMBEDS_IMPRESSION_COUNT,
-          features.embedsImpressionCount.toDouble)
-      richDataRecord
-        .setFeatureValue[JDouble](RecapFeatures.EMBEDS_URL_COUNT, features.embedsUrlCount.toDouble)
-      richDataRecord
-        .setFeatureValue[JDouble](RecapFeatures.VIDEO_VIEW_COUNT, features.videoViewCount.toDouble)
-      richDataRecord
-        .setFeatureValue[JDouble](RecapFeatures.REPLY_COUNT, features.replyCount.toDouble)
-      richDataRecord
-        .setFeatureValue[JDouble](RecapFeatures.RETWEET_COUNT, features.retweetCount.toDouble)
-      richDataRecord.setFeatureValue[JDouble](RecapFeatures.FAV_COUNT, features.favCount.toDouble)
-      richDataRecord.setFeatureValue[JDouble](RecapFeatures.BLENDER_SCORE, features.blenderScore)
-      richDataRecord.setFeatureValue[JDouble](RecapFeatures.TEXT_SCORE, features.textScore)
-      richDataRecord
-        .setFeatureValue[JBoolean](RecapFeatures.HAS_VISIBLE_LINK, features.hasVisibleLink)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.HAS_LINK, features.hasLink)
-      richDataRecord.setFeatureValue[JBoolean](RecapFeatures.HAS_TREND, features.hasTrend)
-      richDataRecord.setFeatureValue[JBoolean](
-        RecapFeatures.HAS_MULTIPLE_HASHTAGS_OR_TRENDS,
-        features.hasMultipleHashtagsOrTrends
-      )
-      richDataRecord.setFeatureValueFromOption(
-        RecapFeatures.FAV_COUNT_V2,
-        features.favCountV2.map(_.toDouble))
-      richDataRecord.setFeatureValueFromOption(
-        RecapFeatures.RETWEET_COUNT_V2,
-        features.retweetCountV2.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        RecapFeatures.REPLY_COUNT_V2,
-        features.replyCountV2.map(_.toDouble))
-      richDataRecord.setFeatureValueFromOption(
-        RecapFeatures.MENTIONED_SCREEN_NAMES,
-        features.mentionsList.map(_.toSet.asJava)
-      )
-      val urls = features.urlsList.getOrElse(Seq.empty)
-      richDataRecord.setFeatureValue(
-        RecapFeatures.URL_DOMAINS,
-        urls.toSet.flatMap(UrlExtractorUtil.extractDomain).asJava)
-      richDataRecord.setFeatureValue[JDouble](RecapFeatures.LINK_COUNT, urls.size.toDouble)
-      // shared features
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.WEIGHTED_FAV_COUNT,
-        features.weightedFavoriteCount.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.WEIGHTED_RETWEET_COUNT,
-        features.weightedRetweetCount.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.WEIGHTED_REPLY_COUNT,
-        features.weightedReplyCount.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.WEIGHTED_QUOTE_COUNT,
-        features.weightedQuoteCount.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.EMBEDS_IMPRESSION_COUNT_V2,
-        features.embedsImpressionCountV2.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.EMBEDS_URL_COUNT_V2,
-        features.embedsUrlCountV2.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.DECAYED_FAVORITE_COUNT,
-        features.decayedFavoriteCount.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.DECAYED_RETWEET_COUNT,
-        features.decayedRetweetCount.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.DECAYED_REPLY_COUNT,
-        features.decayedReplyCount.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.DECAYED_QUOTE_COUNT,
-        features.decayedQuoteCount.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.FAKE_FAVORITE_COUNT,
-        features.fakeFavoriteCount.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.FAKE_RETWEET_COUNT,
-        features.fakeRetweetCount.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.FAKE_REPLY_COUNT,
-        features.fakeReplyCount.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.FAKE_QUOTE_COUNT,
-        features.fakeQuoteCount.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.QUOTE_COUNT,
-        features.quoteCount.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValue[JDouble](
-        TimelinesSharedFeatures.EARLYBIRD_SCORE,
-        features.earlybirdScore
-      )
-      // safety features
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.LABEL_ABUSIVE_FLAG,
-        features.labelAbusiveFlag
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.LABEL_ABUSIVE_HI_RCL_FLAG,
-        features.labelAbusiveHiRclFlag
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.LABEL_DUP_CONTENT_FLAG,
-        features.labelDupContentFlag
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.LABEL_NSFW_HI_PRC_FLAG,
-        features.labelNsfwHiPrcFlag
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.LABEL_NSFW_HI_RCL_FLAG,
-        features.labelNsfwHiRclFlag
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.LABEL_SPAM_FLAG,
-        features.labelSpamFlag
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.LABEL_SPAM_HI_RCL_FLAG,
-        features.labelSpamHiRclFlag
-      )
-      // periscope features
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.PERISCOPE_EXISTS,
-        features.periscopeExists
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.PERISCOPE_IS_LIVE,
-        features.periscopeIsLive
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.PERISCOPE_HAS_BEEN_FEATURED,
-        features.periscopeHasBeenFeatured
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.PERISCOPE_IS_CURRENTLY_FEATURED,
-        features.periscopeIsCurrentlyFeatured
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.PERISCOPE_IS_FROM_QUALITY_SOURCE,
-        features.periscopeIsFromQualitySource
-      )
-      // misc features
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.VISIBLE_TOKEN_RATIO,
-        features.visibleTokenRatio.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.HAS_QUOTE,
-        features.hasQuote
-      )
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.IS_COMPOSER_SOURCE_CAMERA,
-        features.isComposerSourceCamera
-      )
-      // health scores
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.PREPORTED_TWEET_SCORE,
-        features.pReportedTweetScore
-      )
-      // media
-      richDataRecord.setFeatureValueFromOption(
-        TimelinesSharedFeatures.CLASSIFICATION_LABELS,
-        features.mediaClassificationInfo.map(_.toMap.asJava.asInstanceOf[JMap[String, JDouble]])
-      )
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/earlybird/InReplyToEarlybirdAdapter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/earlybird/InReplyToEarlybirdAdapter.scala
deleted file mode 100644
index b6a7b0ad3..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/earlybird/InReplyToEarlybirdAdapter.scala
+++ /dev/null
@@ -1,206 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.earlybird
-
-import com.twitter.ml.api.Feature
-import com.twitter.ml.api.FeatureContext
-import com.twitter.ml.api.RichDataRecord
-import com.twitter.ml.api.util.DataRecordConverters.RichDataRecordWrapper
-import com.twitter.search.common.features.{thriftscala => sc}
-import com.twitter.timelines.prediction.common.adapters.TimelinesMutatingAdapterBase
-import com.twitter.timelines.prediction.features.common.InReplyToTweetTimelinesSharedFeatures
-import com.twitter.timelines.prediction.features.recap.InReplyToRecapFeatures
-import java.lang.{Boolean => JBoolean}
-import java.lang.{Double => JDouble}
-
-object InReplyToEarlybirdAdapter
-    extends TimelinesMutatingAdapterBase[Option[sc.ThriftTweetFeatures]] {
-
-  override val getFeatureContext: FeatureContext = new FeatureContext(
-    // TextFeatures
-    InReplyToTweetTimelinesSharedFeatures.WEIGHTED_FAV_COUNT,
-    InReplyToTweetTimelinesSharedFeatures.WEIGHTED_RETWEET_COUNT,
-    InReplyToTweetTimelinesSharedFeatures.WEIGHTED_REPLY_COUNT,
-    InReplyToTweetTimelinesSharedFeatures.WEIGHTED_QUOTE_COUNT,
-    InReplyToTweetTimelinesSharedFeatures.DECAYED_FAVORITE_COUNT,
-    InReplyToTweetTimelinesSharedFeatures.DECAYED_RETWEET_COUNT,
-    InReplyToTweetTimelinesSharedFeatures.DECAYED_REPLY_COUNT,
-    InReplyToTweetTimelinesSharedFeatures.DECAYED_QUOTE_COUNT,
-    InReplyToTweetTimelinesSharedFeatures.QUOTE_COUNT,
-    InReplyToTweetTimelinesSharedFeatures.HAS_QUOTE,
-    InReplyToTweetTimelinesSharedFeatures.EARLYBIRD_SCORE,
-    InReplyToRecapFeatures.PREV_USER_TWEET_ENGAGEMENT,
-    InReplyToRecapFeatures.IS_SENSITIVE,
-    InReplyToRecapFeatures.IS_AUTHOR_NEW,
-    InReplyToRecapFeatures.NUM_MENTIONS,
-    InReplyToRecapFeatures.HAS_MENTION,
-    InReplyToRecapFeatures.HAS_HASHTAG,
-    InReplyToRecapFeatures.IS_AUTHOR_NSFW,
-    InReplyToRecapFeatures.IS_AUTHOR_SPAM,
-    InReplyToRecapFeatures.IS_AUTHOR_BOT,
-    InReplyToRecapFeatures.FROM_MUTUAL_FOLLOW,
-    InReplyToRecapFeatures.USER_REP,
-    InReplyToRecapFeatures.FROM_VERIFIED_ACCOUNT,
-    InReplyToRecapFeatures.HAS_IMAGE,
-    InReplyToRecapFeatures.HAS_NEWS,
-    InReplyToRecapFeatures.HAS_VIDEO,
-    InReplyToRecapFeatures.HAS_VISIBLE_LINK,
-    InReplyToRecapFeatures.IS_OFFENSIVE,
-    InReplyToRecapFeatures.IS_REPLY,
-    InReplyToRecapFeatures.BIDIRECTIONAL_REPLY_COUNT,
-    InReplyToRecapFeatures.UNIDIRECTIONAL_REPLY_COUNT,
-    InReplyToRecapFeatures.BIDIRECTIONAL_RETWEET_COUNT,
-    InReplyToRecapFeatures.UNIDIRECTIONAL_RETWEET_COUNT,
-    InReplyToRecapFeatures.BIDIRECTIONAL_FAV_COUNT,
-    InReplyToRecapFeatures.UNIDIRECTIONAL_FAV_COUNT,
-    InReplyToRecapFeatures.CONVERSATIONAL_COUNT,
-    InReplyToRecapFeatures.REPLY_COUNT,
-    InReplyToRecapFeatures.RETWEET_COUNT,
-    InReplyToRecapFeatures.FAV_COUNT,
-    InReplyToRecapFeatures.TEXT_SCORE,
-    InReplyToRecapFeatures.FAV_COUNT_V2,
-    InReplyToRecapFeatures.RETWEET_COUNT_V2,
-    InReplyToRecapFeatures.REPLY_COUNT_V2)
-
-  override val commonFeatures: Set[Feature[_]] = Set.empty
-
-  override def setFeatures(
-    ebFeatures: Option[sc.ThriftTweetFeatures],
-    richDataRecord: RichDataRecord
-  ): Unit = {
-    if (ebFeatures.nonEmpty) {
-      val features = ebFeatures.get
-
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToTweetTimelinesSharedFeatures.WEIGHTED_FAV_COUNT,
-        features.weightedFavoriteCount.map(_.toDouble)
-      )
-
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToTweetTimelinesSharedFeatures.WEIGHTED_RETWEET_COUNT,
-        features.weightedRetweetCount.map(_.toDouble)
-      )
-
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToTweetTimelinesSharedFeatures.WEIGHTED_REPLY_COUNT,
-        features.weightedReplyCount.map(_.toDouble)
-      )
-
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToTweetTimelinesSharedFeatures.WEIGHTED_QUOTE_COUNT,
-        features.weightedQuoteCount.map(_.toDouble)
-      )
-
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToTweetTimelinesSharedFeatures.DECAYED_FAVORITE_COUNT,
-        features.decayedFavoriteCount.map(_.toDouble)
-      )
-
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToTweetTimelinesSharedFeatures.DECAYED_RETWEET_COUNT,
-        features.decayedRetweetCount.map(_.toDouble)
-      )
-
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToTweetTimelinesSharedFeatures.DECAYED_REPLY_COUNT,
-        features.decayedReplyCount.map(_.toDouble)
-      )
-
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToTweetTimelinesSharedFeatures.DECAYED_QUOTE_COUNT,
-        features.decayedQuoteCount.map(_.toDouble)
-      )
-
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToTweetTimelinesSharedFeatures.QUOTE_COUNT,
-        features.quoteCount.map(_.toDouble)
-      )
-
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToTweetTimelinesSharedFeatures.HAS_QUOTE,
-        features.hasQuote
-      )
-
-      if (features.earlybirdScore > 0)
-        richDataRecord.setFeatureValue[JDouble](
-          InReplyToTweetTimelinesSharedFeatures.EARLYBIRD_SCORE,
-          features.earlybirdScore
-        )
-
-      richDataRecord.setFeatureValue[JDouble](
-        InReplyToRecapFeatures.PREV_USER_TWEET_ENGAGEMENT,
-        features.prevUserTweetEngagement.toDouble
-      )
-
-      richDataRecord
-        .setFeatureValue[JBoolean](InReplyToRecapFeatures.IS_SENSITIVE, features.isSensitiveContent)
-      richDataRecord
-        .setFeatureValue[JBoolean](InReplyToRecapFeatures.IS_AUTHOR_NEW, features.isAuthorNew)
-      richDataRecord.setFeatureValue[JDouble](
-        InReplyToRecapFeatures.NUM_MENTIONS,
-        features.numMentions.toDouble)
-      richDataRecord
-        .setFeatureValue[JBoolean](InReplyToRecapFeatures.HAS_MENTION, (features.numMentions > 0))
-      richDataRecord
-        .setFeatureValue[JBoolean](InReplyToRecapFeatures.HAS_HASHTAG, (features.numHashtags > 0))
-      richDataRecord
-        .setFeatureValue[JBoolean](InReplyToRecapFeatures.IS_AUTHOR_NSFW, features.isAuthorNSFW)
-      richDataRecord
-        .setFeatureValue[JBoolean](InReplyToRecapFeatures.IS_AUTHOR_SPAM, features.isAuthorSpam)
-      richDataRecord
-        .setFeatureValue[JBoolean](InReplyToRecapFeatures.IS_AUTHOR_BOT, features.isAuthorBot)
-      richDataRecord.setFeatureValue[JBoolean](
-        InReplyToRecapFeatures.FROM_MUTUAL_FOLLOW,
-        features.fromMutualFollow)
-      richDataRecord.setFeatureValue[JDouble](InReplyToRecapFeatures.USER_REP, features.userRep)
-      richDataRecord.setFeatureValue[JBoolean](
-        InReplyToRecapFeatures.FROM_VERIFIED_ACCOUNT,
-        features.fromVerifiedAccount)
-      richDataRecord.setFeatureValue[JBoolean](InReplyToRecapFeatures.HAS_IMAGE, features.hasImage)
-      richDataRecord.setFeatureValue[JBoolean](InReplyToRecapFeatures.HAS_NEWS, features.hasNews)
-      richDataRecord.setFeatureValue[JBoolean](InReplyToRecapFeatures.HAS_VIDEO, features.hasVideo)
-      richDataRecord
-        .setFeatureValue[JBoolean](InReplyToRecapFeatures.HAS_VISIBLE_LINK, features.hasVisibleLink)
-      richDataRecord
-        .setFeatureValue[JBoolean](InReplyToRecapFeatures.IS_OFFENSIVE, features.isOffensive)
-      richDataRecord.setFeatureValue[JBoolean](InReplyToRecapFeatures.IS_REPLY, features.isReply)
-      richDataRecord.setFeatureValue[JDouble](
-        InReplyToRecapFeatures.BIDIRECTIONAL_REPLY_COUNT,
-        features.bidirectionalReplyCount)
-      richDataRecord.setFeatureValue[JDouble](
-        InReplyToRecapFeatures.UNIDIRECTIONAL_REPLY_COUNT,
-        features.unidirectionalReplyCount)
-      richDataRecord.setFeatureValue[JDouble](
-        InReplyToRecapFeatures.BIDIRECTIONAL_RETWEET_COUNT,
-        features.bidirectionalRetweetCount)
-      richDataRecord.setFeatureValue[JDouble](
-        InReplyToRecapFeatures.UNIDIRECTIONAL_RETWEET_COUNT,
-        features.unidirectionalRetweetCount)
-      richDataRecord.setFeatureValue[JDouble](
-        InReplyToRecapFeatures.BIDIRECTIONAL_FAV_COUNT,
-        features.bidirectionalFavCount)
-      richDataRecord.setFeatureValue[JDouble](
-        InReplyToRecapFeatures.UNIDIRECTIONAL_FAV_COUNT,
-        features.unidirectionalFavCount)
-      richDataRecord.setFeatureValue[JDouble](
-        InReplyToRecapFeatures.CONVERSATIONAL_COUNT,
-        features.conversationCount)
-      richDataRecord
-        .setFeatureValue[JDouble](InReplyToRecapFeatures.REPLY_COUNT, features.replyCount.toDouble)
-      richDataRecord.setFeatureValue[JDouble](
-        InReplyToRecapFeatures.RETWEET_COUNT,
-        features.retweetCount.toDouble)
-      richDataRecord
-        .setFeatureValue[JDouble](InReplyToRecapFeatures.FAV_COUNT, features.favCount.toDouble)
-      richDataRecord.setFeatureValue[JDouble](InReplyToRecapFeatures.TEXT_SCORE, features.textScore)
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToRecapFeatures.FAV_COUNT_V2,
-        features.favCountV2.map(_.toDouble))
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToRecapFeatures.RETWEET_COUNT_V2,
-        features.retweetCountV2.map(_.toDouble)
-      )
-      richDataRecord.setFeatureValueFromOption(
-        InReplyToRecapFeatures.REPLY_COUNT_V2,
-        features.replyCountV2.map(_.toDouble))
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/inferred_topic/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/inferred_topic/BUILD.bazel
deleted file mode 100644
index acf19eabb..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/inferred_topic/BUILD.bazel
+++ /dev/null
@@ -1,13 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "src/java/com/twitter/ml/api:api-base",
-        "src/scala/com/twitter/ml/api/util",
-        "src/scala/com/twitter/timelines/prediction/common/adapters:base",
-        "src/scala/com/twitter/timelines/prediction/features/common",
-        "src/thrift/com/twitter/ml/api:data-java",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/inferred_topic/InferredTopicAdapter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/inferred_topic/InferredTopicAdapter.scala
deleted file mode 100644
index 1439cc2ad..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/inferred_topic/InferredTopicAdapter.scala
+++ /dev/null
@@ -1,25 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.inferred_topic
-
-import com.twitter.ml.api.Feature
-import com.twitter.ml.api.FeatureContext
-import com.twitter.ml.api.RichDataRecord
-import com.twitter.timelines.prediction.common.adapters.TimelinesMutatingAdapterBase
-import com.twitter.timelines.prediction.features.common.TimelinesSharedFeatures
-import scala.collection.JavaConverters._
-
-object InferredTopicAdapter extends TimelinesMutatingAdapterBase[Map[Long, Double]] {
-
-  override val getFeatureContext: FeatureContext = new FeatureContext(
-    TimelinesSharedFeatures.INFERRED_TOPIC_IDS)
-
-  override val commonFeatures: Set[Feature[_]] = Set.empty
-
-  override def setFeatures(
-    inferredTopicFeatures: Map[Long, Double],
-    richDataRecord: RichDataRecord
-  ): Unit = {
-    richDataRecord.setFeatureValue(
-      TimelinesSharedFeatures.INFERRED_TOPIC_IDS,
-      inferredTopicFeatures.keys.map(_.toString).toSet.asJava)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/non_ml_features/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/non_ml_features/BUILD.bazel
deleted file mode 100644
index d1a7281c5..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/non_ml_features/BUILD.bazel
+++ /dev/null
@@ -1,15 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "src/java/com/twitter/ml/api:api-base",
-        "src/java/com/twitter/ml/api/constant",
-        "src/scala/com/twitter/ml/api/util",
-        "src/scala/com/twitter/timelines/prediction/common/adapters:base",
-        "src/scala/com/twitter/timelines/prediction/features/common",
-        "src/thrift/com/twitter/ml/api:data-java",
-        "src/thrift/com/twitter/timelines/author_features:thrift-java",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/non_ml_features/NonMLCandidateFeaturesAdapter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/non_ml_features/NonMLCandidateFeaturesAdapter.scala
deleted file mode 100644
index 6c4b79eee..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/non_ml_features/NonMLCandidateFeaturesAdapter.scala
+++ /dev/null
@@ -1,44 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.non_ml_features
-
-import com.twitter.ml.api.constant.SharedFeatures
-import com.twitter.ml.api.Feature
-import com.twitter.ml.api.FeatureContext
-import com.twitter.ml.api.RichDataRecord
-import com.twitter.timelines.prediction.common.adapters.TimelinesMutatingAdapterBase
-import com.twitter.timelines.prediction.features.common.TimelinesSharedFeatures
-import java.lang.{Long => JLong}
-
-case class NonMLCandidateFeatures(
-  tweetId: Long,
-  sourceTweetId: Option[Long],
-  originalAuthorId: Option[Long],
-)
-
-/**
- * define non ml features adapter to create a data record which includes many non ml features
- * e.g. predictionRequestId, userId, tweetId to be used as joined key in batch pipeline.
- */
-object NonMLCandidateFeaturesAdapter extends TimelinesMutatingAdapterBase[NonMLCandidateFeatures] {
-
-  private val featureContext = new FeatureContext(
-    SharedFeatures.TWEET_ID,
-    // For Secondary Engagement data generation
-    TimelinesSharedFeatures.SOURCE_TWEET_ID,
-    TimelinesSharedFeatures.ORIGINAL_AUTHOR_ID,
-  )
-
-  override def getFeatureContext: FeatureContext = featureContext
-
-  override val commonFeatures: Set[Feature[_]] = Set.empty
-
-  override def setFeatures(
-    nonMLCandidateFeatures: NonMLCandidateFeatures,
-    richDataRecord: RichDataRecord
-  ): Unit = {
-    richDataRecord.setFeatureValue[JLong](SharedFeatures.TWEET_ID, nonMLCandidateFeatures.tweetId)
-    nonMLCandidateFeatures.sourceTweetId.foreach(
-      richDataRecord.setFeatureValue[JLong](TimelinesSharedFeatures.SOURCE_TWEET_ID, _))
-    nonMLCandidateFeatures.originalAuthorId.foreach(
-      richDataRecord.setFeatureValue[JLong](TimelinesSharedFeatures.ORIGINAL_AUTHOR_ID, _))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/non_ml_features/NonMLCommonFeaturesAdapter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/non_ml_features/NonMLCommonFeaturesAdapter.scala
deleted file mode 100644
index a2777538c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/non_ml_features/NonMLCommonFeaturesAdapter.scala
+++ /dev/null
@@ -1,48 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.non_ml_features
-
-import com.twitter.ml.api.constant.SharedFeatures
-import com.twitter.ml.api.Feature
-import com.twitter.ml.api.FeatureContext
-import com.twitter.ml.api.RichDataRecord
-import com.twitter.timelines.prediction.common.adapters.TimelinesMutatingAdapterBase
-import com.twitter.timelines.prediction.features.common.TimelinesSharedFeatures
-import java.lang.{Long => JLong}
-
-case class NonMLCommonFeatures(
-  userId: Long,
-  predictionRequestId: Option[Long],
-  servedTimestamp: Long,
-)
-
-/**
- * define non ml features adapter to create a data record which includes many non ml features
- * e.g. predictionRequestId, userId, tweetId to be used as joined key in batch pipeline.
- */
-object NonMLCommonFeaturesAdapter extends TimelinesMutatingAdapterBase[NonMLCommonFeatures] {
-
-  private val featureContext = new FeatureContext(
-    SharedFeatures.USER_ID,
-    TimelinesSharedFeatures.PREDICTION_REQUEST_ID,
-    TimelinesSharedFeatures.SERVED_TIMESTAMP,
-  )
-
-  override def getFeatureContext: FeatureContext = featureContext
-
-  override val commonFeatures: Set[Feature[_]] = Set(
-    SharedFeatures.USER_ID,
-    TimelinesSharedFeatures.PREDICTION_REQUEST_ID,
-    TimelinesSharedFeatures.SERVED_TIMESTAMP,
-  )
-
-  override def setFeatures(
-    nonMLCommonFeatures: NonMLCommonFeatures,
-    richDataRecord: RichDataRecord
-  ): Unit = {
-    richDataRecord.setFeatureValue[JLong](SharedFeatures.USER_ID, nonMLCommonFeatures.userId)
-    nonMLCommonFeatures.predictionRequestId.foreach(
-      richDataRecord.setFeatureValue[JLong](TimelinesSharedFeatures.PREDICTION_REQUEST_ID, _))
-    richDataRecord.setFeatureValue[JLong](
-      TimelinesSharedFeatures.SERVED_TIMESTAMP,
-      nonMLCommonFeatures.servedTimestamp)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/offline_aggregates/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/offline_aggregates/BUILD.bazel
deleted file mode 100644
index bfff86d3f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/offline_aggregates/BUILD.bazel
+++ /dev/null
@@ -1,13 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "src/java/com/twitter/ml/api:api-base",
-        "src/scala/com/twitter/timelines/prediction/common/adapters:base",
-        "src/thrift/com/twitter/ml/api:data-java",
-        "timelines/data_processing/ml_util/aggregation_framework/conversion:for-timelines",
-        "timelineservice/common/src/main/scala/com/twitter/timelineservice/model",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/offline_aggregates/PassThroughAdapter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/offline_aggregates/PassThroughAdapter.scala
deleted file mode 100644
index dce0a81db..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/offline_aggregates/PassThroughAdapter.scala
+++ /dev/null
@@ -1,12 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.offline_aggregates
-
-import com.twitter.ml.api.DataRecord
-import com.twitter.ml.api.IRecordOneToOneAdapter
-
-object PassThroughAdapter extends IRecordOneToOneAdapter[Seq[DataRecord]] {
-  override def adaptToDataRecord(record: Seq[DataRecord]): DataRecord =
-    record.headOption.getOrElse(new DataRecord)
-
-  // This is not necessary and should not be used.
-  override def getFeatureContext = ???
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/offline_aggregates/SparseAggregatesToDenseAdapter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/offline_aggregates/SparseAggregatesToDenseAdapter.scala
deleted file mode 100644
index 4c54f78d8..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/offline_aggregates/SparseAggregatesToDenseAdapter.scala
+++ /dev/null
@@ -1,17 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.offline_aggregates
-
-import com.twitter.ml.api.DataRecord
-import com.twitter.ml.api.FeatureContext
-import com.twitter.ml.api.RichDataRecord
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.conversion.CombineCountsPolicy
-import com.twitter.timelines.prediction.common.adapters.TimelinesIRecordAdapter
-
-class SparseAggregatesToDenseAdapter(policy: CombineCountsPolicy)
-    extends TimelinesIRecordAdapter[Seq[DataRecord]] {
-
-  override def setFeatures(input: Seq[DataRecord], mutableDataRecord: RichDataRecord): Unit =
-    policy.defaultMergeRecord(mutableDataRecord.getRecord, input.toList)
-
-  override val getFeatureContext: FeatureContext =
-    new FeatureContext(policy.outputFeaturesPostMerge.toSeq: _*)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/twhin_embeddings/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/twhin_embeddings/BUILD.bazel
deleted file mode 100644
index c32c29ce5..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/twhin_embeddings/BUILD.bazel
+++ /dev/null
@@ -1,16 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "src/java/com/twitter/ml/api:api-base",
-        "src/scala/com/twitter/ml/api:api-base",
-        "src/scala/com/twitter/ml/api/util",
-        "src/scala/com/twitter/timelines/prediction/common/adapters:base",
-        "src/thrift/com/twitter/ml/api:data-java",
-        "src/thrift/com/twitter/ml/api:data-scala",
-        "src/thrift/com/twitter/ml/api:embedding-java",
-        "src/thrift/com/twitter/ml/api:embedding-scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/twhin_embeddings/TwhinEmbeddingsAdapter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/twhin_embeddings/TwhinEmbeddingsAdapter.scala
deleted file mode 100644
index c2830e462..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/twhin_embeddings/TwhinEmbeddingsAdapter.scala
+++ /dev/null
@@ -1,68 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.twhin_embeddings
-
-import com.twitter.ml.api.DataType
-import com.twitter.ml.api.Feature
-import com.twitter.ml.api.FeatureContext
-import com.twitter.ml.api.RichDataRecord
-import com.twitter.ml.api.util.ScalaToJavaDataRecordConversions
-import com.twitter.ml.api.{thriftscala => ml}
-import com.twitter.timelines.prediction.common.adapters.TimelinesMutatingAdapterBase
-
-sealed trait TwhinEmbeddingsAdapter extends TimelinesMutatingAdapterBase[Option[ml.FloatTensor]] {
-  def twhinEmbeddingsFeature: Feature.Tensor
-
-  override def getFeatureContext: FeatureContext = new FeatureContext(
-    twhinEmbeddingsFeature
-  )
-
-  override def setFeatures(
-    embedding: Option[ml.FloatTensor],
-    richDataRecord: RichDataRecord
-  ): Unit = {
-    embedding.foreach { floatTensor =>
-      richDataRecord.setFeatureValue(
-        twhinEmbeddingsFeature,
-        ScalaToJavaDataRecordConversions.scalaTensor2Java(
-          ml.GeneralTensor
-            .FloatTensor(floatTensor)))
-    }
-  }
-}
-
-object TwhinEmbeddingsFeatures {
-  val TwhinAuthorFollowEmbeddingsFeature: Feature.Tensor = new Feature.Tensor(
-    "original_author.twhin.tw_hi_n.author_follow_as_float_tensor",
-    DataType.FLOAT
-  )
-
-  val TwhinUserEngagementEmbeddingsFeature: Feature.Tensor = new Feature.Tensor(
-    "user.twhin.tw_hi_n.user_engagement_as_float_tensor",
-    DataType.FLOAT
-  )
-
-  val TwhinUserFollowEmbeddingsFeature: Feature.Tensor = new Feature.Tensor(
-    "user.twhin.tw_hi_n.user_follow_as_float_tensor",
-    DataType.FLOAT
-  )
-}
-
-object TwhinAuthorFollowEmbeddingsAdapter extends TwhinEmbeddingsAdapter {
-  override val twhinEmbeddingsFeature: Feature.Tensor =
-    TwhinEmbeddingsFeatures.TwhinAuthorFollowEmbeddingsFeature
-
-  override val commonFeatures: Set[Feature[_]] = Set.empty
-}
-
-object TwhinUserEngagementEmbeddingsAdapter extends TwhinEmbeddingsAdapter {
-  override val twhinEmbeddingsFeature: Feature.Tensor =
-    TwhinEmbeddingsFeatures.TwhinUserEngagementEmbeddingsFeature
-
-  override val commonFeatures: Set[Feature[_]] = Set(twhinEmbeddingsFeature)
-}
-
-object TwhinUserFollowEmbeddingsAdapter extends TwhinEmbeddingsAdapter {
-  override val twhinEmbeddingsFeature: Feature.Tensor =
-    TwhinEmbeddingsFeatures.TwhinUserFollowEmbeddingsFeature
-
-  override val commonFeatures: Set[Feature[_]] = Set(twhinEmbeddingsFeature)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/AggregateFeatureInfo.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/AggregateFeatureInfo.scala
deleted file mode 100644
index 00dee1209..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/AggregateFeatureInfo.scala
+++ /dev/null
@@ -1,37 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates
-
-import com.twitter.ml.api.FeatureContext
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.AggregateGroup
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.AggregateType.AggregateType
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.TypedAggregateGroup
-import scala.jdk.CollectionConverters.asJavaIterableConverter
-
-// A helper class deriving aggregate feature info from the given configuration parameters.
-class AggregateFeatureInfo(
-  val aggregateGroups: Set[AggregateGroup],
-  val aggregateType: AggregateType) {
-
-  private val typedAggregateGroups = aggregateGroups.flatMap(_.buildTypedAggregateGroups()).toList
-
-  val featureContext: FeatureContext =
-    new FeatureContext(
-      (typedAggregateGroups.flatMap(_.allOutputFeatures) ++
-        typedAggregateGroups.flatMap(_.allOutputKeys) ++
-        Seq(TypedAggregateGroup.timestampFeature)).asJava)
-
-  val feature: BaseAggregateRootFeature =
-    AggregateFeatureInfo.pickFeature(aggregateType)
-}
-
-object AggregateFeatureInfo {
-  val features: Set[BaseAggregateRootFeature] =
-    Set(PartAAggregateRootFeature, PartBAggregateRootFeature)
-
-  def pickFeature(aggregateType: AggregateType): BaseAggregateRootFeature = {
-    val filtered = features.filter(_.aggregateTypes.contains(aggregateType))
-    require(
-      filtered.size == 1,
-      "requested AggregateType must be backed by exactly one physical store.")
-    filtered.head
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/AggregateFeaturesToDecodeWithMetadata.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/AggregateFeaturesToDecodeWithMetadata.scala
deleted file mode 100644
index 5fb599240..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/AggregateFeaturesToDecodeWithMetadata.scala
+++ /dev/null
@@ -1,68 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates
-
-import com.twitter.finagle.stats.NullStatsReceiver
-import com.twitter.timelinemixer.injection.repository.uss.VersionedAggregateFeaturesDecoder
-import com.twitter.ml.api.DataRecord
-import com.twitter.timelines.aggregate_interactions.thriftjava.UserAggregateInteractions
-import com.twitter.timelines.aggregate_interactions.v17.thriftjava.{
-  UserAggregateInteractions => V17UserAggregateInteractions
-}
-import com.twitter.timelines.aggregate_interactions.v1.thriftjava.{
-  UserAggregateInteractions => V1UserAggregateInteractions
-}
-import com.twitter.timelines.suggests.common.dense_data_record.thriftjava.DenseCompactDataRecord
-import com.twitter.timelines.suggests.common.dense_data_record.thriftscala.DenseFeatureMetadata
-import java.lang.{Long => JLong}
-import java.util.Collections
-import java.util.{Map => JMap}
-
-private[offline_aggregates] case class AggregateFeaturesToDecodeWithMetadata(
-  metadataOpt: Option[DenseFeatureMetadata],
-  aggregates: UserAggregateInteractions) {
-  def toDataRecord(dr: DenseCompactDataRecord): DataRecord =
-    VersionedAggregateFeaturesDecoder.fromJDenseCompact(
-      metadataOpt,
-      dr.versionId,
-      NullStatsReceiver,
-      s"V${dr.versionId}"
-    )(dr)
-
-  def userAggregatesOpt: Option[DenseCompactDataRecord] = {
-    aggregates.getSetField match {
-      case UserAggregateInteractions._Fields.V17 =>
-        Option(aggregates.getV17.user_aggregates)
-      case _ =>
-        None
-    }
-  }
-
-  def userAuthorAggregates = extract(_.user_author_aggregates)
-  def userEngagerAggregates = extract(_.user_engager_aggregates)
-  def userMentionAggregates = extract(_.user_mention_aggregates)
-  def userOriginalAuthorAggregates = extract(_.user_original_author_aggregates)
-  def userRequestDowAggregates = extract(_.user_request_dow_aggregates)
-  def userRequestHourAggregates = extract(_.user_request_hour_aggregates)
-  def rectweetUserSimclustersTweetAggregates = extract(_.rectweet_user_simclusters_tweet_aggregates)
-  def userTwitterListAggregates = extract(_.user_list_aggregates)
-  def userTopicAggregates = extract(_.user_topic_aggregates)
-  def userInferredTopicAggregates = extract(_.user_inferred_topic_aggregates)
-  def userMediaUnderstandingAnnotationAggregates = extract(
-    _.user_media_understanding_annotation_aggregates)
-
-  private def extract[T](
-    v17Fn: V17UserAggregateInteractions => JMap[JLong, DenseCompactDataRecord]
-  ): JMap[JLong, DenseCompactDataRecord] = {
-    aggregates.getSetField match {
-      case UserAggregateInteractions._Fields.V17 =>
-        v17Fn(aggregates.getV17)
-      case _ =>
-        Collections.emptyMap()
-    }
-  }
-}
-
-object AggregateFeaturesToDecodeWithMetadata {
-  val empty = new AggregateFeaturesToDecodeWithMetadata(
-    None,
-    UserAggregateInteractions.v1(new V1UserAggregateInteractions()))
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/BUILD.bazel
deleted file mode 100644
index 10f696409..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/BUILD.bazel
+++ /dev/null
@@ -1,40 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "finatra/inject/inject-core/src/main/scala",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/offline_aggregates",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/feature/datarecord",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/feature/featuremap/datarecord",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/feature_hydrator",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/util",
-        "servo/repo/src/main/scala",
-        "src/java/com/twitter/ml/api:api-base",
-        "src/scala/com/twitter/timelines/prediction/adapters/request_context",
-        "src/scala/com/twitter/timelines/prediction/common/adapters:base",
-        "src/scala/com/twitter/timelines/prediction/common/aggregates",
-        "src/scala/com/twitter/timelines/util",
-        "src/thrift/com/twitter/ml/api:data-java",
-        "src/thrift/com/twitter/timelines/suggests/common:data_record_metadata-scala",
-        "src/thrift/com/twitter/timelines/suggests/common:dense_data_record-scala",
-        "src/thrift/com/twitter/tweetypie:service-scala",
-        "src/thrift/com/twitter/tweetypie:tweet-scala",
-        "src/thrift/com/twitter/user_session_store:thrift-java",
-        "stitch/stitch-core",
-        "timelinemixer/server/src/main/scala/com/twitter/timelinemixer/injection/repository/uss:versioned-aggregate-features-decoder",
-        "timelines/data_processing/jobs/timeline_ranking_user_features:mini",
-        "timelines/data_processing/ml_util/aggregation_framework:common_types",
-        "timelines/data_processing/ml_util/aggregation_framework/conversion:for-timelines",
-        "timelineservice/common/src/main/scala/com/twitter/timelineservice/model",
-        "user_session_store/src/main/scala/com/twitter/user_session_store",
-        "util/util-core",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/BaseAggregateQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/BaseAggregateQueryFeatureHydrator.scala
deleted file mode 100644
index c81ed5054..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/BaseAggregateQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,76 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates
-
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.servo.repository.Repository
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.aggregate_interactions.thriftjava.UserAggregateInteractions
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.AggregateType.AggregateType
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.StoreConfig
-import com.twitter.timelines.suggests.common.dense_data_record.thriftscala.DenseFeatureMetadata
-import com.twitter.user_session_store.thriftjava.UserSession
-import com.twitter.util.Future
-
-abstract class BaseAggregateQueryFeatureHydrator(
-  featureRepository: Repository[Long, Option[UserSession]],
-  metadataRepository: Repository[Int, Option[DenseFeatureMetadata]],
-  feature: Feature[PipelineQuery, Option[AggregateFeaturesToDecodeWithMetadata]])
-    extends QueryFeatureHydrator[PipelineQuery] {
-
-  override def hydrate(query: PipelineQuery): Stitch[FeatureMap] = {
-    val viewerId = query.getRequiredUserId
-
-    Stitch.callFuture(
-      featureRepository(viewerId)
-        .flatMap { userSession: Option[UserSession] =>
-          val featuresWithMetadata: Option[Future[AggregateFeaturesToDecodeWithMetadata]] =
-            userSession
-              .flatMap(decodeUserSession(_))
-
-          featuresWithMetadata
-            .map { fu: Future[AggregateFeaturesToDecodeWithMetadata] => fu.map(Some(_)) }
-            .getOrElse(Future.None)
-            .map { value =>
-              FeatureMapBuilder()
-                .add(feature, value)
-                .build()
-            }
-        }
-    )
-  }
-
-  private def decodeUserSession(
-    session: UserSession
-  ): Option[Future[AggregateFeaturesToDecodeWithMetadata]] = {
-    Option(session.user_aggregate_interactions).flatMap { aggregates =>
-      aggregates.getSetField match {
-        case UserAggregateInteractions._Fields.V17 =>
-          Some(
-            getAggregateFeaturesWithMetadata(
-              aggregates.getV17.user_aggregates.versionId,
-              UserAggregateInteractions.v17(aggregates.getV17))
-          )
-        case _ =>
-          None
-      }
-    }
-  }
-
-  private def getAggregateFeaturesWithMetadata(
-    versionId: Int,
-    userAggregateInteractions: UserAggregateInteractions,
-  ): Future[AggregateFeaturesToDecodeWithMetadata] = {
-    metadataRepository(versionId)
-      .map(AggregateFeaturesToDecodeWithMetadata(_, userAggregateInteractions))
-  }
-}
-
-trait BaseAggregateRootFeature
-    extends Feature[PipelineQuery, Option[AggregateFeaturesToDecodeWithMetadata]] {
-  def aggregateStores: Set[StoreConfig[_]]
-
-  lazy val aggregateTypes: Set[AggregateType] = aggregateStores.map(_.aggregateType)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/BaseEdgeAggregateFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/BaseEdgeAggregateFeatureHydrator.scala
deleted file mode 100644
index 43cfa967b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/BaseEdgeAggregateFeatureHydrator.scala
+++ /dev/null
@@ -1,93 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates
-
-import com.twitter.ml.api.DataRecord
-import com.twitter.ml.api.FeatureContext
-import com.twitter.ml.api.IRecordOneToOneAdapter
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.AggregateGroup
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.AggregateType.AggregateType
-import com.twitter.timelines.suggests.common.dense_data_record.thriftjava.DenseCompactDataRecord
-import java.lang.{Long => JLong}
-import java.util.{Map => JMap}
-
-abstract case class BaseEdgeAggregateFeature(
-  aggregateGroups: Set[AggregateGroup],
-  aggregateType: AggregateType,
-  extractMapFn: AggregateFeaturesToDecodeWithMetadata => JMap[JLong, DenseCompactDataRecord],
-  adapter: IRecordOneToOneAdapter[Seq[DataRecord]],
-  getSecondaryKeysFn: CandidateWithFeatures[TweetCandidate] => Seq[Long])
-    extends DataRecordInAFeature[PipelineQuery]
-    with FeatureWithDefaultOnFailure[PipelineQuery, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord
-
-  private val rootFeatureInfo = new AggregateFeatureInfo(aggregateGroups, aggregateType)
-  val featureContext: FeatureContext = rootFeatureInfo.featureContext
-  val rootFeature: BaseAggregateRootFeature = rootFeatureInfo.feature
-}
-
-trait BaseEdgeAggregateFeatureHydrator
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate] {
-
-  def aggregateFeatures: Set[BaseEdgeAggregateFeature]
-
-  override def features = aggregateFeatures.asInstanceOf[Set[Feature[_, _]]]
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offload {
-    val featureMapBuilders: Seq[FeatureMapBuilder] =
-      for (_ <- candidates) yield FeatureMapBuilder()
-
-    aggregateFeatures.foreach { feature =>
-      val featureValues = hydrateAggregateFeature(query, candidates, feature)
-      (featureMapBuilders zip featureValues).foreach {
-        case (featureMapBuilder, featureValue) => featureMapBuilder.add(feature, featureValue)
-      }
-    }
-
-    featureMapBuilders.map(_.build())
-  }
-
-  private def hydrateAggregateFeature(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]],
-    feature: BaseEdgeAggregateFeature
-  ): Seq[DataRecord] = {
-    val rootFeature = feature.rootFeature
-    val extractMapFn = feature.extractMapFn
-    val featureContext = feature.featureContext
-    val secondaryIds: Seq[Seq[Long]] = candidates.map(feature.getSecondaryKeysFn)
-
-    val featuresToDecodeWithMetadata = query.features
-      .flatMap(_.getOrElse(rootFeature, None))
-      .getOrElse(AggregateFeaturesToDecodeWithMetadata.empty)
-
-    // Decode the DenseCompactDataRecords into DataRecords for each required secondary id.
-    val decoded: Map[Long, DataRecord] = Utils.selectAndTransform(
-      secondaryIds.flatten.distinct,
-      featuresToDecodeWithMetadata.toDataRecord,
-      extractMapFn(featuresToDecodeWithMetadata)
-    )
-
-    // Remove unnecessary features in-place. This is safe because the underlying DataRecords
-    // are unique and have just been generated in the previous step.
-    decoded.values.foreach(Utils.filterDataRecord(_, featureContext))
-
-    // Put features into the FeatureMapBuilders
-    secondaryIds.map { ids =>
-      val dataRecords = ids.flatMap(decoded.get)
-      feature.adapter.adaptToDataRecord(dataRecords)
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/EdgeAggregateFeatures.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/EdgeAggregateFeatures.scala
deleted file mode 100644
index f769bb980..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/EdgeAggregateFeatures.scala
+++ /dev/null
@@ -1,118 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates
-
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.offline_aggregates.PassThroughAdapter
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.offline_aggregates.SparseAggregatesToDenseAdapter
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.MentionScreenNameFeature
-import com.twitter.home_mixer.model.HomeFeatures.TopicIdSocialContextFeature
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.TSPInferredTopicFeature
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.AggregateType
-import com.twitter.timelines.prediction.common.aggregates.TimelinesAggregationConfig
-import com.twitter.timelines.prediction.common.aggregates.TimelinesAggregationConfig.CombineCountPolicies
-
-object EdgeAggregateFeatures {
-
-  object UserAuthorAggregateFeature
-      extends BaseEdgeAggregateFeature(
-        aggregateGroups = TimelinesAggregationConfig.userAuthorAggregatesV2 ++ Set(
-          TimelinesAggregationConfig.userAuthorAggregatesV5,
-          TimelinesAggregationConfig.tweetSourceUserAuthorAggregatesV1,
-          TimelinesAggregationConfig.twitterWideUserAuthorAggregates
-        ),
-        aggregateType = AggregateType.UserAuthor,
-        extractMapFn = _.userAuthorAggregates,
-        adapter = PassThroughAdapter,
-        getSecondaryKeysFn = _.features.getOrElse(AuthorIdFeature, None).toSeq
-      )
-
-  object UserOriginalAuthorAggregateFeature
-      extends BaseEdgeAggregateFeature(
-        aggregateGroups = Set(TimelinesAggregationConfig.userOriginalAuthorAggregatesV1),
-        aggregateType = AggregateType.UserOriginalAuthor,
-        extractMapFn = _.userOriginalAuthorAggregates,
-        adapter = PassThroughAdapter,
-        getSecondaryKeysFn = candidate =>
-          CandidatesUtil.getOriginalAuthorId(candidate.features).toSeq
-      )
-
-  object UserTopicAggregateFeature
-      extends BaseEdgeAggregateFeature(
-        aggregateGroups = Set(
-          TimelinesAggregationConfig.userTopicAggregates,
-          TimelinesAggregationConfig.userTopicAggregatesV2,
-        ),
-        aggregateType = AggregateType.UserTopic,
-        extractMapFn = _.userTopicAggregates,
-        adapter = PassThroughAdapter,
-        getSecondaryKeysFn = candidate =>
-          candidate.features.getOrElse(TopicIdSocialContextFeature, None).toSeq
-      )
-
-  object UserMentionAggregateFeature
-      extends BaseEdgeAggregateFeature(
-        aggregateGroups = Set(TimelinesAggregationConfig.userMentionAggregates),
-        aggregateType = AggregateType.UserMention,
-        extractMapFn = _.userMentionAggregates,
-        adapter = new SparseAggregatesToDenseAdapter(CombineCountPolicies.MentionCountsPolicy),
-        getSecondaryKeysFn = candidate =>
-          candidate.features.getOrElse(MentionScreenNameFeature, Seq.empty).map(_.hashCode.toLong)
-      )
-
-  object UserInferredTopicAggregateFeature
-      extends BaseEdgeAggregateFeature(
-        aggregateGroups = Set(
-          TimelinesAggregationConfig.userInferredTopicAggregates,
-        ),
-        aggregateType = AggregateType.UserInferredTopic,
-        extractMapFn = _.userInferredTopicAggregates,
-        adapter = new SparseAggregatesToDenseAdapter(
-          CombineCountPolicies.UserInferredTopicCountsPolicy),
-        getSecondaryKeysFn = candidate =>
-          candidate.features.getOrElse(TSPInferredTopicFeature, Map.empty[Long, Double]).keys.toSeq
-      )
-
-  object UserInferredTopicAggregateV2Feature
-      extends BaseEdgeAggregateFeature(
-        aggregateGroups = Set(
-          TimelinesAggregationConfig.userInferredTopicAggregatesV2
-        ),
-        aggregateType = AggregateType.UserInferredTopic,
-        extractMapFn = _.userInferredTopicAggregates,
-        adapter = new SparseAggregatesToDenseAdapter(
-          CombineCountPolicies.UserInferredTopicV2CountsPolicy),
-        getSecondaryKeysFn = candidate =>
-          candidate.features.getOrElse(TSPInferredTopicFeature, Map.empty[Long, Double]).keys.toSeq
-      )
-
-  object UserMediaUnderstandingAnnotationAggregateFeature
-      extends BaseEdgeAggregateFeature(
-        aggregateGroups = Set(
-          TimelinesAggregationConfig.userMediaUnderstandingAnnotationAggregates),
-        aggregateType = AggregateType.UserMediaUnderstandingAnnotation,
-        extractMapFn = _.userMediaUnderstandingAnnotationAggregates,
-        adapter = new SparseAggregatesToDenseAdapter(
-          CombineCountPolicies.UserMediaUnderstandingAnnotationCountsPolicy),
-        getSecondaryKeysFn = candidate =>
-          CandidatesUtil.getMediaUnderstandingAnnotationIds(candidate.features)
-      )
-
-  object UserEngagerAggregateFeature
-      extends BaseEdgeAggregateFeature(
-        aggregateGroups = Set(TimelinesAggregationConfig.userEngagerAggregates),
-        aggregateType = AggregateType.UserEngager,
-        extractMapFn = _.userEngagerAggregates,
-        adapter = new SparseAggregatesToDenseAdapter(CombineCountPolicies.EngagerCountsPolicy),
-        getSecondaryKeysFn = candidate => CandidatesUtil.getEngagerUserIds(candidate.features)
-      )
-
-  object UserEngagerGoodClickAggregateFeature
-      extends BaseEdgeAggregateFeature(
-        aggregateGroups = Set(TimelinesAggregationConfig.userEngagerGoodClickAggregates),
-        aggregateType = AggregateType.UserEngager,
-        extractMapFn = _.userEngagerAggregates,
-        adapter = new SparseAggregatesToDenseAdapter(
-          CombineCountPolicies.EngagerGoodClickCountsPolicy),
-        getSecondaryKeysFn = candidate => CandidatesUtil.getEngagerUserIds(candidate.features)
-      )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/PartAAggregateQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/PartAAggregateQueryFeatureHydrator.scala
deleted file mode 100644
index f18cceaca..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/PartAAggregateQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,35 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates
-
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TimelineAggregateMetadataRepository
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TimelineAggregatePartARepository
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.servo.repository.Repository
-import com.twitter.timelines.data_processing.jobs.timeline_ranking_user_features.TimelinesPartAStoreRegister
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.StoreConfig
-import com.twitter.timelines.suggests.common.dense_data_record.thriftscala.DenseFeatureMetadata
-import com.twitter.user_session_store.thriftjava.UserSession
-import javax.inject.Inject
-import javax.inject.Named
-import javax.inject.Singleton
-
-object PartAAggregateRootFeature extends BaseAggregateRootFeature {
-  override val aggregateStores: Set[StoreConfig[_]] = TimelinesPartAStoreRegister.allStores
-}
-
-@Singleton
-class PartAAggregateQueryFeatureHydrator @Inject() (
-  @Named(TimelineAggregatePartARepository)
-  repository: Repository[Long, Option[UserSession]],
-  @Named(TimelineAggregateMetadataRepository)
-  metadataRepository: Repository[Int, Option[DenseFeatureMetadata]])
-    extends BaseAggregateQueryFeatureHydrator(
-      repository,
-      metadataRepository,
-      PartAAggregateRootFeature
-    ) {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("PartAAggregateQuery")
-
-  override val features = Set(PartAAggregateRootFeature)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/PartBAggregateQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/PartBAggregateQueryFeatureHydrator.scala
deleted file mode 100644
index fa0336165..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/PartBAggregateQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,144 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates
-
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TimelineAggregateMetadataRepository
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TimelineAggregatePartBRepository
-import com.twitter.ml.api.DataRecord
-import com.twitter.ml.api.DataRecordMerger
-import com.twitter.ml.api.FeatureContext
-import com.twitter.ml.api.RichDataRecord
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.servo.repository.Repository
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.data_processing.jobs.timeline_ranking_user_features.TimelinesPartBStoreRegister
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.AggregateType
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.StoreConfig
-import com.twitter.timelines.prediction.adapters.request_context.RequestContextAdapter
-import com.twitter.timelines.prediction.common.aggregates.TimelinesAggregationConfig
-import com.twitter.timelines.suggests.common.dense_data_record.thriftscala.DenseFeatureMetadata
-import com.twitter.user_session_store.thriftjava.UserSession
-import com.twitter.util.Time
-import javax.inject.Inject
-import javax.inject.Named
-import javax.inject.Singleton
-
-object PartBAggregateRootFeature extends BaseAggregateRootFeature {
-  override val aggregateStores: Set[StoreConfig[_]] = TimelinesPartBStoreRegister.allStores
-}
-
-object UserAggregateFeature
-    extends DataRecordInAFeature[PipelineQuery]
-    with FeatureWithDefaultOnFailure[PipelineQuery, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class PartBAggregateQueryFeatureHydrator @Inject() (
-  @Named(TimelineAggregatePartBRepository)
-  repository: Repository[Long, Option[UserSession]],
-  @Named(TimelineAggregateMetadataRepository)
-  metadataRepository: Repository[Int, Option[DenseFeatureMetadata]])
-    extends BaseAggregateQueryFeatureHydrator(
-      repository,
-      metadataRepository,
-      PartBAggregateRootFeature
-    ) {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("PartBAggregateQuery")
-
-  override val features: Set[Feature[_, _]] =
-    Set(PartBAggregateRootFeature, UserAggregateFeature)
-
-  private val userAggregateFeatureInfo = new AggregateFeatureInfo(
-    aggregateGroups = Set(
-      TimelinesAggregationConfig.userAggregatesV2,
-      TimelinesAggregationConfig.userAggregatesV5Continuous,
-      TimelinesAggregationConfig.userAggregatesV6,
-      TimelinesAggregationConfig.twitterWideUserAggregates,
-    ),
-    aggregateType = AggregateType.User
-  )
-
-  private val userHourAggregateFeatureInfo = new AggregateFeatureInfo(
-    aggregateGroups = Set(
-      TimelinesAggregationConfig.userRequestHourAggregates,
-    ),
-    aggregateType = AggregateType.UserRequestHour
-  )
-
-  private val userDowAggregateFeatureInfo = new AggregateFeatureInfo(
-    aggregateGroups = Set(
-      TimelinesAggregationConfig.userRequestDowAggregates
-    ),
-    aggregateType = AggregateType.UserRequestDow
-  )
-
-  require(
-    userAggregateFeatureInfo.feature == PartBAggregateRootFeature,
-    "UserAggregates feature must be provided by the PartB data source.")
-  require(
-    userHourAggregateFeatureInfo.feature == PartBAggregateRootFeature,
-    "UserRequstHourAggregates feature must be provided by the PartB data source.")
-  require(
-    userDowAggregateFeatureInfo.feature == PartBAggregateRootFeature,
-    "UserRequestDowAggregates feature must be provided by the PartB data source.")
-
-  override def hydrate(query: PipelineQuery): Stitch[FeatureMap] = {
-    // Hydrate TimelineAggregatePartBFeature and UserAggregateFeature sequentially.
-    super.hydrate(query).map { featureMap =>
-      val time: Time = Time.now
-      val hourOfDay = RequestContextAdapter.hourFromTimestamp(time.inMilliseconds)
-      val dayOfWeek = RequestContextAdapter.dowFromTimestamp(time.inMilliseconds)
-
-      val dr = featureMap
-        .get(PartBAggregateRootFeature).map { featuresWithMetadata =>
-          val userAggregatesDr =
-            featuresWithMetadata.userAggregatesOpt
-              .map(featuresWithMetadata.toDataRecord)
-          val userRequestHourAggregatesDr =
-            Option(featuresWithMetadata.userRequestHourAggregates.get(hourOfDay))
-              .map(featuresWithMetadata.toDataRecord)
-          val userRequestDowAggregatesDr =
-            Option(featuresWithMetadata.userRequestDowAggregates.get(dayOfWeek))
-              .map(featuresWithMetadata.toDataRecord)
-
-          dropUnknownFeatures(userAggregatesDr, userAggregateFeatureInfo.featureContext)
-
-          dropUnknownFeatures(
-            userRequestHourAggregatesDr,
-            userHourAggregateFeatureInfo.featureContext)
-
-          dropUnknownFeatures(
-            userRequestDowAggregatesDr,
-            userDowAggregateFeatureInfo.featureContext)
-
-          mergeDataRecordOpts(
-            userAggregatesDr,
-            userRequestHourAggregatesDr,
-            userRequestDowAggregatesDr)
-
-        }.getOrElse(new DataRecord())
-
-      featureMap + (UserAggregateFeature, dr)
-    }
-  }
-
-  private val drMerger = new DataRecordMerger
-  private def mergeDataRecordOpts(dataRecordOpts: Option[DataRecord]*): DataRecord =
-    dataRecordOpts.flatten.foldLeft(new DataRecord) { (l, r) =>
-      drMerger.merge(l, r)
-      l
-    }
-
-  private def dropUnknownFeatures(
-    dataRecordOpt: Option[DataRecord],
-    featureContext: FeatureContext
-  ): Unit =
-    dataRecordOpt.foreach(new RichDataRecord(_, featureContext).dropUnknownFeatures())
-
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/Phase1EdgeAggregateFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/Phase1EdgeAggregateFeatureHydrator.scala
deleted file mode 100644
index d9df51d5c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/Phase1EdgeAggregateFeatureHydrator.scala
+++ /dev/null
@@ -1,19 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates
-
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates.EdgeAggregateFeatures._
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class Phase1EdgeAggregateFeatureHydrator @Inject() extends BaseEdgeAggregateFeatureHydrator {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("Phase1EdgeAggregate")
-
-  override val aggregateFeatures: Set[BaseEdgeAggregateFeature] = Set(
-    UserAuthorAggregateFeature,
-    UserOriginalAuthorAggregateFeature,
-    UserMentionAggregateFeature
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/Phase2EdgeAggregateFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/Phase2EdgeAggregateFeatureHydrator.scala
deleted file mode 100644
index cfbb0b2c9..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/Phase2EdgeAggregateFeatureHydrator.scala
+++ /dev/null
@@ -1,28 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates
-
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates.EdgeAggregateFeatures.UserEngagerAggregateFeature
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates.EdgeAggregateFeatures.UserEngagerGoodClickAggregateFeature
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates.EdgeAggregateFeatures.UserInferredTopicAggregateFeature
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates.EdgeAggregateFeatures.UserInferredTopicAggregateV2Feature
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates.EdgeAggregateFeatures.UserMediaUnderstandingAnnotationAggregateFeature
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates.EdgeAggregateFeatures.UserTopicAggregateFeature
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class Phase2EdgeAggregateFeatureHydrator @Inject() extends BaseEdgeAggregateFeatureHydrator {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("Phase2EdgeAggregate")
-
-  override val aggregateFeatures: Set[BaseEdgeAggregateFeature] =
-    Set(
-      UserEngagerAggregateFeature,
-      UserEngagerGoodClickAggregateFeature,
-      UserInferredTopicAggregateFeature,
-      UserInferredTopicAggregateV2Feature,
-      UserTopicAggregateFeature,
-      UserMediaUnderstandingAnnotationAggregateFeature
-    )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/Utils.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/Utils.scala
deleted file mode 100644
index 6ae1a0f4b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates/Utils.scala
+++ /dev/null
@@ -1,36 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates
-
-import com.twitter.ml.api.DataRecord
-import com.twitter.ml.api.FeatureContext
-import com.twitter.ml.api.RichDataRecord
-import com.twitter.timelines.suggests.common.dense_data_record.thriftjava.DenseCompactDataRecord
-
-private[offline_aggregates] object Utils {
-
-  /**
-   * Selects only those values in map that correspond to the keys in ids and apply the provided
-   * transform to the selected values. This is a convenience method for use by Timelines Aggregation
-   * Framework based features.
-   *
-   * @param idsToSelect The set of ids to extract values for.
-   * @param transform A transform to apply to the selected values.
-   * @param map Map[Long, DenseCompactDataRecord]
-   */
-  def selectAndTransform(
-    idsToSelect: Seq[Long],
-    transform: DenseCompactDataRecord => DataRecord,
-    map: java.util.Map[java.lang.Long, DenseCompactDataRecord],
-  ): Map[Long, DataRecord] = {
-    val filtered: Seq[(Long, DataRecord)] =
-      for {
-        id <- idsToSelect if map.containsKey(id)
-      } yield {
-        id -> transform(map.get(id))
-      }
-    filtered.toMap
-  }
-
-  def filterDataRecord(dr: DataRecord, featureContext: FeatureContext): Unit = {
-    new RichDataRecord(dr, featureContext).dropUnknownFeatures()
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/BUILD.bazel
deleted file mode 100644
index 1954dd77d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/BUILD.bazel
+++ /dev/null
@@ -1,26 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "finatra/inject/inject-core/src/main/scala",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/feature/datarecord",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/util",
-        "servo/repo/src/main/scala",
-        "src/java/com/twitter/ml/api:api-base",
-        "src/java/com/twitter/ml/api/constant",
-        "src/scala/com/twitter/ml/api/util",
-        "src/scala/com/twitter/timelines/prediction/common/aggregates/real_time:base-config",
-        "src/thrift/com/twitter/ml/api:data-java",
-        "src/thrift/com/twitter/wtf/real_time_interaction_graph:wtf-real_time_interaction_graph-thrift-java",
-        "stitch/stitch-core",
-        "timelines/data_processing/ml_util/aggregation_framework:common_types",
-        "timelines/data_processing/ml_util/aggregation_framework/heron",
-        "util/util-core",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/BaseRealTimeAggregateBulkCandidateFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/BaseRealTimeAggregateBulkCandidateFeatureHydrator.scala
deleted file mode 100644
index 41b565ded..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/BaseRealTimeAggregateBulkCandidateFeatureHydrator.scala
+++ /dev/null
@@ -1,40 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.real_time_aggregates
-
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BulkCandidateFeatureHydrator
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.stitch.Stitch
-
-trait BaseRealTimeAggregateBulkCandidateFeatureHydrator[K]
-    extends BulkCandidateFeatureHydrator[PipelineQuery, TweetCandidate]
-    with BaseRealtimeAggregateHydrator[K] {
-
-  val outputFeature: DataRecordInAFeature[TweetCandidate]
-
-  override def features: Set[Feature[_, _]] = Set(outputFeature)
-
-  override lazy val statScope: String = identifier.toString
-
-  def keysFromQueryAndCandidates(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Seq[Option[K]]
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = OffloadFuturePools.offloadFuture {
-    val possiblyKeys = keysFromQueryAndCandidates(query, candidates)
-    fetchAndConstructDataRecords(possiblyKeys).map { dataRecords =>
-      dataRecords.map { dataRecord =>
-        FeatureMapBuilder().add(outputFeature, dataRecord).build()
-      }
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/BaseRealTimeAggregateQueryFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/BaseRealTimeAggregateQueryFeatureHydrator.scala
deleted file mode 100644
index 8f5b17d64..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/BaseRealTimeAggregateQueryFeatureHydrator.scala
+++ /dev/null
@@ -1,36 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.real_time_aggregates
-
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.stitch.Stitch
-
-trait BaseRealTimeAggregateQueryFeatureHydrator[K]
-    extends QueryFeatureHydrator[PipelineQuery]
-    with BaseRealtimeAggregateHydrator[K] {
-
-  val outputFeature: DataRecordInAFeature[PipelineQuery]
-
-  override def features: Set[Feature[_, _]] = Set(outputFeature)
-
-  override lazy val statScope: String = identifier.toString
-
-  def keysFromQueryAndCandidates(
-    query: PipelineQuery
-  ): Option[K]
-
-  override def hydrate(
-    query: PipelineQuery
-  ): Stitch[FeatureMap] = OffloadFuturePools.offloadFuture {
-    val possiblyKeys = keysFromQueryAndCandidates(query)
-    fetchAndConstructDataRecords(Seq(possiblyKeys)).map { dataRecords =>
-      FeatureMapBuilder()
-        .add(outputFeature, dataRecords.head)
-        .build()
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/BaseRealtimeAggregateHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/BaseRealtimeAggregateHydrator.scala
deleted file mode 100644
index f97820be0..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/BaseRealtimeAggregateHydrator.scala
+++ /dev/null
@@ -1,138 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.real_time_aggregates
-
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.real_time_aggregates.BaseRealtimeAggregateHydrator._
-import com.twitter.home_mixer.util.DataRecordUtil
-import com.twitter.home_mixer.util.ObservedKeyValueResultHandler
-import com.twitter.ml.api.DataRecord
-import com.twitter.ml.api.DataRecordMerger
-import com.twitter.ml.api.FeatureContext
-import com.twitter.ml.api.constant.SharedFeatures
-import com.twitter.ml.api.util.SRichDataRecord
-import com.twitter.ml.api.{Feature => MLApiFeature}
-import com.twitter.servo.cache.ReadCache
-import com.twitter.servo.keyvalue.KeyValueResult
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.AggregateGroup
-import com.twitter.util.Future
-import com.twitter.util.Time
-import com.twitter.util.Try
-import java.lang.{Double => JDouble}
-import scala.collection.JavaConverters._
-
-trait BaseRealtimeAggregateHydrator[K] extends ObservedKeyValueResultHandler {
-
-  val client: ReadCache[K, DataRecord]
-
-  val aggregateGroups: Seq[AggregateGroup]
-
-  val aggregateGroupToPrefix: Map[AggregateGroup, String] = Map.empty
-
-  private lazy val typedAggregateGroupsList = aggregateGroups.map(_.buildTypedAggregateGroups())
-
-  private lazy val featureContexts: Seq[FeatureContext] = typedAggregateGroupsList.map {
-    typedAggregateGroups =>
-      new FeatureContext(
-        (SharedFeatures.TIMESTAMP +: typedAggregateGroups.flatMap(_.allOutputFeatures)).asJava
-      )
-  }
-
-  private lazy val aggregateFeaturesRenameMap: Map[MLApiFeature[_], MLApiFeature[_]] = {
-    val prefixes: Seq[Option[String]] = aggregateGroups.map(aggregateGroupToPrefix.get)
-
-    typedAggregateGroupsList
-      .zip(prefixes).map {
-        case (typedAggregateGroups, prefix) =>
-          if (prefix.nonEmpty)
-            typedAggregateGroups
-              .map {
-                _.outputFeaturesToRenamedOutputFeatures(prefix.get)
-              }.reduce(_ ++ _)
-          else
-            Map.empty[MLApiFeature[_], MLApiFeature[_]]
-      }.reduce(_ ++ _)
-  }
-
-  private lazy val renamedFeatureContexts: Seq[FeatureContext] =
-    typedAggregateGroupsList.map { typedAggregateGroups =>
-      val renamedAllOutputFeatures = typedAggregateGroups.flatMap(_.allOutputFeatures).map {
-        feature => aggregateFeaturesRenameMap.getOrElse(feature, feature)
-      }
-
-      new FeatureContext(renamedAllOutputFeatures.asJava)
-    }
-
-  private lazy val decays: Seq[TimeDecay] = typedAggregateGroupsList.map { typedAggregateGroups =>
-    RealTimeAggregateTimeDecay(
-      typedAggregateGroups.flatMap(_.continuousFeatureIdsToHalfLives).toMap)
-      .apply(_, _)
-  }
-
-  private val drMerger = new DataRecordMerger
-
-  private def postTransformer(dataRecord: Try[Option[DataRecord]]): Try[DataRecord] = {
-    dataRecord.map {
-      case Some(dr) =>
-        val newDr = new DataRecord()
-        featureContexts.zip(renamedFeatureContexts).zip(decays).foreach {
-          case ((featureContext, renamedFeatureContext), decay) =>
-            val decayedDr = applyDecay(dr, featureContext, decay)
-            val renamedDr = DataRecordUtil.applyRename(
-              dataRecord = decayedDr,
-              featureContext,
-              renamedFeatureContext,
-              aggregateFeaturesRenameMap)
-            drMerger.merge(newDr, renamedDr)
-        }
-        newDr
-      case _ => new DataRecord
-    }
-  }
-
-  def fetchAndConstructDataRecords(possiblyKeys: Seq[Option[K]]): Future[Seq[Try[DataRecord]]] = {
-    val keys = possiblyKeys.flatten
-
-    val response: Future[KeyValueResult[K, DataRecord]] =
-      if (keys.isEmpty) Future.value(KeyValueResult.empty)
-      else {
-        val batchResponses = keys
-          .grouped(RequestBatchSize)
-          .map(keyGroup => client.get(keyGroup))
-          .toSeq
-
-        Future.collect(batchResponses).map(_.reduce(_ ++ _))
-      }
-
-    response.map { result =>
-      possiblyKeys.map { possiblyKey =>
-        val value = observedGet(key = possiblyKey, keyValueResult = result)
-        postTransformer(value)
-      }
-    }
-  }
-}
-
-object BaseRealtimeAggregateHydrator {
-  private val RequestBatchSize = 5
-
-  type TimeDecay = scala.Function2[com.twitter.ml.api.DataRecord, scala.Long, scala.Unit]
-
-  private def applyDecay(
-    dataRecord: DataRecord,
-    featureContext: FeatureContext,
-    decay: TimeDecay
-  ): DataRecord = {
-    def time: Long = Time.now.inMillis
-
-    val richFullDr = new SRichDataRecord(dataRecord, featureContext)
-    val richNewDr = new SRichDataRecord(new DataRecord, featureContext)
-    val featureIterator = featureContext.iterator()
-    featureIterator.forEachRemaining { feature =>
-      if (richFullDr.hasFeature(feature)) {
-        val typedFeature = feature.asInstanceOf[MLApiFeature[JDouble]]
-        richNewDr.setFeatureValue(typedFeature, richFullDr.getFeatureValue(typedFeature))
-      }
-    }
-    val resultDr = richNewDr.getRecord
-    decay(resultDr, time)
-    resultDr
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/EngagementsReceivedByAuthorRealTimeAggregateFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/EngagementsReceivedByAuthorRealTimeAggregateFeatureHydrator.scala
deleted file mode 100644
index 990fe1ca4..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/EngagementsReceivedByAuthorRealTimeAggregateFeatureHydrator.scala
+++ /dev/null
@@ -1,52 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.real_time_aggregates
-
-import com.google.inject.name.Named
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.EngagementsReceivedByAuthorCache
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.servo.cache.ReadCache
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.AggregateGroup
-import com.twitter.timelines.prediction.common.aggregates.real_time.TimelinesOnlineAggregationFeaturesOnlyConfig._
-import javax.inject.Inject
-import javax.inject.Singleton
-
-object EngagementsReceivedByAuthorRealTimeAggregateFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class EngagementsReceivedByAuthorRealTimeAggregateFeatureHydrator @Inject() (
-  @Named(EngagementsReceivedByAuthorCache) override val client: ReadCache[Long, DataRecord],
-  override val statsReceiver: StatsReceiver)
-    extends BaseRealTimeAggregateBulkCandidateFeatureHydrator[Long] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("EngagementsReceivedByAuthorRealTimeAggregate")
-
-  override val outputFeature: DataRecordInAFeature[TweetCandidate] =
-    EngagementsReceivedByAuthorRealTimeAggregateFeature
-
-  override val aggregateGroups: Seq[AggregateGroup] = Seq(
-    authorEngagementRealTimeAggregatesProd,
-    authorShareEngagementsRealTimeAggregates
-  )
-
-  override val aggregateGroupToPrefix: Map[AggregateGroup, String] = Map(
-    authorShareEngagementsRealTimeAggregates -> "original_author.timelines.author_share_engagements_real_time_aggregates."
-  )
-
-  override def keysFromQueryAndCandidates(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Seq[Option[Long]] =
-    candidates.map(candidate => CandidatesUtil.getOriginalAuthorId(candidate.features))
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/RealTimeAggregateTimeDecay.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/RealTimeAggregateTimeDecay.scala
deleted file mode 100644
index dbecd12c6..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/RealTimeAggregateTimeDecay.scala
+++ /dev/null
@@ -1,50 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.real_time_aggregates
-
-import com.twitter.ml.api.DataRecord
-import com.twitter.ml.api.constant.SharedFeatures.TIMESTAMP
-import com.twitter.util.Duration
-
-/**
- * The default TimeDecay implementation for real time aggregates.
- *
- * @param featureIdToHalfLife A precomputed map from aggregate feature ids to their half lives.
- * @param timestampFeatureId A discrete timestamp feature id.
- */
-case class RealTimeAggregateTimeDecay(
-  featureIdToHalfLife: Map[Long, Duration],
-  timestampFeatureId: Long = TIMESTAMP.getFeatureId) {
-
-  /**
-   * Mutates the data record which is just a reference to the input.
-   *
-   * @param record    Data record to apply decay to (is mutated).
-   * @param timeNow   The current read time (in milliseconds) to decay counts forward to.
-   */
-  def apply(record: DataRecord, timeNow: Long): Unit = {
-    if (record.isSetDiscreteFeatures) {
-      val discreteFeatures = record.getDiscreteFeatures
-      if (discreteFeatures.containsKey(timestampFeatureId)) {
-        if (record.isSetContinuousFeatures) {
-          val ctsFeatures = record.getContinuousFeatures
-
-          val storedTimestamp: Long = discreteFeatures.get(timestampFeatureId)
-          val scaledDt = if (timeNow > storedTimestamp) {
-            (timeNow - storedTimestamp).toDouble * math.log(2)
-          } else 0.0
-          featureIdToHalfLife.foreach {
-            case (featureId, halfLife) =>
-              if (ctsFeatures.containsKey(featureId)) {
-                val storedValue = ctsFeatures.get(featureId)
-                val alpha =
-                  if (halfLife.inMilliseconds != 0) math.exp(-scaledDt / halfLife.inMilliseconds)
-                  else 0
-                val decayedValue: Double = alpha * storedValue
-                record.putToContinuousFeatures(featureId, decayedValue)
-              }
-          }
-        }
-        discreteFeatures.remove(timestampFeatureId)
-      }
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/TopicCountryEngagementRealTimeAggregateFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/TopicCountryEngagementRealTimeAggregateFeatureHydrator.scala
deleted file mode 100644
index 13b2a0d2d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/TopicCountryEngagementRealTimeAggregateFeatureHydrator.scala
+++ /dev/null
@@ -1,64 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.real_time_aggregates
-
-import com.google.inject.name.Named
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.model.HomeFeatures.TopicIdSocialContextFeature
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TopicCountryEngagementCache
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.servo.cache.ReadCache
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.AggregateGroup
-import com.twitter.timelines.prediction.common.aggregates.real_time.TimelinesOnlineAggregationFeaturesOnlyConfig._
-import javax.inject.Inject
-import javax.inject.Singleton
-
-object TopicCountryEngagementRealTimeAggregateFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class TopicCountryEngagementRealTimeAggregateFeatureHydrator @Inject() (
-  @Named(TopicCountryEngagementCache) override val client: ReadCache[(Long, String), DataRecord],
-  override val statsReceiver: StatsReceiver)
-    extends BaseRealTimeAggregateBulkCandidateFeatureHydrator[(Long, String)] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("TopicCountryEngagementRealTimeAggregate")
-
-  override val outputFeature: DataRecordInAFeature[TweetCandidate] =
-    TopicCountryEngagementRealTimeAggregateFeature
-
-  override val aggregateGroups: Seq[AggregateGroup] = Seq(
-    topicCountryRealTimeAggregates
-  )
-
-  override val aggregateGroupToPrefix: Map[AggregateGroup, String] = Map(
-    topicCountryRealTimeAggregates -> "topic-country_code.timelines.topic_country_engagement_real_time_aggregates."
-  )
-
-  override def keysFromQueryAndCandidates(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Seq[Option[(Long, String)]] = {
-    candidates.map { candidate =>
-      val maybeTopicId = candidate.features
-        .getTry(TopicIdSocialContextFeature)
-        .toOption
-        .flatten
-
-      val maybeCountryCode = query.clientContext.countryCode
-
-      for {
-        topicId <- maybeTopicId
-        countryCode <- maybeCountryCode
-      } yield (topicId, countryCode)
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/TopicEngagementRealTimeAggregateFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/TopicEngagementRealTimeAggregateFeatureHydrator.scala
deleted file mode 100644
index 12a2e1c47..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/TopicEngagementRealTimeAggregateFeatureHydrator.scala
+++ /dev/null
@@ -1,60 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.real_time_aggregates
-
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.model.HomeFeatures.TopicIdSocialContextFeature
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TopicEngagementCache
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.servo.cache.ReadCache
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.AggregateGroup
-import com.twitter.timelines.prediction.common.aggregates.real_time.TimelinesOnlineAggregationFeaturesOnlyConfig._
-import javax.inject.Inject
-import javax.inject.Named
-import javax.inject.Singleton
-
-object TopicEngagementRealTimeAggregateFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class TopicEngagementRealTimeAggregateFeatureHydrator @Inject() (
-  @Named(TopicEngagementCache) override val client: ReadCache[Long, DataRecord],
-  override val statsReceiver: StatsReceiver)
-    extends BaseRealTimeAggregateBulkCandidateFeatureHydrator[Long] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("TopicEngagementRealTimeAggregate")
-
-  override val outputFeature: DataRecordInAFeature[TweetCandidate] =
-    TopicEngagementRealTimeAggregateFeature
-
-  override val aggregateGroups: Seq[AggregateGroup] = Seq(
-    topicEngagementRealTimeAggregatesProd,
-    topicEngagement24HourRealTimeAggregatesProd,
-    topicShareEngagementsRealTimeAggregates
-  )
-
-  override val aggregateGroupToPrefix: Map[AggregateGroup, String] = Map(
-    topicEngagement24HourRealTimeAggregatesProd -> "topic.timelines.topic_engagement_24_hour_real_time_aggregates.",
-    topicShareEngagementsRealTimeAggregates -> "topic.timelines.topic_share_engagements_real_time_aggregates."
-  )
-
-  override def keysFromQueryAndCandidates(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Seq[Option[Long]] = {
-    candidates.map { candidate =>
-      candidate.features
-        .getTry(TopicIdSocialContextFeature)
-        .toOption
-        .flatten
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/TweetCountryEngagementRealTimeAggregateFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/TweetCountryEngagementRealTimeAggregateFeatureHydrator.scala
deleted file mode 100644
index cd9e34a3e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/TweetCountryEngagementRealTimeAggregateFeatureHydrator.scala
+++ /dev/null
@@ -1,58 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.real_time_aggregates
-
-import com.google.inject.name.Named
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TweetCountryEngagementCache
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.servo.cache.ReadCache
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.AggregateGroup
-import com.twitter.timelines.prediction.common.aggregates.real_time.TimelinesOnlineAggregationFeaturesOnlyConfig._
-import javax.inject.Inject
-import javax.inject.Singleton
-
-object TweetCountryEngagementRealTimeAggregateFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class TweetCountryEngagementRealTimeAggregateFeatureHydrator @Inject() (
-  @Named(TweetCountryEngagementCache) override val client: ReadCache[(Long, String), DataRecord],
-  override val statsReceiver: StatsReceiver)
-    extends BaseRealTimeAggregateBulkCandidateFeatureHydrator[(Long, String)] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("TweetCountryEngagementRealTimeAggregate")
-
-  override val outputFeature: DataRecordInAFeature[TweetCandidate] =
-    TweetCountryEngagementRealTimeAggregateFeature
-
-  override val aggregateGroups: Seq[AggregateGroup] = Seq(
-    tweetCountryRealTimeAggregates,
-    tweetCountryPrivateEngagementsRealTimeAggregates
-  )
-
-  override val aggregateGroupToPrefix: Map[AggregateGroup, String] = Map(
-    tweetCountryRealTimeAggregates -> "tweet-country_code.timelines.tweet_country_engagement_real_time_aggregates.",
-    tweetCountryPrivateEngagementsRealTimeAggregates -> "tweet-country_code.timelines.tweet_country_private_engagement_real_time_aggregates."
-  )
-
-  override def keysFromQueryAndCandidates(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Seq[Option[(Long, String)]] = {
-    val countryCode = query.clientContext.countryCode
-    candidates.map { candidate =>
-      val originalTweetId = CandidatesUtil.getOriginalTweetId(candidate)
-      countryCode.map((originalTweetId, _))
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/TweetEngagementRealTimeAggregateFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/TweetEngagementRealTimeAggregateFeatureHydrator.scala
deleted file mode 100644
index 99bae79d9..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/TweetEngagementRealTimeAggregateFeatureHydrator.scala
+++ /dev/null
@@ -1,61 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.real_time_aggregates
-
-import com.google.inject.name.Named
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TweetEngagementCache
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.servo.cache.ReadCache
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.AggregateGroup
-import com.twitter.timelines.prediction.common.aggregates.real_time.TimelinesOnlineAggregationFeaturesOnlyConfig._
-import javax.inject.Inject
-import javax.inject.Singleton
-
-object TweetEngagementRealTimeAggregateFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class TweetEngagementRealTimeAggregateFeatureHydrator @Inject() (
-  @Named(TweetEngagementCache) override val client: ReadCache[Long, DataRecord],
-  override val statsReceiver: StatsReceiver)
-    extends BaseRealTimeAggregateBulkCandidateFeatureHydrator[Long] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("TweetEngagementRealTimeAggregate")
-
-  override val outputFeature: DataRecordInAFeature[TweetCandidate] =
-    TweetEngagementRealTimeAggregateFeature
-
-  override val aggregateGroups: Seq[AggregateGroup] = Seq(
-    tweetEngagement30MinuteCountsProd,
-    tweetEngagementTotalCountsProd,
-    tweetEngagementUserStateRealTimeAggregatesProd,
-    tweetNegativeEngagementUserStateRealTimeAggregates,
-    tweetNegativeEngagement6HourCounts,
-    tweetNegativeEngagementTotalCounts,
-    tweetShareEngagementsRealTimeAggregates,
-    tweetBCEDwellEngagementsRealTimeAggregates
-  )
-
-  override val aggregateGroupToPrefix: Map[AggregateGroup, String] = Map(
-    tweetShareEngagementsRealTimeAggregates -> "original_tweet.timelines.tweet_share_engagements_real_time_aggregates.",
-    tweetBCEDwellEngagementsRealTimeAggregates -> "original_tweet.timelines.tweet_bce_dwell_engagements_real_time_aggregates."
-  )
-
-  override def keysFromQueryAndCandidates(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Seq[Option[Long]] = {
-    candidates
-      .map(candidate => Some(CandidatesUtil.getOriginalTweetId(candidate)))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/TwitterListEngagementRealTimeAggregateFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/TwitterListEngagementRealTimeAggregateFeatureHydrator.scala
deleted file mode 100644
index b5f3af2a9..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/TwitterListEngagementRealTimeAggregateFeatureHydrator.scala
+++ /dev/null
@@ -1,57 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.real_time_aggregates
-
-import com.google.inject.name.Named
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.model.HomeFeatures.TwitterListIdFeature
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.TwitterListEngagementCache
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.servo.cache.ReadCache
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.AggregateGroup
-import com.twitter.timelines.prediction.common.aggregates.real_time.TimelinesOnlineAggregationFeaturesOnlyConfig._
-import javax.inject.Inject
-import javax.inject.Singleton
-
-object TwitterListEngagementRealTimeAggregateFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class TwitterListEngagementRealTimeAggregateFeatureHydrator @Inject() (
-  @Named(TwitterListEngagementCache) override val client: ReadCache[Long, DataRecord],
-  override val statsReceiver: StatsReceiver)
-    extends BaseRealTimeAggregateBulkCandidateFeatureHydrator[Long] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("TwitterListEngagementRealTimeAggregate")
-
-  override val outputFeature: DataRecordInAFeature[TweetCandidate] =
-    TwitterListEngagementRealTimeAggregateFeature
-
-  override val aggregateGroups: Seq[AggregateGroup] = Seq(
-    listEngagementRealTimeAggregatesProd
-  )
-
-  override val aggregateGroupToPrefix: Map[AggregateGroup, String] = Map(
-    listEngagementRealTimeAggregatesProd -> "twitter_list.timelines.twitter_list_engagement_real_time_aggregates."
-  )
-
-  override def keysFromQueryAndCandidates(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Seq[Option[Long]] = {
-    candidates.map { candidate =>
-      candidate.features
-        .getTry(TwitterListIdFeature)
-        .toOption
-        .flatten
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/UserAuthorEngagementRealTimeAggregateFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/UserAuthorEngagementRealTimeAggregateFeatureHydrator.scala
deleted file mode 100644
index 2c13fc0f6..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/UserAuthorEngagementRealTimeAggregateFeatureHydrator.scala
+++ /dev/null
@@ -1,59 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.real_time_aggregates
-
-import com.google.inject.name.Named
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.UserAuthorEngagementCache
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.servo.cache.ReadCache
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.AggregateGroup
-import com.twitter.timelines.prediction.common.aggregates.real_time.TimelinesOnlineAggregationFeaturesOnlyConfig._
-import javax.inject.Inject
-import javax.inject.Singleton
-
-object UserAuthorEngagementRealTimeAggregateFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class UserAuthorEngagementRealTimeAggregateFeatureHydrator @Inject() (
-  @Named(UserAuthorEngagementCache) override val client: ReadCache[(Long, Long), DataRecord],
-  override val statsReceiver: StatsReceiver)
-    extends BaseRealTimeAggregateBulkCandidateFeatureHydrator[(Long, Long)] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("UserAuthorEngagementRealTimeAggregate")
-
-  override val outputFeature: DataRecordInAFeature[TweetCandidate] =
-    UserAuthorEngagementRealTimeAggregateFeature
-
-  override val aggregateGroups: Seq[AggregateGroup] = Seq(
-    userAuthorEngagementRealTimeAggregatesProd,
-    userAuthorShareEngagementsRealTimeAggregates
-  )
-
-  override val aggregateGroupToPrefix: Map[AggregateGroup, String] = Map(
-    userAuthorEngagementRealTimeAggregatesProd -> "user-author.timelines.user_author_engagement_real_time_aggregates.",
-    userAuthorShareEngagementsRealTimeAggregates -> "user-author.timelines.user_author_share_engagements_real_time_aggregates."
-  )
-
-  override def keysFromQueryAndCandidates(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Seq[Option[(Long, Long)]] = {
-    val userId = query.getRequiredUserId
-    candidates.map { candidate =>
-      CandidatesUtil
-        .getOriginalAuthorId(candidate.features)
-        .map((userId, _))
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/UserEngagementRealTimeAggregatesFeatureHydrator.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/UserEngagementRealTimeAggregatesFeatureHydrator.scala
deleted file mode 100644
index cc05b52aa..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates/UserEngagementRealTimeAggregatesFeatureHydrator.scala
+++ /dev/null
@@ -1,56 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.feature_hydrator.real_time_aggregates
-
-import com.google.inject.name.Named
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.UserEngagementCache
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.model.common.identifier.FeatureHydratorIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.servo.cache.ReadCache
-import com.twitter.timelines.data_processing.ml_util.aggregation_framework.AggregateGroup
-import com.twitter.timelines.prediction.common.aggregates.real_time.TimelinesOnlineAggregationFeaturesOnlyConfig._
-import javax.inject.Inject
-import javax.inject.Singleton
-
-object UserEngagementRealTimeAggregateFeature
-    extends DataRecordInAFeature[PipelineQuery]
-    with FeatureWithDefaultOnFailure[PipelineQuery, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-class UserEngagementRealTimeAggregatesFeatureHydrator @Inject() (
-  @Named(UserEngagementCache) override val client: ReadCache[Long, DataRecord],
-  override val statsReceiver: StatsReceiver)
-    extends BaseRealTimeAggregateQueryFeatureHydrator[Long] {
-
-  override val identifier: FeatureHydratorIdentifier =
-    FeatureHydratorIdentifier("UserEngagementRealTimeAggregates")
-
-  override val outputFeature: DataRecordInAFeature[PipelineQuery] =
-    UserEngagementRealTimeAggregateFeature
-
-  val aggregateGroups: Seq[AggregateGroup] = Seq(
-    userEngagementRealTimeAggregatesProd,
-    userShareEngagementsRealTimeAggregates,
-    userBCEDwellEngagementsRealTimeAggregates,
-    userEngagement48HourRealTimeAggregatesProd,
-    userNegativeEngagementAuthorUserState72HourRealTimeAggregates,
-    userNegativeEngagementAuthorUserStateRealTimeAggregates,
-    userProfileEngagementRealTimeAggregates,
-  )
-
-  override val aggregateGroupToPrefix: Map[AggregateGroup, String] = Map(
-    userShareEngagementsRealTimeAggregates -> "user.timelines.user_share_engagements_real_time_aggregates.",
-    userBCEDwellEngagementsRealTimeAggregates -> "user.timelines.user_bce_dwell_engagements_real_time_aggregates.",
-    userEngagement48HourRealTimeAggregatesProd -> "user.timelines.user_engagement_48_hour_real_time_aggregates.",
-    userNegativeEngagementAuthorUserState72HourRealTimeAggregates -> "user.timelines.user_negative_engagement_author_user_state_72_hour_real_time_aggregates.",
-    userProfileEngagementRealTimeAggregates -> "user.timelines.user_profile_engagement_real_time_aggregates."
-  )
-
-  override def keysFromQueryAndCandidates(query: PipelineQuery): Option[Long] = {
-    Some(query.getRequiredUserId)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter/BUILD.bazel
deleted file mode 100644
index 07a2e7cb3..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter/BUILD.bazel
+++ /dev/null
@@ -1,14 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/filter",
-        "stitch/stitch-core",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter/DuplicateConversationTweetsFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter/DuplicateConversationTweetsFilter.scala
deleted file mode 100644
index adc11d255..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter/DuplicateConversationTweetsFilter.scala
+++ /dev/null
@@ -1,37 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.filter
-
-import com.twitter.home_mixer.model.HomeFeatures.AncestorsFeature
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-/**
- * Remove any candidate that is in the ancestor list of any reply, including retweets of ancestors.
- *
- * E.g. if B replied to A and D was a retweet of A, we would prefer to drop D since otherwise
- * we may end up serving the same tweet twice in the timeline (e.g. serving both A->B and D).
- */
-object DuplicateConversationTweetsFilter extends Filter[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("DuplicateConversationTweets")
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[FilterResult[TweetCandidate]] = {
-    val allAncestors = candidates
-      .flatMap(_.features.getOrElse(AncestorsFeature, Seq.empty))
-      .map(_.tweetId).toSet
-
-    val (kept, removed) = candidates.partition { candidate =>
-      !allAncestors.contains(CandidatesUtil.getOriginalTweetId(candidate))
-    }
-
-    Stitch.value(FilterResult(kept = kept.map(_.candidate), removed = removed.map(_.candidate)))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter/OutOfNetworkCompetitorFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter/OutOfNetworkCompetitorFilter.scala
deleted file mode 100644
index 3c6024268..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter/OutOfNetworkCompetitorFilter.scala
+++ /dev/null
@@ -1,38 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.filter
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CompetitorSetParam
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-object OutOfNetworkCompetitorFilter extends Filter[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("OutOfNetworkCompetitor")
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[FilterResult[TweetCandidate]] = {
-    val competitorAuthors = query.params(CompetitorSetParam)
-    val (removed, kept) =
-      candidates.partition(isOutOfNetworkTweetFromCompetitor(_, competitorAuthors))
-
-    Stitch.value(FilterResult(kept = kept.map(_.candidate), removed = removed.map(_.candidate)))
-  }
-
-  def isOutOfNetworkTweetFromCompetitor(
-    candidate: CandidateWithFeatures[TweetCandidate],
-    competitorAuthors: Set[Long]
-  ): Boolean = {
-    !candidate.features.getOrElse(InNetworkFeature, true) &&
-    !candidate.features.getOrElse(IsRetweetFeature, false) &&
-    candidate.features.getOrElse(AuthorIdFeature, None).exists(competitorAuthors.contains)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter/OutOfNetworkCompetitorURLFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter/OutOfNetworkCompetitorURLFilter.scala
deleted file mode 100644
index 00e2bb200..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter/OutOfNetworkCompetitorURLFilter.scala
+++ /dev/null
@@ -1,38 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.filter
-
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.TweetUrlsFeature
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CompetitorURLSeqParam
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-object OutOfNetworkCompetitorURLFilter extends Filter[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("OutOfNetworkCompetitorURL")
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[FilterResult[TweetCandidate]] = {
-    val competitorUrls = query.params(CompetitorURLSeqParam).toSet
-    val (removed, kept) = candidates.partition(hasOutOfNetworkUrlFromCompetitor(_, competitorUrls))
-
-    Stitch.value(FilterResult(kept = kept.map(_.candidate), removed = removed.map(_.candidate)))
-  }
-
-  def hasOutOfNetworkUrlFromCompetitor(
-    candidate: CandidateWithFeatures[TweetCandidate],
-    competitorUrls: Set[String]
-  ): Boolean = {
-    !candidate.features.getOrElse(InNetworkFeature, true) &&
-    !candidate.features.getOrElse(IsRetweetFeature, false) &&
-    candidate.features
-      .getOrElse(TweetUrlsFeature, Seq.empty).toSet.intersect(competitorUrls).nonEmpty
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter/RetweetSourceTweetRemovingFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter/RetweetSourceTweetRemovingFilter.scala
deleted file mode 100644
index 5900756d3..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter/RetweetSourceTweetRemovingFilter.scala
+++ /dev/null
@@ -1,40 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.filter
-
-import com.twitter.home_mixer.model.HomeFeatures.EarlybirdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.util.ReplyRetweetUtil
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-/**
- * This filter removes source tweets of retweets, added via second EB call in TLR
- */
-object RetweetSourceTweetRemovingFilter extends Filter[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("RetweetSourceTweetRemoving")
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[FilterResult[TweetCandidate]] = {
-    val (kept, removed) =
-      candidates.partition(
-        _.features.getOrElse(EarlybirdFeature, None).exists(_.isSourceTweet)) match {
-        case (sourceTweets, nonSourceTweets) =>
-          val inReplyToTweetIds: Set[Long] =
-            nonSourceTweets
-              .filter(ReplyRetweetUtil.isEligibleReply(_)).flatMap(
-                _.features.getOrElse(InReplyToTweetIdFeature, None)).toSet
-          val (keptSourceTweets, removedSourceTweets) = sourceTweets
-            .map(_.candidate)
-            .partition(candidate => inReplyToTweetIds.contains(candidate.id))
-          (nonSourceTweets.map(_.candidate) ++ keptSourceTweets, removedSourceTweets)
-      }
-    Stitch.value(FilterResult(kept = kept, removed = removed))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter/ScoredTweetsSocialContextFilter.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter/ScoredTweetsSocialContextFilter.scala
deleted file mode 100644
index fef427a6d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/filter/ScoredTweetsSocialContextFilter.scala
+++ /dev/null
@@ -1,61 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.filter
-
-import com.twitter.home_mixer.model.HomeFeatures._
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.filter.FilterResult
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.FilterIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-
-object ScoredTweetsSocialContextFilter extends Filter[PipelineQuery, TweetCandidate] {
-
-  override val identifier: FilterIdentifier = FilterIdentifier("ScoredTweetsSocialContext")
-
-  // Tweets from candidate sources which don't need generic like/follow/topic proof
-  private val AllowedSources: Set[st.SuggestType] = Set(
-    st.SuggestType.RankedListTweet,
-    st.SuggestType.RecommendedTrendTweet,
-    st.SuggestType.MediaTweet
-  )
-
-  override def apply(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[FilterResult[TweetCandidate]] = {
-    val validTweetIds = candidates
-      .filter { candidate =>
-        candidate.features.getOrElse(InNetworkFeature, true) ||
-        candidate.features.getOrElse(SuggestTypeFeature, None).exists(AllowedSources.contains) ||
-        candidate.features.getOrElse(InReplyToTweetIdFeature, None).isDefined ||
-        hasLikedBySocialContext(candidate.features) ||
-        hasFollowedBySocialContext(candidate.features) ||
-        hasTopicSocialContext(candidate.features)
-      }.map(_.candidate.id).toSet
-
-    val (kept, removed) =
-      candidates.map(_.candidate).partition(candidate => validTweetIds.contains(candidate.id))
-
-    Stitch.value(FilterResult(kept = kept, removed = removed))
-  }
-
-  private def hasLikedBySocialContext(candidateFeatures: FeatureMap): Boolean =
-    candidateFeatures
-      .getOrElse(SGSValidLikedByUserIdsFeature, Seq.empty)
-      .exists(
-        candidateFeatures
-          .getOrElse(PerspectiveFilteredLikedByUserIdsFeature, Seq.empty)
-          .toSet.contains
-      )
-
-  private def hasFollowedBySocialContext(candidateFeatures: FeatureMap): Boolean =
-    candidateFeatures.getOrElse(SGSValidFollowedByUserIdsFeature, Seq.empty).nonEmpty
-
-  private def hasTopicSocialContext(candidateFeatures: FeatureMap): Boolean = {
-    candidateFeatures.getOrElse(TopicIdSocialContextFeature, None).isDefined &&
-    candidateFeatures.getOrElse(TopicContextFunctionalityTypeFeature, None).isDefined
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/gate/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/gate/BUILD.bazel
deleted file mode 100644
index 6d3fd9b1c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/gate/BUILD.bazel
+++ /dev/null
@@ -1,12 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/gate",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/gate/MinCachedTweetsGate.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/gate/MinCachedTweetsGate.scala
deleted file mode 100644
index bdeb33a92..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/gate/MinCachedTweetsGate.scala
+++ /dev/null
@@ -1,34 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.gate
-
-import com.twitter.home_mixer.product.scored_tweets.gate.MinCachedTweetsGate.identifierSuffix
-import com.twitter.home_mixer.util.CachedScoredTweetsHelper
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.GateIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.configapi.Param
-
-case class MinCachedTweetsGate(
-  candidatePipelineIdentifier: CandidatePipelineIdentifier,
-  minCachedTweetsParam: Param[Int])
-    extends Gate[PipelineQuery] {
-
-  override val identifier: GateIdentifier =
-    GateIdentifier(candidatePipelineIdentifier + identifierSuffix)
-
-  override def shouldContinue(query: PipelineQuery): Stitch[Boolean] = {
-    val minCachedTweets = query.params(minCachedTweetsParam)
-    val cachedScoredTweets =
-      query.features.map(CachedScoredTweetsHelper.unseenCachedScoredTweets).getOrElse(Seq.empty)
-    val numCachedTweets = cachedScoredTweets.count { tweet =>
-      tweet.candidatePipelineIdentifier.exists(
-        CandidatePipelineIdentifier(_).equals(candidatePipelineIdentifier))
-    }
-    Stitch.value(numCachedTweets < minCachedTweets)
-  }
-}
-
-object MinCachedTweetsGate {
-  val identifierSuffix = "MinCachedTweets"
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/gate/MinTimeSinceLastRequestGate.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/gate/MinTimeSinceLastRequestGate.scala
deleted file mode 100644
index 050f2ab67..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/gate/MinTimeSinceLastRequestGate.scala
+++ /dev/null
@@ -1,27 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.gate
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.model.HomeFeatures.LastNonPollingTimeFeature
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.model.common.identifier.GateIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.stitch.Stitch
-
-/**
- * Gate continues if the amount of time passed since the previous request is greater
- * than the configured amount or if the previous request time in not available
- */
-object MinTimeSinceLastRequestGate extends Gate[PipelineQuery] {
-
-  override val identifier: GateIdentifier = GateIdentifier("TimeSinceLastRequest")
-
-  private val MinTimeSinceLastRequest = 24.hours
-
-  override def shouldContinue(query: PipelineQuery): Stitch[Boolean] = Stitch.value {
-    query.features.exists { features =>
-      features
-        .getOrElse(LastNonPollingTimeFeature, None)
-        .forall(lnpt => (query.queryTime - lnpt) > MinTimeSinceLastRequest)
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/marshaller/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/marshaller/BUILD.bazel
deleted file mode 100644
index 4347c1093..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/marshaller/BUILD.bazel
+++ /dev/null
@@ -1,15 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/marshaller/response/urt",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/premarshaller",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/common",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/marshaller/ScoredTweetsResponseDomainMarshaller.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/marshaller/ScoredTweetsResponseDomainMarshaller.scala
deleted file mode 100644
index 796970bec..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/marshaller/ScoredTweetsResponseDomainMarshaller.scala
+++ /dev/null
@@ -1,22 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.marshaller
-
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsResponse
-import com.twitter.product_mixer.core.functional_component.premarshaller.DomainMarshaller
-import com.twitter.product_mixer.core.model.common.identifier.DomainMarshallerIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-
-/**
- * Creates a domain model of the Scored Tweets product response from the set of candidates selected
- */
-object ScoredTweetsResponseDomainMarshaller
-    extends DomainMarshaller[ScoredTweetsQuery, ScoredTweetsResponse] {
-
-  override val identifier: DomainMarshallerIdentifier =
-    DomainMarshallerIdentifier("ScoredTweetsResponse")
-
-  override def apply(
-    query: ScoredTweetsQuery,
-    selections: Seq[CandidateWithDetails]
-  ): ScoredTweetsResponse = ScoredTweetsResponse(scoredTweets = selections)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/marshaller/ScoredTweetsResponseTransportMarshaller.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/marshaller/ScoredTweetsResponseTransportMarshaller.scala
deleted file mode 100644
index 27486768b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/marshaller/ScoredTweetsResponseTransportMarshaller.scala
+++ /dev/null
@@ -1,70 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.marshaller
-
-import com.twitter.home_mixer.model.HomeFeatures._
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsResponse
-import com.twitter.home_mixer.{thriftscala => t}
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.functional_component.marshaller.TransportMarshaller
-import com.twitter.product_mixer.core.functional_component.marshaller.response.urt.metadata.TopicContextFunctionalityTypeMarshaller
-import com.twitter.product_mixer.core.model.common.identifier.TransportMarshallerIdentifier
-
-/**
- * Marshall the domain model into our transport (Thrift) model.
- */
-object ScoredTweetsResponseTransportMarshaller
-    extends TransportMarshaller[ScoredTweetsResponse, t.ScoredTweetsResponse] {
-
-  override val identifier: TransportMarshallerIdentifier =
-    TransportMarshallerIdentifier("ScoredTweetsResponse")
-
-  override def apply(input: ScoredTweetsResponse): t.ScoredTweetsResponse = {
-    val scoredTweets = input.scoredTweets.map { tweet =>
-      mkScoredTweet(tweet.candidateIdLong, tweet.features)
-    }
-    t.ScoredTweetsResponse(scoredTweets)
-  }
-
-  private def mkScoredTweet(tweetId: Long, features: FeatureMap): t.ScoredTweet = {
-    val topicFunctionalityType = features
-      .getOrElse(TopicContextFunctionalityTypeFeature, None)
-      .map(TopicContextFunctionalityTypeMarshaller(_))
-
-    t.ScoredTweet(
-      tweetId = tweetId,
-      authorId = features.get(AuthorIdFeature).get,
-      score = features.get(ScoreFeature),
-      suggestType = features.get(SuggestTypeFeature),
-      sourceTweetId = features.getOrElse(SourceTweetIdFeature, None),
-      sourceUserId = features.getOrElse(SourceUserIdFeature, None),
-      quotedTweetId = features.getOrElse(QuotedTweetIdFeature, None),
-      quotedUserId = features.getOrElse(QuotedUserIdFeature, None),
-      inReplyToTweetId = features.getOrElse(InReplyToTweetIdFeature, None),
-      inReplyToUserId = features.getOrElse(InReplyToUserIdFeature, None),
-      directedAtUserId = features.getOrElse(DirectedAtUserIdFeature, None),
-      inNetwork = Some(features.getOrElse(InNetworkFeature, true)),
-      sgsValidLikedByUserIds = Some(features.getOrElse(SGSValidLikedByUserIdsFeature, Seq.empty)),
-      sgsValidFollowedByUserIds =
-        Some(features.getOrElse(SGSValidFollowedByUserIdsFeature, Seq.empty)),
-      topicId = features.getOrElse(TopicIdSocialContextFeature, None),
-      topicFunctionalityType = topicFunctionalityType,
-      ancestors = Some(features.getOrElse(AncestorsFeature, Seq.empty)),
-      isReadFromCache = Some(features.getOrElse(IsReadFromCacheFeature, false)),
-      streamToKafka = Some(features.getOrElse(StreamToKafkaFeature, false)),
-      exclusiveConversationAuthorId =
-        features.getOrElse(ExclusiveConversationAuthorIdFeature, None),
-      authorMetadata = Some(
-        t.AuthorMetadata(
-          blueVerified = features.getOrElse(AuthorIsBlueVerifiedFeature, false),
-          goldVerified = features.getOrElse(AuthorIsGoldVerifiedFeature, false),
-          grayVerified = features.getOrElse(AuthorIsGrayVerifiedFeature, false),
-          legacyVerified = features.getOrElse(AuthorIsLegacyVerifiedFeature, false),
-          creator = features.getOrElse(AuthorIsCreatorFeature, false)
-        )),
-      lastScoredTimestampMs = None,
-      candidatePipelineIdentifier = None,
-      tweetUrls = None,
-      perspectiveFilteredLikedByUserIds =
-        Some(features.getOrElse(PerspectiveFilteredLikedByUserIdsFeature, Seq.empty)),
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model/BUILD.bazel
deleted file mode 100644
index 6414453db..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model/BUILD.bazel
+++ /dev/null
@@ -1,17 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/cursor",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-        "src/thrift/com/twitter/timelineservice/server/internal:thrift-scala",
-    ],
-    exports = [
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/cursor",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model/ScoredTweetsQuery.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model/ScoredTweetsQuery.scala
deleted file mode 100644
index a2eb3a466..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model/ScoredTweetsQuery.scala
+++ /dev/null
@@ -1,39 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.model
-
-import com.twitter.home_mixer.model.request.DeviceContext
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.home_mixer.model.request.HasSeenTweetIds
-import com.twitter.home_mixer.model.request.ScoredTweetsProduct
-import com.twitter.product_mixer.component_library.model.cursor.UrtOrderedCursor
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.marshalling.request._
-import com.twitter.product_mixer.core.pipeline.HasPipelineCursor
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.quality_factor.HasQualityFactorStatus
-import com.twitter.product_mixer.core.quality_factor.QualityFactorStatus
-import com.twitter.timelines.configapi.Params
-
-case class ScoredTweetsQuery(
-  override val params: Params,
-  override val clientContext: ClientContext,
-  override val pipelineCursor: Option[UrtOrderedCursor],
-  override val requestedMaxResults: Option[Int],
-  override val debugOptions: Option[DebugOptions],
-  override val features: Option[FeatureMap],
-  override val deviceContext: Option[DeviceContext],
-  override val seenTweetIds: Option[Seq[Long]],
-  override val qualityFactorStatus: Option[QualityFactorStatus])
-    extends PipelineQuery
-    with HasPipelineCursor[UrtOrderedCursor]
-    with HasDeviceContext
-    with HasSeenTweetIds
-    with HasQualityFactorStatus {
-  override val product: Product = ScoredTweetsProduct
-
-  override def withFeatureMap(features: FeatureMap): ScoredTweetsQuery =
-    copy(features = Some(features))
-
-  override def withQualityFactorStatus(
-    qualityFactorStatus: QualityFactorStatus
-  ): ScoredTweetsQuery = copy(qualityFactorStatus = Some(qualityFactorStatus))
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model/ScoredTweetsResponse.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model/ScoredTweetsResponse.scala
deleted file mode 100644
index e9bd7cd61..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model/ScoredTweetsResponse.scala
+++ /dev/null
@@ -1,6 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.model
-
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.model.marshalling.HasMarshalling
-
-case class ScoredTweetsResponse(scoredTweets: Seq[CandidateWithDetails]) extends HasMarshalling
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param/BUILD.bazel
deleted file mode 100644
index 065841642..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param/BUILD.bazel
+++ /dev/null
@@ -1,11 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "configapi/configapi-core/src/main/scala/com/twitter/timelines/configapi",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param/decider",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param/ScoredTweetsParam.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param/ScoredTweetsParam.scala
deleted file mode 100644
index 9720b9344..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param/ScoredTweetsParam.scala
+++ /dev/null
@@ -1,361 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.param
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.param.decider.DeciderKey
-import com.twitter.timelines.configapi.DurationConversion
-import com.twitter.timelines.configapi.FSBoundedParam
-import com.twitter.timelines.configapi.FSParam
-import com.twitter.timelines.configapi.HasDurationConversion
-import com.twitter.timelines.configapi.decider.BooleanDeciderParam
-import com.twitter.util.Duration
-
-object ScoredTweetsParam {
-  val SupportedClientFSName = "scored_tweets_supported_client"
-
-  object CandidatePipeline {
-    object EnableInNetworkParam
-        extends BooleanDeciderParam(DeciderKey.EnableScoredTweetsInNetworkCandidatePipeline)
-
-    object EnableTweetMixerParam
-        extends BooleanDeciderParam(DeciderKey.EnableScoredTweetsTweetMixerCandidatePipeline)
-
-    object EnableUtegParam
-        extends BooleanDeciderParam(DeciderKey.EnableScoredTweetsUtegCandidatePipeline)
-
-    object EnableFrsParam
-        extends BooleanDeciderParam(DeciderKey.EnableScoredTweetsFrsCandidatePipeline)
-
-    object EnableListsParam
-        extends BooleanDeciderParam(DeciderKey.EnableScoredTweetsListsCandidatePipeline)
-
-    object EnablePopularVideosParam
-        extends BooleanDeciderParam(DeciderKey.EnableScoredTweetsPopularVideosCandidatePipeline)
-
-    object EnableBackfillParam
-        extends BooleanDeciderParam(DeciderKey.EnableScoredTweetsBackfillCandidatePipeline)
-  }
-
-  object EnableBackfillCandidatePipelineParam
-      extends FSParam[Boolean](
-        name = "scored_tweets_enable_backfill_candidate_pipeline",
-        default = true
-      )
-
-  object QualityFactor {
-    object InNetworkMaxTweetsToScoreParam
-        extends FSBoundedParam[Int](
-          name = "scored_tweets_quality_factor_earlybird_max_tweets_to_score",
-          default = 500,
-          min = 0,
-          max = 10000
-        )
-
-    object UtegMaxTweetsToScoreParam
-        extends FSBoundedParam[Int](
-          name = "scored_tweets_quality_factor_uteg_max_tweets_to_score",
-          default = 500,
-          min = 0,
-          max = 10000
-        )
-
-    object FrsMaxTweetsToScoreParam
-        extends FSBoundedParam[Int](
-          name = "scored_tweets_quality_factor_frs_max_tweets_to_score",
-          default = 500,
-          min = 0,
-          max = 10000
-        )
-
-    object TweetMixerMaxTweetsToScoreParam
-        extends FSBoundedParam[Int](
-          name = "scored_tweets_quality_factor_tweet_mixer_max_tweets_to_score",
-          default = 500,
-          min = 0,
-          max = 10000
-        )
-
-    object ListsMaxTweetsToScoreParam
-        extends FSBoundedParam[Int](
-          name = "scored_tweets_quality_factor_lists_max_tweets_to_score",
-          default = 500,
-          min = 0,
-          max = 100
-        )
-
-    object PopularVideosMaxTweetsToScoreParam
-        extends FSBoundedParam[Int](
-          name = "scored_tweets_quality_factor_popular_videos_max_tweets_to_score",
-          default = 40,
-          min = 0,
-          max = 10000
-        )
-
-    object BackfillMaxTweetsToScoreParam
-        extends FSBoundedParam[Int](
-          name = "scored_tweets_quality_factor_backfill_max_tweets_to_score",
-          default = 500,
-          min = 0,
-          max = 10000
-        )
-  }
-
-  object ServerMaxResultsParam
-      extends FSBoundedParam[Int](
-        name = "scored_tweets_server_max_results",
-        default = 120,
-        min = 1,
-        max = 500
-      )
-
-  object MaxInNetworkResultsParam
-      extends FSBoundedParam[Int](
-        name = "scored_tweets_max_in_network_results",
-        default = 60,
-        min = 1,
-        max = 500
-      )
-
-  object MaxOutOfNetworkResultsParam
-      extends FSBoundedParam[Int](
-        name = "scored_tweets_max_out_of_network_results",
-        default = 60,
-        min = 1,
-        max = 500
-      )
-
-  object CachedScoredTweets {
-    object TTLParam
-        extends FSBoundedParam[Duration](
-          name = "scored_tweets_cached_scored_tweets_ttl_minutes",
-          default = 3.minutes,
-          min = 0.minute,
-          max = 60.minutes
-        )
-        with HasDurationConversion {
-      override val durationConversion: DurationConversion = DurationConversion.FromMinutes
-    }
-
-    object MinCachedTweetsParam
-        extends FSBoundedParam[Int](
-          name = "scored_tweets_cached_scored_tweets_min_cached_tweets",
-          default = 30,
-          min = 0,
-          max = 1000
-        )
-  }
-
-  object Scoring {
-    object HomeModelParam
-        extends FSParam[String](name = "scored_tweets_home_model", default = "Home")
-
-    object ModelWeights {
-
-      object FavParam
-          extends FSBoundedParam[Double](
-            name = "scored_tweets_model_weight_fav",
-            default = 1.0,
-            min = 0.0,
-            max = 100.0
-          )
-
-      object RetweetParam
-          extends FSBoundedParam[Double](
-            name = "scored_tweets_model_weight_retweet",
-            default = 1.0,
-            min = 0.0,
-            max = 100.0
-          )
-
-      object ReplyParam
-          extends FSBoundedParam[Double](
-            name = "scored_tweets_model_weight_reply",
-            default = 1.0,
-            min = 0.0,
-            max = 100.0
-          )
-
-      object GoodProfileClickParam
-          extends FSBoundedParam[Double](
-            name = "scored_tweets_model_weight_good_profile_click",
-            default = 1.0,
-            min = 0.0,
-            max = 1000000.0
-          )
-
-      object VideoPlayback50Param
-          extends FSBoundedParam[Double](
-            name = "scored_tweets_model_weight_video_playback50",
-            default = 1.0,
-            min = 0.0,
-            max = 100.0
-          )
-
-      object ReplyEngagedByAuthorParam
-          extends FSBoundedParam[Double](
-            name = "scored_tweets_model_weight_reply_engaged_by_author",
-            default = 1.0,
-            min = 0.0,
-            max = 200.0
-          )
-
-      object GoodClickParam
-          extends FSBoundedParam[Double](
-            name = "scored_tweets_model_weight_good_click",
-            default = 1.0,
-            min = 0.0,
-            max = 1000000.0
-          )
-
-      object GoodClickV2Param
-          extends FSBoundedParam[Double](
-            name = "scored_tweets_model_weight_good_click_v2",
-            default = 1.0,
-            min = 0.0,
-            max = 1000000.0
-          )
-
-      object TweetDetailDwellParam
-          extends FSBoundedParam[Double](
-            name = "scored_tweets_model_weight_tweet_detail_dwell",
-            default = 0.0,
-            min = 0.0,
-            max = 100.0
-          )
-
-      object ProfileDwelledParam
-          extends FSBoundedParam[Double](
-            name = "scored_tweets_model_weight_profile_dwelled",
-            default = 0.0,
-            min = 0.0,
-            max = 100.0
-          )
-
-      object BookmarkParam
-          extends FSBoundedParam[Double](
-            name = "scored_tweets_model_weight_bookmark",
-            default = 0.0,
-            min = 0.0,
-            max = 100.0
-          )
-
-      object ShareParam
-          extends FSBoundedParam[Double](
-            name = "scored_tweets_model_weight_share",
-            default = 0.0,
-            min = 0.0,
-            max = 100.0
-          )
-
-      object ShareMenuClickParam
-          extends FSBoundedParam[Double](
-            name = "scored_tweets_model_weight_share_menu_click",
-            default = 0.0,
-            min = 0.0,
-            max = 100.0
-          )
-
-      object NegativeFeedbackV2Param
-          extends FSBoundedParam[Double](
-            name = "scored_tweets_model_weight_negative_feedback_v2",
-            default = 1.0,
-            min = -1000.0,
-            max = 0.0
-          )
-
-      object ReportParam
-          extends FSBoundedParam[Double](
-            name = "scored_tweets_model_weight_report",
-            default = 1.0,
-            min = -20000.0,
-            max = 0.0
-          )
-
-      object WeakNegativeFeedbackParam
-          extends FSBoundedParam[Double](
-            name = "scored_tweets_model_weight_weak_negative_feedback",
-            default = 0.0,
-            min = -1000.0,
-            max = 0.0
-          )
-
-      object StrongNegativeFeedbackParam
-          extends FSBoundedParam[Double](
-            name = "scored_tweets_model_weight_strong_negative_feedback",
-            default = 0.0,
-            min = -1000.0,
-            max = 0.0
-          )
-    }
-  }
-
-  object EnableSimClustersSimilarityFeatureHydrationDeciderParam
-      extends BooleanDeciderParam(decider = DeciderKey.EnableSimClustersSimilarityFeatureHydration)
-
-  object CompetitorSetParam
-      extends FSParam[Set[Long]](name = "scored_tweets_competitor_list", default = Set.empty)
-
-  object CompetitorURLSeqParam
-      extends FSParam[Seq[String]](name = "scored_tweets_competitor_url_list", default = Seq.empty)
-
-  object BlueVerifiedAuthorInNetworkMultiplierParam
-      extends FSBoundedParam[Double](
-        name = "scored_tweets_blue_verified_author_in_network_multiplier",
-        default = 4.0,
-        min = 0.0,
-        max = 100.0
-      )
-
-  object BlueVerifiedAuthorOutOfNetworkMultiplierParam
-      extends FSBoundedParam[Double](
-        name = "scored_tweets_blue_verified_author_out_of_network_multiplier",
-        default = 2.0,
-        min = 0.0,
-        max = 100.0
-      )
-
-  object CreatorInNetworkMultiplierParam
-      extends FSBoundedParam[Double](
-        name = "scored_tweets_creator_in_network_multiplier",
-        default = 1.1,
-        min = 0.0,
-        max = 100.0
-      )
-
-  object CreatorOutOfNetworkMultiplierParam
-      extends FSBoundedParam[Double](
-        name = "scored_tweets_creator_out_of_network_multiplier",
-        default = 1.3,
-        min = 0.0,
-        max = 100.0
-      )
-
-  object OutOfNetworkScaleFactorParam
-      extends FSBoundedParam[Double](
-        name = "scored_tweets_out_of_network_scale_factor",
-        default = 1.0,
-        min = 0.0,
-        max = 100.0
-      )
-
-  object EnableScribeScoredCandidatesParam
-      extends FSParam[Boolean](name = "scored_tweets_enable_scribing", default = false)
-
-  object EarlybirdTensorflowModel {
-
-    object InNetworkParam
-        extends FSParam[String](
-          name = "scored_tweets_in_network_earlybird_tensorflow_model",
-          default = "timelines_recap_replica")
-
-    object FrsParam
-        extends FSParam[String](
-          name = "scored_tweets_frs_earlybird_tensorflow_model",
-          default = "timelines_rectweet_replica")
-
-    object UtegParam
-        extends FSParam[String](
-          name = "scored_tweets_uteg_earlybird_tensorflow_model",
-          default = "timelines_rectweet_replica")
-  }
-
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param/ScoredTweetsParamConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param/ScoredTweetsParamConfig.scala
deleted file mode 100644
index 10b9de49d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param/ScoredTweetsParamConfig.scala
+++ /dev/null
@@ -1,89 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.param
-
-import com.twitter.home_mixer.param.decider.DeciderKey
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam._
-import com.twitter.product_mixer.core.product.ProductParamConfig
-import com.twitter.servo.decider.DeciderKeyName
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ScoredTweetsParamConfig @Inject() () extends ProductParamConfig {
-  override val enabledDeciderKey: DeciderKeyName = DeciderKey.EnableScoredTweetsProduct
-  override val supportedClientFSName: String = SupportedClientFSName
-
-  override val booleanDeciderOverrides = Seq(
-    CandidatePipeline.EnableBackfillParam,
-    CandidatePipeline.EnableTweetMixerParam,
-    CandidatePipeline.EnableFrsParam,
-    CandidatePipeline.EnableInNetworkParam,
-    CandidatePipeline.EnableListsParam,
-    CandidatePipeline.EnablePopularVideosParam,
-    CandidatePipeline.EnableUtegParam,
-    ScoredTweetsParam.EnableSimClustersSimilarityFeatureHydrationDeciderParam
-  )
-
-  override val booleanFSOverrides = Seq(
-    EnableBackfillCandidatePipelineParam,
-    EnableScribeScoredCandidatesParam
-  )
-
-  override val boundedIntFSOverrides = Seq(
-    CachedScoredTweets.MinCachedTweetsParam,
-    MaxInNetworkResultsParam,
-    MaxOutOfNetworkResultsParam,
-    QualityFactor.BackfillMaxTweetsToScoreParam,
-    QualityFactor.TweetMixerMaxTweetsToScoreParam,
-    QualityFactor.FrsMaxTweetsToScoreParam,
-    QualityFactor.InNetworkMaxTweetsToScoreParam,
-    QualityFactor.ListsMaxTweetsToScoreParam,
-    QualityFactor.PopularVideosMaxTweetsToScoreParam,
-    QualityFactor.UtegMaxTweetsToScoreParam,
-    ServerMaxResultsParam
-  )
-
-  override val boundedDurationFSOverrides = Seq(
-    CachedScoredTweets.TTLParam
-  )
-
-  override val stringFSOverrides = Seq(
-    Scoring.HomeModelParam,
-    EarlybirdTensorflowModel.InNetworkParam,
-    EarlybirdTensorflowModel.FrsParam,
-    EarlybirdTensorflowModel.UtegParam
-  )
-
-  override val boundedDoubleFSOverrides = Seq(
-    BlueVerifiedAuthorInNetworkMultiplierParam,
-    BlueVerifiedAuthorOutOfNetworkMultiplierParam,
-    CreatorInNetworkMultiplierParam,
-    CreatorOutOfNetworkMultiplierParam,
-    OutOfNetworkScaleFactorParam,
-    // Model Weights
-    Scoring.ModelWeights.FavParam,
-    Scoring.ModelWeights.ReplyParam,
-    Scoring.ModelWeights.RetweetParam,
-    Scoring.ModelWeights.GoodClickParam,
-    Scoring.ModelWeights.GoodClickV2Param,
-    Scoring.ModelWeights.GoodProfileClickParam,
-    Scoring.ModelWeights.ReplyEngagedByAuthorParam,
-    Scoring.ModelWeights.VideoPlayback50Param,
-    Scoring.ModelWeights.ReportParam,
-    Scoring.ModelWeights.NegativeFeedbackV2Param,
-    Scoring.ModelWeights.TweetDetailDwellParam,
-    Scoring.ModelWeights.ProfileDwelledParam,
-    Scoring.ModelWeights.BookmarkParam,
-    Scoring.ModelWeights.ShareParam,
-    Scoring.ModelWeights.ShareMenuClickParam,
-    Scoring.ModelWeights.StrongNegativeFeedbackParam,
-    Scoring.ModelWeights.WeakNegativeFeedbackParam
-  )
-
-  override val longSetFSOverrides = Seq(
-    CompetitorSetParam
-  )
-
-  override val stringSeqFSOverrides = Seq(
-    CompetitorURLSeqParam
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/BUILD.bazel
deleted file mode 100644
index 15fc94f47..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/BUILD.bazel
+++ /dev/null
@@ -1,23 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util/earlybird",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/transformer",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-        "src/thrift/com/twitter/timelineranker:thrift-scala",
-        "timelineranker/common/src/main/scala/com/twitter/timelineranker/model",
-        "timelines:util",
-        "timelines/src/main/scala/com/twitter/timelines/common/model",
-        "timelines/src/main/scala/com/twitter/timelines/earlybird/common/options",
-        "timelines/src/main/scala/com/twitter/timelines/earlybird/common/utils",
-        "timelines/src/main/scala/com/twitter/timelines/model/candidate",
-        "timelineservice/common:model",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/TimelineRankerFrsQueryTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/TimelineRankerFrsQueryTransformer.scala
deleted file mode 100644
index 2592ec82e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/TimelineRankerFrsQueryTransformer.scala
+++ /dev/null
@@ -1,64 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.query_transformer
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.core_workflows.user_model.{thriftscala => um}
-import com.twitter.home_mixer.model.HomeFeatures.UserStateFeature
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.FrsSeedUserIdsFeature
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam
-import com.twitter.home_mixer.product.scored_tweets.query_transformer.TimelineRankerFrsQueryTransformer._
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.quality_factor.HasQualityFactorStatus
-import com.twitter.timelineranker.{thriftscala => t}
-import com.twitter.timelines.common.model.TweetKindOption
-import com.twitter.timelines.model.candidate.CandidateTweetSourceId
-
-object TimelineRankerFrsQueryTransformer {
-  private val DefaultSinceDuration = 24.hours
-  private val ExpandedSinceDuration = 48.hours
-  private val MaxTweetsToFetch = 100
-
-  private val tweetKindOptions: TweetKindOption.ValueSet =
-    TweetKindOption(includeOriginalTweetsAndQuotes = true)
-
-  private val UserStatesForExtendedSinceDuration: Set[um.UserState] = Set(
-    um.UserState.Light,
-    um.UserState.MediumNonTweeter,
-    um.UserState.MediumTweeter,
-    um.UserState.NearZero,
-    um.UserState.New,
-    um.UserState.VeryLight
-  )
-}
-
-case class TimelineRankerFrsQueryTransformer[
-  Query <: PipelineQuery with HasQualityFactorStatus with HasDeviceContext
-](
-  override val candidatePipelineIdentifier: CandidatePipelineIdentifier,
-  override val maxTweetsToFetch: Int = MaxTweetsToFetch)
-    extends CandidatePipelineQueryTransformer[Query, t.RecapQuery]
-    with TimelineRankerQueryTransformer[Query] {
-
-  override val candidateTweetSourceId = CandidateTweetSourceId.FrsTweet
-  override val options = tweetKindOptions
-
-  override def getTensorflowModel(query: Query): Option[String] = {
-    Some(query.params(ScoredTweetsParam.EarlybirdTensorflowModel.FrsParam))
-  }
-
-  override def seedAuthorIds(query: Query): Option[Seq[Long]] = {
-    query.features.flatMap(_.getOrElse(FrsSeedUserIdsFeature, None))
-  }
-
-  override def transform(input: Query): t.RecapQuery = {
-    val userState = input.features.get.getOrElse(UserStateFeature, None)
-
-    val sinceDuration =
-      if (userState.exists(UserStatesForExtendedSinceDuration.contains)) ExpandedSinceDuration
-      else DefaultSinceDuration
-
-    buildTimelineRankerQuery(input, sinceDuration).toThriftRecapQuery
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/TimelineRankerInNetworkQueryTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/TimelineRankerInNetworkQueryTransformer.scala
deleted file mode 100644
index 4514dc2c4..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/TimelineRankerInNetworkQueryTransformer.scala
+++ /dev/null
@@ -1,63 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.query_transformer
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.core_workflows.user_model.{thriftscala => um}
-import com.twitter.home_mixer.model.HomeFeatures.UserStateFeature
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam
-import com.twitter.home_mixer.product.scored_tweets.query_transformer.TimelineRankerInNetworkQueryTransformer._
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.quality_factor.HasQualityFactorStatus
-import com.twitter.timelineranker.{thriftscala => t}
-import com.twitter.timelines.common.model.TweetKindOption
-import com.twitter.timelines.model.candidate.CandidateTweetSourceId
-
-object TimelineRankerInNetworkQueryTransformer {
-  private val DefaultSinceDuration = 24.hours
-  private val ExpandedSinceDuration = 48.hours
-  private val MaxTweetsToFetch = 600
-
-  private val tweetKindOptions: TweetKindOption.ValueSet = TweetKindOption(
-    includeReplies = true,
-    includeRetweets = true,
-    includeOriginalTweetsAndQuotes = true,
-    includeExtendedReplies = true
-  )
-
-  private val UserStatesForExtendedSinceDuration: Set[um.UserState] = Set(
-    um.UserState.Light,
-    um.UserState.MediumNonTweeter,
-    um.UserState.MediumTweeter,
-    um.UserState.NearZero,
-    um.UserState.New,
-    um.UserState.VeryLight
-  )
-}
-
-case class TimelineRankerInNetworkQueryTransformer[
-  Query <: PipelineQuery with HasQualityFactorStatus with HasDeviceContext
-](
-  override val candidatePipelineIdentifier: CandidatePipelineIdentifier,
-  override val maxTweetsToFetch: Int = MaxTweetsToFetch)
-    extends CandidatePipelineQueryTransformer[Query, t.RecapQuery]
-    with TimelineRankerQueryTransformer[Query] {
-
-  override val candidateTweetSourceId = CandidateTweetSourceId.RecycledTweet
-  override val options = tweetKindOptions
-
-  override def getTensorflowModel(query: Query): Option[String] = {
-    Some(query.params(ScoredTweetsParam.EarlybirdTensorflowModel.InNetworkParam))
-  }
-
-  override def transform(input: Query): t.RecapQuery = {
-    val userState = input.features.get.getOrElse(UserStateFeature, None)
-
-    val sinceDuration =
-      if (userState.exists(UserStatesForExtendedSinceDuration.contains)) ExpandedSinceDuration
-      else DefaultSinceDuration
-
-    buildTimelineRankerQuery(input, sinceDuration).toThriftRecapQuery
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/TimelineRankerQueryTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/TimelineRankerQueryTransformer.scala
deleted file mode 100644
index e187a0aa0..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/TimelineRankerQueryTransformer.scala
+++ /dev/null
@@ -1,108 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.query_transformer
-
-import com.twitter.home_mixer.model.HomeFeatures.RealGraphInNetworkScoresFeature
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.home_mixer.product.scored_tweets.query_transformer.TimelineRankerQueryTransformer._
-import com.twitter.home_mixer.util.CachedScoredTweetsHelper
-import com.twitter.home_mixer.util.earlybird.EarlybirdRequestUtil
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.quality_factor.HasQualityFactorStatus
-import com.twitter.timelineranker.{model => tlr}
-import com.twitter.timelines.common.model.TweetKindOption
-import com.twitter.timelines.earlybird.common.options.EarlybirdOptions
-import com.twitter.timelines.earlybird.common.options.EarlybirdScoringModelConfig
-import com.twitter.timelines.earlybird.common.utils.SearchOperator
-import com.twitter.timelines.model.UserId
-import com.twitter.timelines.model.candidate.CandidateTweetSourceId
-import com.twitter.timelines.util.SnowflakeSortIndexHelper
-import com.twitter.util.Duration
-import com.twitter.util.Time
-
-object TimelineRankerQueryTransformer {
-
-  /**
-   * Specifies the maximum number of excluded tweet ids to include in the search index query.
-   * Earlybird's named multi term disjunction map feature supports up to 1500 tweet ids.
-   */
-  private val EarlybirdMaxExcludedTweets = 1500
-
-  /**
-   * Maximum number of query hits each earlybird shard is allowed to accumulate before
-   * early-terminating the query and reducing the hits to MaxNumEarlybirdResults.
-   */
-  private val EarlybirdMaxHits = 1000
-
-  /**
-   * Maximum number of results TLR should retrieve from each earlybird shard.
-   */
-  private val EarlybirdMaxResults = 300
-}
-
-trait TimelineRankerQueryTransformer[
-  Query <: PipelineQuery with HasQualityFactorStatus with HasDeviceContext] {
-  def maxTweetsToFetch: Int
-  def options: TweetKindOption.ValueSet = TweetKindOption.Default
-  def candidateTweetSourceId: CandidateTweetSourceId.Value
-  def utegLikedByTweetsOptions(query: Query): Option[tlr.UtegLikedByTweetsOptions] = None
-  def seedAuthorIds(query: Query): Option[Seq[Long]] = None
-  def candidatePipelineIdentifier: CandidatePipelineIdentifier
-  def earlybirdModels: Seq[EarlybirdScoringModelConfig] =
-    EarlybirdRequestUtil.EarlybirdScoringModels.UnifiedEngagementProd
-  def getTensorflowModel(query: Query): Option[String] = None
-
-  def buildTimelineRankerQuery(query: Query, sinceDuration: Duration): tlr.RecapQuery = {
-    val sinceTime: Time = sinceDuration.ago
-    val untilTime: Time = Time.now
-
-    val fromTweetIdExclusive = SnowflakeSortIndexHelper.timestampToFakeId(sinceTime)
-    val toTweetIdExclusive = SnowflakeSortIndexHelper.timestampToFakeId(untilTime)
-    val range = tlr.TweetIdRange(Some(fromTweetIdExclusive), Some(toTweetIdExclusive))
-
-    val excludedTweetIds = query.features.map { featureMap =>
-      CachedScoredTweetsHelper.tweetImpressionsAndCachedScoredTweetsInRange(
-        featureMap,
-        candidatePipelineIdentifier,
-        EarlybirdMaxExcludedTweets,
-        sinceTime,
-        untilTime)
-    }
-
-    val maxCount =
-      (query.getQualityFactorCurrentValue(candidatePipelineIdentifier) * maxTweetsToFetch).toInt
-
-    val authorScoreMap = query.features
-      .map(_.getOrElse(RealGraphInNetworkScoresFeature, Map.empty[UserId, Double]))
-      .getOrElse(Map.empty)
-
-    val deviceContext =
-      query.deviceContext.map(_.toTimelineServiceDeviceContext(query.clientContext))
-
-    val tensorflowModel = getTensorflowModel(query)
-
-    val earlyBirdOptions = EarlybirdOptions(
-      maxNumHitsPerShard = EarlybirdMaxHits,
-      maxNumResultsPerShard = EarlybirdMaxResults,
-      models = earlybirdModels,
-      authorScoreMap = authorScoreMap,
-      skipVeryRecentTweets = true,
-      tensorflowModel = tensorflowModel
-    )
-
-    tlr.RecapQuery(
-      userId = query.getRequiredUserId,
-      maxCount = Some(maxCount),
-      range = Some(range),
-      options = options,
-      searchOperator = SearchOperator.Exclude,
-      earlybirdOptions = Some(earlyBirdOptions),
-      deviceContext = deviceContext,
-      authorIds = seedAuthorIds(query),
-      excludedTweetIds = excludedTweetIds,
-      utegLikedByTweetsOptions = utegLikedByTweetsOptions(query),
-      searchClientSubId = None,
-      candidateTweetSourceId = Some(candidateTweetSourceId),
-      hydratesContentFeatures = Some(false)
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/TimelineRankerUtegQueryTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/TimelineRankerUtegQueryTransformer.scala
deleted file mode 100644
index ea051f331..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/TimelineRankerUtegQueryTransformer.scala
+++ /dev/null
@@ -1,59 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.query_transformer
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.model.HomeFeatures.RealGraphInNetworkScoresFeature
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam
-import com.twitter.home_mixer.product.scored_tweets.query_transformer.TimelineRankerUtegQueryTransformer._
-import com.twitter.home_mixer.util.earlybird.EarlybirdRequestUtil
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.quality_factor.HasQualityFactorStatus
-import com.twitter.timelineranker.{model => tlr}
-import com.twitter.timelineranker.{thriftscala => t}
-import com.twitter.timelines.common.model.TweetKindOption
-import com.twitter.timelines.earlybird.common.options.EarlybirdScoringModelConfig
-import com.twitter.timelines.model.UserId
-import com.twitter.timelines.model.candidate.CandidateTweetSourceId
-
-object TimelineRankerUtegQueryTransformer {
-  private val SinceDuration = 24.hours
-  private val MaxTweetsToFetch = 300
-  private val MaxUtegCandidates = 800
-
-  private val tweetKindOptions =
-    TweetKindOption(includeOriginalTweetsAndQuotes = true, includeReplies = true)
-
-  def utegEarlybirdModels: Seq[EarlybirdScoringModelConfig] =
-    EarlybirdRequestUtil.EarlybirdScoringModels.UnifiedEngagementRectweet
-}
-
-case class TimelineRankerUtegQueryTransformer[
-  Query <: PipelineQuery with HasQualityFactorStatus with HasDeviceContext
-](
-  override val candidatePipelineIdentifier: CandidatePipelineIdentifier,
-  override val maxTweetsToFetch: Int = MaxTweetsToFetch)
-    extends CandidatePipelineQueryTransformer[Query, t.UtegLikedByTweetsQuery]
-    with TimelineRankerQueryTransformer[Query] {
-
-  override val candidateTweetSourceId = CandidateTweetSourceId.RecommendedTweet
-  override val options = tweetKindOptions
-  override val earlybirdModels = utegEarlybirdModels
-  override def getTensorflowModel(query: Query): Option[String] = {
-    Some(query.params(ScoredTweetsParam.EarlybirdTensorflowModel.UtegParam))
-  }
-
-  override def utegLikedByTweetsOptions(input: Query): Option[tlr.UtegLikedByTweetsOptions] = Some(
-    tlr.UtegLikedByTweetsOptions(
-      utegCount = MaxUtegCandidates,
-      isInNetwork = false,
-      weightedFollowings = input.features
-        .map(_.getOrElse(RealGraphInNetworkScoresFeature, Map.empty[UserId, Double]))
-        .getOrElse(Map.empty)
-    )
-  )
-
-  override def transform(input: Query): t.UtegLikedByTweetsQuery =
-    buildTimelineRankerQuery(input, SinceDuration).toThriftUtegLikedByTweetsQuery
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/earlybird/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/earlybird/BUILD.bazel
deleted file mode 100644
index a337a328b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/earlybird/BUILD.bazel
+++ /dev/null
@@ -1,23 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util/earlybird",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/social_graph",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/transformer",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-        "src/thrift/com/twitter/search:earlybird-scala",
-        "timelines:util",
-        "timelines/src/main/scala/com/twitter/timelines/clients/relevance_search",
-        "timelines/src/main/scala/com/twitter/timelines/common/model",
-        "timelines/src/main/scala/com/twitter/timelines/earlybird/common/utils",
-        "timelines/src/main/scala/com/twitter/timelines/model/candidate",
-        "timelines/src/main/scala/com/twitter/timelines/model/types",
-        "timelines/src/main/scala/com/twitter/timelines/util/stats",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/earlybird/EarlybirdFrsQueryTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/earlybird/EarlybirdFrsQueryTransformer.scala
deleted file mode 100644
index 9b2ac341e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/earlybird/EarlybirdFrsQueryTransformer.scala
+++ /dev/null
@@ -1,41 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.query_transformer.earlybird
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.FrsSeedUserIdsFeature
-import com.twitter.home_mixer.product.scored_tweets.query_transformer.earlybird.EarlybirdFrsQueryTransformer._
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.quality_factor.HasQualityFactorStatus
-import com.twitter.search.earlybird.{thriftscala => eb}
-import com.twitter.timelines.common.model.TweetKindOption
-
-object EarlybirdFrsQueryTransformer {
-  private val SinceDuration = 24.hours
-  private val MaxTweetsToFetch = 100
-  private val TensorflowModel = Some("timelines_rectweet_replica")
-
-  private val TweetKindOptions: TweetKindOption.ValueSet =
-    TweetKindOption(includeOriginalTweetsAndQuotes = true)
-}
-
-case class EarlybirdFrsQueryTransformer[
-  Query <: PipelineQuery with HasQualityFactorStatus with HasDeviceContext
-](
-  candidatePipelineIdentifier: CandidatePipelineIdentifier,
-  override val clientId: Option[String])
-    extends CandidatePipelineQueryTransformer[Query, eb.EarlybirdRequest]
-    with EarlybirdQueryTransformer[Query] {
-
-  override val tweetKindOptions: TweetKindOption.ValueSet = TweetKindOptions
-  override val maxTweetsToFetch: Int = MaxTweetsToFetch
-  override val tensorflowModel: Option[String] = TensorflowModel
-
-  override def transform(query: Query): eb.EarlybirdRequest = {
-    val seedUserIds = query.features
-      .flatMap(_.getOrElse(FrsSeedUserIdsFeature, None))
-      .getOrElse(Seq.empty).toSet
-    buildEarlybirdQuery(query, SinceDuration, seedUserIds)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/earlybird/EarlybirdInNetworkQueryTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/earlybird/EarlybirdInNetworkQueryTransformer.scala
deleted file mode 100644
index 5c5464b8b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/earlybird/EarlybirdInNetworkQueryTransformer.scala
+++ /dev/null
@@ -1,68 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.query_transformer.earlybird
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.core_workflows.user_model.{thriftscala => um}
-import com.twitter.home_mixer.model.HomeFeatures.UserStateFeature
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.home_mixer.product.scored_tweets.query_transformer.earlybird.EarlybirdInNetworkQueryTransformer._
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.SGSFollowedUsersFeature
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.quality_factor.HasQualityFactorStatus
-import com.twitter.search.earlybird.{thriftscala => eb}
-import com.twitter.timelines.common.model.TweetKindOption
-
-object EarlybirdInNetworkQueryTransformer {
-  private val DefaultSinceDuration = 24.hours
-  private val ExpandedSinceDuration = 48.hours
-  private val MaxTweetsToFetch = 600
-  private val TensorflowModel = Some("timelines_recap_replica")
-
-  private val TweetKindOptions: TweetKindOption.ValueSet = TweetKindOption(
-    includeReplies = true,
-    includeRetweets = true,
-    includeOriginalTweetsAndQuotes = true,
-    includeExtendedReplies = true
-  )
-
-  private val UserStatesForExtendedSinceDuration: Set[um.UserState] = Set(
-    um.UserState.Light,
-    um.UserState.MediumNonTweeter,
-    um.UserState.MediumTweeter,
-    um.UserState.NearZero,
-    um.UserState.New,
-    um.UserState.VeryLight
-  )
-}
-
-case class EarlybirdInNetworkQueryTransformer[
-  Query <: PipelineQuery with HasQualityFactorStatus with HasDeviceContext
-](
-  candidatePipelineIdentifier: CandidatePipelineIdentifier,
-  override val clientId: Option[String])
-    extends CandidatePipelineQueryTransformer[Query, eb.EarlybirdRequest]
-    with EarlybirdQueryTransformer[Query] {
-
-  override val tweetKindOptions: TweetKindOption.ValueSet = TweetKindOptions
-  override val maxTweetsToFetch: Int = MaxTweetsToFetch
-  override val tensorflowModel: Option[String] = TensorflowModel
-
-  override def transform(query: Query): eb.EarlybirdRequest = {
-
-    val userState = query.features.get.getOrElse(UserStateFeature, None)
-
-    val sinceDuration =
-      if (userState.exists(UserStatesForExtendedSinceDuration.contains)) ExpandedSinceDuration
-      else DefaultSinceDuration
-
-    val followedUserIds =
-      query.features
-        .map(
-          _.getOrElse(
-            SGSFollowedUsersFeature,
-            Seq.empty)).toSeq.flatten.toSet + query.getRequiredUserId
-
-    buildEarlybirdQuery(query, sinceDuration, followedUserIds)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/earlybird/EarlybirdQueryTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/earlybird/EarlybirdQueryTransformer.scala
deleted file mode 100644
index 0e51c54ea..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/query_transformer/earlybird/EarlybirdQueryTransformer.scala
+++ /dev/null
@@ -1,70 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.query_transformer.earlybird
-
-import com.twitter.home_mixer.model.HomeFeatures.RealGraphInNetworkScoresFeature
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.home_mixer.util.CachedScoredTweetsHelper
-import com.twitter.home_mixer.util.earlybird.EarlybirdRequestUtil
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.quality_factor.HasQualityFactorStatus
-import com.twitter.search.earlybird.{thriftscala => eb}
-import com.twitter.timelines.clients.relevance_search.SearchClient.TweetTypes
-import com.twitter.timelines.common.model.TweetKindOption
-import com.twitter.timelines.util.SnowflakeSortIndexHelper
-import com.twitter.util.Duration
-import com.twitter.util.Time
-
-trait EarlybirdQueryTransformer[
-  Query <: PipelineQuery with HasQualityFactorStatus with HasDeviceContext] {
-
-  def candidatePipelineIdentifier: CandidatePipelineIdentifier
-  def clientId: Option[String] = None
-  def maxTweetsToFetch: Int = 100
-  def tweetKindOptions: TweetKindOption.ValueSet
-  def tensorflowModel: Option[String] = None
-
-  private val EarlybirdMaxExcludedTweets = 1500
-
-  def buildEarlybirdQuery(
-    query: Query,
-    sinceDuration: Duration,
-    followedUserIds: Set[Long] = Set.empty
-  ): eb.EarlybirdRequest = {
-    val sinceTime: Time = sinceDuration.ago
-    val untilTime: Time = Time.now
-
-    val fromTweetIdExclusive = SnowflakeSortIndexHelper.timestampToFakeId(sinceTime)
-    val toTweetIdExclusive = SnowflakeSortIndexHelper.timestampToFakeId(untilTime)
-
-    val excludedTweetIds = query.features.map { featureMap =>
-      CachedScoredTweetsHelper.tweetImpressionsAndCachedScoredTweetsInRange(
-        featureMap,
-        candidatePipelineIdentifier,
-        EarlybirdMaxExcludedTweets,
-        sinceTime,
-        untilTime)
-    }
-
-    val maxCount =
-      (query.getQualityFactorCurrentValue(candidatePipelineIdentifier) * maxTweetsToFetch).toInt
-
-    val authorScoreMap = query.features
-      .map(_.getOrElse(RealGraphInNetworkScoresFeature, Map.empty[Long, Double]))
-      .getOrElse(Map.empty)
-
-    EarlybirdRequestUtil.getTweetsRequest(
-      userId = Some(query.getRequiredUserId),
-      clientId = clientId,
-      skipVeryRecentTweets = true,
-      followedUserIds = followedUserIds,
-      retweetsMutedUserIds = Set.empty,
-      beforeTweetIdExclusive = Some(toTweetIdExclusive),
-      afterTweetIdExclusive = Some(fromTweetIdExclusive),
-      excludedTweetIds = excludedTweetIds.map(_.toSet),
-      maxCount = maxCount,
-      tweetTypes = TweetTypes.fromTweetKindOption(tweetKindOptions),
-      authorScoreMap = Some(authorScoreMap),
-      tensorflowModel = tensorflowModel
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/BUILD.bazel
deleted file mode 100644
index 30774b91f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/BUILD.bazel
+++ /dev/null
@@ -1,16 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    dependencies = [
-        "explore/explore-ranker/thrift/src/main/thrift:thrift-scala",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/content",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/transformer",
-        "src/thrift/com/twitter/timelineranker:thrift-scala",
-        "topic-social-proof/server/src/main/thrift:thrift-scala",
-        "tweet-mixer/thrift/src/main/thrift:thrift-scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/CachedScoredTweetsResponseFeatureTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/CachedScoredTweetsResponseFeatureTransformer.scala
deleted file mode 100644
index 0fbe7a438..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/CachedScoredTweetsResponseFeatureTransformer.scala
+++ /dev/null
@@ -1,119 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.response_transformer
-
-import com.twitter.home_mixer.marshaller.timelines.TopicContextFunctionalityTypeUnmarshaller
-import com.twitter.home_mixer.model.HomeFeatures.AncestorsFeature
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIsBlueVerifiedFeature
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIsCreatorFeature
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIsGoldVerifiedFeature
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIsGrayVerifiedFeature
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIsLegacyVerifiedFeature
-import com.twitter.home_mixer.model.HomeFeatures.CachedCandidatePipelineIdentifierFeature
-import com.twitter.home_mixer.model.HomeFeatures.DirectedAtUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.ExclusiveConversationAuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsReadFromCacheFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.LastScoredTimestampMsFeature
-import com.twitter.home_mixer.model.HomeFeatures.PerspectiveFilteredLikedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SGSValidFollowedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.SGSValidLikedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.ScoreFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.StreamToKafkaFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.home_mixer.model.HomeFeatures.TopicContextFunctionalityTypeFeature
-import com.twitter.home_mixer.model.HomeFeatures.TopicIdSocialContextFeature
-import com.twitter.home_mixer.model.HomeFeatures.TweetUrlsFeature
-import com.twitter.home_mixer.model.HomeFeatures.WeightedModelScoreFeature
-import com.twitter.home_mixer.{thriftscala => hmt}
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-
-object CachedScoredTweetsResponseFeatureTransformer
-    extends CandidateFeatureTransformer[hmt.ScoredTweet] {
-
-  override val identifier: TransformerIdentifier =
-    TransformerIdentifier("CachedScoredTweetsResponse")
-
-  override val features: Set[Feature[_, _]] = Set(
-    AncestorsFeature,
-    AuthorIdFeature,
-    AuthorIsBlueVerifiedFeature,
-    AuthorIsCreatorFeature,
-    AuthorIsGoldVerifiedFeature,
-    AuthorIsGrayVerifiedFeature,
-    AuthorIsLegacyVerifiedFeature,
-    CachedCandidatePipelineIdentifierFeature,
-    DirectedAtUserIdFeature,
-    ExclusiveConversationAuthorIdFeature,
-    InNetworkFeature,
-    InReplyToTweetIdFeature,
-    InReplyToUserIdFeature,
-    IsReadFromCacheFeature,
-    IsRetweetFeature,
-    LastScoredTimestampMsFeature,
-    PerspectiveFilteredLikedByUserIdsFeature,
-    QuotedTweetIdFeature,
-    QuotedUserIdFeature,
-    SGSValidFollowedByUserIdsFeature,
-    SGSValidLikedByUserIdsFeature,
-    ScoreFeature,
-    SourceTweetIdFeature,
-    SourceUserIdFeature,
-    StreamToKafkaFeature,
-    SuggestTypeFeature,
-    TopicContextFunctionalityTypeFeature,
-    TopicIdSocialContextFeature,
-    TweetUrlsFeature,
-    WeightedModelScoreFeature
-  )
-
-  override def transform(candidate: hmt.ScoredTweet): FeatureMap =
-    FeatureMapBuilder()
-      .add(AncestorsFeature, candidate.ancestors.getOrElse(Seq.empty))
-      .add(AuthorIdFeature, Some(candidate.authorId))
-      .add(AuthorIsBlueVerifiedFeature, candidate.authorMetadata.exists(_.blueVerified))
-      .add(AuthorIsGoldVerifiedFeature, candidate.authorMetadata.exists(_.goldVerified))
-      .add(AuthorIsGrayVerifiedFeature, candidate.authorMetadata.exists(_.grayVerified))
-      .add(AuthorIsLegacyVerifiedFeature, candidate.authorMetadata.exists(_.legacyVerified))
-      .add(AuthorIsCreatorFeature, candidate.authorMetadata.exists(_.creator))
-      .add(CachedCandidatePipelineIdentifierFeature, candidate.candidatePipelineIdentifier)
-      .add(DirectedAtUserIdFeature, candidate.directedAtUserId)
-      .add(ExclusiveConversationAuthorIdFeature, candidate.exclusiveConversationAuthorId)
-      .add(InNetworkFeature, candidate.inNetwork.getOrElse(true))
-      .add(InReplyToTweetIdFeature, candidate.inReplyToTweetId)
-      .add(InReplyToUserIdFeature, candidate.inReplyToUserId)
-      .add(IsReadFromCacheFeature, true)
-      .add(IsRetweetFeature, candidate.sourceTweetId.isDefined)
-      .add(LastScoredTimestampMsFeature, candidate.lastScoredTimestampMs)
-      .add(
-        PerspectiveFilteredLikedByUserIdsFeature,
-        candidate.perspectiveFilteredLikedByUserIds.getOrElse(Seq.empty))
-      .add(QuotedTweetIdFeature, candidate.quotedTweetId)
-      .add(QuotedUserIdFeature, candidate.quotedUserId)
-      .add(ScoreFeature, candidate.score)
-      .add(SGSValidLikedByUserIdsFeature, candidate.sgsValidLikedByUserIds.getOrElse(Seq.empty))
-      .add(
-        SGSValidFollowedByUserIdsFeature,
-        candidate.sgsValidFollowedByUserIds.getOrElse(Seq.empty))
-      .add(SourceTweetIdFeature, candidate.sourceTweetId)
-      .add(SourceUserIdFeature, candidate.sourceUserId)
-      .add(StreamToKafkaFeature, false)
-      .add(SuggestTypeFeature, candidate.suggestType)
-      .add(
-        TopicContextFunctionalityTypeFeature,
-        candidate.topicFunctionalityType.map(TopicContextFunctionalityTypeUnmarshaller(_)))
-      .add(TopicIdSocialContextFeature, candidate.topicId)
-      .add(TweetUrlsFeature, candidate.tweetUrls.getOrElse(Seq.empty))
-      .add(WeightedModelScoreFeature, candidate.score)
-      .build()
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsBackfillResponseFeatureTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsBackfillResponseFeatureTransformer.scala
deleted file mode 100644
index 806c0d11d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsBackfillResponseFeatureTransformer.scala
+++ /dev/null
@@ -1,30 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.response_transformer
-
-import com.twitter.home_mixer.model.HomeFeatures.CandidateSourceIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.FromInNetworkSourceFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.timelineservice.suggests.logging.candidate_tweet_source_id.{thriftscala => cts}
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-
-object ScoredTweetsBackfillResponseFeatureTransformer extends CandidateFeatureTransformer[Long] {
-
-  override val identifier: TransformerIdentifier =
-    TransformerIdentifier("ScoredTweetsBackfillResponse")
-
-  override val features: Set[Feature[_, _]] = Set(
-    CandidateSourceIdFeature,
-    FromInNetworkSourceFeature,
-    SuggestTypeFeature
-  )
-
-  override def transform(candidate: Long): FeatureMap = FeatureMapBuilder()
-    .add(CandidateSourceIdFeature, Some(cts.CandidateTweetSourceId.BackfillOrganicTweet))
-    .add(FromInNetworkSourceFeature, true)
-    .add(SuggestTypeFeature, Some(st.SuggestType.RankedOrganicTweet))
-    .build()
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsFrsResponseFeatureTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsFrsResponseFeatureTransformer.scala
deleted file mode 100644
index 077dccf24..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsFrsResponseFeatureTransformer.scala
+++ /dev/null
@@ -1,31 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.response_transformer
-
-import com.twitter.home_mixer.model.HomeFeatures.CandidateSourceIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.timelineranker.{thriftscala => tlr}
-import com.twitter.timelineservice.suggests.logging.candidate_tweet_source_id.{thriftscala => cts}
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-
-object ScoredTweetsFrsResponseFeatureTransformer
-    extends CandidateFeatureTransformer[tlr.CandidateTweet] {
-
-  override val identifier: TransformerIdentifier = TransformerIdentifier("ScoredTweetsFrsResponse")
-
-  override val features: Set[Feature[_, _]] = TimelineRankerResponseTransformer.features
-
-  override def transform(candidate: tlr.CandidateTweet): FeatureMap = {
-    val baseFeatures = TimelineRankerResponseTransformer.transform(candidate)
-
-    val features = FeatureMapBuilder()
-      .add(CandidateSourceIdFeature, Some(cts.CandidateTweetSourceId.FrsTweet))
-      .add(SuggestTypeFeature, Some(st.SuggestType.FrsTweet))
-      .build()
-
-    baseFeatures ++ features
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsInNetworkResponseFeatureTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsInNetworkResponseFeatureTransformer.scala
deleted file mode 100644
index d7d23bc98..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsInNetworkResponseFeatureTransformer.scala
+++ /dev/null
@@ -1,34 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.response_transformer
-
-import com.twitter.home_mixer.model.HomeFeatures.CandidateSourceIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.FromInNetworkSourceFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.timelineranker.{thriftscala => tlr}
-import com.twitter.timelineservice.suggests.logging.candidate_tweet_source_id.{thriftscala => cts}
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-
-object ScoredTweetsInNetworkResponseFeatureTransformer
-    extends CandidateFeatureTransformer[tlr.CandidateTweet] {
-
-  override val identifier: TransformerIdentifier =
-    TransformerIdentifier("ScoredTweetsInNetworkResponse")
-
-  override val features: Set[Feature[_, _]] = TimelineRankerResponseTransformer.features
-
-  override def transform(candidate: tlr.CandidateTweet): FeatureMap = {
-    val baseFeatures = TimelineRankerResponseTransformer.transform(candidate)
-
-    val features = FeatureMapBuilder()
-      .add(CandidateSourceIdFeature, Some(cts.CandidateTweetSourceId.RecycledTweet))
-      .add(FromInNetworkSourceFeature, true)
-      .add(SuggestTypeFeature, Some(st.SuggestType.RankedTimelineTweet))
-      .build()
-
-    baseFeatures ++ features
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsListsResponseFeatureTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsListsResponseFeatureTransformer.scala
deleted file mode 100644
index 6a48e84c8..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsListsResponseFeatureTransformer.scala
+++ /dev/null
@@ -1,45 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.response_transformer
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.CandidateSourceIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.FromInNetworkSourceFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.timelineservice.{thriftscala => t}
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-import com.twitter.timelineservice.suggests.logging.candidate_tweet_source_id.{thriftscala => cts}
-
-object ScoredTweetsListsResponseFeatureTransformer extends CandidateFeatureTransformer[t.Tweet] {
-
-  override val identifier: TransformerIdentifier =
-    TransformerIdentifier("ScoredTweetsListsResponse")
-
-  override val features: Set[Feature[_, _]] = Set(
-    AuthorIdFeature,
-    CandidateSourceIdFeature,
-    FromInNetworkSourceFeature,
-    IsRetweetFeature,
-    SuggestTypeFeature,
-    SourceTweetIdFeature,
-    SourceUserIdFeature,
-  )
-
-  override def transform(candidate: t.Tweet): FeatureMap = {
-    FeatureMapBuilder()
-      .add(AuthorIdFeature, candidate.userId)
-      .add(CandidateSourceIdFeature, Some(cts.CandidateTweetSourceId.ListTweet))
-      .add(FromInNetworkSourceFeature, false)
-      .add(IsRetweetFeature, candidate.sourceStatusId.isDefined)
-      .add(SuggestTypeFeature, Some(st.SuggestType.RankedListTweet))
-      .add(SourceTweetIdFeature, candidate.sourceStatusId)
-      .add(SourceUserIdFeature, candidate.sourceUserId)
-      .build()
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsPopularVideosResponseFeatureTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsPopularVideosResponseFeatureTransformer.scala
deleted file mode 100644
index 6657e6f5c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsPopularVideosResponseFeatureTransformer.scala
+++ /dev/null
@@ -1,46 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.response_transformer
-
-import com.twitter.explore_ranker.{thriftscala => ert}
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.CandidateSourceIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.FromInNetworkSourceFeature
-import com.twitter.home_mixer.model.HomeFeatures.HasVideoFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRandomTweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.StreamToKafkaFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.timelineservice.suggests.logging.candidate_tweet_source_id.{thriftscala => cts}
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-
-object ScoredTweetsPopularVideosResponseFeatureTransformer
-    extends CandidateFeatureTransformer[ert.ExploreTweetRecommendation] {
-
-  override val identifier: TransformerIdentifier =
-    TransformerIdentifier("ScoredTweetsPopularVideosResponse")
-
-  override val features: Set[Feature[_, _]] = Set(
-    AuthorIdFeature,
-    CandidateSourceIdFeature,
-    FromInNetworkSourceFeature,
-    HasVideoFeature,
-    IsRandomTweetFeature,
-    StreamToKafkaFeature,
-    SuggestTypeFeature
-  )
-
-  override def transform(candidate: ert.ExploreTweetRecommendation): FeatureMap = {
-    FeatureMapBuilder()
-      .add(AuthorIdFeature, candidate.authorId)
-      .add(CandidateSourceIdFeature, Some(cts.CandidateTweetSourceId.MediaTweet))
-      .add(FromInNetworkSourceFeature, false)
-      .add(HasVideoFeature, candidate.mediaType.contains(ert.MediaType.Video))
-      .add(IsRandomTweetFeature, false)
-      .add(StreamToKafkaFeature, true)
-      .add(SuggestTypeFeature, Some(st.SuggestType.MediaTweet))
-      .build()
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsTweetMixerResponseFeatureTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsTweetMixerResponseFeatureTransformer.scala
deleted file mode 100644
index 4312b5104..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsTweetMixerResponseFeatureTransformer.scala
+++ /dev/null
@@ -1,52 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.response_transformer
-
-import com.twitter.tweet_mixer.{thriftscala => tmt}
-import com.twitter.home_mixer.model.HomeFeatures._
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.timelineservice.suggests.logging.candidate_tweet_source_id.{thriftscala => cts}
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-import com.twitter.tsp.{thriftscala => tsp}
-
-object ScoredTweetsTweetMixerResponseFeatureTransformer
-    extends CandidateFeatureTransformer[tmt.TweetResult] {
-
-  override val identifier: TransformerIdentifier =
-    TransformerIdentifier("ScoredTweetsTweetMixerResponse")
-
-  override val features: Set[Feature[_, _]] = Set(
-    CandidateSourceIdFeature,
-    FromInNetworkSourceFeature,
-    IsRandomTweetFeature,
-    StreamToKafkaFeature,
-    SuggestTypeFeature,
-    TSPMetricTagFeature
-  )
-
-  override def transform(candidate: tmt.TweetResult): FeatureMap = {
-    val tweetMixerMetricTags = candidate.metricTags.getOrElse(Seq.empty)
-    val tspMetricTag = tweetMixerMetricTags
-      .map(TweetMixerMetricTagToTspMetricTag)
-      .filter(_.nonEmpty).map(_.get).toSet
-
-    FeatureMapBuilder()
-      .add(CandidateSourceIdFeature, Some(cts.CandidateTweetSourceId.Simcluster))
-      .add(FromInNetworkSourceFeature, false)
-      .add(IsRandomTweetFeature, false)
-      .add(StreamToKafkaFeature, true)
-      .add(SuggestTypeFeature, Some(st.SuggestType.ScTweet))
-      .add(TSPMetricTagFeature, tspMetricTag)
-      .build()
-  }
-
-  private def TweetMixerMetricTagToTspMetricTag(
-    tweetMixerMetricTag: tmt.MetricTag
-  ): Option[tsp.MetricTag] = tweetMixerMetricTag match {
-    case tmt.MetricTag.TweetFavorite => Some(tsp.MetricTag.TweetFavorite)
-    case tmt.MetricTag.Retweet => Some(tsp.MetricTag.Retweet)
-    case _ => None
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsUtegResponseFeatureTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsUtegResponseFeatureTransformer.scala
deleted file mode 100644
index e7bd61b2b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/ScoredTweetsUtegResponseFeatureTransformer.scala
+++ /dev/null
@@ -1,31 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.response_transformer
-
-import com.twitter.home_mixer.model.HomeFeatures.CandidateSourceIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.timelineranker.{thriftscala => tlr}
-import com.twitter.timelineservice.suggests.logging.candidate_tweet_source_id.{thriftscala => cts}
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-
-object ScoredTweetsUtegResponseFeatureTransformer
-    extends CandidateFeatureTransformer[tlr.CandidateTweet] {
-
-  override val identifier: TransformerIdentifier = TransformerIdentifier("ScoredTweetsUtegResponse")
-
-  override val features: Set[Feature[_, _]] = TimelineRankerResponseTransformer.features
-
-  override def transform(candidate: tlr.CandidateTweet): FeatureMap = {
-    val baseFeatures = TimelineRankerResponseTransformer.transform(candidate)
-
-    val features = FeatureMapBuilder()
-      .add(CandidateSourceIdFeature, Some(cts.CandidateTweetSourceId.RecommendedTweet))
-      .add(SuggestTypeFeature, Some(st.SuggestType.ActivityTweet))
-      .build()
-
-    baseFeatures ++ features
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/TimelineRankerResponseTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/TimelineRankerResponseTransformer.scala
deleted file mode 100644
index a261b2fc2..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/TimelineRankerResponseTransformer.scala
+++ /dev/null
@@ -1,91 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.response_transformer
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.CandidateSourceIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.DirectedAtUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.EarlybirdFeature
-import com.twitter.home_mixer.model.HomeFeatures.EarlybirdScoreFeature
-import com.twitter.home_mixer.model.HomeFeatures.ExclusiveConversationAuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.FromInNetworkSourceFeature
-import com.twitter.home_mixer.model.HomeFeatures.HasImageFeature
-import com.twitter.home_mixer.model.HomeFeatures.HasVideoFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRandomTweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.MentionScreenNameFeature
-import com.twitter.home_mixer.model.HomeFeatures.MentionUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.StreamToKafkaFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.home_mixer.model.HomeFeatures.TweetUrlsFeature
-import com.twitter.home_mixer.util.tweetypie.content.TweetMediaFeaturesExtractor
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.timelineranker.{thriftscala => tlr}
-
-object TimelineRankerResponseTransformer {
-
-  val features: Set[Feature[_, _]] = Set(
-    AuthorIdFeature,
-    CandidateSourceIdFeature,
-    DirectedAtUserIdFeature,
-    EarlybirdFeature,
-    EarlybirdScoreFeature,
-    ExclusiveConversationAuthorIdFeature,
-    FromInNetworkSourceFeature,
-    HasImageFeature,
-    HasVideoFeature,
-    InReplyToTweetIdFeature,
-    InReplyToUserIdFeature,
-    IsRandomTweetFeature,
-    IsRetweetFeature,
-    MentionScreenNameFeature,
-    MentionUserIdFeature,
-    StreamToKafkaFeature,
-    QuotedTweetIdFeature,
-    QuotedUserIdFeature,
-    SourceTweetIdFeature,
-    SourceUserIdFeature,
-    SuggestTypeFeature,
-    TweetUrlsFeature
-  )
-
-  def transform(candidate: tlr.CandidateTweet): FeatureMap = {
-    val tweet = candidate.tweet
-    val quotedTweet = tweet.filter(_.quotedTweet.exists(_.tweetId != 0)).flatMap(_.quotedTweet)
-    val mentions = tweet.flatMap(_.mentions).getOrElse(Seq.empty)
-    val coreData = tweet.flatMap(_.coreData)
-    val share = coreData.flatMap(_.share)
-    val reply = coreData.flatMap(_.reply)
-
-    FeatureMapBuilder()
-      .add(AuthorIdFeature, coreData.map(_.userId))
-      .add(DirectedAtUserIdFeature, coreData.flatMap(_.directedAtUser.map(_.userId)))
-      .add(EarlybirdFeature, candidate.features)
-      .add(EarlybirdScoreFeature, candidate.features.map(_.earlybirdScore))
-      .add(
-        ExclusiveConversationAuthorIdFeature,
-        tweet.flatMap(_.exclusiveTweetControl.map(_.conversationAuthorId)))
-      .add(FromInNetworkSourceFeature, false)
-      .add(HasImageFeature, tweet.exists(TweetMediaFeaturesExtractor.hasImage))
-      .add(HasVideoFeature, tweet.exists(TweetMediaFeaturesExtractor.hasVideo))
-      .add(InReplyToTweetIdFeature, reply.flatMap(_.inReplyToStatusId))
-      .add(InReplyToUserIdFeature, reply.map(_.inReplyToUserId))
-      .add(IsRandomTweetFeature, candidate.features.exists(_.isRandomTweet.getOrElse(false)))
-      .add(IsRetweetFeature, share.isDefined)
-      .add(MentionScreenNameFeature, mentions.map(_.screenName))
-      .add(MentionUserIdFeature, mentions.flatMap(_.userId))
-      .add(StreamToKafkaFeature, true)
-      .add(QuotedTweetIdFeature, quotedTweet.map(_.tweetId))
-      .add(QuotedUserIdFeature, quotedTweet.map(_.userId))
-      .add(SourceTweetIdFeature, share.map(_.sourceStatusId))
-      .add(SourceUserIdFeature, share.map(_.sourceUserId))
-      .add(TweetUrlsFeature, candidate.features.flatMap(_.urlsList).getOrElse(Seq.empty))
-      .build()
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/earlybird/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/earlybird/BUILD.bazel
deleted file mode 100644
index 81cf19e9b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/earlybird/BUILD.bazel
+++ /dev/null
@@ -1,13 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util/earlybird",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/content",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/transformer",
-        "src/thrift/com/twitter/search:earlybird-scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/earlybird/EarlybirdResponseTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/earlybird/EarlybirdResponseTransformer.scala
deleted file mode 100644
index f0b1b59b1..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/earlybird/EarlybirdResponseTransformer.scala
+++ /dev/null
@@ -1,92 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.response_transformer.earlybird
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.CandidateSourceIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.DirectedAtUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.EarlybirdScoreFeature
-import com.twitter.home_mixer.model.HomeFeatures.EarlybirdSearchResultFeature
-import com.twitter.home_mixer.model.HomeFeatures.ExclusiveConversationAuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.FromInNetworkSourceFeature
-import com.twitter.home_mixer.model.HomeFeatures.HasImageFeature
-import com.twitter.home_mixer.model.HomeFeatures.HasVideoFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRandomTweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.MentionScreenNameFeature
-import com.twitter.home_mixer.model.HomeFeatures.MentionUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.StreamToKafkaFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.home_mixer.model.HomeFeatures.TweetUrlsFeature
-import com.twitter.home_mixer.util.tweetypie.content.TweetMediaFeaturesExtractor
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.search.earlybird.{thriftscala => eb}
-
-object EarlybirdResponseTransformer {
-
-  val features: Set[Feature[_, _]] = Set(
-    AuthorIdFeature,
-    CandidateSourceIdFeature,
-    DirectedAtUserIdFeature,
-    EarlybirdScoreFeature,
-    EarlybirdSearchResultFeature,
-    ExclusiveConversationAuthorIdFeature,
-    FromInNetworkSourceFeature,
-    HasImageFeature,
-    HasVideoFeature,
-    InReplyToTweetIdFeature,
-    InReplyToUserIdFeature,
-    IsRandomTweetFeature,
-    IsRetweetFeature,
-    MentionScreenNameFeature,
-    MentionUserIdFeature,
-    StreamToKafkaFeature,
-    QuotedTweetIdFeature,
-    QuotedUserIdFeature,
-    SourceTweetIdFeature,
-    SourceUserIdFeature,
-    SuggestTypeFeature,
-    TweetUrlsFeature
-  )
-
-  def transform(candidate: eb.ThriftSearchResult): FeatureMap = {
-    val tweet = candidate.tweetypieTweet
-    val quotedTweet = tweet.flatMap(_.quotedTweet)
-    val mentions = tweet.flatMap(_.mentions).getOrElse(Seq.empty)
-    val coreData = tweet.flatMap(_.coreData)
-    val share = coreData.flatMap(_.share)
-    val reply = coreData.flatMap(_.reply)
-    FeatureMapBuilder()
-      .add(AuthorIdFeature, coreData.map(_.userId))
-      .add(DirectedAtUserIdFeature, coreData.flatMap(_.directedAtUser.map(_.userId)))
-      .add(EarlybirdSearchResultFeature, Some(candidate))
-      .add(EarlybirdScoreFeature, candidate.metadata.flatMap(_.score))
-      .add(
-        ExclusiveConversationAuthorIdFeature,
-        tweet.flatMap(_.exclusiveTweetControl.map(_.conversationAuthorId)))
-      .add(FromInNetworkSourceFeature, false)
-      .add(HasImageFeature, tweet.exists(TweetMediaFeaturesExtractor.hasImage))
-      .add(HasVideoFeature, tweet.exists(TweetMediaFeaturesExtractor.hasVideo))
-      .add(InReplyToTweetIdFeature, reply.flatMap(_.inReplyToStatusId))
-      .add(InReplyToUserIdFeature, reply.map(_.inReplyToUserId))
-      .add(IsRandomTweetFeature, candidate.tweetFeatures.exists(_.isRandomTweet.getOrElse(false)))
-      .add(IsRetweetFeature, share.isDefined)
-      .add(MentionScreenNameFeature, mentions.map(_.screenName))
-      .add(MentionUserIdFeature, mentions.flatMap(_.userId))
-      .add(StreamToKafkaFeature, true)
-      .add(QuotedTweetIdFeature, quotedTweet.map(_.tweetId))
-      .add(QuotedUserIdFeature, quotedTweet.map(_.userId))
-      .add(SourceTweetIdFeature, share.map(_.sourceStatusId))
-      .add(SourceUserIdFeature, share.map(_.sourceUserId))
-      .add(
-        TweetUrlsFeature,
-        candidate.metadata.flatMap(_.tweetUrls.map(_.map(_.originalUrl))).getOrElse(Seq.empty))
-      .build()
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/earlybird/ScoredTweetsEarlybirdFrsResponseFeatureTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/earlybird/ScoredTweetsEarlybirdFrsResponseFeatureTransformer.scala
deleted file mode 100644
index bb9ea8bee..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/earlybird/ScoredTweetsEarlybirdFrsResponseFeatureTransformer.scala
+++ /dev/null
@@ -1,33 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.response_transformer.earlybird
-
-import com.twitter.home_mixer.model.HomeFeatures.CandidateSourceIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.search.earlybird.{thriftscala => eb}
-import com.twitter.timelineservice.suggests.logging.candidate_tweet_source_id.{thriftscala => cts}
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-
-object ScoredTweetsEarlybirdFrsResponseFeatureTransformer
-    extends CandidateFeatureTransformer[eb.ThriftSearchResult] {
-
-  override val identifier: TransformerIdentifier =
-    TransformerIdentifier("ScoredTweetsEarlybirdFrsResponse")
-
-  override val features: Set[Feature[_, _]] = EarlybirdResponseTransformer.features
-
-  override def transform(candidate: eb.ThriftSearchResult): FeatureMap = {
-
-    val baseFeatures = EarlybirdResponseTransformer.transform(candidate)
-
-    val features = FeatureMapBuilder()
-      .add(CandidateSourceIdFeature, Some(cts.CandidateTweetSourceId.FrsTweet))
-      .add(SuggestTypeFeature, Some(st.SuggestType.FrsTweet))
-      .build()
-
-    baseFeatures ++ features
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/earlybird/ScoredTweetsEarlybirdInNetworkResponseFeatureTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/earlybird/ScoredTweetsEarlybirdInNetworkResponseFeatureTransformer.scala
deleted file mode 100644
index 6b6a9d003..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/response_transformer/earlybird/ScoredTweetsEarlybirdInNetworkResponseFeatureTransformer.scala
+++ /dev/null
@@ -1,32 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.response_transformer.earlybird
-
-import com.twitter.home_mixer.model.HomeFeatures.CandidateSourceIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.search.earlybird.{thriftscala => eb}
-import com.twitter.timelineservice.suggests.logging.candidate_tweet_source_id.{thriftscala => cts}
-import com.twitter.timelineservice.suggests.{thriftscala => st}
-
-object ScoredTweetsEarlybirdInNetworkResponseFeatureTransformer
-    extends CandidateFeatureTransformer[eb.ThriftSearchResult] {
-  override val identifier: TransformerIdentifier =
-    TransformerIdentifier("ScoredTweetsEarlybirdInNetworkResponse")
-
-  override val features: Set[Feature[_, _]] = EarlybirdResponseTransformer.features
-
-  override def transform(candidate: eb.ThriftSearchResult): FeatureMap = {
-
-    val baseFeatures = EarlybirdResponseTransformer.transform(candidate)
-
-    val features = FeatureMapBuilder()
-      .add(CandidateSourceIdFeature, Some(cts.CandidateTweetSourceId.RecycledTweet))
-      .add(SuggestTypeFeature, Some(st.SuggestType.RecycledTweet))
-      .build()
-
-    baseFeatures ++ features
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer/BUILD.bazel
deleted file mode 100644
index 91ff12ee1..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer/BUILD.bazel
+++ /dev/null
@@ -1,20 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/scorer",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/module",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/feature/featuremap/datarecord",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/util",
-        "src/scala/com/twitter/timelines/prediction/features/recap",
-        "timelineservice/common:model",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer/DiversityDiscountProvider.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer/DiversityDiscountProvider.scala
deleted file mode 100644
index 62dea8748..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer/DiversityDiscountProvider.scala
+++ /dev/null
@@ -1,63 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.scorer
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.ScoreFeature
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-
-trait DiversityDiscountProvider {
-
-  /**
-   * Fetch the ID of the entity to diversify
-   */
-  def entityId(candidate: CandidateWithFeatures[TweetCandidate]): Option[Long]
-
-  /**
-   * Compute discount factor for each candidate based on position (zero-based)
-   * relative to other candidates associated with the same entity
-   */
-  def discount(position: Int): Double
-
-  /**
-   * Return candidate IDs sorted by score in descending order
-   */
-  def sort(candidates: Seq[CandidateWithFeatures[TweetCandidate]]): Seq[Long] = candidates
-    .map { candidate =>
-      (candidate.candidate.id, candidate.features.getOrElse(ScoreFeature, None).getOrElse(0.0))
-    }
-    .sortBy(_._2)(Ordering.Double.reverse)
-    .map(_._1)
-
-  /**
-   * Group by the specified entity ID (e.g. authors, likers, followers)
-   * Sort each group by score in descending order
-   * Determine the discount factor based on the position of each candidate
-   */
-  def apply(
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Map[Long, Double] = candidates
-    .groupBy(entityId)
-    .flatMap {
-      case (entityIdOpt, entityCandidates) =>
-        val sortedCandidateIds = sort(entityCandidates)
-
-        if (entityIdOpt.isDefined) {
-          sortedCandidateIds.zipWithIndex.map {
-            case (candidateId, index) =>
-              candidateId -> discount(index)
-          }
-        } else sortedCandidateIds.map(_ -> 1.0)
-    }
-}
-
-object AuthorDiversityDiscountProvider extends DiversityDiscountProvider {
-  private val Decay = 0.5
-  private val Floor = 0.25
-
-  override def entityId(candidate: CandidateWithFeatures[TweetCandidate]): Option[Long] =
-    candidate.features.getOrElse(AuthorIdFeature, None)
-
-  // Provides an exponential decay based discount by position (with a floor)
-  override def discount(position: Int): Double =
-    (1 - Floor) * Math.pow(Decay, position) + Floor
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer/HeuristicScorer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer/HeuristicScorer.scala
deleted file mode 100644
index 765523b53..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer/HeuristicScorer.scala
+++ /dev/null
@@ -1,46 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.scorer
-
-import com.twitter.home_mixer.model.HomeFeatures.ScoreFeature
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.scorer.Scorer
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.ScorerIdentifier
-import com.twitter.stitch.Stitch
-
-/**
- * Apply various heuristics to the model score
- */
-object HeuristicScorer extends Scorer[ScoredTweetsQuery, TweetCandidate] {
-
-  override val identifier: ScorerIdentifier = ScorerIdentifier("Heuristic")
-
-  override val features: Set[Feature[_, _]] = Set(ScoreFeature)
-
-  override def apply(
-    query: ScoredTweetsQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = {
-    val rescorers = Seq(
-      RescoreOutOfNetwork,
-      RescoreReplies,
-      RescoreBlueVerified,
-      RescoreCreators,
-      RescoreMTLNormalization,
-      RescoreAuthorDiversity(AuthorDiversityDiscountProvider(candidates)),
-      RescoreFeedbackFatigue(query)
-    )
-
-    val updatedScores = candidates.map { candidate =>
-      val score = candidate.features.getOrElse(ScoreFeature, None)
-      val scaleFactor = rescorers.map(_(query, candidate)).product
-      val updatedScore = score.map(_ * scaleFactor)
-      FeatureMapBuilder().add(ScoreFeature, updatedScore).build()
-    }
-
-    Stitch.value(updatedScores)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer/NaviModelScorer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer/NaviModelScorer.scala
deleted file mode 100644
index cbde87f73..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer/NaviModelScorer.scala
+++ /dev/null
@@ -1,179 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.scorer
-
-import com.twitter.finagle.stats.Stat
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.home_mixer.model.HomeFeatures.ScoreFeature
-import com.twitter.home_mixer.model.HomeFeatures.WeightedModelScoreFeature
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.home_mixer.product.scored_tweets.scorer.PredictedScoreFeature.PredictedScoreFeatures
-import com.twitter.ml.api.DataRecord
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.FeatureWithDefaultOnFailure
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordInAFeature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.datarecord.AllFeatures
-import com.twitter.product_mixer.core.feature.featuremap.datarecord.DataRecordConverter
-import com.twitter.product_mixer.core.feature.featuremap.datarecord.DataRecordExtractor
-import com.twitter.product_mixer.core.functional_component.scorer.Scorer
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.identifier.ScorerIdentifier
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.IllegalStateFailure
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.PipelineFailure
-import com.twitter.product_mixer.core.util.OffloadFuturePools
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.clients.predictionservice.PredictionGRPCService
-import com.twitter.timelines.clients.predictionservice.PredictionServiceGRPCClient
-import com.twitter.util.Future
-import com.twitter.util.Return
-import javax.inject.Inject
-import javax.inject.Singleton
-
-object CommonFeaturesDataRecordFeature
-    extends DataRecordInAFeature[PipelineQuery]
-    with FeatureWithDefaultOnFailure[PipelineQuery, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-object CandidateFeaturesDataRecordFeature
-    extends DataRecordInAFeature[TweetCandidate]
-    with FeatureWithDefaultOnFailure[TweetCandidate, DataRecord] {
-  override def defaultValue: DataRecord = new DataRecord()
-}
-
-@Singleton
-case class NaviModelScorer @Inject() (
-  predictionGRPCService: PredictionGRPCService,
-  statsReceiver: StatsReceiver)
-    extends Scorer[ScoredTweetsQuery, TweetCandidate] {
-
-  override val identifier: ScorerIdentifier = ScorerIdentifier("NaviModel")
-
-  override val features: Set[Feature[_, _]] = Set(
-    CommonFeaturesDataRecordFeature,
-    CandidateFeaturesDataRecordFeature,
-    WeightedModelScoreFeature,
-    ScoreFeature
-  ) ++ PredictedScoreFeatures.asInstanceOf[Set[Feature[_, _]]]
-
-  private val queryDataRecordAdapter = new DataRecordConverter(AllFeatures())
-  private val candidatesDataRecordAdapter = new DataRecordConverter(AllFeatures())
-  private val resultDataRecordExtractor = new DataRecordExtractor(PredictedScoreFeatures)
-
-  private val scopedStatsReceiver = statsReceiver.scope(getClass.getSimpleName)
-  private val failuresStat = scopedStatsReceiver.stat("failures")
-  private val responsesStat = scopedStatsReceiver.stat("responses")
-  private val invalidResponsesCounter = scopedStatsReceiver.counter("invalidResponses")
-  private val candidatesDataRecordAdapterLatencyStat =
-    scopedStatsReceiver.scope("candidatesDataRecordAdapter").stat("latency_ms")
-
-  private val StatsReadabilityMultiplier = 1000
-  private val Epsilon = 0.001
-  private val PredictedScoreStatName = f"predictedScore${StatsReadabilityMultiplier}x"
-  private val MissingScoreStatName = "missingScore"
-  private val scoreStat = scopedStatsReceiver.stat(f"score${StatsReadabilityMultiplier}x")
-
-  private val RequestBatchSize = 64
-  private val DataRecordConstructionParallelism = 32
-  private val ModelId = "Home"
-
-  private val modelClient = new PredictionServiceGRPCClient(
-    service = predictionGRPCService,
-    statsReceiver = statsReceiver,
-    requestBatchSize = RequestBatchSize,
-    useCompact = false
-  )
-
-  override def apply(
-    query: ScoredTweetsQuery,
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Stitch[Seq[FeatureMap]] = {
-    val commonRecord = query.features.map(queryDataRecordAdapter.toDataRecord)
-    val candidateRecords: Future[Seq[DataRecord]] =
-      Stat.time(candidatesDataRecordAdapterLatencyStat) {
-        OffloadFuturePools.parallelize[FeatureMap, DataRecord](
-          inputSeq = candidates.map(_.features),
-          transformer = candidatesDataRecordAdapter.toDataRecord(_),
-          parallelism = DataRecordConstructionParallelism,
-          default = new DataRecord
-        )
-      }
-
-    val scoreFeatureMaps = candidateRecords.flatMap { records =>
-      val predictionResponses =
-        modelClient.getPredictions(records, commonRecord, modelId = Some(ModelId))
-
-      predictionResponses.map { responses =>
-        failuresStat.add(responses.count(_.isThrow))
-        responsesStat.add(responses.size)
-
-        if (responses.size == candidates.size) {
-          val predictedScoreFeatureMaps = responses.map {
-            case Return(dataRecord) => resultDataRecordExtractor.fromDataRecord(dataRecord)
-            case _ => resultDataRecordExtractor.fromDataRecord(new DataRecord())
-          }
-
-          // Add Data Record to candidate Feature Map for logging in later stages
-          predictedScoreFeatureMaps.zip(records).map {
-            case (predictedScoreFeatureMap, candidateRecord) =>
-              val weightedModelScore = computeWeightedModelScore(query, predictedScoreFeatureMap)
-              scoreStat.add((weightedModelScore * StatsReadabilityMultiplier).toFloat)
-
-              predictedScoreFeatureMap +
-                (CandidateFeaturesDataRecordFeature, candidateRecord) +
-                (CommonFeaturesDataRecordFeature, commonRecord.getOrElse(new DataRecord())) +
-                (ScoreFeature, Some(weightedModelScore)) +
-                (WeightedModelScoreFeature, Some(weightedModelScore))
-          }
-        } else {
-          invalidResponsesCounter.incr()
-          throw PipelineFailure(IllegalStateFailure, "Result size mismatched candidates size")
-        }
-      }
-    }
-
-    Stitch.callFuture(scoreFeatureMaps)
-  }
-
-  /**
-   * Compute the weighted sum of predicted scores of all engagements
-   * Convert negative score to positive, if needed
-   */
-  private def computeWeightedModelScore(
-    query: PipelineQuery,
-    features: FeatureMap
-  ): Double = {
-    val weightedScoreAndModelWeightSeq = PredictedScoreFeatures.toSeq.map { predictedScoreFeature =>
-      val predictedScoreOpt = predictedScoreFeature.extractScore(features)
-
-      predictedScoreOpt match {
-        case Some(predictedScore) =>
-          scopedStatsReceiver
-            .stat(predictedScoreFeature.statName, PredictedScoreStatName)
-            .add((predictedScore * StatsReadabilityMultiplier).toFloat)
-        case None =>
-          scopedStatsReceiver.counter(predictedScoreFeature.statName, MissingScoreStatName).incr()
-      }
-
-      val weight = query.params(predictedScoreFeature.modelWeightParam)
-      val weightedScore = predictedScoreOpt.getOrElse(0.0) * weight
-      (weightedScore, weight)
-    }
-
-    val (weightedScores, modelWeights) = weightedScoreAndModelWeightSeq.unzip
-    val combinedScoreSum = weightedScores.sum
-
-    val positiveModelWeightsSum = modelWeights.filter(_ > 0.0).sum
-    val negativeModelWeightsSum = modelWeights.filter(_ < 0).sum.abs
-    val modelWeightsSum = positiveModelWeightsSum + negativeModelWeightsSum
-
-    val weightedScoresSum =
-      if (modelWeightsSum == 0) combinedScoreSum.max(0.0)
-      else if (combinedScoreSum < 0)
-        (combinedScoreSum + negativeModelWeightsSum) / modelWeightsSum * Epsilon
-      else combinedScoreSum + Epsilon
-
-    weightedScoresSum
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer/PredictedScoreFeature.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer/PredictedScoreFeature.scala
deleted file mode 100644
index f24223a99..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer/PredictedScoreFeature.scala
+++ /dev/null
@@ -1,166 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.scorer
-
-import com.twitter.dal.personal_data.{thriftjava => pd}
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.Scoring.ModelWeights
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.datarecord.DataRecordOptionalFeature
-import com.twitter.product_mixer.core.feature.datarecord.DoubleDataRecordCompatible
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.timelines.configapi.FSBoundedParam
-import com.twitter.timelines.prediction.features.recap.RecapFeatures
-
-sealed trait PredictedScoreFeature
-    extends DataRecordOptionalFeature[TweetCandidate, Double]
-    with DoubleDataRecordCompatible {
-
-  override val personalDataTypes: Set[pd.PersonalDataType] = Set.empty
-  def statName: String
-  def modelWeightParam: FSBoundedParam[Double]
-  def extractScore: FeatureMap => Option[Double] = _.getOrElse(this, None)
-}
-
-object PredictedFavoriteScoreFeature extends PredictedScoreFeature {
-  override val featureName: String = RecapFeatures.PREDICTED_IS_FAVORITED.getFeatureName
-  override val statName = "fav"
-  override val modelWeightParam = ModelWeights.FavParam
-}
-
-object PredictedReplyScoreFeature extends PredictedScoreFeature {
-  override val featureName: String = RecapFeatures.PREDICTED_IS_REPLIED.getFeatureName
-  override val statName = "reply"
-  override val modelWeightParam = ModelWeights.ReplyParam
-}
-
-object PredictedRetweetScoreFeature extends PredictedScoreFeature {
-  override val featureName: String = RecapFeatures.PREDICTED_IS_RETWEETED.getFeatureName
-  override val statName = "retweet"
-  override val modelWeightParam = ModelWeights.RetweetParam
-}
-
-object PredictedReplyEngagedByAuthorScoreFeature extends PredictedScoreFeature {
-  override val featureName: String =
-    RecapFeatures.PREDICTED_IS_REPLIED_REPLY_ENGAGED_BY_AUTHOR.getFeatureName
-  override val statName = "reply_engaged_by_author"
-  override val modelWeightParam = ModelWeights.ReplyEngagedByAuthorParam
-}
-
-object PredictedGoodClickConvoDescFavoritedOrRepliedScoreFeature extends PredictedScoreFeature {
-  override val featureName: String = RecapFeatures.PREDICTED_IS_GOOD_CLICKED_V1.getFeatureName
-  override val statName = "good_click_convo_desc_favorited_or_replied"
-  override val modelWeightParam = ModelWeights.GoodClickParam
-
-  override def extractScore: FeatureMap => Option[Double] = { featureMap =>
-    val goodClickV1Opt = featureMap.getOrElse(this, None)
-    val goodClickV2Opt = featureMap.getOrElse(PredictedGoodClickConvoDescUamGt2ScoreFeature, None)
-
-    (goodClickV1Opt, goodClickV2Opt) match {
-      case (Some(v1Score), Some(v2Score)) => Some(Math.max(v1Score, v2Score))
-      case _ => goodClickV1Opt.orElse(goodClickV2Opt)
-    }
-  }
-}
-
-object PredictedGoodClickConvoDescUamGt2ScoreFeature extends PredictedScoreFeature {
-  override val featureName: String = RecapFeatures.PREDICTED_IS_GOOD_CLICKED_V2.getFeatureName
-  override val statName = "good_click_convo_desc_uam_gt_2"
-  override val modelWeightParam = ModelWeights.GoodClickV2Param
-}
-
-object PredictedGoodProfileClickScoreFeature extends PredictedScoreFeature {
-  override val featureName: String =
-    RecapFeatures.PREDICTED_IS_PROFILE_CLICKED_AND_PROFILE_ENGAGED.getFeatureName
-  override val statName = "good_profile_click"
-  override val modelWeightParam = ModelWeights.GoodProfileClickParam
-}
-
-object PredictedVideoPlayback50ScoreFeature extends PredictedScoreFeature {
-  override val featureName: String = RecapFeatures.PREDICTED_IS_VIDEO_PLAYBACK_50.getFeatureName
-  override val statName = "video_playback_50"
-  override val modelWeightParam = ModelWeights.VideoPlayback50Param
-}
-
-object PredictedTweetDetailDwellScoreFeature extends PredictedScoreFeature {
-  override val featureName: String =
-    RecapFeatures.PREDICTED_IS_TWEET_DETAIL_DWELLED_15_SEC.getFeatureName
-  override val statName = "tweet_detail_dwell"
-  override val modelWeightParam = ModelWeights.TweetDetailDwellParam
-}
-
-object PredictedProfileDwelledScoreFeature extends PredictedScoreFeature {
-  override val featureName: String =
-    RecapFeatures.PREDICTED_IS_PROFILE_DWELLED_20_SEC.getFeatureName
-  override val statName = "profile_dwell"
-  override val modelWeightParam = ModelWeights.ProfileDwelledParam
-}
-
-object PredictedBookmarkScoreFeature extends PredictedScoreFeature {
-  override val featureName: String = RecapFeatures.PREDICTED_IS_BOOKMARKED.getFeatureName
-  override val statName = "bookmark"
-  override val modelWeightParam = ModelWeights.BookmarkParam
-}
-
-object PredictedShareScoreFeature extends PredictedScoreFeature {
-  override val featureName: String =
-    RecapFeatures.PREDICTED_IS_SHARED.getFeatureName
-  override val statName = "share"
-  override val modelWeightParam = ModelWeights.ShareParam
-}
-
-object PredictedShareMenuClickScoreFeature extends PredictedScoreFeature {
-  override val featureName: String =
-    RecapFeatures.PREDICTED_IS_SHARE_MENU_CLICKED.getFeatureName
-  override val statName = "share_menu_click"
-  override val modelWeightParam = ModelWeights.ShareMenuClickParam
-}
-
-// Negative Engagements
-object PredictedNegativeFeedbackV2ScoreFeature extends PredictedScoreFeature {
-  override val featureName: String =
-    RecapFeatures.PREDICTED_IS_NEGATIVE_FEEDBACK_V2.getFeatureName
-  override val statName = "negative_feedback_v2"
-  override val modelWeightParam = ModelWeights.NegativeFeedbackV2Param
-}
-
-object PredictedReportedScoreFeature extends PredictedScoreFeature {
-  override val featureName: String =
-    RecapFeatures.PREDICTED_IS_REPORT_TWEET_CLICKED.getFeatureName
-  override val statName = "reported"
-  override val modelWeightParam = ModelWeights.ReportParam
-}
-
-object PredictedStrongNegativeFeedbackScoreFeature extends PredictedScoreFeature {
-  override val featureName: String =
-    RecapFeatures.PREDICTED_IS_STRONG_NEGATIVE_FEEDBACK.getFeatureName
-  override val statName = "strong_negative_feedback"
-  override val modelWeightParam = ModelWeights.StrongNegativeFeedbackParam
-}
-
-object PredictedWeakNegativeFeedbackScoreFeature extends PredictedScoreFeature {
-  override val featureName: String =
-    RecapFeatures.PREDICTED_IS_WEAK_NEGATIVE_FEEDBACK.getFeatureName
-  override val statName = "weak_negative_feedback"
-  override val modelWeightParam = ModelWeights.WeakNegativeFeedbackParam
-}
-
-object PredictedScoreFeature {
-  val PredictedScoreFeatures: Set[PredictedScoreFeature] = Set(
-    PredictedFavoriteScoreFeature,
-    PredictedReplyScoreFeature,
-    PredictedRetweetScoreFeature,
-    PredictedReplyEngagedByAuthorScoreFeature,
-    PredictedGoodClickConvoDescFavoritedOrRepliedScoreFeature,
-    PredictedGoodClickConvoDescUamGt2ScoreFeature,
-    PredictedGoodProfileClickScoreFeature,
-    PredictedVideoPlayback50ScoreFeature,
-    PredictedTweetDetailDwellScoreFeature,
-    PredictedProfileDwelledScoreFeature,
-    PredictedBookmarkScoreFeature,
-    PredictedShareScoreFeature,
-    PredictedShareMenuClickScoreFeature,
-    // Negative Engagements
-    PredictedNegativeFeedbackV2ScoreFeature,
-    PredictedReportedScoreFeature,
-    PredictedStrongNegativeFeedbackScoreFeature,
-    PredictedWeakNegativeFeedbackScoreFeature,
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer/RescoringFactorProvider.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer/RescoringFactorProvider.scala
deleted file mode 100644
index d9538b66d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer/RescoringFactorProvider.scala
+++ /dev/null
@@ -1,180 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.scorer
-
-import com.twitter.home_mixer.functional_component.scorer.FeedbackFatigueScorer
-import com.twitter.home_mixer.model.HomeFeatures
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIsBlueVerifiedFeature
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIsCreatorFeature
-import com.twitter.home_mixer.model.HomeFeatures.FeedbackHistoryFeature
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.BlueVerifiedAuthorInNetworkMultiplierParam
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.BlueVerifiedAuthorOutOfNetworkMultiplierParam
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CreatorInNetworkMultiplierParam
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CreatorOutOfNetworkMultiplierParam
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.OutOfNetworkScaleFactorParam
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelineservice.{thriftscala => tls}
-
-trait RescoringFactorProvider {
-
-  def selector(candidate: CandidateWithFeatures[TweetCandidate]): Boolean
-
-  def factor(
-    query: PipelineQuery,
-    candidate: CandidateWithFeatures[TweetCandidate]
-  ): Double
-
-  def apply(
-    query: PipelineQuery,
-    candidate: CandidateWithFeatures[TweetCandidate],
-  ): Double = if (selector(candidate)) factor(query, candidate) else 1.0
-}
-
-/**
- * Re-scoring multiplier to apply to authors who are eligible subscription content creators
- */
-object RescoreCreators extends RescoringFactorProvider {
-
-  def selector(candidate: CandidateWithFeatures[TweetCandidate]): Boolean =
-    candidate.features.getOrElse(AuthorIsCreatorFeature, false) &&
-      CandidatesUtil.isOriginalTweet(candidate)
-
-  def factor(
-    query: PipelineQuery,
-    candidate: CandidateWithFeatures[TweetCandidate]
-  ): Double =
-    if (candidate.features.getOrElse(InNetworkFeature, false))
-      query.params(CreatorInNetworkMultiplierParam)
-    else query.params(CreatorOutOfNetworkMultiplierParam)
-}
-
-/**
- * Re-scoring multiplier to apply to authors who are verified by Twitter Blue
- */
-object RescoreBlueVerified extends RescoringFactorProvider {
-
-  def selector(candidate: CandidateWithFeatures[TweetCandidate]): Boolean =
-    candidate.features.getOrElse(AuthorIsBlueVerifiedFeature, false) &&
-      CandidatesUtil.isOriginalTweet(candidate)
-
-  def factor(
-    query: PipelineQuery,
-    candidate: CandidateWithFeatures[TweetCandidate]
-  ): Double =
-    if (candidate.features.getOrElse(InNetworkFeature, false))
-      query.params(BlueVerifiedAuthorInNetworkMultiplierParam)
-    else query.params(BlueVerifiedAuthorOutOfNetworkMultiplierParam)
-}
-
-/**
- * Re-scoring multiplier to apply to out-of-network tweets
- */
-object RescoreOutOfNetwork extends RescoringFactorProvider {
-
-  def selector(candidate: CandidateWithFeatures[TweetCandidate]): Boolean =
-    !candidate.features.getOrElse(InNetworkFeature, false)
-
-  def factor(
-    query: PipelineQuery,
-    candidate: CandidateWithFeatures[TweetCandidate]
-  ): Double = query.params(OutOfNetworkScaleFactorParam)
-}
-
-/**
- * Re-scoring multiplier to apply to reply candidates
- */
-object RescoreReplies extends RescoringFactorProvider {
-
-  private val ScaleFactor = 0.75
-
-  def selector(candidate: CandidateWithFeatures[TweetCandidate]): Boolean =
-    candidate.features.getOrElse(InReplyToTweetIdFeature, None).isDefined
-
-  def factor(
-    query: PipelineQuery,
-    candidate: CandidateWithFeatures[TweetCandidate]
-  ): Double = ScaleFactor
-}
-
-/**
- * Re-scoring multiplier to calibrate multi-tasks learning model prediction
- */
-object RescoreMTLNormalization extends RescoringFactorProvider {
-
-  private val ScaleFactor = 1.0
-
-  def selector(candidate: CandidateWithFeatures[TweetCandidate]): Boolean = {
-    candidate.features.contains(HomeFeatures.FocalTweetAuthorIdFeature)
-  }
-
-  def factor(
-    query: PipelineQuery,
-    candidate: CandidateWithFeatures[TweetCandidate]
-  ): Double = ScaleFactor
-}
-
-/**
- * Re-scoring multiplier to apply to multiple tweets from the same author
- */
-case class RescoreAuthorDiversity(diversityDiscounts: Map[Long, Double])
-    extends RescoringFactorProvider {
-
-  def selector(candidate: CandidateWithFeatures[TweetCandidate]): Boolean =
-    diversityDiscounts.contains(candidate.candidate.id)
-
-  def factor(
-    query: PipelineQuery,
-    candidate: CandidateWithFeatures[TweetCandidate]
-  ): Double = diversityDiscounts(candidate.candidate.id)
-}
-
-case class RescoreFeedbackFatigue(query: PipelineQuery) extends RescoringFactorProvider {
-
-  def selector(candidate: CandidateWithFeatures[TweetCandidate]): Boolean = true
-
-  private val feedbackEntriesByEngagementType =
-    query.features
-      .getOrElse(FeatureMap.empty).getOrElse(FeedbackHistoryFeature, Seq.empty)
-      .filter { entry =>
-        val timeSinceFeedback = query.queryTime.minus(entry.timestamp)
-        timeSinceFeedback < FeedbackFatigueScorer.DurationForFiltering + FeedbackFatigueScorer.DurationForDiscounting &&
-        entry.feedbackType == tls.FeedbackType.SeeFewer
-      }.groupBy(_.engagementType)
-
-  private val authorsToDiscount =
-    FeedbackFatigueScorer.getUserDiscounts(
-      query.queryTime,
-      feedbackEntriesByEngagementType.getOrElse(tls.FeedbackEngagementType.Tweet, Seq.empty))
-
-  private val likersToDiscount =
-    FeedbackFatigueScorer.getUserDiscounts(
-      query.queryTime,
-      feedbackEntriesByEngagementType.getOrElse(tls.FeedbackEngagementType.Like, Seq.empty))
-
-  private val followersToDiscount =
-    FeedbackFatigueScorer.getUserDiscounts(
-      query.queryTime,
-      feedbackEntriesByEngagementType.getOrElse(tls.FeedbackEngagementType.Follow, Seq.empty))
-
-  private val retweetersToDiscount =
-    FeedbackFatigueScorer.getUserDiscounts(
-      query.queryTime,
-      feedbackEntriesByEngagementType.getOrElse(tls.FeedbackEngagementType.Retweet, Seq.empty))
-
-  def factor(
-    query: PipelineQuery,
-    candidate: CandidateWithFeatures[TweetCandidate]
-  ): Double = {
-    FeedbackFatigueScorer.getScoreMultiplier(
-      candidate,
-      authorsToDiscount,
-      likersToDiscount,
-      followersToDiscount,
-      retweetersToDiscount
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scoring_pipeline/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scoring_pipeline/BUILD.bazel
deleted file mode 100644
index a7fccd8ff..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scoring_pipeline/BUILD.bazel
+++ /dev/null
@@ -1,25 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/scorer",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/module",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/candidate_pipeline",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/offline_aggregates",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/real_time_aggregates",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/gate",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/selector",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/feature/featuremap/datarecord",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/scoring",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scoring_pipeline/ScoredTweetsHeuristicScoringPipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scoring_pipeline/ScoredTweetsHeuristicScoringPipelineConfig.scala
deleted file mode 100644
index aedfc15b5..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scoring_pipeline/ScoredTweetsHeuristicScoringPipelineConfig.scala
+++ /dev/null
@@ -1,23 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.scoring_pipeline
-
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.home_mixer.product.scored_tweets.scorer.HeuristicScorer
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.component_library.selector.InsertAppendResults
-import com.twitter.product_mixer.core.functional_component.common.AllPipelines
-import com.twitter.product_mixer.core.functional_component.scorer.Scorer
-import com.twitter.product_mixer.core.functional_component.selector.Selector
-import com.twitter.product_mixer.core.model.common.identifier.ScoringPipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.scoring.ScoringPipelineConfig
-
-object ScoredTweetsHeuristicScoringPipelineConfig
-    extends ScoringPipelineConfig[ScoredTweetsQuery, TweetCandidate] {
-
-  override val identifier: ScoringPipelineIdentifier =
-    ScoringPipelineIdentifier("ScoredTweetsHeuristic")
-
-  override val selectors: Seq[Selector[ScoredTweetsQuery]] = Seq(InsertAppendResults(AllPipelines))
-
-  override val scorers: Seq[Scorer[ScoredTweetsQuery, TweetCandidate]] =
-    Seq(HeuristicScorer)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scoring_pipeline/ScoredTweetsModelScoringPipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scoring_pipeline/ScoredTweetsModelScoringPipelineConfig.scala
deleted file mode 100644
index ab1b49a83..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scoring_pipeline/ScoredTweetsModelScoringPipelineConfig.scala
+++ /dev/null
@@ -1,223 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.scoring_pipeline
-
-import com.twitter.home_mixer.functional_component.feature_hydrator._
-import com.twitter.home_mixer.model.HomeFeatures.EarlybirdScoreFeature
-import com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.CachedScoredTweetsCandidatePipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.ScoredTweetsBackfillCandidatePipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.ScoredTweetsFrsCandidatePipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.ScoredTweetsInNetworkCandidatePipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.ScoredTweetsListsCandidatePipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.ScoredTweetsPopularVideosCandidatePipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.ScoredTweetsTweetMixerCandidatePipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.candidate_pipeline.ScoredTweetsUtegCandidatePipelineConfig
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.AncestorFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.AuthorFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.AuthorIsCreatorFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.EarlybirdFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.GizmoduckAuthorFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.GraphTwoHopFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.MetricCenterUserCountingFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.RealGraphViewerAuthorFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.RealGraphViewerRelatedUsersFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.RealTimeInteractionGraphEdgeFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.SimClustersEngagementSimilarityFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.SimClustersUserTweetScoresHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.TSPInferredTopicFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.TweetMetaDataFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.TweetTimeFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.TweetypieContentFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.TwhinAuthorFollowFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.UtegFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates.Phase1EdgeAggregateFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.offline_aggregates.Phase2EdgeAggregateFeatureHydrator
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.real_time_aggregates._
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.QualityFactor
-import com.twitter.home_mixer.product.scored_tweets.scorer.NaviModelScorer
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.product_mixer.component_library.gate.NonEmptyCandidatesGate
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.component_library.selector.DropMaxCandidates
-import com.twitter.product_mixer.component_library.selector.InsertAppendResults
-import com.twitter.product_mixer.component_library.selector.UpdateSortCandidates
-import com.twitter.product_mixer.core.functional_component.common.AllExceptPipelines
-import com.twitter.product_mixer.core.functional_component.common.SpecificPipeline
-import com.twitter.product_mixer.core.functional_component.common.SpecificPipelines
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.BaseCandidateFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.gate.BaseGate
-import com.twitter.product_mixer.core.functional_component.scorer.Scorer
-import com.twitter.product_mixer.core.functional_component.selector.Selector
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.ScoringPipelineIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.model.common.presentation.ItemCandidateWithDetails
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.PipelineFailure
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.UnexpectedCandidateResult
-import com.twitter.product_mixer.core.pipeline.scoring.ScoringPipelineConfig
-import com.twitter.timelines.configapi.Param
-
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ScoredTweetsModelScoringPipelineConfig @Inject() (
-  // candidate sources
-  scoredTweetsInNetworkCandidatePipelineConfig: ScoredTweetsInNetworkCandidatePipelineConfig,
-  scoredTweetsUtegCandidatePipelineConfig: ScoredTweetsUtegCandidatePipelineConfig,
-  scoredTweetsTweetMixerCandidatePipelineConfig: ScoredTweetsTweetMixerCandidatePipelineConfig,
-  scoredTweetsFrsCandidatePipelineConfig: ScoredTweetsFrsCandidatePipelineConfig,
-  scoredTweetsListsCandidatePipelineConfig: ScoredTweetsListsCandidatePipelineConfig,
-  scoredTweetsPopularVideosCandidatePipelineConfig: ScoredTweetsPopularVideosCandidatePipelineConfig,
-  scoredTweetsBackfillCandidatePipelineConfig: ScoredTweetsBackfillCandidatePipelineConfig,
-  // feature hydrators
-  ancestorFeatureHydrator: AncestorFeatureHydrator,
-  authorFeatureHydrator: AuthorFeatureHydrator,
-  authorIsCreatorFeatureHydrator: AuthorIsCreatorFeatureHydrator,
-  earlybirdFeatureHydrator: EarlybirdFeatureHydrator,
-  gizmoduckAuthorSafetyFeatureHydrator: GizmoduckAuthorFeatureHydrator,
-  graphTwoHopFeatureHydrator: GraphTwoHopFeatureHydrator,
-  metricCenterUserCountingFeatureHydrator: MetricCenterUserCountingFeatureHydrator,
-  perspectiveFilteredSocialContextFeatureHydrator: PerspectiveFilteredSocialContextFeatureHydrator,
-  realGraphViewerAuthorFeatureHydrator: RealGraphViewerAuthorFeatureHydrator,
-  realGraphViewerRelatedUsersFeatureHydrator: RealGraphViewerRelatedUsersFeatureHydrator,
-  realTimeInteractionGraphEdgeFeatureHydrator: RealTimeInteractionGraphEdgeFeatureHydrator,
-  sgsValidSocialContextFeatureHydrator: SGSValidSocialContextFeatureHydrator,
-  simClustersEngagementSimilarityFeatureHydrator: SimClustersEngagementSimilarityFeatureHydrator,
-  simClustersUserTweetScoresHydrator: SimClustersUserTweetScoresHydrator,
-  tspInferredTopicFeatureHydrator: TSPInferredTopicFeatureHydrator,
-  tweetypieContentFeatureHydrator: TweetypieContentFeatureHydrator,
-  twhinAuthorFollowFeatureHydrator: TwhinAuthorFollowFeatureHydrator,
-  utegFeatureHydrator: UtegFeatureHydrator,
-  // real time aggregate feature hydrators
-  engagementsReceivedByAuthorRealTimeAggregateFeatureHydrator: EngagementsReceivedByAuthorRealTimeAggregateFeatureHydrator,
-  topicCountryEngagementRealTimeAggregateFeatureHydrator: TopicCountryEngagementRealTimeAggregateFeatureHydrator,
-  topicEngagementRealTimeAggregateFeatureHydrator: TopicEngagementRealTimeAggregateFeatureHydrator,
-  tweetCountryEngagementRealTimeAggregateFeatureHydrator: TweetCountryEngagementRealTimeAggregateFeatureHydrator,
-  tweetEngagementRealTimeAggregateFeatureHydrator: TweetEngagementRealTimeAggregateFeatureHydrator,
-  twitterListEngagementRealTimeAggregateFeatureHydrator: TwitterListEngagementRealTimeAggregateFeatureHydrator,
-  userAuthorEngagementRealTimeAggregateFeatureHydrator: UserAuthorEngagementRealTimeAggregateFeatureHydrator,
-  // offline aggregate feature hydrators
-  phase1EdgeAggregateFeatureHydrator: Phase1EdgeAggregateFeatureHydrator,
-  phase2EdgeAggregateFeatureHydrator: Phase2EdgeAggregateFeatureHydrator,
-  // model
-  naviModelScorer: NaviModelScorer)
-    extends ScoringPipelineConfig[ScoredTweetsQuery, TweetCandidate] {
-
-  override val identifier: ScoringPipelineIdentifier =
-    ScoringPipelineIdentifier("ScoredTweetsModel")
-
-  private val nonCachedScoringPipelineScope = AllExceptPipelines(
-    pipelinesToExclude = Set(CachedScoredTweetsCandidatePipelineConfig.Identifier)
-  )
-
-  override val gates: Seq[BaseGate[ScoredTweetsQuery]] = Seq(
-    NonEmptyCandidatesGate(nonCachedScoringPipelineScope)
-  )
-
-  private val earlybirdScorePipelineScope = Set(
-    scoredTweetsInNetworkCandidatePipelineConfig.identifier,
-    scoredTweetsUtegCandidatePipelineConfig.identifier,
-    scoredTweetsFrsCandidatePipelineConfig.identifier
-  )
-
-  private val earlybirdScoreOrdering: Ordering[CandidateWithDetails] =
-    Ordering.by[CandidateWithDetails, Double] {
-      case ItemCandidateWithDetails(_, _, features) =>
-        -features.getOrElse(EarlybirdScoreFeature, None).getOrElse(0.0)
-      case _ => throw PipelineFailure(UnexpectedCandidateResult, "Invalid candidate type")
-    }
-
-  private def qualityFactorDropMaxCandidates(
-    pipelineIdentifier: CandidatePipelineIdentifier,
-    qualityFactorParam: Param[Int]
-  ): DropMaxCandidates[ScoredTweetsQuery] = {
-    new DropMaxCandidates(
-      pipelineScope = SpecificPipelines(pipelineIdentifier),
-      maxSelector = (query, _, _) =>
-        (query.getQualityFactorCurrentValue(identifier) *
-          query.params(qualityFactorParam)).toInt
-    )
-  }
-
-  override val selectors: Seq[Selector[ScoredTweetsQuery]] = Seq(
-    UpdateSortCandidates(SpecificPipelines(earlybirdScorePipelineScope), earlybirdScoreOrdering),
-    UpdateSortCandidates(
-      SpecificPipeline(scoredTweetsBackfillCandidatePipelineConfig.identifier),
-      CandidatesUtil.reverseChronTweetsOrdering
-    ),
-    qualityFactorDropMaxCandidates(
-      scoredTweetsInNetworkCandidatePipelineConfig.identifier,
-      QualityFactor.InNetworkMaxTweetsToScoreParam
-    ),
-    qualityFactorDropMaxCandidates(
-      scoredTweetsUtegCandidatePipelineConfig.identifier,
-      QualityFactor.UtegMaxTweetsToScoreParam
-    ),
-    qualityFactorDropMaxCandidates(
-      scoredTweetsFrsCandidatePipelineConfig.identifier,
-      QualityFactor.FrsMaxTweetsToScoreParam
-    ),
-    qualityFactorDropMaxCandidates(
-      scoredTweetsTweetMixerCandidatePipelineConfig.identifier,
-      QualityFactor.TweetMixerMaxTweetsToScoreParam
-    ),
-    qualityFactorDropMaxCandidates(
-      scoredTweetsListsCandidatePipelineConfig.identifier,
-      QualityFactor.ListsMaxTweetsToScoreParam
-    ),
-    qualityFactorDropMaxCandidates(
-      scoredTweetsPopularVideosCandidatePipelineConfig.identifier,
-      QualityFactor.PopularVideosMaxTweetsToScoreParam
-    ),
-    qualityFactorDropMaxCandidates(
-      scoredTweetsBackfillCandidatePipelineConfig.identifier,
-      QualityFactor.BackfillMaxTweetsToScoreParam
-    ),
-    // Select candidates for Heavy Ranker Feature Hydration and Scoring
-    InsertAppendResults(nonCachedScoringPipelineScope)
-  )
-
-  override val preScoringFeatureHydrationPhase1: Seq[
-    BaseCandidateFeatureHydrator[ScoredTweetsQuery, TweetCandidate, _]
-  ] = Seq(
-    TweetMetaDataFeatureHydrator,
-    ancestorFeatureHydrator,
-    authorFeatureHydrator,
-    authorIsCreatorFeatureHydrator,
-    earlybirdFeatureHydrator,
-    gizmoduckAuthorSafetyFeatureHydrator,
-    graphTwoHopFeatureHydrator,
-    metricCenterUserCountingFeatureHydrator,
-    realTimeInteractionGraphEdgeFeatureHydrator,
-    realGraphViewerAuthorFeatureHydrator,
-    simClustersEngagementSimilarityFeatureHydrator,
-    simClustersUserTweetScoresHydrator,
-    InNetworkFeatureHydrator,
-    tspInferredTopicFeatureHydrator,
-    tweetypieContentFeatureHydrator,
-    twhinAuthorFollowFeatureHydrator,
-    utegFeatureHydrator,
-    // real time aggregates
-    engagementsReceivedByAuthorRealTimeAggregateFeatureHydrator,
-    tweetCountryEngagementRealTimeAggregateFeatureHydrator,
-    tweetEngagementRealTimeAggregateFeatureHydrator,
-    twitterListEngagementRealTimeAggregateFeatureHydrator,
-    userAuthorEngagementRealTimeAggregateFeatureHydrator,
-    // offline aggregates
-    phase1EdgeAggregateFeatureHydrator
-  )
-
-  override val preScoringFeatureHydrationPhase2: Seq[
-    BaseCandidateFeatureHydrator[ScoredTweetsQuery, TweetCandidate, _]
-  ] = Seq(
-    perspectiveFilteredSocialContextFeatureHydrator,
-    phase2EdgeAggregateFeatureHydrator,
-    realGraphViewerRelatedUsersFeatureHydrator,
-    sgsValidSocialContextFeatureHydrator,
-    TweetTimeFeatureHydrator,
-    topicCountryEngagementRealTimeAggregateFeatureHydrator,
-    topicEngagementRealTimeAggregateFeatureHydrator
-  )
-
-  override val scorers: Seq[Scorer[ScoredTweetsQuery, TweetCandidate]] = Seq(naviModelScorer)
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/selector/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/selector/BUILD.bazel
deleted file mode 100644
index c5dbb187f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/selector/BUILD.bazel
+++ /dev/null
@@ -1,12 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/selector",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/common/presentation",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/selector/KeepBestOutOfNetworkCandidatePerAuthorPerSuggestType.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/selector/KeepBestOutOfNetworkCandidatePerAuthorPerSuggestType.scala
deleted file mode 100644
index c485c4c2a..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/selector/KeepBestOutOfNetworkCandidatePerAuthorPerSuggestType.scala
+++ /dev/null
@@ -1,39 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.selector
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.ScoreFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.product_mixer.core.functional_component.common.CandidateScope
-import com.twitter.product_mixer.core.functional_component.selector.Selector
-import com.twitter.product_mixer.core.functional_component.selector.SelectorResult
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-
-case class KeepBestOutOfNetworkCandidatePerAuthorPerSuggestType(
-  override val pipelineScope: CandidateScope)
-    extends Selector[PipelineQuery] {
-
-  override def apply(
-    query: PipelineQuery,
-    remainingCandidates: Seq[CandidateWithDetails],
-    result: Seq[CandidateWithDetails]
-  ): SelectorResult = {
-    val (selectedCandidates, otherCandidates) =
-      remainingCandidates.partition(candidate =>
-        pipelineScope.contains(candidate) && !candidate.features.getOrElse(InNetworkFeature, true))
-
-    val filteredCandidates = selectedCandidates
-      .groupBy { candidate =>
-        (
-          candidate.features.getOrElse(AuthorIdFeature, None),
-          candidate.features.getOrElse(SuggestTypeFeature, None)
-        )
-      }
-      .values.map(_.maxBy(_.features.getOrElse(ScoreFeature, None)))
-      .toSeq
-
-    val updatedCandidates = otherCandidates ++ filteredCandidates
-    SelectorResult(remainingCandidates = updatedCandidates, result = result)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/side_effect/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/side_effect/BUILD.bazel
deleted file mode 100644
index 2147ee217..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/side_effect/BUILD.bazel
+++ /dev/null
@@ -1,33 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "finagle/finagle-mysql/src/main/scala",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/feature_hydrator/adapters/non_ml_features",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/scorer",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/service",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/side_effect",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/feature/featuremap/datarecord",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/marshaller/response/urt",
-        "servo/repo/src/main/scala",
-        "servo/util/src/main/scala",
-        "src/scala/com/twitter/timelines/prediction/common/adapters",
-        "src/thrift/com/twitter/timelines/suggests/common:data_record_metadata-scala",
-        "src/thrift/com/twitter/timelines/suggests/common:poly_data_record-java",
-        "src/thrift/com/twitter/timelines/timeline_logging:thrift-scala",
-        "timelines/ml:pldr-client",
-        "timelines/ml:pldr-conversion",
-        "timelines/ml/cont_train/common/domain/src/main/scala/com/twitter/timelines/ml/cont_train/common/domain/non_scalding",
-        "timelines/src/main/scala/com/twitter/timelines/util/stats",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/side_effect/CachedScoredTweetsSideEffect.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/side_effect/CachedScoredTweetsSideEffect.scala
deleted file mode 100644
index 3d66ff54a..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/side_effect/CachedScoredTweetsSideEffect.scala
+++ /dev/null
@@ -1,134 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.side_effect
-
-import com.twitter.home_mixer.model.HomeFeatures.AncestorsFeature
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIsBlueVerifiedFeature
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIsCreatorFeature
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIsGoldVerifiedFeature
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIsGrayVerifiedFeature
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIsLegacyVerifiedFeature
-import com.twitter.home_mixer.model.HomeFeatures.CachedCandidatePipelineIdentifierFeature
-import com.twitter.home_mixer.model.HomeFeatures.DirectedAtUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.ExclusiveConversationAuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InNetworkFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.LastScoredTimestampMsFeature
-import com.twitter.home_mixer.model.HomeFeatures.PerspectiveFilteredLikedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SGSValidFollowedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.SGSValidLikedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.ScoreFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.home_mixer.model.HomeFeatures.TopicContextFunctionalityTypeFeature
-import com.twitter.home_mixer.model.HomeFeatures.TopicIdSocialContextFeature
-import com.twitter.home_mixer.model.HomeFeatures.TweetUrlsFeature
-import com.twitter.home_mixer.model.HomeFeatures.WeightedModelScoreFeature
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsResponse
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.CachedScoredTweets
-import com.twitter.home_mixer.service.HomeMixerAlertConfig
-import com.twitter.home_mixer.{thriftscala => hmt}
-import com.twitter.product_mixer.core.functional_component.marshaller.response.urt.metadata.TopicContextFunctionalityTypeMarshaller
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.identifier.SideEffectIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.servo.cache.TtlCache
-import com.twitter.stitch.Stitch
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class CachedScoredTweetsSideEffect @Inject() (
-  scoredTweetsCache: TtlCache[Long, hmt.ScoredTweetsResponse])
-    extends PipelineResultSideEffect[PipelineQuery, ScoredTweetsResponse] {
-
-  override val identifier: SideEffectIdentifier = SideEffectIdentifier("CachedScoredTweets")
-
-  private val MaxTweetsToCache = 1000
-
-  def buildCachedScoredTweets(
-    query: PipelineQuery,
-    candidates: Seq[CandidateWithDetails]
-  ): hmt.ScoredTweetsResponse = {
-    val tweets = candidates.map { candidate =>
-      val sgsValidLikedByUserIds =
-        candidate.features.getOrElse(SGSValidLikedByUserIdsFeature, Seq.empty)
-      val sgsValidFollowedByUserIds =
-        candidate.features.getOrElse(SGSValidFollowedByUserIdsFeature, Seq.empty)
-      val perspectiveFilteredLikedByUserIds =
-        candidate.features.getOrElse(PerspectiveFilteredLikedByUserIdsFeature, Seq.empty)
-      val ancestors = candidate.features.getOrElse(AncestorsFeature, Seq.empty)
-
-      hmt.ScoredTweet(
-        tweetId = candidate.candidateIdLong,
-        authorId = candidate.features.get(AuthorIdFeature).get,
-        // Cache the model score instead of the final score because rescoring is per-request
-        score = candidate.features.getOrElse(WeightedModelScoreFeature, None),
-        suggestType = candidate.features.getOrElse(SuggestTypeFeature, None),
-        sourceTweetId = candidate.features.getOrElse(SourceTweetIdFeature, None),
-        sourceUserId = candidate.features.getOrElse(SourceUserIdFeature, None),
-        quotedTweetId = candidate.features.getOrElse(QuotedTweetIdFeature, None),
-        quotedUserId = candidate.features.getOrElse(QuotedUserIdFeature, None),
-        inReplyToTweetId = candidate.features.getOrElse(InReplyToTweetIdFeature, None),
-        inReplyToUserId = candidate.features.getOrElse(InReplyToUserIdFeature, None),
-        directedAtUserId = candidate.features.getOrElse(DirectedAtUserIdFeature, None),
-        inNetwork = Some(candidate.features.getOrElse(InNetworkFeature, true)),
-        sgsValidLikedByUserIds = Some(sgsValidLikedByUserIds),
-        sgsValidFollowedByUserIds = Some(sgsValidFollowedByUserIds),
-        topicId = candidate.features.getOrElse(TopicIdSocialContextFeature, None),
-        topicFunctionalityType = candidate.features
-          .getOrElse(TopicContextFunctionalityTypeFeature, None).map(
-            TopicContextFunctionalityTypeMarshaller(_)),
-        ancestors = if (ancestors.nonEmpty) Some(ancestors) else None,
-        isReadFromCache = Some(true),
-        streamToKafka = Some(false),
-        exclusiveConversationAuthorId = candidate.features
-          .getOrElse(ExclusiveConversationAuthorIdFeature, None),
-        authorMetadata = Some(
-          hmt.AuthorMetadata(
-            blueVerified = candidate.features.getOrElse(AuthorIsBlueVerifiedFeature, false),
-            goldVerified = candidate.features.getOrElse(AuthorIsGoldVerifiedFeature, false),
-            grayVerified = candidate.features.getOrElse(AuthorIsGrayVerifiedFeature, false),
-            legacyVerified = candidate.features.getOrElse(AuthorIsLegacyVerifiedFeature, false),
-            creator = candidate.features.getOrElse(AuthorIsCreatorFeature, false)
-          )),
-        lastScoredTimestampMs = candidate.features
-          .getOrElse(LastScoredTimestampMsFeature, Some(query.queryTime.inMilliseconds)),
-        candidatePipelineIdentifier = candidate.features
-          .getOrElse(CachedCandidatePipelineIdentifierFeature, Some(candidate.source.name)),
-        tweetUrls = Some(candidate.features.getOrElse(TweetUrlsFeature, Seq.empty)),
-        perspectiveFilteredLikedByUserIds = Some(perspectiveFilteredLikedByUserIds)
-      )
-    }
-
-    hmt.ScoredTweetsResponse(tweets)
-  }
-
-  final override def apply(
-    inputs: PipelineResultSideEffect.Inputs[PipelineQuery, ScoredTweetsResponse]
-  ): Stitch[Unit] = {
-    val candidates =
-      (inputs.selectedCandidates ++ inputs.remainingCandidates ++ inputs.droppedCandidates)
-        .filter(_.features.getOrElse(ScoreFeature, None).exists(_ > 0.0))
-
-    val truncatedCandidates =
-      if (candidates.size > MaxTweetsToCache)
-        candidates
-          .sortBy(-_.features.getOrElse(ScoreFeature, None).getOrElse(0.0)).take(MaxTweetsToCache)
-      else candidates
-
-    if (truncatedCandidates.nonEmpty) {
-      val ttl = inputs.query.params(CachedScoredTweets.TTLParam)
-      val scoredTweets = buildCachedScoredTweets(inputs.query, truncatedCandidates)
-      Stitch.callFuture(scoredTweetsCache.set(inputs.query.getRequiredUserId, scoredTweets, ttl))
-    } else Stitch.Unit
-  }
-
-  override val alerts = Seq(
-    HomeMixerAlertConfig.BusinessHours.defaultSuccessRateAlert(99.4)
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/side_effect/ScribeScoredCandidatesSideEffect.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/side_effect/ScribeScoredCandidatesSideEffect.scala
deleted file mode 100644
index ef7e3b41a..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/side_effect/ScribeScoredCandidatesSideEffect.scala
+++ /dev/null
@@ -1,126 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.side_effect
-
-import com.twitter.finagle.tracing.Trace
-import com.twitter.home_mixer.model.HomeFeatures.AncestorsFeature
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.DirectedAtUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.EarlybirdScoreFeature
-import com.twitter.home_mixer.model.HomeFeatures.FavoritedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.FollowedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.FromInNetworkSourceFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.QuotedUserIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.RequestJoinIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.ScoreFeature
-import com.twitter.home_mixer.model.HomeFeatures.SuggestTypeFeature
-import com.twitter.home_mixer.param.HomeMixerFlagName.ScribeScoredCandidatesFlag
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsResponse
-import com.twitter.home_mixer.product.scored_tweets.param.ScoredTweetsParam.EnableScribeScoredCandidatesParam
-import com.twitter.inject.annotations.Flag
-import com.twitter.logpipeline.client.common.EventPublisher
-import com.twitter.product_mixer.component_library.side_effect.ScribeLogEventSideEffect
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.identifier.SideEffectIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.CandidatePipelines
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.timelines.timeline_logging.{thriftscala => t}
-import javax.inject.Inject
-import javax.inject.Singleton
-import com.twitter.util.logging.Logging
-
-/**
- * Side effect that logs scored candidates from scoring pipelines
- */
-@Singleton
-class ScribeScoredCandidatesSideEffect @Inject() (
-  @Flag(ScribeScoredCandidatesFlag) enableScribeScoredCandidates: Boolean,
-  eventBusPublisher: EventPublisher[t.ScoredCandidate])
-    extends ScribeLogEventSideEffect[
-      t.ScoredCandidate,
-      ScoredTweetsQuery,
-      ScoredTweetsResponse
-    ]
-    with PipelineResultSideEffect.Conditionally[
-      ScoredTweetsQuery,
-      ScoredTweetsResponse
-    ]
-    with Logging {
-
-  override val identifier: SideEffectIdentifier =
-    SideEffectIdentifier("ScribeScoredCandidates")
-
-  override def onlyIf(
-    query: ScoredTweetsQuery,
-    selectedCandidates: Seq[CandidateWithDetails],
-    remainingCandidates: Seq[CandidateWithDetails],
-    droppedCandidates: Seq[CandidateWithDetails],
-    response: ScoredTweetsResponse
-  ): Boolean = enableScribeScoredCandidates && query.params(EnableScribeScoredCandidatesParam)
-
-  /**
-   * Build the log events from query, selections and response
-   *
-   * @param query               PipelineQuery
-   * @param selectedCandidates  Result after Selectors are executed
-   * @param remainingCandidates Candidates which were not selected
-   * @param droppedCandidates   Candidates dropped during selection
-   * @param response            Result after Unmarshalling
-   *
-   * @return LogEvent in thrift
-   */
-  override def buildLogEvents(
-    query: ScoredTweetsQuery,
-    selectedCandidates: Seq[CandidateWithDetails],
-    remainingCandidates: Seq[CandidateWithDetails],
-    droppedCandidates: Seq[CandidateWithDetails],
-    response: ScoredTweetsResponse
-  ): Seq[t.ScoredCandidate] = {
-    val returned = (selectedCandidates ++ remainingCandidates).map(toThrift(_, query, false))
-    val dropped = droppedCandidates.map(toThrift(_, query, true))
-    returned ++ dropped
-  }
-
-  private def toThrift(
-    candidate: CandidateWithDetails,
-    query: ScoredTweetsQuery,
-    isDropped: Boolean
-  ): t.ScoredCandidate = {
-    t.ScoredCandidate(
-      tweetId = candidate.candidateIdLong,
-      viewerId = query.getOptionalUserId,
-      authorId = candidate.features.getOrElse(AuthorIdFeature, None),
-      traceId = Some(Trace.id.traceId.toLong),
-      requestJoinId = query.features.flatMap(_.getOrElse(RequestJoinIdFeature, None)),
-      score = candidate.features.getOrElse(ScoreFeature, None),
-      suggestType = candidate.features.getOrElse(SuggestTypeFeature, None).map(_.name),
-      isInNetwork = candidate.features.getTry(FromInNetworkSourceFeature).toOption,
-      inReplyToTweetId = candidate.features.getOrElse(InReplyToTweetIdFeature, None),
-      inReplyToUserId = candidate.features.getOrElse(InReplyToUserIdFeature, None),
-      quotedTweetId = candidate.features.getOrElse(QuotedTweetIdFeature, None),
-      quotedUserId = candidate.features.getOrElse(QuotedUserIdFeature, None),
-      directedAtUserId = candidate.features.getOrElse(DirectedAtUserIdFeature, None),
-      favoritedByUserIds = convertSeqFeature(candidate, FavoritedByUserIdsFeature),
-      followedByUserIds = convertSeqFeature(candidate, FollowedByUserIdsFeature),
-      ancestors = convertSeqFeature(candidate, AncestorsFeature),
-      requestTimeMs = Some(query.queryTime.inMilliseconds),
-      candidatePipelineIdentifier =
-        candidate.features.getTry(CandidatePipelines).toOption.map(_.head.name),
-      earlybirdScore = candidate.features.getOrElse(EarlybirdScoreFeature, None),
-      isDropped = Some(isDropped)
-    )
-  }
-
-  private def convertSeqFeature[T](
-    candidateWithDetails: CandidateWithDetails,
-    feature: Feature[_, Seq[T]]
-  ): Option[Seq[T]] =
-    Option(
-      candidateWithDetails.features
-        .getOrElse(feature, Seq.empty)).filter(_.nonEmpty)
-
-  override val logPipelinePublisher: EventPublisher[t.ScoredCandidate] = eventBusPublisher
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/side_effect/ScribeServedCommonFeaturesAndCandidateFeaturesSideEffect.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/side_effect/ScribeServedCommonFeaturesAndCandidateFeaturesSideEffect.scala
deleted file mode 100644
index c93adee27..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/scored_tweets/side_effect/ScribeServedCommonFeaturesAndCandidateFeaturesSideEffect.scala
+++ /dev/null
@@ -1,225 +0,0 @@
-package com.twitter.home_mixer.product.scored_tweets.side_effect
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.finagle.mysql.Client
-import com.twitter.finagle.mysql.Transactions
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.finagle.util.DefaultTimer
-import com.twitter.home_mixer.model.HomeFeatures.ServedRequestIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceTweetIdFeature
-import com.twitter.home_mixer.param.HomeMixerFlagName.DataRecordMetadataStoreConfigsYmlFlag
-import com.twitter.home_mixer.param.HomeMixerFlagName.ScribeServedCommonFeaturesAndCandidateFeaturesFlag
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.CandidateFeaturesScribeEventPublisher
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.CommonFeaturesScribeEventPublisher
-import com.twitter.home_mixer.param.HomeMixerInjectionNames.MinimumFeaturesScribeEventPublisher
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.non_ml_features.NonMLCandidateFeatures
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.non_ml_features.NonMLCandidateFeaturesAdapter
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.non_ml_features.NonMLCommonFeatures
-import com.twitter.home_mixer.product.scored_tweets.feature_hydrator.adapters.non_ml_features.NonMLCommonFeaturesAdapter
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsQuery
-import com.twitter.home_mixer.product.scored_tweets.model.ScoredTweetsResponse
-import com.twitter.home_mixer.product.scored_tweets.scorer.CandidateFeaturesDataRecordFeature
-import com.twitter.home_mixer.product.scored_tweets.scorer.CommonFeaturesDataRecordFeature
-import com.twitter.home_mixer.product.scored_tweets.scorer.PredictedScoreFeature.PredictedScoreFeatures
-import com.twitter.home_mixer.util.CandidatesUtil.getOriginalAuthorId
-import com.twitter.inject.annotations.Flag
-import com.twitter.logpipeline.client.common.EventPublisher
-import com.twitter.ml.api.DataRecordMerger
-import com.twitter.product_mixer.core.feature.featuremap.datarecord.DataRecordConverter
-import com.twitter.product_mixer.core.feature.featuremap.datarecord.SpecificFeatures
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.identifier.SideEffectIdentifier
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.ml.cont_train.common.domain.non_scalding.CandidateAndCommonFeaturesStreamingUtils
-import com.twitter.timelines.ml.pldr.client.MysqlClientUtils
-import com.twitter.timelines.ml.pldr.client.VersionedMetadataCacheClient
-import com.twitter.timelines.ml.pldr.conversion.VersionIdAndFeatures
-import com.twitter.timelines.suggests.common.data_record_metadata.{thriftscala => drmd}
-import com.twitter.timelines.suggests.common.poly_data_record.{thriftjava => pldr}
-import com.twitter.timelines.util.stats.OptionObserver
-import com.twitter.util.Time
-import com.twitter.util.Try
-import com.twitter.util.logging.Logging
-import javax.inject.Inject
-import javax.inject.Named
-import javax.inject.Singleton
-import scala.collection.JavaConverters._
-
-/**
- * (1) Scribe common features sent to prediction service + some other features as PLDR format into logs
- * (2) Scribe candidate features sent to prediction service + some other features as PLDR format into another logs
- */
-@Singleton
-class ScribeServedCommonFeaturesAndCandidateFeaturesSideEffect @Inject() (
-  @Flag(DataRecordMetadataStoreConfigsYmlFlag) dataRecordMetadataStoreConfigsYml: String,
-  @Flag(ScribeServedCommonFeaturesAndCandidateFeaturesFlag) enableScribeServedCommonFeaturesAndCandidateFeatures: Boolean,
-  @Named(CommonFeaturesScribeEventPublisher) commonFeaturesScribeEventPublisher: EventPublisher[
-    pldr.PolyDataRecord
-  ],
-  @Named(CandidateFeaturesScribeEventPublisher) candidateFeaturesScribeEventPublisher: EventPublisher[
-    pldr.PolyDataRecord
-  ],
-  @Named(MinimumFeaturesScribeEventPublisher) minimumFeaturesScribeEventPublisher: EventPublisher[
-    pldr.PolyDataRecord
-  ],
-  statsReceiver: StatsReceiver,
-) extends PipelineResultSideEffect[ScoredTweetsQuery, ScoredTweetsResponse]
-    with PipelineResultSideEffect.Conditionally[ScoredTweetsQuery, ScoredTweetsResponse]
-    with Logging {
-
-  override val identifier: SideEffectIdentifier =
-    SideEffectIdentifier("ScribeServedCommonFeaturesAndCandidateFeatures")
-
-  private val drMerger = new DataRecordMerger
-  private val postScoringCandidateFeatures = SpecificFeatures(PredictedScoreFeatures)
-  private val postScoringCandidateFeaturesDataRecordAdapter =
-    new DataRecordConverter(postScoringCandidateFeatures)
-
-  private val scopedStatsReceiver = statsReceiver.scope(getClass.getSimpleName)
-  private val metadataFetchFailedCounter = scopedStatsReceiver.counter("metadataFetchFailed")
-  private val commonFeaturesScribeCounter = scopedStatsReceiver.counter("commonFeaturesScribe")
-  private val commonFeaturesPLDROptionObserver =
-    OptionObserver(scopedStatsReceiver.scope("commonFeaturesPLDR"))
-  private val candidateFeaturesScribeCounter =
-    scopedStatsReceiver.counter("candidateFeaturesScribe")
-  private val candidateFeaturesPLDROptionObserver =
-    OptionObserver(scopedStatsReceiver.scope("candidateFeaturesPLDR"))
-  private val minimumFeaturesPLDROptionObserver =
-    OptionObserver(scopedStatsReceiver.scope("minimumFeaturesPLDR"))
-  private val minimumFeaturesScribeCounter =
-    scopedStatsReceiver.counter("minimumFeaturesScribe")
-
-  lazy private val dataRecordMetadataStoreClient: Option[Client with Transactions] =
-    Try {
-      MysqlClientUtils.mysqlClientProvider(
-        MysqlClientUtils.parseConfigFromYaml(dataRecordMetadataStoreConfigsYml))
-    }.onFailure { e => info(s"Error building MySQL client: $e") }.toOption
-
-  lazy private val versionedMetadataCacheClientOpt: Option[
-    VersionedMetadataCacheClient[Map[drmd.FeaturesCategory, Option[VersionIdAndFeatures]]]
-  ] =
-    dataRecordMetadataStoreClient.map { mysqlClient =>
-      new VersionedMetadataCacheClient[Map[drmd.FeaturesCategory, Option[VersionIdAndFeatures]]](
-        maximumSize = 1,
-        expireDurationOpt = None,
-        mysqlClient = mysqlClient,
-        transform = CandidateAndCommonFeaturesStreamingUtils.metadataTransformer,
-        statsReceiver = statsReceiver
-      )
-    }
-
-  versionedMetadataCacheClientOpt.foreach { versionedMetadataCacheClient =>
-    versionedMetadataCacheClient
-      .metadataFetchTimerTask(
-        CandidateAndCommonFeaturesStreamingUtils.metadataFetchKey,
-        metadataFetchTimer = DefaultTimer,
-        metadataFetchInterval = 90.seconds,
-        metadataFetchFailedCounter = metadataFetchFailedCounter
-      )
-  }
-
-  override def onlyIf(
-    query: ScoredTweetsQuery,
-    selectedCandidates: Seq[CandidateWithDetails],
-    remainingCandidates: Seq[CandidateWithDetails],
-    droppedCandidates: Seq[CandidateWithDetails],
-    response: ScoredTweetsResponse
-  ): Boolean = enableScribeServedCommonFeaturesAndCandidateFeatures
-
-  override def apply(
-    inputs: PipelineResultSideEffect.Inputs[ScoredTweetsQuery, ScoredTweetsResponse]
-  ): Stitch[Unit] = {
-    Stitch.value {
-      val servedTimestamp: Long = Time.now.inMilliseconds
-      val nonMLCommonFeatures = NonMLCommonFeatures(
-        userId = inputs.query.getRequiredUserId,
-        predictionRequestId =
-          inputs.query.features.flatMap(_.getOrElse(ServedRequestIdFeature, None)),
-        servedTimestamp = servedTimestamp
-      )
-      val nonMLCommonFeaturesDataRecord =
-        NonMLCommonFeaturesAdapter.adaptToDataRecords(nonMLCommonFeatures).asScala.head
-
-      /**
-       * Steps of scribing common features
-       * (1) fetch common features as data record
-       * (2) extract additional feature as data record, e.g. predictionRequestId which is used as join key in downstream jobs
-       * (3) merge two data records above and convert the merged data record to pldr
-       * (4) publish pldr
-       */
-      val commonFeaturesDataRecordOpt =
-        inputs.selectedCandidates.headOption.map(_.features.get(CommonFeaturesDataRecordFeature))
-      val commonFeaturesPLDROpt = commonFeaturesDataRecordOpt.flatMap { commonFeaturesDataRecord =>
-        drMerger.merge(commonFeaturesDataRecord, nonMLCommonFeaturesDataRecord)
-
-        CandidateAndCommonFeaturesStreamingUtils.commonFeaturesToPolyDataRecord(
-          versionedMetadataCacheClientOpt = versionedMetadataCacheClientOpt,
-          commonFeatures = commonFeaturesDataRecord,
-          valueFormat = pldr.PolyDataRecord._Fields.LITE_COMPACT_DATA_RECORD
-        )
-      }
-
-      commonFeaturesPLDROptionObserver(commonFeaturesPLDROpt).foreach { pldr =>
-        commonFeaturesScribeEventPublisher.publish(pldr)
-        commonFeaturesScribeCounter.incr()
-      }
-
-      /**
-       * steps of scribing candidate features
-       * (1) fetch candidate features as data record
-       * (2) extract additional features (mostly non ML features including predicted scores, predictionRequestId, userId, tweetId)
-       * (3) merge data records and convert the merged data record into pldr
-       * (4) publish pldr
-       */
-      inputs.selectedCandidates.foreach { candidate =>
-        val candidateFeaturesDataRecord = candidate.features.get(CandidateFeaturesDataRecordFeature)
-
-        /**
-         * extract predicted scores as data record and merge it into original data record
-         */
-        val postScoringCandidateFeaturesDataRecord =
-          postScoringCandidateFeaturesDataRecordAdapter.toDataRecord(candidate.features)
-        drMerger.merge(candidateFeaturesDataRecord, postScoringCandidateFeaturesDataRecord)
-
-        /**
-         * extract non ML common features as data record and merge it into original data record
-         */
-        drMerger.merge(candidateFeaturesDataRecord, nonMLCommonFeaturesDataRecord)
-
-        /**
-         * extract non ML candidate features as data record and merge it into original data record
-         */
-        val nonMLCandidateFeatures = NonMLCandidateFeatures(
-          tweetId = candidate.candidateIdLong,
-          sourceTweetId = candidate.features.getOrElse(SourceTweetIdFeature, None),
-          originalAuthorId = getOriginalAuthorId(candidate.features)
-        )
-        val nonMLCandidateFeaturesDataRecord =
-          NonMLCandidateFeaturesAdapter.adaptToDataRecords(nonMLCandidateFeatures).asScala.head
-        drMerger.merge(candidateFeaturesDataRecord, nonMLCandidateFeaturesDataRecord)
-
-        val candidateFeaturesPLDROpt =
-          CandidateAndCommonFeaturesStreamingUtils.candidateFeaturesToPolyDataRecord(
-            versionedMetadataCacheClientOpt = versionedMetadataCacheClientOpt,
-            candidateFeatures = candidateFeaturesDataRecord,
-            valueFormat = pldr.PolyDataRecord._Fields.LITE_COMPACT_DATA_RECORD
-          )
-
-        candidateFeaturesPLDROptionObserver(candidateFeaturesPLDROpt).foreach { pldr =>
-          candidateFeaturesScribeEventPublisher.publish(pldr)
-          candidateFeaturesScribeCounter.incr()
-        }
-
-        // scribe minimum features which are used to join labels from client events.
-        val minimumFeaturesPLDROpt = candidateFeaturesPLDROpt
-          .map(CandidateAndCommonFeaturesStreamingUtils.extractMinimumFeaturesFromPldr)
-          .map(pldr.PolyDataRecord.dataRecord)
-        minimumFeaturesPLDROptionObserver(minimumFeaturesPLDROpt).foreach { pldr =>
-          minimumFeaturesScribeEventPublisher.publish(pldr)
-          minimumFeaturesScribeCounter.incr()
-        }
-      }
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/BUILD.bazel
deleted file mode 100644
index c1b5032db..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/BUILD.bazel
+++ /dev/null
@@ -1,82 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/javax/inject:javax.inject",
-        "ads-injection/lib/src/main/scala/com/twitter/goldfinch/api",
-        "finagle/finagle-memcached/src/main/scala",
-        "finatra/inject/inject-core/src/main/scala",
-        "finatra/inject/inject-core/src/main/scala/com/twitter/inject",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/candidate_pipeline",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/candidate_source",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/builder",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/decorator/urt/builder",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/feature_hydrator",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/filter",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/gate",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/selector",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/functional_component/side_effect",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/marshaller/timelines",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/following/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/param",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/service",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/util",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/candidate_source/tweetconvosvc",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/decorator/urt",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/candidate/param_gated",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/async",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/impressed_tweets",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/param_gated",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/social_graph",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/filter",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/gate",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/presentation/urt",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/premarshaller/urt",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/selector",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/side_effect",
-        "product-mixer/core/src/main/java/com/twitter/product_mixer/core/product/guice/scope",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/configapi",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/decorator",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/decorator/urt/builder",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/marshaller/response/urt",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/common/presentation",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/request",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/response/urt",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/response/urt/item",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/candidate",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/mixer",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/product",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product/guice",
-        "src/java/com/twitter/search/common/schema/base",
-        "src/java/com/twitter/search/common/schema/earlybird",
-        "src/java/com/twitter/search/common/util/lang",
-        "src/java/com/twitter/search/queryparser/query:core-query-nodes",
-        "src/java/com/twitter/search/queryparser/query/search:search-query-nodes",
-        "src/thrift/com/twitter/search:earlybird-scala",
-        "src/thrift/com/twitter/search/common:constants-java",
-        "src/thrift/com/twitter/tweetypie:service-scala",
-        "stitch/stitch-gizmoduck",
-        "stitch/stitch-tweetypie",
-        "stringcenter/client",
-        "stringcenter/client/src/main/java",
-        "timelinemixer/common/src/main/scala/com/twitter/timelinemixer/clients/manhattan",
-        "timelinemixer/server/src/main/scala/com/twitter/timelinemixer/injection/model/candidate",
-        "timelinemixer/server/src/main/scala/com/twitter/timelinemixer/injection/store/persistence",
-        "timelines/src/main/scala/com/twitter/timelines/clients/relevance_search",
-        "timelines/src/main/scala/com/twitter/timelines/injection/scribe",
-    ],
-    exports = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/param",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/decorator/urt",
-        "src/thrift/com/twitter/timelines/render:thrift-scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/SubscribedEarlybirdCandidatePipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/SubscribedEarlybirdCandidatePipelineConfig.scala
deleted file mode 100644
index c331f955b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/SubscribedEarlybirdCandidatePipelineConfig.scala
+++ /dev/null
@@ -1,64 +0,0 @@
-package com.twitter.home_mixer.product.subscribed
-
-import com.google.inject.Inject
-import com.twitter.home_mixer.functional_component.candidate_source.EarlybirdCandidateSource
-import com.twitter.home_mixer.product.subscribed.model.SubscribedQuery
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.SGSSubscribedUsersFeature
-import com.twitter.product_mixer.component_library.filter.TweetVisibilityFilter
-import com.twitter.product_mixer.component_library.gate.NonEmptySeqFeatureGate
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.functional_component.candidate_source.BaseCandidateSource
-import com.twitter.product_mixer.core.functional_component.filter.Filter
-import com.twitter.product_mixer.core.functional_component.gate.Gate
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineResultsTransformer
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.search.earlybird.{thriftscala => t}
-import com.twitter.spam.rtf.thriftscala.SafetyLevel.TimelineHomeSubscribed
-import com.twitter.stitch.tweetypie.{TweetyPie => TweetypieStitchClient}
-import com.twitter.tweetypie.thriftscala.TweetVisibilityPolicy
-
-class SubscribedEarlybirdCandidatePipelineConfig @Inject() (
-  earlybirdCandidateSource: EarlybirdCandidateSource,
-  tweetyPieStitchClient: TweetypieStitchClient,
-  subscribedEarlybirdQueryTransformer: SubscribedEarlybirdQueryTransformer)
-    extends CandidatePipelineConfig[
-      SubscribedQuery,
-      t.EarlybirdRequest,
-      t.ThriftSearchResult,
-      TweetCandidate
-    ] {
-  override val identifier: CandidatePipelineIdentifier =
-    CandidatePipelineIdentifier("SubscribedEarlybird")
-
-  override val candidateSource: BaseCandidateSource[t.EarlybirdRequest, t.ThriftSearchResult] =
-    earlybirdCandidateSource
-
-  override val gates: Seq[Gate[SubscribedQuery]] = Seq(
-    NonEmptySeqFeatureGate(SGSSubscribedUsersFeature)
-  )
-
-  override def filters: Seq[Filter[SubscribedQuery, TweetCandidate]] = Seq(
-    new TweetVisibilityFilter(
-      tweetyPieStitchClient,
-      TweetVisibilityPolicy.UserVisible,
-      TimelineHomeSubscribed
-    )
-  )
-
-  override val queryTransformer: CandidatePipelineQueryTransformer[
-    SubscribedQuery,
-    t.EarlybirdRequest
-  ] = subscribedEarlybirdQueryTransformer
-
-  override val featuresFromCandidateSourceTransformers: Seq[
-    CandidateFeatureTransformer[t.ThriftSearchResult]
-  ] = Seq(SubscribedEarlybirdResponseFeatureTransformer)
-
-  override val resultTransformer: CandidatePipelineResultsTransformer[
-    t.ThriftSearchResult,
-    TweetCandidate
-  ] = { sourceResult => TweetCandidate(id = sourceResult.id) }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/SubscribedEarlybirdQueryTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/SubscribedEarlybirdQueryTransformer.scala
deleted file mode 100644
index 6e0d57c13..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/SubscribedEarlybirdQueryTransformer.scala
+++ /dev/null
@@ -1,67 +0,0 @@
-package com.twitter.home_mixer.product.subscribed
-
-import com.twitter.finagle.thrift.ClientId
-import com.twitter.finagle.tracing.Trace
-import com.twitter.home_mixer.product.subscribed.model.SubscribedQuery
-import com.twitter.home_mixer.product.subscribed.param.SubscribedParam.ServerMaxResultsParam
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.SGSSubscribedUsersFeature
-import com.twitter.product_mixer.core.functional_component.transformer.CandidatePipelineQueryTransformer
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.BottomCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.GapCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.TopCursor
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.MalformedCursor
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.PipelineFailure
-import com.twitter.search.common.schema.earlybird.EarlybirdFieldConstants.EarlybirdFieldConstant
-import com.twitter.search.earlybird.{thriftscala => t}
-import com.twitter.search.queryparser.query.Conjunction
-import com.twitter.search.queryparser.query.search.SearchOperator
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-case class SubscribedEarlybirdQueryTransformer @Inject() (clientId: ClientId)
-    extends CandidatePipelineQueryTransformer[SubscribedQuery, t.EarlybirdRequest] {
-
-  override def transform(query: SubscribedQuery): t.EarlybirdRequest = {
-    val subscribedUserIds =
-      query.features.map(_.get(SGSSubscribedUsersFeature)).getOrElse(Seq.empty)
-
-    val subscribedUsersQuery = new SearchOperator.Builder()
-      .setType(SearchOperator.Type.FILTER)
-      .addOperand(EarlybirdFieldConstant.EXCLUSIVE_FILTER_TERM)
-      .build()
-
-    val searchQuery = query.pipelineCursor
-      .map { cursor =>
-        val sinceIdQuery =
-          (id: Long) => new SearchOperator(SearchOperator.Type.SINCE_ID, id.toString)
-        val maxIdQuery = // max ID is inclusive, so subtract 1
-          (id: Long) => new SearchOperator(SearchOperator.Type.MAX_ID, (id - 1).toString)
-
-        (cursor.cursorType, cursor.id, cursor.gapBoundaryId) match {
-          case (Some(TopCursor), Some(sinceId), _) =>
-            new Conjunction(sinceIdQuery(sinceId), subscribedUsersQuery)
-          case (Some(BottomCursor), Some(maxId), _) =>
-            new Conjunction(maxIdQuery(maxId), subscribedUsersQuery)
-          case (Some(GapCursor), Some(maxId), Some(sinceId)) =>
-            new Conjunction(sinceIdQuery(sinceId), maxIdQuery(maxId), subscribedUsersQuery)
-          case (Some(GapCursor), _, _) =>
-            throw PipelineFailure(MalformedCursor, "Invalid cursor " + cursor.toString)
-          case _ => subscribedUsersQuery
-        }
-      }.getOrElse(subscribedUsersQuery)
-
-    t.EarlybirdRequest(
-      searchQuery = t.ThriftSearchQuery(
-        serializedQuery = Some(searchQuery.serialize),
-        fromUserIDFilter64 = Some(subscribedUserIds),
-        numResults = query.requestedMaxResults.getOrElse(query.params(ServerMaxResultsParam)),
-        rankingMode = t.ThriftSearchRankingMode.Recency,
-      ),
-      getOlderResults = Some(true), // needed for archive access to older tweets
-      clientRequestID = Some(s"${Trace.id.traceId}"),
-      numResultsToReturnAtRoot = Some(query.params(ServerMaxResultsParam)),
-      clientId = Some(clientId.name),
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/SubscribedEarlybirdResponseFeatureTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/SubscribedEarlybirdResponseFeatureTransformer.scala
deleted file mode 100644
index a8136102c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/SubscribedEarlybirdResponseFeatureTransformer.scala
+++ /dev/null
@@ -1,38 +0,0 @@
-package com.twitter.home_mixer.product.subscribed
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceUserIdFeature
-import com.twitter.product_mixer.core.feature.Feature
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMapBuilder
-import com.twitter.product_mixer.core.functional_component.transformer.CandidateFeatureTransformer
-import com.twitter.product_mixer.core.model.common.identifier.TransformerIdentifier
-import com.twitter.search.earlybird.{thriftscala => t}
-
-object SubscribedEarlybirdResponseFeatureTransformer
-    extends CandidateFeatureTransformer[t.ThriftSearchResult] {
-
-  override val identifier: TransformerIdentifier =
-    TransformerIdentifier("SubscribedEarlybirdResponse")
-
-  override val features: Set[Feature[_, _]] = Set(
-    AuthorIdFeature,
-    InReplyToTweetIdFeature,
-    IsRetweetFeature,
-    SourceTweetIdFeature,
-    SourceUserIdFeature,
-  )
-
-  override def transform(candidate: t.ThriftSearchResult): FeatureMap = FeatureMapBuilder()
-    .add(AuthorIdFeature, candidate.tweetypieTweet.flatMap(_.coreData.map(_.userId)))
-    .add(
-      InReplyToTweetIdFeature,
-      candidate.tweetypieTweet.flatMap(_.coreData.flatMap(_.reply.flatMap(_.inReplyToStatusId))))
-    .add(IsRetweetFeature, candidate.metadata.exists(_.isRetweet.contains(true)))
-    .add(SourceTweetIdFeature, candidate.sourceTweetypieTweet.map(_.id))
-    .add(SourceUserIdFeature, candidate.sourceTweetypieTweet.flatMap(_.coreData.map(_.userId)))
-    .build()
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/SubscribedMixerPipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/SubscribedMixerPipelineConfig.scala
deleted file mode 100644
index 5b1f74b37..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/SubscribedMixerPipelineConfig.scala
+++ /dev/null
@@ -1,221 +0,0 @@
-package com.twitter.home_mixer.product.subscribed
-
-import com.twitter.clientapp.{thriftscala => ca}
-import com.twitter.home_mixer.candidate_pipeline.ConversationServiceCandidatePipelineConfigBuilder
-import com.twitter.home_mixer.candidate_pipeline.EditedTweetsCandidatePipelineConfig
-import com.twitter.home_mixer.candidate_pipeline.NewTweetsPillCandidatePipelineConfig
-import com.twitter.home_mixer.functional_component.decorator.HomeConversationServiceCandidateDecorator
-import com.twitter.home_mixer.functional_component.decorator.urt.builder.HomeFeedbackActionInfoBuilder
-import com.twitter.home_mixer.functional_component.feature_hydrator._
-import com.twitter.home_mixer.functional_component.selector.UpdateHomeClientEventDetails
-import com.twitter.home_mixer.functional_component.selector.UpdateNewTweetsPillDecoration
-import com.twitter.home_mixer.functional_component.side_effect._
-import com.twitter.home_mixer.model.GapIncludeInstruction
-import com.twitter.home_mixer.param.HomeGlobalParams.MaxNumberReplaceInstructionsParam
-import com.twitter.home_mixer.param.HomeMixerFlagName.ScribeClientEventsFlag
-import com.twitter.home_mixer.product.following.model.HomeMixerExternalStrings
-import com.twitter.home_mixer.product.subscribed.model.SubscribedQuery
-import com.twitter.home_mixer.product.subscribed.param.SubscribedParam.ServerMaxResultsParam
-import com.twitter.home_mixer.util.CandidatesUtil
-import com.twitter.inject.annotations.Flag
-import com.twitter.logpipeline.client.common.EventPublisher
-import com.twitter.product_mixer.component_library.feature_hydrator.query.async.AsyncQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.feature_hydrator.query.impressed_tweets.ImpressedTweetsQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.SGSFollowedUsersQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.feature_hydrator.query.social_graph.SGSSubscribedUsersQueryFeatureHydrator
-import com.twitter.product_mixer.component_library.gate.NonEmptyCandidatesGate
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.component_library.premarshaller.urt.UrtDomainMarshaller
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.AddEntriesWithReplaceAndShowAlertInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.OrderedBottomCursorBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.OrderedGapCursorBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.OrderedTopCursorBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ReplaceAllEntries
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ReplaceEntryInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.ShowAlertInstructionBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.StaticTimelineScribeConfigBuilder
-import com.twitter.product_mixer.component_library.premarshaller.urt.builder.UrtMetadataBuilder
-import com.twitter.product_mixer.component_library.selector.DropMaxCandidates
-import com.twitter.product_mixer.component_library.selector.InsertAppendResults
-import com.twitter.product_mixer.component_library.selector.SelectConditionally
-import com.twitter.product_mixer.component_library.selector.UpdateSortCandidates
-import com.twitter.product_mixer.core.functional_component.common.SpecificPipeline
-import com.twitter.product_mixer.core.functional_component.common.SpecificPipelines
-import com.twitter.product_mixer.core.functional_component.feature_hydrator.QueryFeatureHydrator
-import com.twitter.product_mixer.core.functional_component.marshaller.TransportMarshaller
-import com.twitter.product_mixer.core.functional_component.marshaller.response.urt.UrtTransportMarshaller
-import com.twitter.product_mixer.core.functional_component.premarshaller.DomainMarshaller
-import com.twitter.product_mixer.core.functional_component.selector.Selector
-import com.twitter.product_mixer.core.functional_component.side_effect.PipelineResultSideEffect
-import com.twitter.product_mixer.core.model.common.UniversalNoun
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.MixerPipelineIdentifier
-import com.twitter.product_mixer.core.model.marshalling.response.urt.Timeline
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineModule
-import com.twitter.product_mixer.core.model.marshalling.response.urt.TimelineScribeConfig
-import com.twitter.product_mixer.core.model.marshalling.response.urt.item.tweet.TweetItem
-import com.twitter.product_mixer.core.pipeline.FailOpenPolicy
-import com.twitter.product_mixer.core.pipeline.candidate.CandidatePipelineConfig
-import com.twitter.product_mixer.core.pipeline.candidate.DependentCandidatePipelineConfig
-import com.twitter.product_mixer.core.pipeline.mixer.MixerPipelineConfig
-import com.twitter.product_mixer.core.product.guice.scope.ProductScoped
-import com.twitter.stringcenter.client.StringCenter
-import com.twitter.timelines.render.{thriftscala => urt}
-import javax.inject.Inject
-import javax.inject.Provider
-import javax.inject.Singleton
-
-@Singleton
-class SubscribedMixerPipelineConfig @Inject() (
-  subscribedEarlybirdCandidatePipelineConfig: SubscribedEarlybirdCandidatePipelineConfig,
-  conversationServiceCandidatePipelineConfigBuilder: ConversationServiceCandidatePipelineConfigBuilder[
-    SubscribedQuery
-  ],
-  homeFeedbackActionInfoBuilder: HomeFeedbackActionInfoBuilder,
-  editedTweetsCandidatePipelineConfig: EditedTweetsCandidatePipelineConfig,
-  newTweetsPillCandidatePipelineConfig: NewTweetsPillCandidatePipelineConfig[SubscribedQuery],
-  dismissInfoQueryFeatureHydrator: DismissInfoQueryFeatureHydrator,
-  gizmoduckUserQueryFeatureHydrator: GizmoduckUserQueryFeatureHydrator,
-  requestQueryFeatureHydrator: RequestQueryFeatureHydrator[SubscribedQuery],
-  sgsFollowedUsersQueryFeatureHydrator: SGSFollowedUsersQueryFeatureHydrator,
-  sgsSubscribedUsersQueryFeatureHydrator: SGSSubscribedUsersQueryFeatureHydrator,
-  manhattanTweetImpressionsQueryFeatureHydrator: TweetImpressionsQueryFeatureHydrator[
-    SubscribedQuery
-  ],
-  memcacheTweetImpressionsQueryFeatureHydrator: ImpressedTweetsQueryFeatureHydrator,
-  publishClientSentImpressionsEventBusSideEffect: PublishClientSentImpressionsEventBusSideEffect,
-  publishClientSentImpressionsManhattanSideEffect: PublishClientSentImpressionsManhattanSideEffect,
-  homeTimelineServedCandidatesSideEffect: HomeScribeServedCandidatesSideEffect,
-  clientEventsScribeEventPublisher: EventPublisher[ca.LogEvent],
-  externalStrings: HomeMixerExternalStrings,
-  @ProductScoped stringCenterProvider: Provider[StringCenter],
-  urtTransportMarshaller: UrtTransportMarshaller,
-  @Flag(ScribeClientEventsFlag) enableScribeClientEvents: Boolean)
-    extends MixerPipelineConfig[SubscribedQuery, Timeline, urt.TimelineResponse] {
-
-  override val identifier: MixerPipelineIdentifier = MixerPipelineIdentifier("Subscribed")
-
-  private val dependentCandidatesStep = MixerPipelineConfig.dependentCandidatePipelinesStep
-  private val resultSelectorsStep = MixerPipelineConfig.resultSelectorsStep
-
-  override val fetchQueryFeatures: Seq[QueryFeatureHydrator[SubscribedQuery]] = Seq(
-    requestQueryFeatureHydrator,
-    sgsFollowedUsersQueryFeatureHydrator,
-    sgsSubscribedUsersQueryFeatureHydrator,
-    AsyncQueryFeatureHydrator(dependentCandidatesStep, dismissInfoQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(dependentCandidatesStep, gizmoduckUserQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(resultSelectorsStep, manhattanTweetImpressionsQueryFeatureHydrator),
-    AsyncQueryFeatureHydrator(resultSelectorsStep, memcacheTweetImpressionsQueryFeatureHydrator)
-  )
-
-  private val earlybirdCandidatePipelineScope =
-    SpecificPipeline(subscribedEarlybirdCandidatePipelineConfig.identifier)
-
-  private val conversationServiceCandidatePipelineConfig =
-    conversationServiceCandidatePipelineConfigBuilder.build(
-      Seq(NonEmptyCandidatesGate(earlybirdCandidatePipelineScope)),
-      HomeConversationServiceCandidateDecorator(homeFeedbackActionInfoBuilder)
-    )
-
-  override val candidatePipelines: Seq[CandidatePipelineConfig[SubscribedQuery, _, _, _]] =
-    Seq(subscribedEarlybirdCandidatePipelineConfig)
-
-  override val dependentCandidatePipelines: Seq[
-    DependentCandidatePipelineConfig[SubscribedQuery, _, _, _]
-  ] = Seq(
-    conversationServiceCandidatePipelineConfig,
-    editedTweetsCandidatePipelineConfig,
-    newTweetsPillCandidatePipelineConfig
-  )
-
-  override val failOpenPolicies: Map[CandidatePipelineIdentifier, FailOpenPolicy] = Map(
-    editedTweetsCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-    newTweetsPillCandidatePipelineConfig.identifier -> FailOpenPolicy.Always,
-  )
-
-  override val resultSelectors: Seq[Selector[SubscribedQuery]] = Seq(
-    UpdateSortCandidates(
-      ordering = CandidatesUtil.reverseChronTweetsOrdering,
-      candidatePipeline = conversationServiceCandidatePipelineConfig.identifier
-    ),
-    DropMaxCandidates(
-      candidatePipeline = editedTweetsCandidatePipelineConfig.identifier,
-      maxSelectionsParam = MaxNumberReplaceInstructionsParam
-    ),
-    DropMaxCandidates(
-      candidatePipeline = conversationServiceCandidatePipelineConfig.identifier,
-      maxSelectionsParam = ServerMaxResultsParam
-    ),
-    InsertAppendResults(candidatePipeline = conversationServiceCandidatePipelineConfig.identifier),
-    // This selector must come after the tweets are inserted into the results
-    UpdateNewTweetsPillDecoration(
-      pipelineScope = SpecificPipelines(
-        conversationServiceCandidatePipelineConfig.identifier,
-        newTweetsPillCandidatePipelineConfig.identifier
-      ),
-      stringCenter = stringCenterProvider.get(),
-      seeNewTweetsString = externalStrings.seeNewTweetsString,
-      tweetedString = externalStrings.tweetedString
-    ),
-    InsertAppendResults(candidatePipeline = editedTweetsCandidatePipelineConfig.identifier),
-    SelectConditionally(
-      selector =
-        InsertAppendResults(candidatePipeline = newTweetsPillCandidatePipelineConfig.identifier),
-      includeSelector = (_, _, results) => CandidatesUtil.containsType[TweetCandidate](results)
-    ),
-    UpdateHomeClientEventDetails(
-      candidatePipelines = Set(conversationServiceCandidatePipelineConfig.identifier)
-    ),
-  )
-
-  private val homeScribeClientEventSideEffect = HomeScribeClientEventSideEffect(
-    enableScribeClientEvents = enableScribeClientEvents,
-    logPipelinePublisher = clientEventsScribeEventPublisher,
-    injectedTweetsCandidatePipelineIdentifiers =
-      Seq(conversationServiceCandidatePipelineConfig.identifier),
-  )
-
-  override val resultSideEffects: Seq[PipelineResultSideEffect[SubscribedQuery, Timeline]] = Seq(
-    homeScribeClientEventSideEffect,
-    homeTimelineServedCandidatesSideEffect,
-    publishClientSentImpressionsEventBusSideEffect,
-    publishClientSentImpressionsManhattanSideEffect
-  )
-
-  override val domainMarshaller: DomainMarshaller[SubscribedQuery, Timeline] = {
-    val instructionBuilders = Seq(
-      ReplaceEntryInstructionBuilder(ReplaceAllEntries),
-      AddEntriesWithReplaceAndShowAlertInstructionBuilder(),
-      ShowAlertInstructionBuilder(),
-    )
-
-    val idSelector: PartialFunction[UniversalNoun[_], Long] = {
-      // exclude ads while determining tweet cursor values
-      case item: TweetItem if item.promotedMetadata.isEmpty => item.id
-      case module: TimelineModule
-          if module.items.headOption.exists(_.item.isInstanceOf[TweetItem]) =>
-        module.items.last.item match { case item: TweetItem => item.id }
-    }
-
-    val topCursorBuilder = OrderedTopCursorBuilder(idSelector)
-    val bottomCursorBuilder =
-      OrderedBottomCursorBuilder(idSelector, GapIncludeInstruction.inverse())
-    val gapCursorBuilder = OrderedGapCursorBuilder(idSelector, GapIncludeInstruction)
-
-    val metadataBuilder = UrtMetadataBuilder(
-      title = None,
-      scribeConfigBuilder = Some(
-        StaticTimelineScribeConfigBuilder(
-          TimelineScribeConfig(page = Some("subscribed"), section = None, entityToken = None)))
-    )
-
-    UrtDomainMarshaller(
-      instructionBuilders = instructionBuilders,
-      metadataBuilder = Some(metadataBuilder),
-      cursorBuilders = Seq(topCursorBuilder, bottomCursorBuilder, gapCursorBuilder)
-    )
-  }
-
-  override val transportMarshaller: TransportMarshaller[Timeline, urt.TimelineResponse] =
-    urtTransportMarshaller
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/SubscribedProductPipelineConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/SubscribedProductPipelineConfig.scala
deleted file mode 100644
index 0d524391a..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/SubscribedProductPipelineConfig.scala
+++ /dev/null
@@ -1,123 +0,0 @@
-package com.twitter.home_mixer.product.subscribed
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.home_mixer.marshaller.timelines.ChronologicalCursorUnmarshaller
-import com.twitter.home_mixer.model.request.HomeMixerRequest
-import com.twitter.home_mixer.model.request.SubscribedProduct
-import com.twitter.home_mixer.model.request.SubscribedProductContext
-import com.twitter.home_mixer.product.subscribed.model.SubscribedQuery
-import com.twitter.home_mixer.product.subscribed.param.SubscribedParam.ServerMaxResultsParam
-import com.twitter.home_mixer.service.HomeMixerAccessPolicy.DefaultHomeMixerAccessPolicy
-import com.twitter.home_mixer.service.HomeMixerAlertConfig.DefaultNotificationGroup
-import com.twitter.product_mixer.component_library.model.cursor.UrtOrderedCursor
-import com.twitter.product_mixer.component_library.premarshaller.cursor.UrtCursorSerializer
-import com.twitter.product_mixer.core.functional_component.common.access_policy.AccessPolicy
-import com.twitter.product_mixer.core.functional_component.common.alert.Alert
-import com.twitter.product_mixer.core.functional_component.common.alert.LatencyAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.P99
-import com.twitter.product_mixer.core.functional_component.common.alert.SuccessRateAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.ThroughputAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.predicate.TriggerIfAbove
-import com.twitter.product_mixer.core.functional_component.common.alert.predicate.TriggerIfBelow
-import com.twitter.product_mixer.core.functional_component.common.alert.predicate.TriggerIfLatencyAbove
-import com.twitter.product_mixer.core.model.common.identifier.ComponentIdentifier
-import com.twitter.product_mixer.core.model.common.identifier.ProductPipelineIdentifier
-import com.twitter.product_mixer.core.model.marshalling.request.Product
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.GapCursor
-import com.twitter.product_mixer.core.model.marshalling.response.urt.operation.TopCursor
-import com.twitter.product_mixer.core.pipeline.PipelineConfig
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.BadRequest
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.MalformedCursor
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.PipelineFailure
-import com.twitter.product_mixer.core.pipeline.product.ProductPipelineConfig
-import com.twitter.product_mixer.core.product.ProductParamConfig
-import com.twitter.product_mixer.core.util.SortIndexBuilder
-import com.twitter.timelines.configapi.Params
-import com.twitter.timelines.render.{thriftscala => urt}
-import com.twitter.timelines.util.RequestCursorSerializer
-import com.twitter.util.Time
-import com.twitter.util.Try
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class SubscribedProductPipelineConfig @Inject() (
-  subscribedMixerPipelineConfig: SubscribedMixerPipelineConfig,
-  subscribedParamConfig: param.SubscribedParamConfig)
-    extends ProductPipelineConfig[HomeMixerRequest, SubscribedQuery, urt.TimelineResponse] {
-
-  override val identifier: ProductPipelineIdentifier = ProductPipelineIdentifier("Subscribed")
-
-  override val product: Product = SubscribedProduct
-  override val paramConfig: ProductParamConfig = subscribedParamConfig
-
-  override def pipelineQueryTransformer(
-    request: HomeMixerRequest,
-    params: Params
-  ): SubscribedQuery = {
-    val context = request.productContext match {
-      case Some(context: SubscribedProductContext) => context
-      case _ => throw PipelineFailure(BadRequest, "SubscribedProductContext not found")
-    }
-
-    val debugOptions = request.debugParams.flatMap(_.debugOptions)
-
-    /**
-     * Unlike other clients, newly created tweets on Android have the sort index set to the current
-     * time instead of the top sort index + 1, so these tweets get stuck at the top of the timeline
-     * if subsequent timeline responses use the sort index from the previous response instead of
-     * the current time.
-     */
-    val pipelineCursor = request.serializedRequestCursor.flatMap { cursor =>
-      Try(UrtCursorSerializer.deserializeOrderedCursor(cursor))
-        .getOrElse(ChronologicalCursorUnmarshaller(RequestCursorSerializer.deserialize(cursor)))
-        .map {
-          case UrtOrderedCursor(_, id, Some(GapCursor), gapBoundaryId)
-              if id.isEmpty || gapBoundaryId.isEmpty =>
-            throw PipelineFailure(MalformedCursor, "Gap Cursor bounds not defined")
-          case topCursor @ UrtOrderedCursor(_, _, Some(TopCursor), _) =>
-            val queryTime = debugOptions.flatMap(_.requestTimeOverride).getOrElse(Time.now)
-            topCursor.copy(initialSortIndex = SortIndexBuilder.timeToId(queryTime))
-          case cursor => cursor
-        }
-    }
-
-    SubscribedQuery(
-      params = params,
-      clientContext = request.clientContext,
-      features = None,
-      pipelineCursor = pipelineCursor,
-      requestedMaxResults = Some(params(ServerMaxResultsParam)),
-      debugOptions = debugOptions,
-      deviceContext = context.deviceContext,
-      seenTweetIds = context.seenTweetIds
-    )
-  }
-
-  override val pipelines: Seq[PipelineConfig] = Seq(subscribedMixerPipelineConfig)
-
-  override def pipelineSelector(
-    query: SubscribedQuery
-  ): ComponentIdentifier = subscribedMixerPipelineConfig.identifier
-
-  override val alerts: Seq[Alert] = Seq(
-    SuccessRateAlert(
-      notificationGroup = DefaultNotificationGroup,
-      warnPredicate = TriggerIfBelow(99.9, 20, 30),
-      criticalPredicate = TriggerIfBelow(99.9, 30, 30),
-    ),
-    LatencyAlert(
-      notificationGroup = DefaultNotificationGroup,
-      percentile = P99,
-      warnPredicate = TriggerIfLatencyAbove(1100.millis, 15, 30),
-      criticalPredicate = TriggerIfLatencyAbove(1200.millis, 15, 30)
-    ),
-    ThroughputAlert(
-      notificationGroup = DefaultNotificationGroup,
-      warnPredicate = TriggerIfAbove(18000),
-      criticalPredicate = TriggerIfAbove(20000)
-    )
-  )
-
-  override val debugAccessPolicies: Set[AccessPolicy] = DefaultHomeMixerAccessPolicy
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/model/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/model/BUILD.bazel
deleted file mode 100644
index b821a8f8d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/model/BUILD.bazel
+++ /dev/null
@@ -1,20 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model/request",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/param",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/cursor",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/pipeline/candidate/flexible_injection_pipeline",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-        "stringcenter/client",
-        "stringcenter/client/src/main/java",
-    ],
-    exports = [
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/cursor",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/model/SubscribedQuery.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/model/SubscribedQuery.scala
deleted file mode 100644
index 2085ef54f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/model/SubscribedQuery.scala
+++ /dev/null
@@ -1,31 +0,0 @@
-package com.twitter.home_mixer.product.subscribed.model
-
-import com.twitter.home_mixer.model.request.DeviceContext
-import com.twitter.home_mixer.model.request.HasDeviceContext
-import com.twitter.home_mixer.model.request.HasSeenTweetIds
-import com.twitter.home_mixer.model.request.SubscribedProduct
-import com.twitter.product_mixer.component_library.model.cursor.UrtOrderedCursor
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.marshalling.request._
-import com.twitter.product_mixer.core.pipeline.HasPipelineCursor
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.timelines.configapi.Params
-
-case class SubscribedQuery(
-  override val params: Params,
-  override val clientContext: ClientContext,
-  override val pipelineCursor: Option[UrtOrderedCursor],
-  override val requestedMaxResults: Option[Int],
-  override val debugOptions: Option[DebugOptions],
-  override val features: Option[FeatureMap],
-  override val deviceContext: Option[DeviceContext],
-  override val seenTweetIds: Option[Seq[Long]])
-    extends PipelineQuery
-    with HasPipelineCursor[UrtOrderedCursor]
-    with HasDeviceContext
-    with HasSeenTweetIds {
-  override val product: Product = SubscribedProduct
-
-  override def withFeatureMap(features: FeatureMap): SubscribedQuery =
-    copy(features = Some(features))
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/param/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/param/BUILD.bazel
deleted file mode 100644
index a56e3a1fd..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/param/BUILD.bazel
+++ /dev/null
@@ -1,14 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/javax/inject:javax.inject",
-        "configapi/configapi-core/src/main/scala/com/twitter/timelines/configapi",
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/param/decider",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/decorator/urt",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-        "util/util-core/src/main/scala/com/twitter/conversions",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/param/SubscribedParam.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/param/SubscribedParam.scala
deleted file mode 100644
index 9e4ade43a..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/param/SubscribedParam.scala
+++ /dev/null
@@ -1,15 +0,0 @@
-package com.twitter.home_mixer.product.subscribed.param
-
-import com.twitter.timelines.configapi.FSBoundedParam
-
-object SubscribedParam {
-  val SupportedClientFSName = "subscribed_supported_client"
-
-  object ServerMaxResultsParam
-      extends FSBoundedParam[Int](
-        name = "subscribed_server_max_results",
-        default = 100,
-        min = 1,
-        max = 500
-      )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/param/SubscribedParamConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/param/SubscribedParamConfig.scala
deleted file mode 100644
index 58ce7ec35..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/product/subscribed/param/SubscribedParamConfig.scala
+++ /dev/null
@@ -1,18 +0,0 @@
-package com.twitter.home_mixer.product.subscribed.param
-
-import com.twitter.home_mixer.param.decider.DeciderKey
-import com.twitter.home_mixer.product.subscribed.param.SubscribedParam._
-import com.twitter.product_mixer.core.product.ProductParamConfig
-import com.twitter.servo.decider.DeciderKeyName
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class SubscribedParamConfig @Inject() () extends ProductParamConfig {
-  override val enabledDeciderKey: DeciderKeyName = DeciderKey.EnableSubscribedProduct
-  override val supportedClientFSName: String = SupportedClientFSName
-
-  override val boundedIntFSOverrides = Seq(
-    ServerMaxResultsParam
-  )
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/service/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/service/BUILD.bazel
deleted file mode 100644
index c0211ff72..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/service/BUILD.bazel
+++ /dev/null
@@ -1,15 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/javax/inject:javax.inject",
-        "configapi/configapi-core",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/product",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/product/registry",
-        "stitch/stitch-core",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/service/HomeMixerAccessPolicy.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/service/HomeMixerAccessPolicy.scala
deleted file mode 100644
index 853f4b56a..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/service/HomeMixerAccessPolicy.scala
+++ /dev/null
@@ -1,13 +0,0 @@
-package com.twitter.home_mixer.service
-
-import com.twitter.product_mixer.core.functional_component.common.access_policy.AccessPolicy
-import com.twitter.product_mixer.core.functional_component.common.access_policy.AllowedLdapGroups
-
-object HomeMixerAccessPolicy {
-
-  /**
-   * Access policies can be configured on a product-by-product basis but you may also want products
-   * to have a common policy.
-   */
-  val DefaultHomeMixerAccessPolicy: Set[AccessPolicy] = Set(AllowedLdapGroups(Set.empty[String]))
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/service/HomeMixerAlertConfig.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/service/HomeMixerAlertConfig.scala
deleted file mode 100644
index 597fd4d36..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/service/HomeMixerAlertConfig.scala
+++ /dev/null
@@ -1,66 +0,0 @@
-package com.twitter.home_mixer.service
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.product_mixer.core.functional_component.common.alert.Destination
-import com.twitter.product_mixer.core.functional_component.common.alert.EmptyResponseRateAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.LatencyAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.NotificationGroup
-import com.twitter.product_mixer.core.functional_component.common.alert.P99
-import com.twitter.product_mixer.core.functional_component.common.alert.Percentile
-import com.twitter.product_mixer.core.functional_component.common.alert.SuccessRateAlert
-import com.twitter.product_mixer.core.functional_component.common.alert.predicate.TriggerIfAbove
-import com.twitter.product_mixer.core.functional_component.common.alert.predicate.TriggerIfBelow
-import com.twitter.product_mixer.core.functional_component.common.alert.predicate.TriggerIfLatencyAbove
-import com.twitter.util.Duration
-
-/**
- * Notifications (email, pagerduty, etc) can be specific per-alert but it is common for multiple
- * products to share notification configuration.
- */
-object HomeMixerAlertConfig {
-  val DefaultNotificationGroup: NotificationGroup = NotificationGroup(
-    warn = Destination(emails = Seq("")),
-    critical = Destination(emails = Seq(""))
-  )
-
-  object BusinessHours {
-    val DefaultNotificationGroup: NotificationGroup = NotificationGroup(
-      warn = Destination(emails = Seq("")),
-      critical = Destination(emails =
-        Seq(""))
-    )
-
-    def defaultEmptyResponseRateAlert(warnThreshold: Double = 50, criticalThreshold: Double = 80) =
-      EmptyResponseRateAlert(
-        notificationGroup = DefaultNotificationGroup,
-        warnPredicate = TriggerIfAbove(warnThreshold),
-        criticalPredicate = TriggerIfAbove(criticalThreshold)
-      )
-
-    def defaultSuccessRateAlert(
-      threshold: Double = 99.5,
-      warnDatapointsPastThreshold: Int = 20,
-      criticalDatapointsPastThreshold: Int = 30,
-      duration: Int = 30
-    ) = SuccessRateAlert(
-      notificationGroup = DefaultNotificationGroup,
-      warnPredicate = TriggerIfBelow(threshold, warnDatapointsPastThreshold, duration),
-      criticalPredicate = TriggerIfBelow(threshold, criticalDatapointsPastThreshold, duration),
-    )
-
-    def defaultLatencyAlert(
-      latencyThreshold: Duration = 200.millis,
-      warningDatapointsPastThreshold: Int = 15,
-      criticalDatapointsPastThreshold: Int = 30,
-      duration: Int = 30,
-      percentile: Percentile = P99
-    ): LatencyAlert = LatencyAlert(
-      notificationGroup = DefaultNotificationGroup,
-      percentile = percentile,
-      warnPredicate =
-        TriggerIfLatencyAbove(latencyThreshold, warningDatapointsPastThreshold, duration),
-      criticalPredicate =
-        TriggerIfLatencyAbove(latencyThreshold, criticalDatapointsPastThreshold, duration)
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/service/ScoredTweetsService.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/service/ScoredTweetsService.scala
deleted file mode 100644
index 158e5ee45..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/service/ScoredTweetsService.scala
+++ /dev/null
@@ -1,24 +0,0 @@
-package com.twitter.home_mixer.service
-
-import com.twitter.home_mixer.{thriftscala => t}
-import com.twitter.product_mixer.core.model.marshalling.request.Request
-import com.twitter.product_mixer.core.pipeline.product.ProductPipelineRequest
-import com.twitter.product_mixer.core.product.registry.ProductPipelineRegistry
-import com.twitter.stitch.Stitch
-import com.twitter.timelines.configapi.Params
-import javax.inject.Inject
-import javax.inject.Singleton
-import scala.reflect.runtime.universe._
-
-@Singleton
-class ScoredTweetsService @Inject() (productPipelineRegistry: ProductPipelineRegistry) {
-
-  def getScoredTweetsResponse[RequestType <: Request](
-    request: RequestType,
-    params: Params
-  )(
-    implicit requestTypeTag: TypeTag[RequestType]
-  ): Stitch[t.ScoredTweetsResponse] = productPipelineRegistry
-    .getProductPipeline[RequestType, t.ScoredTweetsResponse](request.product)
-    .process(ProductPipelineRequest(request, params))
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/store/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/store/BUILD.bazel
deleted file mode 100644
index c4855d9e7..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/store/BUILD.bazel
+++ /dev/null
@@ -1,13 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "3rdparty/jvm/com/twitter/bijection:scrooge",
-        "3rdparty/jvm/com/twitter/storehaus:core",
-        "src/thrift/com/twitter/wtf/candidate:wtf-candidate-scala",
-        "stitch/stitch-core",
-        "storage/clients/manhattan/client/src/main/scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/store/RealGraphInNetworkScoresStore.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/store/RealGraphInNetworkScoresStore.scala
deleted file mode 100644
index ce0b182be..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/store/RealGraphInNetworkScoresStore.scala
+++ /dev/null
@@ -1,34 +0,0 @@
-package com.twitter.home_mixer.store
-
-import com.twitter.bijection.Injection
-import com.twitter.home_mixer.store.ManhattanRealGraphKVDescriptor._
-import com.twitter.stitch.Stitch
-import com.twitter.storage.client.manhattan.bijections.Bijections
-import com.twitter.storage.client.manhattan.bijections.Bijections.BinaryScalaInjection
-import com.twitter.storage.client.manhattan.kv.ManhattanKVEndpoint
-import com.twitter.storage.client.manhattan.kv.impl.ReadOnlyKeyDescriptor
-import com.twitter.storage.client.manhattan.kv.impl.ValueDescriptor
-import com.twitter.storehaus.ReadableStore
-import com.twitter.util.Future
-import com.twitter.wtf.candidate.{thriftscala => wtf}
-
-object ManhattanRealGraphKVDescriptor {
-  implicit val byteArray2Buf = Bijections.BytesBijection
-
-  val realGraphDatasetName = "real_graph_scores_in"
-  val keyInjection = Injection.connect[Long, Array[Byte]].andThen(Bijections.BytesInjection)
-  val keyDesc = ReadOnlyKeyDescriptor(keyInjection)
-  val valueDesc = ValueDescriptor(BinaryScalaInjection(wtf.CandidateSeq))
-  val realGraphDatasetKey = keyDesc.withDataset(realGraphDatasetName)
-}
-
-/**
- * Hydrates real graph in network scores for a viewer
- */
-class RealGraphInNetworkScoresStore(manhattanKVEndpoint: ManhattanKVEndpoint)
-    extends ReadableStore[Long, Seq[wtf.Candidate]] {
-
-  override def get(viewerId: Long): Future[Option[Seq[wtf.Candidate]]] = Stitch
-    .run(manhattanKVEndpoint.get(realGraphDatasetKey.withPkey(viewerId), valueDesc))
-    .map(_.map(mhResponse => mhResponse.contents.candidates))
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/BUILD.bazel
deleted file mode 100644
index 8e04fa11f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/BUILD.bazel
+++ /dev/null
@@ -1,25 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/feature_hydrator/query/impressed_tweets",
-        "product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/model/candidate",
-        "product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/common/presentation",
-        "servo/repo/src/main/scala",
-        "snowflake/src/main/scala/com/twitter/snowflake/id",
-        "src/java/com/twitter/ml/api:api-base",
-        "src/java/com/twitter/ml/api/util",
-        "src/java/com/twitter/search/common/util/lang",
-        "src/scala/com/twitter/ml/api/util",
-        "src/thrift/com/twitter/ml/api:data-java",
-        "src/thrift/com/twitter/search/common:constants-java",
-        "src/thrift/com/twitter/search/common:constants-scala",
-        "src/thrift/com/twitter/service/metastore/gen:thrift-java",
-        "src/thrift/com/twitter/service/metastore/gen:thrift-scala",
-        "storage/clients/manhattan/client/src/main/scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/CachedScoredTweetsHelper.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/CachedScoredTweetsHelper.scala
deleted file mode 100644
index e0fbdd76f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/CachedScoredTweetsHelper.scala
+++ /dev/null
@@ -1,50 +0,0 @@
-package com.twitter.home_mixer.util
-
-import com.twitter.home_mixer.model.HomeFeatures.CachedScoredTweetsFeature
-import com.twitter.home_mixer.{thriftscala => hmt}
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.common.identifier.CandidatePipelineIdentifier
-import com.twitter.snowflake.id.SnowflakeId
-import com.twitter.util.Time
-
-object CachedScoredTweetsHelper {
-
-  def tweetImpressionsAndCachedScoredTweets(
-    features: FeatureMap,
-    candidatePipelineIdentifier: CandidatePipelineIdentifier
-  ): Seq[Long] = {
-    val tweetImpressions = TweetImpressionsHelper.tweetImpressions(features)
-    val cachedScoredTweets = features
-      .getOrElse(CachedScoredTweetsFeature, Seq.empty)
-      .filter { tweet =>
-        tweet.candidatePipelineIdentifier.exists(
-          CandidatePipelineIdentifier(_).equals(candidatePipelineIdentifier))
-      }.map(_.tweetId)
-
-    (tweetImpressions ++ cachedScoredTweets).toSeq
-  }
-
-  def tweetImpressionsAndCachedScoredTweetsInRange(
-    features: FeatureMap,
-    candidatePipelineIdentifier: CandidatePipelineIdentifier,
-    maxNumImpressions: Int,
-    sinceTime: Time,
-    untilTime: Time
-  ): Seq[Long] =
-    tweetImpressionsAndCachedScoredTweets(features, candidatePipelineIdentifier)
-      .filter { tweetId => SnowflakeId.isSnowflakeId(tweetId) }
-      .filter { tweetId =>
-        val creationTime = SnowflakeId.timeFromId(tweetId)
-        sinceTime <= creationTime && untilTime >= creationTime
-      }.take(maxNumImpressions)
-
-  def unseenCachedScoredTweets(
-    features: FeatureMap
-  ): Seq[hmt.ScoredTweet] = {
-    val seenTweetIds = TweetImpressionsHelper.tweetImpressions(features)
-
-    features
-      .getOrElse(CachedScoredTweetsFeature, Seq.empty)
-      .filter(tweet => !seenTweetIds.contains(tweet.tweetId))
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/CandidatesUtil.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/CandidatesUtil.scala
deleted file mode 100644
index 06fe5646c..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/CandidatesUtil.scala
+++ /dev/null
@@ -1,116 +0,0 @@
-package com.twitter.home_mixer.util
-
-import com.twitter.home_mixer.model.HomeFeatures.AuthorIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.FavoritedByUserIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.HasImageFeature
-import com.twitter.home_mixer.model.HomeFeatures.InReplyToTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.IsRetweetFeature
-import com.twitter.home_mixer.model.HomeFeatures.MediaUnderstandingAnnotationIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.RepliedByEngagerIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.RetweetedByEngagerIdsFeature
-import com.twitter.home_mixer.model.HomeFeatures.ScoreFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceTweetIdFeature
-import com.twitter.home_mixer.model.HomeFeatures.SourceUserIdFeature
-import com.twitter.product_mixer.component_library.model.candidate.CursorCandidate
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-import com.twitter.product_mixer.core.model.common.UniversalNoun
-import com.twitter.product_mixer.core.model.common.presentation.CandidateWithDetails
-import com.twitter.product_mixer.core.model.common.presentation.ItemCandidateWithDetails
-import com.twitter.product_mixer.core.model.common.presentation.ModuleCandidateWithDetails
-import com.twitter.product_mixer.core.pipeline.PipelineQuery
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.PipelineFailure
-import com.twitter.product_mixer.core.pipeline.pipeline_failure.UnexpectedCandidateResult
-import scala.reflect.ClassTag
-
-object CandidatesUtil {
-  def getItemCandidates(candidates: Seq[CandidateWithDetails]): Seq[ItemCandidateWithDetails] = {
-    candidates.collect {
-      case item: ItemCandidateWithDetails if !item.isCandidateType[CursorCandidate] => Seq(item)
-      case module: ModuleCandidateWithDetails => module.candidates
-    }.flatten
-  }
-
-  def getItemCandidatesWithOnlyModuleLast(
-    candidates: Seq[CandidateWithDetails]
-  ): Seq[ItemCandidateWithDetails] = {
-    candidates.collect {
-      case item: ItemCandidateWithDetails if !item.isCandidateType[CursorCandidate] => item
-      case module: ModuleCandidateWithDetails => module.candidates.last
-    }
-  }
-
-  def containsType[CandidateType <: UniversalNoun[_]](
-    candidates: Seq[CandidateWithDetails]
-  )(
-    implicit tag: ClassTag[CandidateType]
-  ): Boolean = candidates.exists {
-    case ItemCandidateWithDetails(_: CandidateType, _, _) => true
-    case module: ModuleCandidateWithDetails =>
-      module.candidates.head.isCandidateType[CandidateType]()
-    case _ => false
-  }
-
-  def getOriginalTweetId(candidate: CandidateWithFeatures[TweetCandidate]): Long = {
-    if (candidate.features.getOrElse(IsRetweetFeature, false))
-      candidate.features.getOrElse(SourceTweetIdFeature, None).getOrElse(candidate.candidate.id)
-    else
-      candidate.candidate.id
-  }
-
-  def getOriginalAuthorId(candidateFeatures: FeatureMap): Option[Long] =
-    if (candidateFeatures.getOrElse(IsRetweetFeature, false))
-      candidateFeatures.getOrElse(SourceUserIdFeature, None)
-    else candidateFeatures.getOrElse(AuthorIdFeature, None)
-
-  def isOriginalTweet(candidate: CandidateWithFeatures[TweetCandidate]): Boolean =
-    !candidate.features.getOrElse(IsRetweetFeature, false) &&
-      candidate.features.getOrElse(InReplyToTweetIdFeature, None).isEmpty
-
-  def getEngagerUserIds(
-    candidateFeatures: FeatureMap
-  ): Seq[Long] = {
-    candidateFeatures.getOrElse(FavoritedByUserIdsFeature, Seq.empty) ++
-      candidateFeatures.getOrElse(RetweetedByEngagerIdsFeature, Seq.empty) ++
-      candidateFeatures.getOrElse(RepliedByEngagerIdsFeature, Seq.empty)
-  }
-
-  def getMediaUnderstandingAnnotationIds(
-    candidateFeatures: FeatureMap
-  ): Seq[Long] = {
-    if (candidateFeatures.get(HasImageFeature))
-      candidateFeatures.getOrElse(MediaUnderstandingAnnotationIdsFeature, Seq.empty)
-    else Seq.empty
-  }
-
-  def getTweetIdAndSourceId(candidate: CandidateWithFeatures[TweetCandidate]): Seq[Long] =
-    Seq(candidate.candidate.id) ++ candidate.features.getOrElse(SourceTweetIdFeature, None)
-
-  def isAuthoredByViewer(query: PipelineQuery, candidateFeatures: FeatureMap): Boolean =
-    candidateFeatures.getOrElse(AuthorIdFeature, None).contains(query.getRequiredUserId) ||
-      (candidateFeatures.getOrElse(IsRetweetFeature, false) &&
-        candidateFeatures.getOrElse(SourceUserIdFeature, None).contains(query.getRequiredUserId))
-
-  val reverseChronTweetsOrdering: Ordering[CandidateWithDetails] =
-    Ordering.by[CandidateWithDetails, Long] {
-      case ItemCandidateWithDetails(candidate: TweetCandidate, _, _) => -candidate.id
-      case ModuleCandidateWithDetails(candidates, _, _) if candidates.nonEmpty =>
-        -candidates.last.candidateIdLong
-      case _ => throw PipelineFailure(UnexpectedCandidateResult, "Invalid candidate type")
-    }
-
-  val scoreOrdering: Ordering[CandidateWithDetails] = Ordering.by[CandidateWithDetails, Double] {
-    case ItemCandidateWithDetails(_, _, features) =>
-      -features.getOrElse(ScoreFeature, None).getOrElse(0.0)
-    case ModuleCandidateWithDetails(candidates, _, _) =>
-      -candidates.last.features.getOrElse(ScoreFeature, None).getOrElse(0.0)
-    case _ => throw PipelineFailure(UnexpectedCandidateResult, "Invalid candidate type")
-  }
-
-  val conversationModuleTweetsOrdering: Ordering[CandidateWithDetails] =
-    Ordering.by[CandidateWithDetails, Long] {
-      case ItemCandidateWithDetails(candidate: TweetCandidate, _, _) => candidate.id
-      case _ => throw PipelineFailure(UnexpectedCandidateResult, "Only Item candidate expected")
-    }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/DataRecordUtil.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/DataRecordUtil.scala
deleted file mode 100644
index b972b8158..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/DataRecordUtil.scala
+++ /dev/null
@@ -1,31 +0,0 @@
-package com.twitter.home_mixer.util
-
-import com.twitter.ml.api.DataRecord
-import com.twitter.ml.api.FeatureContext
-import com.twitter.ml.api.util.SRichDataRecord
-import com.twitter.ml.api.Feature
-import java.lang.{Double => JDouble}
-
-object DataRecordUtil {
-  def applyRename(
-    dataRecord: DataRecord,
-    featureContext: FeatureContext,
-    renamedFeatureContext: FeatureContext,
-    featureRenamingMap: Map[Feature[_], Feature[_]]
-  ): DataRecord = {
-    val richFullDr = new SRichDataRecord(dataRecord, featureContext)
-    val richNewDr = new SRichDataRecord(new DataRecord, renamedFeatureContext)
-    val featureIterator = featureContext.iterator()
-    featureIterator.forEachRemaining { feature =>
-      if (richFullDr.hasFeature(feature)) {
-        val renamedFeature = featureRenamingMap.getOrElse(feature, feature)
-
-        val typedFeature = feature.asInstanceOf[Feature[JDouble]]
-        val typedRenamedFeature = renamedFeature.asInstanceOf[Feature[JDouble]]
-
-        richNewDr.setFeatureValue(typedRenamedFeature, richFullDr.getFeatureValue(typedFeature))
-      }
-    }
-    richNewDr.getRecord
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/InjectionTransformer.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/InjectionTransformer.scala
deleted file mode 100644
index f45102f37..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/InjectionTransformer.scala
+++ /dev/null
@@ -1,43 +0,0 @@
-package com.twitter.home_mixer.util
-
-import com.twitter.bijection.Injection
-import com.twitter.io.Buf
-import com.twitter.servo.util.Transformer
-import com.twitter.storage.client.manhattan.bijections.Bijections
-import com.twitter.util.Return
-import com.twitter.util.Try
-import java.nio.ByteBuffer
-
-object InjectionTransformerImplicits {
-  implicit class ByteArrayInjectionToByteBufferTransformer[A](baInj: Injection[A, Array[Byte]]) {
-
-    private val bbInj: Injection[A, ByteBuffer] = baInj
-      .andThen(Bijections.byteArray2Buf)
-      .andThen(Bijections.byteBuffer2Buf.inverse)
-
-    def toByteBufferTransformer(): Transformer[A, ByteBuffer] = new InjectionTransformer(bbInj)
-    def toByteArrayTransformer(): Transformer[A, Array[Byte]] = new InjectionTransformer(baInj)
-  }
-
-  implicit class BufInjectionToByteBufferTransformer[A](bufInj: Injection[A, Buf]) {
-
-    private val bbInj: Injection[A, ByteBuffer] = bufInj.andThen(Bijections.byteBuffer2Buf.inverse)
-    private val baInj: Injection[A, Array[Byte]] = bufInj.andThen(Bijections.byteArray2Buf.inverse)
-
-    def toByteBufferTransformer(): Transformer[A, ByteBuffer] = new InjectionTransformer(bbInj)
-    def toByteArrayTransformer(): Transformer[A, Array[Byte]] = new InjectionTransformer(baInj)
-  }
-
-  implicit class ByteBufferInjectionToByteBufferTransformer[A](bbInj: Injection[A, ByteBuffer]) {
-
-    private val baInj: Injection[A, Array[Byte]] = bbInj.andThen(Bijections.bb2ba)
-
-    def toByteBufferTransformer(): Transformer[A, ByteBuffer] = new InjectionTransformer(bbInj)
-    def toByteArrayTransformer(): Transformer[A, Array[Byte]] = new InjectionTransformer(baInj)
-  }
-}
-
-class InjectionTransformer[A, B](inj: Injection[A, B]) extends Transformer[A, B] {
-  override def to(a: A): Try[B] = Return(inj(a))
-  override def from(b: B): Try[A] = Try.fromScala(inj.invert(b))
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/LanguageUtil.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/LanguageUtil.scala
deleted file mode 100644
index 23c77c27f..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/LanguageUtil.scala
+++ /dev/null
@@ -1,93 +0,0 @@
-package com.twitter.home_mixer.util
-
-import com.twitter.search.common.constants.{thriftscala => scc}
-import com.twitter.search.common.util.lang.ThriftLanguageUtil
-import com.twitter.service.metastore.gen.{thriftscala => smg}
-
-object LanguageUtil {
-
-  private val DefaultMinProducedLanguageRatio = 0.05
-  private val DefaultMinConsumedLanguageConfidence = 0.8
-
-  /**
-   * Computes a list of languages based on UserLanguages information retrieved from Metastore.
-   *
-   * The list is sorted in descending order of confidence score associated with each language.
-   * That is, language with highest confidence value is in index 0.
-   */
-  def computeLanguages(
-    userLanguages: smg.UserLanguages,
-    minProducedLanguageRatio: Double = DefaultMinProducedLanguageRatio,
-    minConsumedLanguageConfidence: Double = DefaultMinConsumedLanguageConfidence
-  ): Seq[scc.ThriftLanguage] = {
-    val languageConfidenceMap = computeLanguageConfidenceMap(
-      userLanguages,
-      minProducedLanguageRatio,
-      minConsumedLanguageConfidence
-    )
-    languageConfidenceMap.toSeq.sortBy(-_._2).map(_._1) // _1 = language, _2 = score
-  }
-
-  /**
-   * Computes confidence map based on UserLanguages information retrieved from Metastore.
-   * where,
-   * key   = language code
-   * value = level of confidence that the language is applicable to a user.
-   */
-  private def computeLanguageConfidenceMap(
-    userLanguages: smg.UserLanguages,
-    minProducedLanguageRatio: Double,
-    minConsumedLanguageConfidence: Double
-  ): Map[scc.ThriftLanguage, Double] = {
-
-    val producedLanguages = getLanguageMap(userLanguages.produced)
-    val consumedLanguages = getLanguageMap(userLanguages.consumed)
-    val languages = (producedLanguages.keys ++ consumedLanguages.keys).toSet
-    var maxConfidence = 0.0
-
-    val confidenceMap = languages.map { language =>
-      val produceRatio = producedLanguages
-        .get(language)
-        .map { score => if (score < minProducedLanguageRatio) 0.0 else score }
-        .getOrElse(0.0)
-
-      val consumeConfidence = consumedLanguages
-        .get(language)
-        .map { score => if (score < minConsumedLanguageConfidence) 0.0 else score }
-        .getOrElse(0.0)
-
-      val overallConfidence = (0.3 + 4 * produceRatio) * (0.1 + consumeConfidence)
-      maxConfidence = Math.max(maxConfidence, overallConfidence)
-
-      (language -> overallConfidence)
-    }.toMap
-
-    val normalizedConfidenceMap = if (maxConfidence > 0) {
-      confidenceMap.map {
-        case (language, confidenceScore) =>
-          val normalizedScore = (confidenceScore / maxConfidence * 0.9) + 0.1
-          (language -> normalizedScore)
-      }
-    } else {
-      confidenceMap
-    }
-    normalizedConfidenceMap
-  }
-
-  private def getLanguageMap(
-    scoredLanguages: Seq[smg.ScoredString]
-  ): Map[scc.ThriftLanguage, Double] = {
-    scoredLanguages.flatMap { scoredLanguage =>
-      getThriftLanguage(scoredLanguage.item).map { language => (language -> scoredLanguage.weight) }
-    }.toMap
-  }
-
-  private def getThriftLanguage(languageName: String): Option[scc.ThriftLanguage] = {
-    val languageOrdinal = ThriftLanguageUtil.getThriftLanguageOf(languageName).ordinal
-    val language = scc.ThriftLanguage(languageOrdinal)
-    language match {
-      case scc.ThriftLanguage.Unknown => None
-      case _ => Some(language)
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/MissingKeyException.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/MissingKeyException.scala
deleted file mode 100644
index ae8fd4ded..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/MissingKeyException.scala
+++ /dev/null
@@ -1,5 +0,0 @@
-package com.twitter.home_mixer.util
-
-object MissingKeyException extends Exception("Missing key") {
-  override def toString: String = getMessage
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/ObservedKeyValueResultHandler.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/ObservedKeyValueResultHandler.scala
deleted file mode 100644
index 0cd0cd60b..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/ObservedKeyValueResultHandler.scala
+++ /dev/null
@@ -1,43 +0,0 @@
-package com.twitter.home_mixer.util
-
-import com.twitter.finagle.stats.StatsReceiver
-import com.twitter.servo.keyvalue.KeyValueResult
-import com.twitter.util.Return
-import com.twitter.util.Throw
-import com.twitter.util.Try
-
-trait ObservedKeyValueResultHandler {
-  val statsReceiver: StatsReceiver
-  val statScope: String
-
-  private lazy val scopedStatsReceiver = statsReceiver.scope(statScope)
-  private lazy val keyTotalCounter = scopedStatsReceiver.counter("key/total")
-  private lazy val keyFoundCounter = scopedStatsReceiver.counter("key/found")
-  private lazy val keyLossCounter = scopedStatsReceiver.counter("key/loss")
-  private lazy val keyFailureCounter = scopedStatsReceiver.counter("key/failure")
-
-  def observedGet[K, V](
-    key: Option[K],
-    keyValueResult: KeyValueResult[K, V],
-  ): Try[Option[V]] = {
-    if (key.nonEmpty) {
-      keyTotalCounter.incr()
-      keyValueResult(key.get) match {
-        case Return(Some(value)) =>
-          keyFoundCounter.incr()
-          Return(Some(value))
-        case Return(None) =>
-          keyLossCounter.incr()
-          Return(None)
-        case Throw(exception) =>
-          keyFailureCounter.incr()
-          Throw(exception)
-        case _ =>
-          // never reaches here
-          Return(None)
-      }
-    } else {
-      Throw(MissingKeyException)
-    }
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/ReplyRetweetUtil.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/ReplyRetweetUtil.scala
deleted file mode 100644
index 13758ec5d..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/ReplyRetweetUtil.scala
+++ /dev/null
@@ -1,120 +0,0 @@
-package com.twitter.home_mixer.util
-
-import com.twitter.home_mixer.model.HomeFeatures._
-import com.twitter.product_mixer.component_library.model.candidate.TweetCandidate
-import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
-
-object ReplyRetweetUtil {
-
-  def isEligibleReply(candidate: CandidateWithFeatures[TweetCandidate]): Boolean = {
-    candidate.features.getOrElse(InReplyToTweetIdFeature, None).nonEmpty &&
-    !candidate.features.getOrElse(IsRetweetFeature, false)
-  }
-
-  /**
-   * Builds a map from reply tweet to all ancestors that are also hydrated candidates. If a reply
-   * does not have any ancestors which are also candidates, it will not add to the returned Map.
-   * Make sure ancestors are bottom-up ordered such that:
-   * (1) if parent tweet is a candidate, it should be the first item at the returned ancestors;
-   * (2) if root tweet is a candidate, it should be the last item at the returned ancestors.
-   * Retweets of replies or replies to retweets are not included.
-   */
-  def replyToAncestorTweetCandidatesMap(
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Map[Long, Seq[CandidateWithFeatures[TweetCandidate]]] = {
-    val replyToAncestorTweetIdsMap: Map[Long, Seq[Long]] =
-      candidates.flatMap { candidate =>
-        if (isEligibleReply(candidate)) {
-          val ancestorIds =
-            if (candidate.features.getOrElse(AncestorsFeature, Seq.empty).nonEmpty) {
-              candidate.features.getOrElse(AncestorsFeature, Seq.empty).map(_.tweetId)
-            } else {
-              Seq(
-                candidate.features.getOrElse(InReplyToTweetIdFeature, None),
-                candidate.features.getOrElse(ConversationModuleIdFeature, None)
-              ).flatten.distinct
-            }
-          Some(candidate.candidate.id -> ancestorIds)
-        } else {
-          None
-        }
-      }.toMap
-
-    val ancestorTweetIds = replyToAncestorTweetIdsMap.values.flatten.toSet
-    val ancestorTweetsMapById: Map[Long, CandidateWithFeatures[TweetCandidate]] = candidates
-      .filter { maybeAncestor =>
-        ancestorTweetIds.contains(maybeAncestor.candidate.id)
-      }.map { ancestor =>
-        ancestor.candidate.id -> ancestor
-      }.toMap
-
-    replyToAncestorTweetIdsMap
-      .mapValues { ancestorTweetIds =>
-        ancestorTweetIds.flatMap { ancestorTweetId =>
-          ancestorTweetsMapById.get(ancestorTweetId)
-        }
-      }.filter {
-        case (reply, ancestors) =>
-          ancestors.nonEmpty
-      }
-  }
-
-  /**
-   * This map is the opposite of [[replyToAncestorTweetCandidatesMap]].
-   * Builds a map from ancestor tweet to all descendant replies that are also hydrated candidates.
-   * Currently, we only return two ancestors at most: one is inReplyToTweetId and the other
-   * is conversationId.
-   * Retweets of replies are not included.
-   */
-  def ancestorTweetIdToDescendantRepliesMap(
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Map[Long, Seq[CandidateWithFeatures[TweetCandidate]]] = {
-    val tweetToCandidateMap = candidates.map(c => c.candidate.id -> c).toMap
-    replyToAncestorTweetCandidatesMap(candidates).toSeq
-      .flatMap {
-        case (reply, ancestorTweets) =>
-          ancestorTweets.map { ancestor =>
-            (ancestor.candidate.id, reply)
-          }
-      }.groupBy { case (ancestor, reply) => ancestor }
-      .mapValues { ancestorReplyPairs =>
-        ancestorReplyPairs.map(_._2).distinct
-      }.mapValues(tweetIds => tweetIds.map(tid => tweetToCandidateMap(tid)))
-  }
-
-  /**
-   * Builds a map from reply tweet to inReplyToTweet which is also a candidate.
-   * Retweets of replies or replies to retweets are not included
-   */
-  def replyTweetIdToInReplyToTweetMap(
-    candidates: Seq[CandidateWithFeatures[TweetCandidate]]
-  ): Map[Long, CandidateWithFeatures[TweetCandidate]] = {
-    val eligibleReplyCandidates = candidates.filter { candidate =>
-      isEligibleReply(candidate) && candidate.features
-        .getOrElse(InReplyToTweetIdFeature, None)
-        .nonEmpty
-    }
-
-    val inReplyToTweetIds = eligibleReplyCandidates
-      .flatMap(_.features.getOrElse(InReplyToTweetIdFeature, None))
-      .toSet
-
-    val inReplyToTweetIdToTweetMap: Map[Long, CandidateWithFeatures[TweetCandidate]] = candidates
-      .filter { maybeInReplyToTweet =>
-        inReplyToTweetIds.contains(maybeInReplyToTweet.candidate.id)
-      }.map { inReplyToTweet =>
-        inReplyToTweet.candidate.id -> inReplyToTweet
-      }.toMap
-
-    eligibleReplyCandidates.flatMap { reply =>
-      val inReplyToTweetId = reply.features.getOrElse(InReplyToTweetIdFeature, None)
-      if (inReplyToTweetId.nonEmpty) {
-        inReplyToTweetIdToTweetMap.get(inReplyToTweetId.get).map { inReplyToTweet =>
-          reply.candidate.id -> inReplyToTweet
-        }
-      } else {
-        None
-      }
-    }.toMap
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/TensorFlowUtil.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/TensorFlowUtil.scala
deleted file mode 100644
index 05d7c2127..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/TensorFlowUtil.scala
+++ /dev/null
@@ -1,32 +0,0 @@
-package com.twitter.home_mixer.util
-
-import com.twitter.ml.api.thriftscala.FloatTensor
-import com.twitter.ml.api.util.BufferToIterators.RichFloatBuffer
-import java.nio.ByteBuffer
-import java.nio.ByteOrder
-
-/**
- * Contains functionality to transform data records and Tensors
- */
-
-object TensorFlowUtil {
-
-  private def skipEmbeddingBBHeader(bb: ByteBuffer): ByteBuffer = {
-    val bb_copy = bb.duplicate()
-    bb_copy.getLong()
-    bb_copy
-  }
-
-  private def byteBufferToFloatIterator(
-    bb: ByteBuffer
-  ): Iterator[Float] = {
-    bb.order(ByteOrder.LITTLE_ENDIAN).asFloatBuffer.iterator
-  }
-
-  def embeddingByteBufferToFloatTensor(
-    bb: ByteBuffer
-  ): FloatTensor = {
-    val bb_content = skipEmbeddingBBHeader(bb)
-    FloatTensor(byteBufferToFloatIterator(bb_content).map(_.toDouble).toList)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/TweetImpressionsHelper.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/TweetImpressionsHelper.scala
deleted file mode 100644
index eabaac9e3..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/TweetImpressionsHelper.scala
+++ /dev/null
@@ -1,15 +0,0 @@
-package com.twitter.home_mixer.util
-
-import com.twitter.home_mixer.model.HomeFeatures.TweetImpressionsFeature
-import com.twitter.product_mixer.component_library.feature_hydrator.query.impressed_tweets.ImpressedTweets
-import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
-
-object TweetImpressionsHelper {
-  def tweetImpressions(features: FeatureMap): Set[Long] = {
-    val manhattanImpressions =
-      features.getOrElse(TweetImpressionsFeature, Seq.empty).flatMap(_.tweetIds)
-    val memcacheImpressions = features.getOrElse(ImpressedTweets, Seq.empty)
-
-    (manhattanImpressions ++ memcacheImpressions).toSet
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/earlybird/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/earlybird/BUILD.bazel
deleted file mode 100644
index 2b5722179..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/earlybird/BUILD.bazel
+++ /dev/null
@@ -1,23 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "src/java/com/twitter/search/common/schema/base",
-        "src/java/com/twitter/search/common/schema/earlybird",
-        "src/java/com/twitter/search/common/util/lang",
-        "src/java/com/twitter/search/queryparser/query:core-query-nodes",
-        "src/java/com/twitter/search/queryparser/query/search:search-query-nodes",
-        "src/thrift/com/twitter/search:earlybird-scala",
-        "src/thrift/com/twitter/search/common:constants-scala",
-        "src/thrift/com/twitter/search/common:query-scala",
-        "src/thrift/com/twitter/search/common:ranking-scala",
-        "timelines/src/main/scala/com/twitter/timelines/clients/relevance_search",
-        "timelines/src/main/scala/com/twitter/timelines/earlybird/common/options",
-        "timelines/src/main/scala/com/twitter/timelines/earlybird/common/utils",
-        "timelines/src/main/scala/com/twitter/timelines/model/types",
-        "timelines/src/main/scala/com/twitter/timelines/util/stats",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/earlybird/EarlybirdRequestUtil.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/earlybird/EarlybirdRequestUtil.scala
deleted file mode 100644
index 4c482b251..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/earlybird/EarlybirdRequestUtil.scala
+++ /dev/null
@@ -1,182 +0,0 @@
-package com.twitter.home_mixer.util.earlybird
-
-import com.twitter.conversions.DurationOps._
-import com.twitter.search.common.query.thriftjava.{thriftscala => scq}
-import com.twitter.search.common.ranking.{thriftscala => scr}
-import com.twitter.search.earlybird.{thriftscala => eb}
-import com.twitter.timelines.clients.relevance_search.SearchClient.TweetFeatures
-import com.twitter.timelines.clients.relevance_search.SearchClient.TweetTypes
-import com.twitter.timelines.clients.relevance_search.SearchQueryBuilder
-import com.twitter.timelines.clients.relevance_search.SearchQueryBuilder.QueryWithNamedDisjunctions
-import com.twitter.timelines.earlybird.common.options.EarlybirdScoringModelConfig
-import com.twitter.timelines.earlybird.common.utils.SearchOperator
-import com.twitter.util.Duration
-
-object EarlybirdRequestUtil {
-
-  val DefaultMaxHitsToProcess = 1000
-  val DefaultSearchProcessingTimeout: Duration = 200.milliseconds
-  val DefaultHydrationMaxNumResultsPerShard = 1000
-  val DefaultQueryMaxNumResultsPerShard = 300
-  val DefaultHydrationCollectorParams = mkCollectorParams(DefaultHydrationMaxNumResultsPerShard)
-
-  private val queryBuilder = new SearchQueryBuilder
-
-  object EarlybirdScoringModels {
-    val UnifiedEngagementProd: Seq[EarlybirdScoringModelConfig] = Seq(
-      EarlybirdScoringModelConfig("timelines_unified_engagement_prod.schema_based", 1.0)
-    )
-
-    val UnifiedEngagementRectweet: Seq[EarlybirdScoringModelConfig] = Seq(
-      EarlybirdScoringModelConfig("timelines_unified_engagement_rectweet.schema_based", 1.0)
-    )
-  }
-
-  private[earlybird] def mkCollectorParams(numResultsToReturn: Int): scq.CollectorParams = {
-    scq.CollectorParams(
-      // numResultsToReturn defines how many results each EB shard will return to search root
-      numResultsToReturn = numResultsToReturn,
-      // terminationParams.maxHitsToProcess is used for early terminating per shard results fetching.
-      terminationParams = Some(
-        scq.CollectorTerminationParams(
-          maxHitsToProcess = Some(DefaultMaxHitsToProcess),
-          timeoutMs = DefaultSearchProcessingTimeout.inMilliseconds.toInt
-        ))
-    )
-  }
-
-  private def getRankingParams(
-    authorScoreMap: Option[Map[Long, Double]],
-    tensorflowModel: Option[String],
-    ebModels: Seq[EarlybirdScoringModelConfig]
-  ): Option[scr.ThriftRankingParams] = {
-    if (tensorflowModel.nonEmpty) {
-      Some(
-        scr.ThriftRankingParams(
-          `type` = Some(scr.ThriftScoringFunctionType.TensorflowBased),
-          selectedTensorflowModel = tensorflowModel,
-          minScore = -1.0e100,
-          applyBoosts = false,
-          authorSpecificScoreAdjustments = authorScoreMap
-        )
-      )
-    } else if (ebModels.nonEmpty) {
-      Some(
-        scr.ThriftRankingParams(
-          `type` = Some(scr.ThriftScoringFunctionType.ModelBased),
-          selectedModels = Some(ebModels.map(m => m.name -> m.weight).toMap),
-          applyBoosts = false,
-          minScore = -1.0e100,
-          authorSpecificScoreAdjustments = authorScoreMap
-        )
-      )
-    } else None
-  }
-
-  def getTweetsRequest(
-    userId: Option[Long],
-    clientId: Option[String],
-    skipVeryRecentTweets: Boolean,
-    followedUserIds: Set[Long],
-    retweetsMutedUserIds: Set[Long],
-    beforeTweetIdExclusive: Option[Long],
-    afterTweetIdExclusive: Option[Long],
-    excludedTweetIds: Option[Set[Long]] = None,
-    maxCount: Int,
-    tweetTypes: TweetTypes.ValueSet,
-    authorScoreMap: Option[Map[Long, Double]] = None,
-    tensorflowModel: Option[String] = None,
-    ebModels: Seq[EarlybirdScoringModelConfig] = Seq.empty,
-    queryMaxNumResultsPerShard: Int = DefaultQueryMaxNumResultsPerShard
-  ): eb.EarlybirdRequest = {
-
-    val QueryWithNamedDisjunctions(query, namedDisjunctionMap) = queryBuilder.create(
-      followedUserIds,
-      retweetsMutedUserIds,
-      beforeTweetIdExclusive,
-      afterTweetIdExclusive,
-      semanticCoreIds = None,
-      languages = None,
-      tweetTypes = tweetTypes,
-      searchOperator = SearchOperator.Exclude,
-      tweetFeatures = TweetFeatures.All,
-      excludedTweetIds = excludedTweetIds.getOrElse(Set.empty),
-      enableExcludeSourceTweetIdsQuery = false
-    )
-    val ebRankingParams = getRankingParams(authorScoreMap, tensorflowModel, ebModels)
-    val relOptions = RelevanceSearchUtil.RelevanceOptions.copy(
-      rankingParams = ebRankingParams
-    )
-
-    val followedUserIdsSeq = followedUserIds.toSeq
-    val namedDisjunctionMapOpt =
-      if (namedDisjunctionMap.isEmpty) None
-      else Some(namedDisjunctionMap.mapValues(_.toSeq))
-
-    val thriftQuery = eb.ThriftSearchQuery(
-      serializedQuery = Some(query.serialize),
-      fromUserIDFilter64 = Some(followedUserIdsSeq),
-      numResults = maxCount,
-      collectConversationId = true,
-      rankingMode = eb.ThriftSearchRankingMode.Relevance,
-      relevanceOptions = Some(relOptions),
-      collectorParams = Some(mkCollectorParams(queryMaxNumResultsPerShard)),
-      facetFieldNames = Some(RelevanceSearchUtil.FacetsToFetch),
-      resultMetadataOptions = Some(RelevanceSearchUtil.MetadataOptions),
-      searcherId = userId,
-      searchStatusIds = None,
-      namedDisjunctionMap = namedDisjunctionMapOpt
-    )
-
-    eb.EarlybirdRequest(
-      searchQuery = thriftQuery,
-      clientId = clientId,
-      getOlderResults = Some(false),
-      followedUserIds = Some(followedUserIdsSeq),
-      getProtectedTweetsOnly = Some(false),
-      timeoutMs = DefaultSearchProcessingTimeout.inMilliseconds.toInt,
-      skipVeryRecentTweets = skipVeryRecentTweets,
-      numResultsToReturnAtRoot = Some(maxCount)
-    )
-  }
-
-  def getTweetsFeaturesRequest(
-    userId: Option[Long],
-    tweetIds: Option[Seq[Long]],
-    clientId: Option[String],
-    getOnlyProtectedTweets: Boolean = false,
-    authorScoreMap: Option[Map[Long, Double]] = None,
-    tensorflowModel: Option[String] = None,
-    ebModels: Seq[EarlybirdScoringModelConfig] = Seq.empty
-  ): eb.EarlybirdRequest = {
-
-    val candidateSize = tweetIds.getOrElse(Seq.empty).size
-    val ebRankingParams = getRankingParams(authorScoreMap, tensorflowModel, ebModels)
-    val relOptions = RelevanceSearchUtil.RelevanceOptions.copy(
-      rankingParams = ebRankingParams
-    )
-    val thriftQuery = eb.ThriftSearchQuery(
-      numResults = candidateSize,
-      collectConversationId = true,
-      rankingMode = eb.ThriftSearchRankingMode.Relevance,
-      relevanceOptions = Some(relOptions),
-      collectorParams = Some(DefaultHydrationCollectorParams),
-      facetFieldNames = Some(RelevanceSearchUtil.FacetsToFetch),
-      resultMetadataOptions = Some(RelevanceSearchUtil.MetadataOptions),
-      searcherId = userId,
-      searchStatusIds = tweetIds.map(_.toSet),
-    )
-
-    eb.EarlybirdRequest(
-      searchQuery = thriftQuery,
-      clientId = clientId,
-      getOlderResults = Some(false),
-      getProtectedTweetsOnly = Some(getOnlyProtectedTweets),
-      timeoutMs = DefaultSearchProcessingTimeout.inMilliseconds.toInt,
-      skipVeryRecentTweets = true,
-      // This param decides # of tweets to return from search superRoot and realtime/protected/Archive roots.
-      // It takes higher precedence than ThriftSearchQuery.numResults
-      numResultsToReturnAtRoot = Some(candidateSize)
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/earlybird/EarlybirdResponseUtil.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/earlybird/EarlybirdResponseUtil.scala
deleted file mode 100644
index 06e0dd708..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/earlybird/EarlybirdResponseUtil.scala
+++ /dev/null
@@ -1,411 +0,0 @@
-package com.twitter.home_mixer.util.earlybird
-
-import com.twitter.search.common.constants.{thriftscala => scc}
-import com.twitter.search.common.features.{thriftscala => sc}
-import com.twitter.search.common.schema.earlybird.EarlybirdFieldConstants.EarlybirdFieldConstant
-import com.twitter.search.common.schema.earlybird.EarlybirdFieldConstants.EarlybirdFieldConstant._
-import com.twitter.search.common.util.lang.ThriftLanguageUtil
-import com.twitter.search.earlybird.{thriftscala => eb}
-import com.twitter.timelines.earlybird.common.utils.InNetworkEngagement
-
-object EarlybirdResponseUtil {
-
-  private[earlybird] val Mentions: String = "mentions"
-  private[earlybird] val Hashtags: String = "hashtags"
-  private val CharsToRemoveFromMentions: Set[Char] = "@".toSet
-  private val CharsToRemoveFromHashtags: Set[Char] = "#".toSet
-
-  // Default value of settings of ThriftTweetFeatures.
-  private[earlybird] val DefaultEarlybirdFeatures: sc.ThriftTweetFeatures = sc.ThriftTweetFeatures()
-  private[earlybird] val DefaultCount = 0
-  private[earlybird] val DefaultLanguage = 0
-  private[earlybird] val DefaultScore = 0.0
-
-  private[earlybird] def getTweetCountByAuthorId(
-    searchResults: Seq[eb.ThriftSearchResult]
-  ): Map[Long, Int] = {
-    searchResults
-      .groupBy { result =>
-        result.metadata.map(_.fromUserId).getOrElse(0L)
-      }.mapValues(_.size).withDefaultValue(0)
-  }
-
-  private[earlybird] def getLanguage(uiLanguageCode: Option[String]): Option[scc.ThriftLanguage] = {
-    uiLanguageCode.flatMap { languageCode =>
-      scc.ThriftLanguage.get(ThriftLanguageUtil.getThriftLanguageOf(languageCode).getValue)
-    }
-  }
-
-  private def getMentions(result: eb.ThriftSearchResult): Seq[String] = {
-    val facetLabels = result.metadata.flatMap(_.facetLabels).getOrElse(Seq.empty)
-    getFacets(facetLabels, Mentions, CharsToRemoveFromMentions)
-  }
-
-  private def getHashtags(result: eb.ThriftSearchResult): Seq[String] = {
-    val facetLabels = result.metadata.flatMap(_.facetLabels).getOrElse(Seq.empty)
-    getFacets(facetLabels, Hashtags, CharsToRemoveFromHashtags)
-  }
-
-  private def getFacets(
-    facetLabels: Seq[eb.ThriftFacetLabel],
-    facetName: String,
-    charsToRemove: Set[Char]
-  ): Seq[String] = {
-    facetLabels.filter(_.fieldName == facetName).map(_.label.filterNot(charsToRemove))
-  }
-
-  private def isUserMentioned(
-    screenName: Option[String],
-    mentions: Seq[String],
-    mentionsInSourceTweet: Seq[String]
-  ): Boolean =
-    isUserMentioned(screenName, mentions) || isUserMentioned(screenName, mentionsInSourceTweet)
-
-  private def isUserMentioned(
-    screenName: Option[String],
-    mentions: Seq[String]
-  ): Boolean = {
-    screenName
-      .exists { screenName => mentions.exists(_.equalsIgnoreCase(screenName)) }
-  }
-
-  private[earlybird] def isUsersMainLanguage(
-    tweetLanguage: scc.ThriftLanguage,
-    userLanguages: Seq[scc.ThriftLanguage]
-  ): Boolean = {
-    (tweetLanguage != scc.ThriftLanguage.Unknown) && userLanguages.headOption.contains(
-      tweetLanguage)
-  }
-
-  private[earlybird] def isUsersLanguage(
-    tweetLanguage: scc.ThriftLanguage,
-    userLanguages: Seq[scc.ThriftLanguage]
-  ): Boolean = {
-    (tweetLanguage != scc.ThriftLanguage.Unknown) && userLanguages.contains(tweetLanguage)
-  }
-
-  private[earlybird] def isUILanguage(
-    tweetLanguage: scc.ThriftLanguage,
-    uiLanguage: Option[scc.ThriftLanguage]
-  ): Boolean = {
-    (tweetLanguage != scc.ThriftLanguage.Unknown) && uiLanguage.contains(tweetLanguage)
-  }
-
-  private def getBooleanOptFeature(
-    featureName: EarlybirdFieldConstant,
-    resultMapOpt: Option[scala.collection.Map[Int, Boolean]],
-    defaultValue: Boolean = false,
-  ): Option[Boolean] = {
-    resultMapOpt.map {
-      _.getOrElse(featureName.getFieldId, defaultValue)
-    }
-  }
-
-  private def getDoubleAsIntOptFeature(
-    featureName: EarlybirdFieldConstant,
-    resultMapOpt: Option[scala.collection.Map[Int, Double]]
-  ): Option[Int] = {
-    if (resultMapOpt.exists(_.contains(featureName.getFieldId)))
-      resultMapOpt
-        .map {
-          _.get(featureName.getFieldId)
-        }
-        .flatMap { doubleValue =>
-          doubleValue.map(_.toInt)
-        }
-    else
-      None
-  }
-
-  private def getIntOptFeature(
-    featureName: EarlybirdFieldConstant,
-    resultMapOpt: Option[scala.collection.Map[Int, Int]]
-  ): Option[Int] = {
-    if (resultMapOpt.exists(_.contains(featureName.getFieldId)))
-      resultMapOpt.flatMap {
-        _.get(featureName.getFieldId)
-      }
-    else
-      None
-  }
-
-  def getTweetThriftFeaturesByTweetId(
-    searcherUserId: Long,
-    screenName: Option[String],
-    userLanguages: Seq[scc.ThriftLanguage],
-    uiLanguageCode: Option[String] = None,
-    followedUserIds: Set[Long],
-    mutuallyFollowingUserIds: Set[Long],
-    searchResults: Seq[eb.ThriftSearchResult],
-    sourceTweetSearchResults: Seq[eb.ThriftSearchResult],
-  ): Map[Long, sc.ThriftTweetFeatures] = {
-
-    val allSearchResults = searchResults ++ sourceTweetSearchResults
-    val sourceTweetSearchResultById =
-      sourceTweetSearchResults.map(result => (result.id -> result)).toMap
-    val inNetworkEngagement =
-      InNetworkEngagement(followedUserIds.toSeq, mutuallyFollowingUserIds, allSearchResults)
-    searchResults.map { searchResult =>
-      val features = getThriftTweetFeaturesFromSearchResult(
-        searcherUserId,
-        screenName,
-        userLanguages,
-        getLanguage(uiLanguageCode),
-        getTweetCountByAuthorId(searchResults),
-        followedUserIds,
-        mutuallyFollowingUserIds,
-        sourceTweetSearchResultById,
-        inNetworkEngagement,
-        searchResult
-      )
-      (searchResult.id -> features)
-    }.toMap
-  }
-
-  private[earlybird] def getThriftTweetFeaturesFromSearchResult(
-    searcherUserId: Long,
-    screenName: Option[String],
-    userLanguages: Seq[scc.ThriftLanguage],
-    uiLanguage: Option[scc.ThriftLanguage],
-    tweetCountByAuthorId: Map[Long, Int],
-    followedUserIds: Set[Long],
-    mutuallyFollowingUserIds: Set[Long],
-    sourceTweetSearchResultById: Map[Long, eb.ThriftSearchResult],
-    inNetworkEngagement: InNetworkEngagement,
-    searchResult: eb.ThriftSearchResult,
-  ): sc.ThriftTweetFeatures = {
-    val applyFeatures = (applyUserIndependentFeatures(
-      searchResult
-    )(_)).andThen(
-      applyUserDependentFeatures(
-        searcherUserId,
-        screenName,
-        userLanguages,
-        uiLanguage,
-        tweetCountByAuthorId,
-        followedUserIds,
-        mutuallyFollowingUserIds,
-        sourceTweetSearchResultById,
-        inNetworkEngagement,
-        searchResult
-      )(_)
-    )
-    val tweetFeatures = searchResult.tweetFeatures.getOrElse(DefaultEarlybirdFeatures)
-    applyFeatures(tweetFeatures)
-  }
-
-  private[earlybird] def applyUserIndependentFeatures(
-    result: eb.ThriftSearchResult
-  )(
-    thriftTweetFeatures: sc.ThriftTweetFeatures
-  ): sc.ThriftTweetFeatures = {
-
-    val features = result.metadata
-      .map { metadata =>
-        val isRetweet = metadata.isRetweet.getOrElse(false)
-        val isReply = metadata.isReply.getOrElse(false)
-
-        // Facets.
-        val mentions = getMentions(result)
-        val hashtags = getHashtags(result)
-
-        val searchResultSchemaFeatures = metadata.extraMetadata.flatMap(_.features)
-        val booleanSearchResultSchemaFeatures = searchResultSchemaFeatures.flatMap(_.boolValues)
-        val intSearchResultSchemaFeatures = searchResultSchemaFeatures.flatMap(_.intValues)
-        val doubleSearchResultSchemaFeatures = searchResultSchemaFeatures.flatMap(_.doubleValues)
-
-        thriftTweetFeatures.copy(
-          // Info about the Tweet.
-          isRetweet = isRetweet,
-          isOffensive = metadata.isOffensive.getOrElse(false),
-          isReply = isReply,
-          fromVerifiedAccount = metadata.fromVerifiedAccount.getOrElse(false),
-          cardType = metadata.cardType,
-          signature = metadata.signature,
-          language = metadata.language,
-          isAuthorNSFW = metadata.isUserNSFW.getOrElse(false),
-          isAuthorBot = metadata.isUserBot.getOrElse(false),
-          isAuthorSpam = metadata.isUserSpam.getOrElse(false),
-          isSensitiveContent =
-            metadata.extraMetadata.flatMap(_.isSensitiveContent).getOrElse(false),
-          isAuthorProfileEgg = metadata.extraMetadata.flatMap(_.profileIsEggFlag).getOrElse(false),
-          isAuthorNew = metadata.extraMetadata.flatMap(_.isUserNewFlag).getOrElse(false),
-          linkLanguage = metadata.extraMetadata.flatMap(_.linkLanguage).getOrElse(DefaultLanguage),
-          // Info about Tweet content/media.
-          hasCard = metadata.hasCard.getOrElse(false),
-          hasImage = metadata.hasImage.getOrElse(false),
-          hasNews = metadata.hasNews.getOrElse(false),
-          hasVideo = metadata.hasVideo.getOrElse(false),
-          hasConsumerVideo = metadata.hasConsumerVideo.getOrElse(false),
-          hasProVideo = metadata.hasProVideo.getOrElse(false),
-          hasVine = metadata.hasVine.getOrElse(false),
-          hasPeriscope = metadata.hasPeriscope.getOrElse(false),
-          hasNativeVideo = metadata.hasNativeVideo.getOrElse(false),
-          hasNativeImage = metadata.hasNativeImage.getOrElse(false),
-          hasLink = metadata.hasLink.getOrElse(false),
-          hasVisibleLink = metadata.hasVisibleLink.getOrElse(false),
-          hasTrend = metadata.hasTrend.getOrElse(false),
-          hasMultipleHashtagsOrTrends = metadata.hasMultipleHashtagsOrTrends.getOrElse(false),
-          hasQuote = metadata.extraMetadata.flatMap(_.hasQuote),
-          urlsList = metadata.tweetUrls.map {
-            _.map(_.originalUrl)
-          },
-          hasMultipleMedia =
-            metadata.extraMetadata.flatMap(_.hasMultipleMediaFlag).getOrElse(false),
-          visibleTokenRatio = getIntOptFeature(VISIBLE_TOKEN_RATIO, intSearchResultSchemaFeatures),
-          // Various counts.
-          favCount = metadata.favCount.getOrElse(DefaultCount),
-          replyCount = metadata.replyCount.getOrElse(DefaultCount),
-          retweetCount = metadata.retweetCount.getOrElse(DefaultCount),
-          quoteCount = metadata.extraMetadata.flatMap(_.quotedCount),
-          embedsImpressionCount = metadata.embedsImpressionCount.getOrElse(DefaultCount),
-          embedsUrlCount = metadata.embedsUrlCount.getOrElse(DefaultCount),
-          videoViewCount = metadata.videoViewCount.getOrElse(DefaultCount),
-          numMentions = metadata.extraMetadata.flatMap(_.numMentions).getOrElse(DefaultCount),
-          numHashtags = metadata.extraMetadata.flatMap(_.numHashtags).getOrElse(DefaultCount),
-          favCountV2 = metadata.extraMetadata.flatMap(_.favCountV2),
-          replyCountV2 = metadata.extraMetadata.flatMap(_.replyCountV2),
-          retweetCountV2 = metadata.extraMetadata.flatMap(_.retweetCountV2),
-          weightedFavoriteCount = metadata.extraMetadata.flatMap(_.weightedFavCount),
-          weightedReplyCount = metadata.extraMetadata.flatMap(_.weightedReplyCount),
-          weightedRetweetCount = metadata.extraMetadata.flatMap(_.weightedRetweetCount),
-          weightedQuoteCount = metadata.extraMetadata.flatMap(_.weightedQuoteCount),
-          embedsImpressionCountV2 =
-            getDoubleAsIntOptFeature(EMBEDS_IMPRESSION_COUNT_V2, doubleSearchResultSchemaFeatures),
-          embedsUrlCountV2 =
-            getDoubleAsIntOptFeature(EMBEDS_URL_COUNT_V2, doubleSearchResultSchemaFeatures),
-          decayedFavoriteCount =
-            getDoubleAsIntOptFeature(DECAYED_FAVORITE_COUNT, doubleSearchResultSchemaFeatures),
-          decayedRetweetCount =
-            getDoubleAsIntOptFeature(DECAYED_RETWEET_COUNT, doubleSearchResultSchemaFeatures),
-          decayedReplyCount =
-            getDoubleAsIntOptFeature(DECAYED_REPLY_COUNT, doubleSearchResultSchemaFeatures),
-          decayedQuoteCount =
-            getDoubleAsIntOptFeature(DECAYED_QUOTE_COUNT, doubleSearchResultSchemaFeatures),
-          fakeFavoriteCount =
-            getDoubleAsIntOptFeature(FAKE_FAVORITE_COUNT, doubleSearchResultSchemaFeatures),
-          fakeRetweetCount =
-            getDoubleAsIntOptFeature(FAKE_RETWEET_COUNT, doubleSearchResultSchemaFeatures),
-          fakeReplyCount =
-            getDoubleAsIntOptFeature(FAKE_REPLY_COUNT, doubleSearchResultSchemaFeatures),
-          fakeQuoteCount =
-            getDoubleAsIntOptFeature(FAKE_QUOTE_COUNT, doubleSearchResultSchemaFeatures),
-          // Scores.
-          textScore = metadata.textScore.getOrElse(DefaultScore),
-          earlybirdScore = metadata.score.getOrElse(DefaultScore),
-          parusScore = metadata.parusScore.getOrElse(DefaultScore),
-          userRep = metadata.userRep.getOrElse(DefaultScore),
-          pBlockScore = metadata.extraMetadata.flatMap(_.pBlockScore),
-          toxicityScore = metadata.extraMetadata.flatMap(_.toxicityScore),
-          pSpammyTweetScore = metadata.extraMetadata.flatMap(_.pSpammyTweetScore),
-          pReportedTweetScore = metadata.extraMetadata.flatMap(_.pReportedTweetScore),
-          pSpammyTweetContent = metadata.extraMetadata.flatMap(_.spammyTweetContentScore),
-          // Safety Signals
-          labelAbusiveFlag =
-            getBooleanOptFeature(LABEL_ABUSIVE_FLAG, booleanSearchResultSchemaFeatures),
-          labelAbusiveHiRclFlag =
-            getBooleanOptFeature(LABEL_ABUSIVE_HI_RCL_FLAG, booleanSearchResultSchemaFeatures),
-          labelDupContentFlag =
-            getBooleanOptFeature(LABEL_DUP_CONTENT_FLAG, booleanSearchResultSchemaFeatures),
-          labelNsfwHiPrcFlag =
-            getBooleanOptFeature(LABEL_NSFW_HI_PRC_FLAG, booleanSearchResultSchemaFeatures),
-          labelNsfwHiRclFlag =
-            getBooleanOptFeature(LABEL_NSFW_HI_RCL_FLAG, booleanSearchResultSchemaFeatures),
-          labelSpamFlag = getBooleanOptFeature(LABEL_SPAM_FLAG, booleanSearchResultSchemaFeatures),
-          labelSpamHiRclFlag =
-            getBooleanOptFeature(LABEL_SPAM_HI_RCL_FLAG, booleanSearchResultSchemaFeatures),
-          // Periscope Features
-          periscopeExists =
-            getBooleanOptFeature(PERISCOPE_EXISTS, booleanSearchResultSchemaFeatures),
-          periscopeHasBeenFeatured =
-            getBooleanOptFeature(PERISCOPE_HAS_BEEN_FEATURED, booleanSearchResultSchemaFeatures),
-          periscopeIsCurrentlyFeatured = getBooleanOptFeature(
-            PERISCOPE_IS_CURRENTLY_FEATURED,
-            booleanSearchResultSchemaFeatures),
-          periscopeIsFromQualitySource = getBooleanOptFeature(
-            PERISCOPE_IS_FROM_QUALITY_SOURCE,
-            booleanSearchResultSchemaFeatures),
-          periscopeIsLive =
-            getBooleanOptFeature(PERISCOPE_IS_LIVE, booleanSearchResultSchemaFeatures),
-          // Last Engagement Features
-          lastFavSinceCreationHrs =
-            getIntOptFeature(LAST_FAVORITE_SINCE_CREATION_HRS, intSearchResultSchemaFeatures),
-          lastRetweetSinceCreationHrs =
-            getIntOptFeature(LAST_RETWEET_SINCE_CREATION_HRS, intSearchResultSchemaFeatures),
-          lastReplySinceCreationHrs =
-            getIntOptFeature(LAST_REPLY_SINCE_CREATION_HRS, intSearchResultSchemaFeatures),
-          lastQuoteSinceCreationHrs =
-            getIntOptFeature(LAST_QUOTE_SINCE_CREATION_HRS, intSearchResultSchemaFeatures),
-          likedByUserIds = metadata.extraMetadata.flatMap(_.likedByUserIds),
-          mentionsList = if (mentions.nonEmpty) Some(mentions) else None,
-          hashtagsList = if (hashtags.nonEmpty) Some(hashtags) else None,
-          isComposerSourceCamera =
-            getBooleanOptFeature(COMPOSER_SOURCE_IS_CAMERA_FLAG, booleanSearchResultSchemaFeatures),
-        )
-      }
-      .getOrElse(thriftTweetFeatures)
-
-    features
-  }
-
-  private def applyUserDependentFeatures(
-    searcherUserId: Long,
-    screenName: Option[String],
-    userLanguages: Seq[scc.ThriftLanguage],
-    uiLanguage: Option[scc.ThriftLanguage],
-    tweetCountByAuthorId: Map[Long, Int],
-    followedUserIds: Set[Long],
-    mutuallyFollowingUserIds: Set[Long],
-    sourceTweetSearchResultById: Map[Long, eb.ThriftSearchResult],
-    inNetworkEngagement: InNetworkEngagement,
-    result: eb.ThriftSearchResult
-  )(
-    thriftTweetFeatures: sc.ThriftTweetFeatures
-  ): sc.ThriftTweetFeatures = {
-    result.metadata
-      .map { metadata =>
-        val isRetweet = metadata.isRetweet.getOrElse(false)
-        val sourceTweet =
-          if (isRetweet) sourceTweetSearchResultById.get(metadata.sharedStatusId)
-          else None
-        val mentionsInSourceTweet = sourceTweet.map(getMentions).getOrElse(Seq.empty)
-
-        val isReply = metadata.isReply.getOrElse(false)
-        val replyToSearcher = isReply && (metadata.referencedTweetAuthorId == searcherUserId)
-        val replyOther = isReply && !replyToSearcher
-        val retweetOther = isRetweet && (metadata.referencedTweetAuthorId != searcherUserId)
-        val tweetLanguage = metadata.language.getOrElse(scc.ThriftLanguage.Unknown)
-
-        val referencedTweetAuthorId =
-          if (metadata.referencedTweetAuthorId > 0) Some(metadata.referencedTweetAuthorId) else None
-        val inReplyToUserId = if (!isRetweet) referencedTweetAuthorId else None
-
-        thriftTweetFeatures.copy(
-          // Info about the Tweet.
-          fromSearcher = metadata.fromUserId == searcherUserId,
-          probablyFromFollowedAuthor = followedUserIds.contains(metadata.fromUserId),
-          fromMutualFollow = mutuallyFollowingUserIds.contains(metadata.fromUserId),
-          replySearcher = replyToSearcher,
-          replyOther = replyOther,
-          retweetOther = retweetOther,
-          mentionSearcher = isUserMentioned(screenName, getMentions(result), mentionsInSourceTweet),
-          // Info about Tweet content/media.
-          matchesSearcherMainLang = isUsersMainLanguage(tweetLanguage, userLanguages),
-          matchesSearcherLangs = isUsersLanguage(tweetLanguage, userLanguages),
-          matchesUILang = isUILanguage(tweetLanguage, uiLanguage),
-          // Various counts.
-          prevUserTweetEngagement =
-            metadata.extraMetadata.flatMap(_.prevUserTweetEngagement).getOrElse(DefaultCount),
-          tweetCountFromUserInSnapshot = tweetCountByAuthorId(metadata.fromUserId),
-          bidirectionalReplyCount = inNetworkEngagement.biDirectionalReplyCounts(result.id),
-          unidirectionalReplyCount = inNetworkEngagement.uniDirectionalReplyCounts(result.id),
-          bidirectionalRetweetCount = inNetworkEngagement.biDirectionalRetweetCounts(result.id),
-          unidirectionalRetweetCount = inNetworkEngagement.uniDirectionalRetweetCounts(result.id),
-          conversationCount = inNetworkEngagement.descendantReplyCounts(result.id),
-          directedAtUserIdIsInFirstDegree =
-            if (isReply) inReplyToUserId.map(followedUserIds.contains) else None,
-        )
-      }
-      .getOrElse(thriftTweetFeatures)
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/earlybird/RelevanceSearchUtil.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/earlybird/RelevanceSearchUtil.scala
deleted file mode 100644
index 40b727141..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/earlybird/RelevanceSearchUtil.scala
+++ /dev/null
@@ -1,38 +0,0 @@
-package com.twitter.home_mixer.util.earlybird
-
-import com.twitter.search.common.schema.earlybird.EarlybirdFieldConstants.EarlybirdFieldConstant
-import com.twitter.search.earlybird.{thriftscala => eb}
-
-object RelevanceSearchUtil {
-
-  val Mentions: String = EarlybirdFieldConstant.MENTIONS_FACET
-  val Hashtags: String = EarlybirdFieldConstant.HASHTAGS_FACET
-  val FacetsToFetch: Seq[String] = Seq(Mentions, Hashtags)
-
-  val MetadataOptions: eb.ThriftSearchResultMetadataOptions = {
-    eb.ThriftSearchResultMetadataOptions(
-      getTweetUrls = true,
-      getResultLocation = false,
-      getLuceneScore = false,
-      getInReplyToStatusId = true,
-      getReferencedTweetAuthorId = true,
-      getMediaBits = true,
-      getAllFeatures = true,
-      returnSearchResultFeatures = true,
-      // Set getExclusiveConversationAuthorId in order to retrieve Exclusive / SuperFollow tweets.
-      getExclusiveConversationAuthorId = true
-    )
-  }
-
-  val RelevanceOptions: eb.ThriftSearchRelevanceOptions = {
-    eb.ThriftSearchRelevanceOptions(
-      proximityScoring = true,
-      maxConsecutiveSameUser = Some(2),
-      rankingParams = None,
-      maxHitsToProcess = Some(500),
-      maxUserBlendCount = Some(3),
-      proximityPhraseWeight = 9.0,
-      returnAllResults = Some(true)
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/BUILD.bazel
deleted file mode 100644
index dbfee21f4..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/BUILD.bazel
+++ /dev/null
@@ -1,10 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/RequestFields.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/RequestFields.scala
deleted file mode 100644
index e20aead94..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/RequestFields.scala
+++ /dev/null
@@ -1,58 +0,0 @@
-package com.twitter.home_mixer.util.tweetypie
-
-import com.twitter.tweetypie.{thriftscala => tp}
-
-object RequestFields {
-
-  val CoreTweetFields: Set[tp.TweetInclude] = Set[tp.TweetInclude](
-    tp.TweetInclude.TweetFieldId(tp.Tweet.IdField.id),
-    tp.TweetInclude.TweetFieldId(tp.Tweet.CoreDataField.id)
-  )
-  val MediaFields: Set[tp.TweetInclude] = Set[tp.TweetInclude](
-    tp.TweetInclude.TweetFieldId(tp.Tweet.MediaField.id),
-  )
-  val SelfThreadFields: Set[tp.TweetInclude] = Set[tp.TweetInclude](
-    tp.TweetInclude.TweetFieldId(tp.Tweet.SelfThreadMetadataField.id)
-  )
-  val MentionsTweetFields: Set[tp.TweetInclude] = Set[tp.TweetInclude](
-    tp.TweetInclude.TweetFieldId(tp.Tweet.MentionsField.id)
-  )
-  val SemanticAnnotationTweetFields: Set[tp.TweetInclude] = Set[tp.TweetInclude](
-    tp.TweetInclude.TweetFieldId(tp.Tweet.EscherbirdEntityAnnotationsField.id)
-  )
-  val NsfwLabelFields: Set[tp.TweetInclude] = Set[tp.TweetInclude](
-    // Tweet fields containing NSFW related attributes.
-    tp.TweetInclude.TweetFieldId(tp.Tweet.NsfwHighRecallLabelField.id),
-    tp.TweetInclude.TweetFieldId(tp.Tweet.NsfwHighPrecisionLabelField.id),
-    tp.TweetInclude.TweetFieldId(tp.Tweet.NsfaHighRecallLabelField.id)
-  )
-  val SafetyLabelFields: Set[tp.TweetInclude] = Set[tp.TweetInclude](
-    // Tweet fields containing RTF labels for abuse and spam.
-    tp.TweetInclude.TweetFieldId(tp.Tweet.SpamLabelField.id),
-    tp.TweetInclude.TweetFieldId(tp.Tweet.AbusiveLabelField.id)
-  )
-  val ConversationControlField: Set[tp.TweetInclude] =
-    Set[tp.TweetInclude](tp.TweetInclude.TweetFieldId(tp.Tweet.ConversationControlField.id))
-
-  val TweetTPHydrationFields: Set[tp.TweetInclude] = CoreTweetFields ++
-    NsfwLabelFields ++
-    SafetyLabelFields ++
-    SemanticAnnotationTweetFields ++
-    Set(
-      tp.TweetInclude.TweetFieldId(tp.Tweet.TakedownCountryCodesField.id),
-      // QTs imply a TweetyPie -> SGS request dependency
-      tp.TweetInclude.TweetFieldId(tp.Tweet.QuotedTweetField.id),
-      tp.TweetInclude.TweetFieldId(tp.Tweet.CommunitiesField.id),
-      // Field required for determining if a Tweet was created via News Camera.
-      tp.TweetInclude.TweetFieldId(tp.Tweet.ComposerSourceField.id),
-      tp.TweetInclude.TweetFieldId(tp.Tweet.LanguageField.id)
-    )
-
-  val TweetStaticEntitiesFields: Set[tp.TweetInclude] =
-    MentionsTweetFields ++ CoreTweetFields ++ SemanticAnnotationTweetFields ++ MediaFields
-
-  val ContentFields: Set[tp.TweetInclude] = CoreTweetFields ++ MediaFields ++ SelfThreadFields ++
-    ConversationControlField ++ SemanticAnnotationTweetFields ++
-    Set[tp.TweetInclude](
-      tp.TweetInclude.MediaEntityFieldId(tp.MediaEntity.AdditionalMetadataField.id))
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/content/BUILD.bazel b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/content/BUILD.bazel
deleted file mode 100644
index 5acfd98e0..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/content/BUILD.bazel
+++ /dev/null
@@ -1,19 +0,0 @@
-scala_library(
-    sources = ["*.scala"],
-    compiler_option_sets = ["fatal_warnings"],
-    strict_deps = True,
-    tags = ["bazel-compatible"],
-    dependencies = [
-        "home-mixer/server/src/main/scala/com/twitter/home_mixer/model",
-        "home-mixer/thrift/src/main/thrift:thrift-scala",
-        "src/java/com/twitter/common/text/tagger",
-        "src/java/com/twitter/common/text/token",
-        "src/java/com/twitter/common_internal/text",
-        "src/java/com/twitter/common_internal/text/version",
-        "src/java/com/twitter/search/common/util/text",
-        "src/thrift/com/twitter/search/common:features-scala",
-        "src/thrift/com/twitter/tweetypie:media-entity-scala",
-        "src/thrift/com/twitter/tweetypie:service-scala",
-        "src/thrift/com/twitter/tweetypie:tweet-scala",
-    ],
-)
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/content/FeatureExtractionHelper.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/content/FeatureExtractionHelper.scala
deleted file mode 100644
index 07cbdebe4..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/content/FeatureExtractionHelper.scala
+++ /dev/null
@@ -1,29 +0,0 @@
-package com.twitter.home_mixer.util.tweetypie.content
-
-import com.twitter.home_mixer.model.ContentFeatures
-import com.twitter.tweetypie.{thriftscala => tp}
-
-object FeatureExtractionHelper {
-
-  def extractFeatures(
-    tweet: tp.Tweet
-  ): ContentFeatures = {
-    val contentFeaturesFromTweet = ContentFeatures.Empty.copy(
-      selfThreadMetadata = tweet.selfThreadMetadata
-    )
-
-    val contentFeaturesWithText = TweetTextFeaturesExtractor.addTextFeaturesFromTweet(
-      contentFeaturesFromTweet,
-      tweet
-    )
-    val contentFeaturesWithMedia = TweetMediaFeaturesExtractor.addMediaFeaturesFromTweet(
-      contentFeaturesWithText,
-      tweet
-    )
-
-    contentFeaturesWithMedia.copy(
-      conversationControl = tweet.conversationControl,
-      semanticCoreAnnotations = tweet.escherbirdEntityAnnotations.map(_.entityAnnotations)
-    )
-  }
-}
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/content/TweetMediaFeaturesExtractor.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/content/TweetMediaFeaturesExtractor.scala
deleted file mode 100644
index 0a5a93a2e..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/content/TweetMediaFeaturesExtractor.scala
+++ /dev/null
@@ -1,285 +0,0 @@
-package com.twitter.home_mixer.util.tweetypie.content
-
-import com.twitter.home_mixer.model.ContentFeatures
-import com.twitter.mediaservices.commons.mediainformation.{thriftscala => mi}
-import com.twitter.mediaservices.commons.tweetmedia.{thriftscala => tm}
-import com.twitter.mediaservices.commons.{thriftscala => ms}
-import com.twitter.tweetypie.{thriftscala => tp}
-import scala.collection.Map
-
-object TweetMediaFeaturesExtractor {
-
-  private val ImageCategories = Set(
-    ms.MediaCategory.TweetImage.value,
-    ms.MediaCategory.TweetGif.value
-  )
-  private val VideoCategories = Set(
-    ms.MediaCategory.TweetVideo.value,
-    ms.MediaCategory.AmplifyVideo.value
-  )
-
-  def hasImage(tweet: tp.Tweet): Boolean = hasMediaByCategory(tweet, ImageCategories)
-
-  def hasVideo(tweet: tp.Tweet): Boolean = hasMediaByCategory(tweet, VideoCategories)
-
-  private def hasMediaByCategory(tweet: tp.Tweet, categories: Set[Int]): Boolean = {
-    tweet.media.exists { mediaEntities =>
-      mediaEntities.exists { mediaEntity =>
-        mediaEntity.mediaKey.map(_.mediaCategory).exists { mediaCategory =>
-          categories.contains(mediaCategory.value)
-        }
-      }
-    }
-  }
-
-  def addMediaFeaturesFromTweet(
-    inputFeatures: ContentFeatures,
-    tweet: tp.Tweet,
-  ): ContentFeatures = {
-    val featuresWithMediaEntity = tweet.media
-      .map { mediaEntities =>
-        val sizeFeatures = getSizeFeatures(mediaEntities)
-        val playbackFeatures = getPlaybackFeatures(mediaEntities)
-        val mediaWidths = sizeFeatures.map(_.width.toShort)
-        val mediaHeights = sizeFeatures.map(_.height.toShort)
-        val resizeMethods = sizeFeatures.map(_.resizeMethod.toShort)
-        val faceMapAreas = getFaceMapAreas(mediaEntities)
-        val sortedColorPalette = getSortedColorPalette(mediaEntities)
-        val stickerFeatures = getStickerFeatures(mediaEntities)
-        val mediaOriginProviders = getMediaOriginProviders(mediaEntities)
-        val isManaged = getIsManaged(mediaEntities)
-        val is360 = getIs360(mediaEntities)
-        val viewCount = getViewCount(mediaEntities)
-        val userDefinedProductMetadataFeatures =
-          getUserDefinedProductMetadataFeatures(mediaEntities)
-        val isMonetizable =
-          getOptBooleanFromSeqOpt(userDefinedProductMetadataFeatures.map(_.isMonetizable))
-        val isEmbeddable =
-          getOptBooleanFromSeqOpt(userDefinedProductMetadataFeatures.map(_.isEmbeddable))
-        val hasSelectedPreviewImage =
-          getOptBooleanFromSeqOpt(userDefinedProductMetadataFeatures.map(_.hasSelectedPreviewImage))
-        val hasTitle = getOptBooleanFromSeqOpt(userDefinedProductMetadataFeatures.map(_.hasTitle))
-        val hasDescription =
-          getOptBooleanFromSeqOpt(userDefinedProductMetadataFeatures.map(_.hasDescription))
-        val hasVisitSiteCallToAction = getOptBooleanFromSeqOpt(
-          userDefinedProductMetadataFeatures.map(_.hasVisitSiteCallToAction))
-        val hasAppInstallCallToAction = getOptBooleanFromSeqOpt(
-          userDefinedProductMetadataFeatures.map(_.hasAppInstallCallToAction))
-        val hasWatchNowCallToAction =
-          getOptBooleanFromSeqOpt(userDefinedProductMetadataFeatures.map(_.hasWatchNowCallToAction))
-
-        inputFeatures.copy(
-          videoDurationMs = playbackFeatures.durationMs,
-          bitRate = playbackFeatures.bitRate,
-          aspectRatioNum = playbackFeatures.aspectRatioNum,
-          aspectRatioDen = playbackFeatures.aspectRatioDen,
-          widths = Some(mediaWidths),
-          heights = Some(mediaHeights),
-          resizeMethods = Some(resizeMethods),
-          faceAreas = Some(faceMapAreas),
-          dominantColorRed = sortedColorPalette.headOption.map(_.rgb.red),
-          dominantColorBlue = sortedColorPalette.headOption.map(_.rgb.blue),
-          dominantColorGreen = sortedColorPalette.headOption.map(_.rgb.green),
-          dominantColorPercentage = sortedColorPalette.headOption.map(_.percentage),
-          numColors = Some(sortedColorPalette.size.toShort),
-          stickerIds = Some(stickerFeatures),
-          mediaOriginProviders = Some(mediaOriginProviders),
-          isManaged = Some(isManaged),
-          is360 = Some(is360),
-          viewCount = viewCount,
-          isMonetizable = isMonetizable,
-          isEmbeddable = isEmbeddable,
-          hasSelectedPreviewImage = hasSelectedPreviewImage,
-          hasTitle = hasTitle,
-          hasDescription = hasDescription,
-          hasVisitSiteCallToAction = hasVisitSiteCallToAction,
-          hasAppInstallCallToAction = hasAppInstallCallToAction,
-          hasWatchNowCallToAction = hasWatchNowCallToAction
-        )
-      }
-      .getOrElse(inputFeatures)
-
-    val featuresWithMediaTags = tweet.mediaTags
-      .map { mediaTags =>
-        val mediaTagScreenNames = getMediaTagScreenNames(mediaTags.tagMap)
-        val numMediaTags = mediaTagScreenNames.size
-
-        featuresWithMediaEntity.copy(
-          mediaTagScreenNames = Some(mediaTagScreenNames),
-          numMediaTags = Some(numMediaTags.toShort)
-        )
-      }
-      .getOrElse(featuresWithMediaEntity)
-
-    featuresWithMediaTags
-      .copy(media = tweet.media)
-  }
-
-  private def getSizeFeatures(mediaEntities: Seq[tp.MediaEntity]): Seq[MediaSizeFeatures] = {
-    mediaEntities.map { mediaEntity =>
-      mediaEntity.sizes.foldLeft(MediaSizeFeatures(0, 0, 0))((accDimensions, dimensions) =>
-        MediaSizeFeatures(
-          width = math.max(dimensions.width, accDimensions.width),
-          height = math.max(dimensions.height, accDimensions.height),
-          resizeMethod = math.max(dimensions.resizeMethod.getValue, accDimensions.resizeMethod)
-        ))
-    }
-  }
-
-  private def getPlaybackFeatures(mediaEntities: Seq[tp.MediaEntity]): PlaybackFeatures = {
-    val allPlaybackFeatures = mediaEntities
-      .flatMap { mediaEntity =>
-        mediaEntity.mediaInfo map {
-          case videoEntity: tm.MediaInfo.VideoInfo =>
-            PlaybackFeatures(
-              durationMs = Some(videoEntity.videoInfo.durationMillis),
-              bitRate = videoEntity.videoInfo.variants.maxBy(_.bitRate).bitRate,
-              aspectRatioNum = Some(videoEntity.videoInfo.aspectRatio.numerator),
-              aspectRatioDen = Some(videoEntity.videoInfo.aspectRatio.denominator)
-            )
-          case gifEntity: tm.MediaInfo.AnimatedGifInfo =>
-            PlaybackFeatures(
-              durationMs = None,
-              bitRate = gifEntity.animatedGifInfo.variants.maxBy(_.bitRate).bitRate,
-              aspectRatioNum = Some(gifEntity.animatedGifInfo.aspectRatio.numerator),
-              aspectRatioDen = Some(gifEntity.animatedGifInfo.aspectRatio.denominator)
-            )
-          case _ => PlaybackFeatures(None, None, None, None)
-        }
-      }
-      .collect {
-        case playbackFeatures: PlaybackFeatures => playbackFeatures
-      }
-
-    if (allPlaybackFeatures.nonEmpty) allPlaybackFeatures.maxBy(_.durationMs)
-    else PlaybackFeatures(None, None, None, None)
-  }
-
-  private def getMediaTagScreenNames(tagMap: Map[Long, Seq[tp.MediaTag]]): Seq[String] =
-    tagMap.values
-      .flatMap(seqMediaTag => seqMediaTag.flatMap(_.screenName))
-      .toSeq
-
-  // Areas of the faces identified in the media entities
-  private def getFaceMapAreas(mediaEntities: Seq[tp.MediaEntity]): Seq[Int] = {
-    for {
-      mediaEntity <- mediaEntities
-      metadata <- mediaEntity.additionalMetadata.toSeq
-      faceData <- metadata.faceData
-      faces <- faceData.faces
-    } yield {
-      faces
-        .getOrElse("orig", Seq.empty[mi.Face])
-        .flatMap(f => f.boundingBox.map(bb => bb.width * bb.height))
-    }
-  }.flatten
-
-  // All ColorPalettes in the media sorted by the percentage in descending order
-  private def getSortedColorPalette(
-    mediaEntities: Seq[tp.MediaEntity]
-  ): Seq[mi.ColorPaletteItem] = {
-    for {
-      mediaEntity <- mediaEntities
-      metadata <- mediaEntity.additionalMetadata.toSeq
-      colorInfo <- metadata.colorInfo
-    } yield {
-      colorInfo.palette
-    }
-  }.flatten.sortBy(-_.percentage)
-
-  // Id's of stickers applied by the user
-  private def getStickerFeatures(mediaEntities: Seq[tp.MediaEntity]): Seq[Long] = {
-    for {
-      mediaEntity <- mediaEntities
-      metadata <- mediaEntity.additionalMetadata.toSeq
-      stickerInfo <- metadata.stickerInfo
-    } yield {
-      stickerInfo.stickers.map(_.id)
-    }
-  }.flatten
-
-  // 3rd party media providers. eg. giphy for gifs
-  private def getMediaOriginProviders(mediaEntities: Seq[tp.MediaEntity]): Seq[String] =
-    for {
-      mediaEntity <- mediaEntities
-      metadata <- mediaEntity.additionalMetadata.toSeq
-      mediaOrigin <- metadata.foundMediaOrigin
-    } yield {
-      mediaOrigin.provider
-    }
-
-  private def getIsManaged(mediaEntities: Seq[tp.MediaEntity]): Boolean = {
-    for {
-      mediaEntity <- mediaEntities
-      metadata <- mediaEntity.additionalMetadata.toSeq
-      managementInfo <- metadata.managementInfo
-    } yield {
-      managementInfo.managed
-    }
-  }.contains(true)
-
-  private def getIs360(mediaEntities: Seq[tp.MediaEntity]): Boolean = {
-    for {
-      mediaEntity <- mediaEntities
-      metadata <- mediaEntity.additionalMetadata.toSeq
-      info360 <- metadata.info360
-    } yield {
-      info360.is360
-    }
-  }.contains(Some(true))
-
-  private def getViewCount(mediaEntities: Seq[tp.MediaEntity]): Option[Long] = {
-    for {
-      mediaEntity <- mediaEntities
-      metadata <- mediaEntity.additionalMetadata.toSeq
-      engagementInfo <- metadata.engagementInfo
-      viewCounts <- engagementInfo.viewCount
-    } yield {
-      viewCounts
-    }
-  }.reduceOption(_ max _)
-
-  // metadata defined by the user when uploading the image
-  private def getUserDefinedProductMetadataFeatures(
-    mediaEntities: Seq[tp.MediaEntity]
-  ): Seq[UserDefinedProductMetadataFeatures] =
-    for {
-      mediaEntity <- mediaEntities
-      userDefinedMetadata <- mediaEntity.metadata
-    } yield {
-      UserDefinedProductMetadataFeatures(
-        isMonetizable = userDefinedMetadata.monetizable,
-        isEmbeddable = userDefinedMetadata.embeddable,
-        hasSelectedPreviewImage = Some(userDefinedMetadata.previewImage.nonEmpty),
-        hasTitle = userDefinedMetadata.title.map(_.nonEmpty),
-        hasDescription = userDefinedMetadata.description.map(_.nonEmpty),
-        hasVisitSiteCallToAction = userDefinedMetadata.callToActions.map(_.visitSite.nonEmpty),
-        hasAppInstallCallToAction = userDefinedMetadata.callToActions.map(_.appInstall.nonEmpty),
-        hasWatchNowCallToAction = userDefinedMetadata.callToActions.map(_.watchNow.nonEmpty)
-      )
-    }
-
-  private def getOptBooleanFromSeqOpt(
-    seqOpt: Seq[Option[Boolean]]
-  ): Option[Boolean] = Some(
-    seqOpt.exists(boolOpt => boolOpt.contains(true))
-  )
-}
-
-case class MediaSizeFeatures(width: Int, height: Int, resizeMethod: Int)
-
-case class PlaybackFeatures(
-  durationMs: Option[Int],
-  bitRate: Option[Int],
-  aspectRatioNum: Option[Short],
-  aspectRatioDen: Option[Short])
-
-case class UserDefinedProductMetadataFeatures(
-  isMonetizable: Option[Boolean],
-  isEmbeddable: Option[Boolean],
-  hasSelectedPreviewImage: Option[Boolean],
-  hasTitle: Option[Boolean],
-  hasDescription: Option[Boolean],
-  hasVisitSiteCallToAction: Option[Boolean],
-  hasAppInstallCallToAction: Option[Boolean],
-  hasWatchNowCallToAction: Option[Boolean])
diff --git a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/content/TweetTextFeaturesExtractor.scala b/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/content/TweetTextFeaturesExtractor.scala
deleted file mode 100644
index 0a403d98a..000000000
--- a/home-mixer/server/src/main/scala/com/twitter/home_mixer/util/tweetypie/content/TweetTextFeaturesExtractor.scala
+++ /dev/null
@@ -1,44 +0,0 @@
-package com.twitter.home_mixer.util.tweetypie.content
-
-import com.twitter.home_mixer.model.ContentFeatures
-import com.twitter.tweetypie.{thriftscala => tp}
-
-object TweetTextFeaturesExtractor {
-
-  private val QUESTION_MARK_CHARS = Set(
-    '\u003F', '\u00BF', '\u037E', '\u055E', '\u061F', '\u1367', '\u1945', '\u2047', '\u2048',
-    '\u2049', '\u2753', '\u2754', '\u2CFA', '\u2CFB', '\u2E2E', '\uA60F', '\uA6F7', '\uFE16',
-    '\uFE56', '\uFF1F', '\u1114', '\u1E95'
-  )
-  private val NEW_LINE_REGEX = "\r\n|\r|\n".r
-
-  def addTextFeaturesFromTweet(
-    inputFeatures: ContentFeatures,
-    tweet: tp.Tweet
-  ): ContentFeatures = {
-    tweet.coreData
-      .map { coreData =>
-        val tweetText = coreData.text
-
-        inputFeatures.copy(
-          hasQuestion = hasQuestionCharacter(tweetText),
-          length = getLength(tweetText).toShort,
-          numCaps = getCaps(tweetText).toShort,
-          numWhiteSpaces = getSpaces(tweetText).toShort,
-          numNewlines = Some(getNumNewlines(tweetText)),
-        )
-      }
-      .getOrElse(inputFeatures)
-  }
-
-  def getLength(text: String): Int =
-    text.codePointCount(0, text.length())
-
-  def getCaps(text: String): Int = text.count(Character.isUpperCase)
-
-  def getSpaces(text: String): Int = text.count(Character.isWhitespace)
-
-  def hasQuestionCharacter(text: String): Boolean = text.exists(QUESTION_MARK_CHARS.contains)
-
-  def getNumNewlines(text: String): Short = NEW_LINE_REGEX.findAllIn(text).length.toShort
-}