diff --git a/logos/runtime/ext/src/scenario/mod.rs b/logos/runtime/ext/src/scenario/mod.rs
index 50c976d..564e46c 100644
--- a/logos/runtime/ext/src/scenario/mod.rs
+++ b/logos/runtime/ext/src/scenario/mod.rs
@@ -9,7 +9,7 @@ use lb_framework::{
 };
 pub use testing_framework_core::scenario::ObservabilityBuilderExt;
 use testing_framework_core::{
-    scenario::{NodeControlScenarioBuilder, ObservabilityScenarioBuilder},
+    scenario::internal::{NodeControlScenarioBuilder, ObservabilityScenarioBuilder},
     topology::{DeploymentProvider, DeploymentSeed, DynTopologyError},
 };
 use tracing::warn;
@@ -18,7 +18,7 @@ use crate::LbcExtEnv;
 
 pub type ScenarioBuilder = testing_framework_core::scenario::ScenarioBuilder<LbcExtEnv>;
 pub type ScenarioBuilderWith<Caps = ()> =
-    testing_framework_core::scenario::CoreBuilder<LbcExtEnv, Caps>;
+    testing_framework_core::scenario::internal::CoreBuilder<LbcExtEnv, Caps>;
 
 pub trait CoreBuilderExt: Sized {
     fn deployment_with(f: impl FnOnce(DeploymentBuilder) -> DeploymentBuilder) -> Self;
diff --git a/testing-framework/core/src/scenario/builder_ext.rs b/testing-framework/core/src/scenario/builder_ext.rs
index b771c2e..f5003b7 100644
--- a/testing-framework/core/src/scenario/builder_ext.rs
+++ b/testing-framework/core/src/scenario/builder_ext.rs
@@ -1,6 +1,8 @@
 use reqwest::Url;
 
-use super::{Application, ObservabilityCapability, ObservabilityScenarioBuilder, ScenarioBuilder};
+use super::{
+    Application, ObservabilityCapability, ScenarioBuilder, internal::ObservabilityScenarioBuilder,
+};
 
 const METRICS_QUERY_URL_FIELD: &str = "metrics_query_url";
 const METRICS_OTLP_INGEST_URL_FIELD: &str = "metrics_otlp_ingest_url";
diff --git a/testing-framework/core/src/scenario/common_builder_ext.rs b/testing-framework/core/src/scenario/common_builder_ext.rs
index 76b7f49..f0842c3 100644
--- a/testing-framework/core/src/scenario/common_builder_ext.rs
+++ b/testing-framework/core/src/scenario/common_builder_ext.rs
@@ -1,8 +1,8 @@
 use std::time::Duration;
 
 use super::{
-    Application, CleanupPolicy, CoreBuilderAccess, DeploymentPolicy, Expectation,
-    HttpReadinessRequirement, RetryPolicy, Workload,
+    Application, CleanupPolicy, DeploymentPolicy, Expectation, HttpReadinessRequirement,
+    RetryPolicy, Workload, internal::CoreBuilderAccess,
 };
 use crate::topology::{DeploymentProvider, DeploymentSeed};
 
diff --git a/testing-framework/core/src/scenario/internal.rs b/testing-framework/core/src/scenario/internal.rs
new file mode 100644
index 0000000..deeb2dd
--- /dev/null
+++ b/testing-framework/core/src/scenario/internal.rs
@@ -0,0 +1,13 @@
+#[doc(hidden)]
+pub use super::builder_ops::CoreBuilderAccess;
+#[doc(hidden)]
+pub use super::definition::{
+    Builder as CoreBuilder, NodeControlScenarioBuilder, ObservabilityScenarioBuilder,
+};
+#[doc(hidden)]
+pub use super::runtime::{
+    ApplicationExternalProvider, AttachProvider, AttachProviderError, AttachedNode, CleanupGuard,
+    FeedHandle, ManagedSource, RuntimeAssembly, SourceOrchestrationPlan, SourceProviders,
+    StaticManagedProvider, build_source_orchestration_plan, orchestrate_sources,
+    orchestrate_sources_with_providers, resolve_sources,
+};
diff --git a/testing-framework/core/src/scenario/mod.rs b/testing-framework/core/src/scenario/mod.rs
index 4089111..52306de 100644
--- a/testing-framework/core/src/scenario/mod.rs
+++ b/testing-framework/core/src/scenario/mod.rs
@@ -10,6 +10,7 @@ mod control;
 mod definition;
 mod deployment_policy;
 mod expectation;
+pub mod internal;
 mod observability;
 mod runtime;
 mod sources;
@@ -18,31 +19,16 @@ mod workload;
 pub type DynError = Box<dyn Error + Send + Sync + 'static>;
 
 pub use builder_ext::{BuilderInputError, ObservabilityBuilderExt};
-#[doc(hidden)]
-pub use builder_ops::CoreBuilderAccess;
 pub use capabilities::{
     NodeControlCapability, ObservabilityCapability, PeerSelection, RequiresNodeControl,
     StartNodeOptions, StartedNode,
 };
 pub use common_builder_ext::CoreBuilderExt;
 pub use control::{ClusterWaitHandle, NodeControlHandle};
-#[doc(hidden)]
-pub use definition::{
-    Builder as CoreBuilder, // internal adapter-facing core builder
-    NodeControlScenarioBuilder,
-    ObservabilityScenarioBuilder,
-};
 pub use definition::{Scenario, ScenarioBuildError, ScenarioBuilder};
 pub use deployment_policy::{CleanupPolicy, DeploymentPolicy, RetryPolicy};
 pub use expectation::Expectation;
 pub use observability::{ObservabilityCapabilityProvider, ObservabilityInputs};
-#[doc(hidden)]
-pub use runtime::{
-    ApplicationExternalProvider, AttachProvider, AttachProviderError, AttachedNode, CleanupGuard,
-    FeedHandle, ManagedSource, RuntimeAssembly, SourceOrchestrationPlan, SourceProviders,
-    StaticManagedProvider, build_source_orchestration_plan, orchestrate_sources,
-    orchestrate_sources_with_providers, resolve_sources,
-};
 pub use runtime::{
     Deployer, Feed, FeedRuntime, HttpReadinessRequirement, NodeClients, ReadinessError, RunContext,
     RunHandle, RunMetrics, Runner, ScenarioError, StabilizationConfig,
diff --git a/testing-framework/core/src/workloads/chaos.rs b/testing-framework/core/src/workloads/chaos.rs
index 38fba98..6c6be9b 100644
--- a/testing-framework/core/src/workloads/chaos.rs
+++ b/testing-framework/core/src/workloads/chaos.rs
@@ -5,7 +5,9 @@ use rand::{Rng as _, seq::SliceRandom as _, thread_rng};
 use tokio::time::{Instant, sleep};
 
 use crate::{
-    scenario::{Application, CoreBuilder, DynError, NodeControlCapability, RunContext, Workload},
+    scenario::{
+        Application, DynError, NodeControlCapability, RunContext, Workload, internal::CoreBuilder,
+    },
     topology::DeploymentDescriptor,
 };
 
diff --git a/testing-framework/deployers/compose/src/deployer/attach_provider.rs b/testing-framework/deployers/compose/src/deployer/attach_provider.rs
index 24c16d6..2b35207 100644
--- a/testing-framework/deployers/compose/src/deployer/attach_provider.rs
+++ b/testing-framework/deployers/compose/src/deployer/attach_provider.rs
@@ -2,8 +2,9 @@ use std::marker::PhantomData;
 
 use async_trait::async_trait;
 use testing_framework_core::scenario::{
-    AttachProvider, AttachProviderError, AttachedNode, ClusterWaitHandle, DynError,
-    ExistingCluster, ExternalNodeSource, HttpReadinessRequirement, wait_http_readiness,
+    ClusterWaitHandle, DynError, ExistingCluster, ExternalNodeSource, HttpReadinessRequirement,
+    internal::{AttachProvider, AttachProviderError, AttachedNode},
+    wait_http_readiness,
 };
 use url::Url;
 
diff --git a/testing-framework/deployers/compose/src/deployer/clients.rs b/testing-framework/deployers/compose/src/deployer/clients.rs
index 665acc3..0574391 100644
--- a/testing-framework/deployers/compose/src/deployer/clients.rs
+++ b/testing-framework/deployers/compose/src/deployer/clients.rs
@@ -1,6 +1,8 @@
 use std::{fmt::Debug, marker::PhantomData};
 
-use testing_framework_core::scenario::{Application, FeedHandle, FeedRuntime, NodeClients};
+use testing_framework_core::scenario::{
+    Application, FeedRuntime, NodeClients, internal::FeedHandle,
+};
 use tracing::{info, warn};
 
 use crate::{
diff --git a/testing-framework/deployers/compose/src/deployer/mod.rs b/testing-framework/deployers/compose/src/deployer/mod.rs
index 9771a9a..3624563 100644
--- a/testing-framework/deployers/compose/src/deployer/mod.rs
+++ b/testing-framework/deployers/compose/src/deployer/mod.rs
@@ -9,8 +9,9 @@ use std::marker::PhantomData;
 
 use async_trait::async_trait;
 use testing_framework_core::scenario::{
-    CleanupGuard, Deployer, DynError, ExistingCluster, FeedHandle, IntoExistingCluster,
-    ObservabilityCapabilityProvider, RequiresNodeControl, Runner, Scenario,
+    Deployer, DynError, ExistingCluster, IntoExistingCluster, ObservabilityCapabilityProvider,
+    RequiresNodeControl, Runner, Scenario,
+    internal::{CleanupGuard, FeedHandle},
 };
 
 use crate::{env::ComposeDeployEnv, errors::ComposeRunnerError, lifecycle::cleanup::RunnerCleanup};
diff --git a/testing-framework/deployers/compose/src/deployer/orchestrator.rs b/testing-framework/deployers/compose/src/deployer/orchestrator.rs
index 452867a..3c43961 100644
--- a/testing-framework/deployers/compose/src/deployer/orchestrator.rs
+++ b/testing-framework/deployers/compose/src/deployer/orchestrator.rs
@@ -3,12 +3,15 @@ use std::{env, sync::Arc, time::Duration};
 use reqwest::Url;
 use testing_framework_core::{
     scenario::{
-        Application, ApplicationExternalProvider, CleanupGuard, ClusterControlProfile, ClusterMode,
-        ClusterWaitHandle, DeploymentPolicy, DynError, ExistingCluster, FeedHandle, FeedRuntime,
-        HttpReadinessRequirement, Metrics, NodeClients, NodeControlHandle,
-        ObservabilityCapabilityProvider, ObservabilityInputs, RequiresNodeControl, Runner,
-        RuntimeAssembly, Scenario, SourceOrchestrationPlan, SourceProviders, StaticManagedProvider,
-        build_source_orchestration_plan, orchestrate_sources_with_providers,
+        Application, ClusterControlProfile, ClusterMode, ClusterWaitHandle, DeploymentPolicy,
+        DynError, ExistingCluster, FeedRuntime, HttpReadinessRequirement, Metrics, NodeClients,
+        NodeControlHandle, ObservabilityCapabilityProvider, ObservabilityInputs,
+        RequiresNodeControl, Runner, Scenario,
+        internal::{
+            ApplicationExternalProvider, CleanupGuard, FeedHandle, RuntimeAssembly,
+            SourceOrchestrationPlan, SourceProviders, StaticManagedProvider,
+            build_source_orchestration_plan, orchestrate_sources_with_providers,
+        },
     },
     topology::DeploymentDescriptor,
 };
diff --git a/testing-framework/deployers/compose/src/infrastructure/environment.rs b/testing-framework/deployers/compose/src/infrastructure/environment.rs
index 2c98c50..b4bb6bd 100644
--- a/testing-framework/deployers/compose/src/infrastructure/environment.rs
+++ b/testing-framework/deployers/compose/src/infrastructure/environment.rs
@@ -6,7 +6,7 @@ use std::{
 
 use anyhow::anyhow;
 use reqwest::Url;
-use testing_framework_core::{scenario::CleanupGuard, topology::DeploymentDescriptor};
+use testing_framework_core::{scenario::internal::CleanupGuard, topology::DeploymentDescriptor};
 use tokio::{net::TcpStream, process::Command};
 use tokio_retry::{Retry, strategy::FixedInterval};
 use tracing::{debug, error, info, warn};
diff --git a/testing-framework/deployers/compose/src/lifecycle/block_feed.rs b/testing-framework/deployers/compose/src/lifecycle/block_feed.rs
index ff72aae..a16dd84 100644
--- a/testing-framework/deployers/compose/src/lifecycle/block_feed.rs
+++ b/testing-framework/deployers/compose/src/lifecycle/block_feed.rs
@@ -1,7 +1,7 @@
 use std::time::Duration;
 
 use testing_framework_core::scenario::{
-    Application, FeedHandle, FeedRuntime, NodeClients, spawn_feed,
+    Application, FeedRuntime, NodeClients, internal::FeedHandle, spawn_feed,
 };
 use tokio::time::sleep;
 use tracing::{debug, info, warn};
diff --git a/testing-framework/deployers/compose/src/lifecycle/cleanup.rs b/testing-framework/deployers/compose/src/lifecycle/cleanup.rs
index 33e9cdc..2a640a2 100644
--- a/testing-framework/deployers/compose/src/lifecycle/cleanup.rs
+++ b/testing-framework/deployers/compose/src/lifecycle/cleanup.rs
@@ -4,7 +4,7 @@ use std::{
     thread,
 };
 
-use testing_framework_core::scenario::CleanupGuard;
+use testing_framework_core::scenario::internal::CleanupGuard;
 use tracing::{debug, info, warn};
 
 use crate::{
diff --git a/testing-framework/deployers/k8s/src/deployer/attach_provider.rs b/testing-framework/deployers/k8s/src/deployer/attach_provider.rs
index bdfa1fe..dbc1bcc 100644
--- a/testing-framework/deployers/k8s/src/deployer/attach_provider.rs
+++ b/testing-framework/deployers/k8s/src/deployer/attach_provider.rs
@@ -7,8 +7,9 @@ use kube::{
     api::{ListParams, ObjectList},
 };
 use testing_framework_core::scenario::{
-    AttachProvider, AttachProviderError, AttachedNode, ClusterWaitHandle, DynError,
-    ExistingCluster, ExternalNodeSource, HttpReadinessRequirement, wait_http_readiness,
+    ClusterWaitHandle, DynError, ExistingCluster, ExternalNodeSource, HttpReadinessRequirement,
+    internal::{AttachProvider, AttachProviderError, AttachedNode},
+    wait_http_readiness,
 };
 use url::Url;
 
diff --git a/testing-framework/deployers/k8s/src/deployer/orchestrator.rs b/testing-framework/deployers/k8s/src/deployer/orchestrator.rs
index 83ba257..279f035 100644
--- a/testing-framework/deployers/k8s/src/deployer/orchestrator.rs
+++ b/testing-framework/deployers/k8s/src/deployer/orchestrator.rs
@@ -5,12 +5,15 @@ use kube::Client;
 use reqwest::Url;
 use testing_framework_core::{
     scenario::{
-        Application, ApplicationExternalProvider, CleanupGuard, ClusterControlProfile, ClusterMode,
-        ClusterWaitHandle, Deployer, DynError, ExistingCluster, FeedHandle, FeedRuntime,
-        HttpReadinessRequirement, Metrics, MetricsError, NodeClients,
+        Application, ClusterControlProfile, ClusterMode, ClusterWaitHandle, Deployer, DynError,
+        ExistingCluster, FeedRuntime, HttpReadinessRequirement, Metrics, MetricsError, NodeClients,
         ObservabilityCapabilityProvider, ObservabilityInputs, RequiresNodeControl, Runner,
-        RuntimeAssembly, Scenario, SourceOrchestrationPlan, SourceProviders, StaticManagedProvider,
-        build_source_orchestration_plan, orchestrate_sources_with_providers,
+        Scenario,
+        internal::{
+            ApplicationExternalProvider, CleanupGuard, FeedHandle, RuntimeAssembly,
+            SourceOrchestrationPlan, SourceProviders, StaticManagedProvider,
+            build_source_orchestration_plan, orchestrate_sources_with_providers,
+        },
     },
     topology::DeploymentDescriptor,
 };
diff --git a/testing-framework/deployers/k8s/src/infrastructure/cluster.rs b/testing-framework/deployers/k8s/src/infrastructure/cluster.rs
index fa3ee24..66574d4 100644
--- a/testing-framework/deployers/k8s/src/infrastructure/cluster.rs
+++ b/testing-framework/deployers/k8s/src/infrastructure/cluster.rs
@@ -1,7 +1,7 @@
 use kube::Client;
 use reqwest::Url;
 use testing_framework_core::scenario::{
-    CleanupGuard, DynError, HttpReadinessRequirement, NodeClients,
+    DynError, HttpReadinessRequirement, NodeClients, internal::CleanupGuard,
 };
 use tracing::{debug, info};
 use url::ParseError;
diff --git a/testing-framework/deployers/k8s/src/lifecycle/block_feed.rs b/testing-framework/deployers/k8s/src/lifecycle/block_feed.rs
index d50351e..527a285 100644
--- a/testing-framework/deployers/k8s/src/lifecycle/block_feed.rs
+++ b/testing-framework/deployers/k8s/src/lifecycle/block_feed.rs
@@ -1,5 +1,5 @@
 use testing_framework_core::scenario::{
-    Application, FeedHandle, FeedRuntime, NodeClients, spawn_feed,
+    Application, FeedRuntime, NodeClients, internal::FeedHandle, spawn_feed,
 };
 use tracing::{debug, info};
 
diff --git a/testing-framework/deployers/k8s/src/lifecycle/cleanup.rs b/testing-framework/deployers/k8s/src/lifecycle/cleanup.rs
index 6d64ebe..71c86ae 100644
--- a/testing-framework/deployers/k8s/src/lifecycle/cleanup.rs
+++ b/testing-framework/deployers/k8s/src/lifecycle/cleanup.rs
@@ -2,7 +2,7 @@ use std::{io, process::Output, thread};
 
 use k8s_openapi::api::core::v1::Namespace;
 use kube::{Api, Client, api::DeleteParams};
-use testing_framework_core::scenario::CleanupGuard;
+use testing_framework_core::scenario::internal::CleanupGuard;
 use tokio::{
     process::Command,
     runtime::{Handle, Runtime},
diff --git a/testing-framework/deployers/local/src/deployer/orchestrator.rs b/testing-framework/deployers/local/src/deployer/orchestrator.rs
index 5af3d2e..c17f54f 100644
--- a/testing-framework/deployers/local/src/deployer/orchestrator.rs
+++ b/testing-framework/deployers/local/src/deployer/orchestrator.rs
@@ -10,10 +10,14 @@ use std::{
 use async_trait::async_trait;
 use testing_framework_core::{
     scenario::{
-        Application, CleanupGuard, ClusterControlProfile, ClusterMode, Deployer, DeploymentPolicy,
-        DynError, FeedHandle, FeedRuntime, HttpReadinessRequirement, Metrics, NodeClients,
-        NodeControlCapability, NodeControlHandle, RetryPolicy, Runner, RuntimeAssembly, Scenario,
-        ScenarioError, SourceOrchestrationPlan, build_source_orchestration_plan, spawn_feed,
+        Application, ClusterControlProfile, ClusterMode, Deployer, DeploymentPolicy, DynError,
+        FeedRuntime, HttpReadinessRequirement, Metrics, NodeClients, NodeControlCapability,
+        NodeControlHandle, RetryPolicy, Runner, Scenario, ScenarioError,
+        internal::{
+            CleanupGuard, FeedHandle, RuntimeAssembly, SourceOrchestrationPlan,
+            build_source_orchestration_plan,
+        },
+        spawn_feed,
     },
     topology::DeploymentDescriptor,
 };