diff --git a/logos/examples/tests/compose_attach_node_control.rs b/logos/examples/tests/compose_attach_node_control.rs
index f265f01..a1fdc8d 100644
--- a/logos/examples/tests/compose_attach_node_control.rs
+++ b/logos/examples/tests/compose_attach_node_control.rs
@@ -33,6 +33,11 @@ async fn compose_attach_mode_queries_node_api_opt_in() -> Result<()> {
         Err(error) => return Err(Error::new(error)),
     };
 
+    attached_runner
+        .wait_network_ready()
+        .await
+        .map_err(|err| anyhow!("compose attached runner readiness failed: {err}"))?;
+
     if attached_runner.context().node_clients().is_empty() {
         return Err(anyhow!("compose attach resolved no node clients"));
     }
@@ -89,12 +94,7 @@ async fn compose_attach_mode_restart_node_opt_in() -> Result<()> {
         .node_control()
         .ok_or_else(|| anyhow!("attached compose node control is unavailable"))?;
 
-    let services: Vec<String> = attached_runner
-        .context()
-        .borrowed_nodes()
-        .into_iter()
-        .map(|node| node.identity)
-        .collect();
+    let services = discover_attached_services(&project_name).await?;
 
     if services.is_empty() {
         return Err(anyhow!("attached compose runner discovered no services"));
@@ -166,6 +166,36 @@ async fn service_started_at(project: &str, service: &str) -> Result<String> {
     Ok(started_at)
 }
 
+async fn discover_attached_services(project: &str) -> Result<Vec<String>> {
+    let output = run_docker(&[
+        "ps",
+        "--filter",
+        &format!("label=com.docker.compose.project={project}"),
+        "--filter",
+        "label=testing-framework.node=true",
+        "--format",
+        "{{.Label \"com.docker.compose.service\"}}",
+    ])
+    .await?;
+
+    let mut services: Vec<String> = output
+        .lines()
+        .map(str::trim)
+        .filter(|value| !value.is_empty())
+        .map(ToOwned::to_owned)
+        .collect();
+    services.sort();
+    services.dedup();
+
+    if services.is_empty() {
+        return Err(anyhow!(
+            "attached compose runner discovered no labeled services"
+        ));
+    }
+
+    Ok(services)
+}
+
 async fn wait_until_service_restarted(
     project: &str,
     service: &str,
diff --git a/logos/runtime/ext/src/compose_env.rs b/logos/runtime/ext/src/compose_env.rs
index 4fa3018..9803b12 100644
--- a/logos/runtime/ext/src/compose_env.rs
+++ b/logos/runtime/ext/src/compose_env.rs
@@ -254,6 +254,7 @@ fn build_compose_node_descriptor(
         base_volumes(),
         default_extra_hosts(),
         ports,
+        api_port,
         environment,
         platform,
     )
diff --git a/testing-framework/core/src/scenario/control.rs b/testing-framework/core/src/scenario/control.rs
index d19f871..4f59621 100644
--- a/testing-framework/core/src/scenario/control.rs
+++ b/testing-framework/core/src/scenario/control.rs
@@ -33,3 +33,11 @@ pub trait NodeControlHandle<E: Application>: Send + Sync {
         None
     }
 }
+
+/// Deployer-agnostic wait surface for cluster readiness checks.
+#[async_trait]
+pub trait ClusterWaitHandle<E: Application>: Send + Sync {
+    async fn wait_network_ready(&self) -> Result<(), DynError> {
+        Err("wait_network_ready not supported by this deployer".into())
+    }
+}
diff --git a/testing-framework/core/src/scenario/mod.rs b/testing-framework/core/src/scenario/mod.rs
index 411bdf1..f2e43d6 100644
--- a/testing-framework/core/src/scenario/mod.rs
+++ b/testing-framework/core/src/scenario/mod.rs
@@ -25,7 +25,7 @@ pub use capabilities::{
     StartNodeOptions, StartedNode,
 };
 pub use common_builder_ext::CoreBuilderExt;
-pub use control::NodeControlHandle;
+pub use control::{ClusterWaitHandle, NodeControlHandle};
 #[doc(hidden)]
 pub use definition::{
     Builder as CoreBuilder, // internal adapter-facing core builder
diff --git a/testing-framework/core/src/scenario/runtime/context.rs b/testing-framework/core/src/scenario/runtime/context.rs
index 8e26133..6441149 100644
--- a/testing-framework/core/src/scenario/runtime/context.rs
+++ b/testing-framework/core/src/scenario/runtime/context.rs
@@ -1,7 +1,10 @@
 use std::{sync::Arc, time::Duration};
 
 use super::{metrics::Metrics, node_clients::ClusterClient};
-use crate::scenario::{Application, BorrowedNode, ManagedNode, NodeClients, NodeControlHandle};
+use crate::scenario::{
+    Application, BorrowedNode, ClusterWaitHandle, DynError, ManagedNode, NodeClients,
+    NodeControlHandle,
+};
 
 /// Shared runtime context available to workloads and expectations.
 pub struct RunContext<E: Application> {
@@ -12,6 +15,7 @@ pub struct RunContext<E: Application> {
     telemetry: Metrics,
     feed: <E::FeedRuntime as super::FeedRuntime>::Feed,
     node_control: Option<Arc<dyn NodeControlHandle<E>>>,
+    cluster_wait: Option<Arc<dyn ClusterWaitHandle<E>>>,
 }
 
 impl<E: Application> RunContext<E> {
@@ -36,9 +40,16 @@ impl<E: Application> RunContext<E> {
             telemetry,
             feed,
             node_control,
+            cluster_wait: None,
         }
     }
 
+    #[must_use]
+    pub fn with_cluster_wait(mut self, cluster_wait: Arc<dyn ClusterWaitHandle<E>>) -> Self {
+        self.cluster_wait = Some(cluster_wait);
+        self
+    }
+
     #[must_use]
     pub fn descriptors(&self) -> &E::Deployment {
         &self.descriptors
@@ -104,11 +115,29 @@ impl<E: Application> RunContext<E> {
         self.node_control.clone()
     }
 
+    #[must_use]
+    pub fn cluster_wait(&self) -> Option<Arc<dyn ClusterWaitHandle<E>>> {
+        self.cluster_wait.clone()
+    }
+
     #[must_use]
     pub const fn controls_nodes(&self) -> bool {
         self.node_control.is_some()
     }
 
+    #[must_use]
+    pub const fn can_wait_network_ready(&self) -> bool {
+        self.cluster_wait.is_some()
+    }
+
+    pub async fn wait_network_ready(&self) -> Result<(), DynError> {
+        let Some(cluster_wait) = self.cluster_wait() else {
+            return Err("wait_network_ready is not available for this runner".into());
+        };
+
+        cluster_wait.wait_network_ready().await
+    }
+
     #[must_use]
     pub const fn cluster_client(&self) -> ClusterClient<'_, E> {
         self.node_clients.cluster_client()
@@ -156,6 +185,10 @@ impl<E: Application> RunHandle<E> {
     pub fn context(&self) -> &RunContext<E> {
         &self.run_context
     }
+
+    pub async fn wait_network_ready(&self) -> Result<(), DynError> {
+        self.run_context.wait_network_ready().await
+    }
 }
 
 /// Derived metrics about the current run timing.
diff --git a/testing-framework/core/src/scenario/runtime/runner.rs b/testing-framework/core/src/scenario/runtime/runner.rs
index bcc453b..ac7bff9 100644
--- a/testing-framework/core/src/scenario/runtime/runner.rs
+++ b/testing-framework/core/src/scenario/runtime/runner.rs
@@ -43,6 +43,10 @@ impl<E: Application> Runner<E> {
         Arc::clone(&self.context)
     }
 
+    pub async fn wait_network_ready(&self) -> Result<(), DynError> {
+        self.context.wait_network_ready().await
+    }
+
     pub(crate) fn cleanup(&mut self) {
         if let Some(guard) = self.cleanup_guard.take() {
             guard.cleanup();
diff --git a/testing-framework/deployers/compose/assets/docker-compose.yml.tera b/testing-framework/deployers/compose/assets/docker-compose.yml.tera
index 75fe122..c6ecc29 100644
--- a/testing-framework/deployers/compose/assets/docker-compose.yml.tera
+++ b/testing-framework/deployers/compose/assets/docker-compose.yml.tera
@@ -20,6 +20,7 @@ services:
 {% endfor %}
     labels:
       testing-framework.node: "true"
+      testing-framework.api-container-port: "{{ node.api_container_port }}"
     environment:
 {% for env in node.environment %}
       {{ env.key }}: "{{ env.value }}"
diff --git a/testing-framework/deployers/compose/src/deployer/attach_provider.rs b/testing-framework/deployers/compose/src/deployer/attach_provider.rs
index 23d574e..a1d0412 100644
--- a/testing-framework/deployers/compose/src/deployer/attach_provider.rs
+++ b/testing-framework/deployers/compose/src/deployer/attach_provider.rs
@@ -2,13 +2,15 @@ use std::marker::PhantomData;
 
 use async_trait::async_trait;
 use testing_framework_core::scenario::{
-    AttachProvider, AttachProviderError, AttachSource, AttachedNode, DynError, ExternalNodeSource,
+    AttachProvider, AttachProviderError, AttachSource, AttachedNode, ClusterWaitHandle, DynError,
+    ExternalNodeSource, HttpReadinessRequirement, wait_http_readiness,
 };
 use url::Url;
 
 use crate::{
     docker::attached::{
-        discover_attachable_services, discover_service_container_id, inspect_mapped_tcp_ports,
+        discover_attachable_services, discover_service_container_id,
+        inspect_api_container_port_label, inspect_mapped_tcp_ports,
     },
     env::ComposeDeployEnv,
 };
@@ -18,6 +20,12 @@ pub(super) struct ComposeAttachProvider<E: ComposeDeployEnv> {
     _env: PhantomData<E>,
 }
 
+pub(super) struct ComposeAttachedClusterWait<E: ComposeDeployEnv> {
+    host: String,
+    source: AttachSource,
+    _env: PhantomData<E>,
+}
+
 #[derive(Debug, thiserror::Error)]
 enum ComposeAttachDiscoveryError {
     #[error("compose attach source requires an explicit project name")]
@@ -33,6 +41,16 @@ impl<E: ComposeDeployEnv> ComposeAttachProvider<E> {
     }
 }
 
+impl<E: ComposeDeployEnv> ComposeAttachedClusterWait<E> {
+    pub(super) fn new(host: String, source: AttachSource) -> Self {
+        Self {
+            host,
+            source,
+            _env: PhantomData,
+        }
+    }
+}
+
 #[async_trait]
 impl<E: ComposeDeployEnv> AttachProvider<E> for ComposeAttachProvider<E> {
     async fn discover(
@@ -87,7 +105,10 @@ fn to_discovery_error(source: DynError) -> AttachProviderError {
     AttachProviderError::Discovery { source }
 }
 
-async fn resolve_services(project: &str, requested: &[String]) -> Result<Vec<String>, DynError> {
+pub(super) async fn resolve_services(
+    project: &str,
+    requested: &[String],
+) -> Result<Vec<String>, DynError> {
     if !requested.is_empty() {
         return Ok(requested.to_owned());
     }
@@ -95,34 +116,61 @@ async fn resolve_services(project: &str, requested: &[String]) -> Result<Vec<Str
     discover_attachable_services(project).await
 }
 
-async fn discover_api_port(container_id: &str) -> Result<u16, DynError> {
+pub(super) async fn discover_api_port(container_id: &str) -> Result<u16, DynError> {
     let mapped_ports = inspect_mapped_tcp_ports(container_id).await?;
-    match mapped_ports.as_slice() {
-        [] => Err(format!(
-            "no mapped tcp ports discovered for attached compose service container '{container_id}'"
-        )
-        .into()),
-        [port] => Ok(port.host_port),
-        _ => {
-            let mapped_ports = mapped_ports
-                .iter()
-                .map(|port| format!("{}->{}", port.container_port, port.host_port))
-                .collect::<Vec<_>>()
-                .join(", ");
+    let api_container_port = inspect_api_container_port_label(container_id).await?;
+    let Some(api_port) = mapped_ports
+        .iter()
+        .find(|port| port.container_port == api_container_port)
+        .map(|port| port.host_port)
+    else {
+        let mapped_ports = mapped_ports
+            .iter()
+            .map(|port| format!("{}->{}", port.container_port, port.host_port))
+            .collect::<Vec<_>>()
+            .join(", ");
 
-            Err(format!(
-                "attached compose service container '{container_id}' has multiple mapped tcp ports ({mapped_ports}); provide a single exposed API port"
-            )
-            .into())
-        }
-    }
+        return Err(format!(
+            "attached compose service container '{container_id}' does not expose labeled API container port {api_container_port}; mapped tcp ports: {mapped_ports}"
+        )
+        .into());
+    };
+
+    Ok(api_port)
 }
 
-fn build_service_endpoint(host: &str, port: u16) -> Result<Url, DynError> {
+pub(super) fn build_service_endpoint(host: &str, port: u16) -> Result<Url, DynError> {
     let endpoint = Url::parse(&format!("http://{host}:{port}/"))?;
     Ok(endpoint)
 }
 
+#[async_trait]
+impl<E: ComposeDeployEnv> ClusterWaitHandle<E> for ComposeAttachedClusterWait<E> {
+    async fn wait_network_ready(&self) -> Result<(), DynError> {
+        let AttachSource::Compose { project, services } = &self.source else {
+            return Err("compose cluster wait requires a compose attach source".into());
+        };
+
+        let project = project
+            .as_ref()
+            .ok_or(ComposeAttachDiscoveryError::MissingProjectName)?;
+        let services = resolve_services(project, services).await?;
+
+        let mut endpoints = Vec::with_capacity(services.len());
+        for service in &services {
+            let container_id = discover_service_container_id(project, service).await?;
+            let api_port = discover_api_port(&container_id).await?;
+            let mut endpoint = build_service_endpoint(&self.host, api_port)?;
+            endpoint.set_path(E::readiness_path());
+            endpoints.push(endpoint);
+        }
+
+        wait_http_readiness(&endpoints, HttpReadinessRequirement::AllNodesReady).await?;
+
+        Ok(())
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::build_service_endpoint;
diff --git a/testing-framework/deployers/compose/src/deployer/orchestrator.rs b/testing-framework/deployers/compose/src/deployer/orchestrator.rs
index a001680..5d69218 100644
--- a/testing-framework/deployers/compose/src/deployer/orchestrator.rs
+++ b/testing-framework/deployers/compose/src/deployer/orchestrator.rs
@@ -3,11 +3,12 @@ use std::{env, sync::Arc, time::Duration};
 use reqwest::Url;
 use testing_framework_core::{
     scenario::{
-        ApplicationExternalProvider, AttachSource, CleanupGuard, DeploymentPolicy, FeedHandle,
-        FeedRuntime, HttpReadinessRequirement, Metrics, NodeClients, NodeControlHandle,
-        ObservabilityCapabilityProvider, ObservabilityInputs, RequiresNodeControl, RunContext,
-        Runner, Scenario, ScenarioSources, SourceOrchestrationPlan, SourceProviders,
-        StaticManagedProvider, build_source_orchestration_plan, orchestrate_sources_with_providers,
+        ApplicationExternalProvider, AttachSource, CleanupGuard, ClusterWaitHandle,
+        DeploymentPolicy, FeedHandle, FeedRuntime, HttpReadinessRequirement, Metrics, NodeClients,
+        NodeControlHandle, ObservabilityCapabilityProvider, ObservabilityInputs,
+        RequiresNodeControl, RunContext, Runner, Scenario, ScenarioSources,
+        SourceOrchestrationPlan, SourceProviders, StaticManagedProvider,
+        build_source_orchestration_plan, orchestrate_sources_with_providers,
     },
     topology::DeploymentDescriptor,
 };
@@ -15,7 +16,7 @@ use tracing::info;
 
 use super::{
     ComposeDeployer, ComposeDeploymentMetadata,
-    attach_provider::ComposeAttachProvider,
+    attach_provider::{ComposeAttachProvider, ComposeAttachedClusterWait},
     clients::ClientBuilder,
     make_cleanup_guard,
     ports::PortManager,
@@ -117,6 +118,7 @@ impl<E: ComposeDeployEnv> DeploymentOrchestrator<E> {
                 deployed,
                 observability,
                 readiness_enabled,
+                project_name.clone(),
             )
             .await?;
 
@@ -154,6 +156,7 @@ impl<E: ComposeDeployEnv> DeploymentOrchestrator<E> {
         self.ensure_non_empty_node_clients(&node_clients)?;
 
         let node_control = self.attached_node_control::<Caps>(scenario)?;
+        let cluster_wait = self.attached_cluster_wait(scenario)?;
         let (feed, feed_task) = spawn_block_feed_with_retry::<E>(&node_clients).await?;
         let context = RunContext::new(
             scenario.deployment().clone(),
@@ -163,7 +166,8 @@ impl<E: ComposeDeployEnv> DeploymentOrchestrator<E> {
             observability.telemetry_handle()?,
             feed,
             node_control,
-        );
+        )
+        .with_cluster_wait(cluster_wait);
 
         let cleanup_guard: Box<dyn CleanupGuard> = Box::new(feed_task);
         Ok(Runner::new(context, Some(cleanup_guard)))
@@ -237,6 +241,25 @@ impl<E: ComposeDeployEnv> DeploymentOrchestrator<E> {
         }) as Arc<dyn NodeControlHandle<E>>))
     }
 
+    fn attached_cluster_wait<Caps>(
+        &self,
+        scenario: &Scenario<E, Caps>,
+    ) -> Result<Arc<dyn ClusterWaitHandle<E>>, ComposeRunnerError>
+    where
+        Caps: Send + Sync,
+    {
+        let ScenarioSources::Attached { attach, .. } = scenario.sources() else {
+            return Err(ComposeRunnerError::InternalInvariant {
+                message: "compose attached cluster wait requested outside attached source mode",
+            });
+        };
+
+        Ok(Arc::new(ComposeAttachedClusterWait::<E>::new(
+            compose_runner_host(),
+            attach.clone(),
+        )))
+    }
+
     async fn build_runner<Caps>(
         &self,
         scenario: &Scenario<E, Caps>,
@@ -244,6 +267,7 @@ impl<E: ComposeDeployEnv> DeploymentOrchestrator<E> {
         deployed: DeployedNodes<E>,
         observability: ObservabilityInputs,
         readiness_enabled: bool,
+        project_name: String,
     ) -> Result<Runner<E>, ComposeRunnerError>
     where
         Caps: RequiresNodeControl + ObservabilityCapabilityProvider + Send + Sync,
@@ -263,6 +287,10 @@ impl<E: ComposeDeployEnv> DeploymentOrchestrator<E> {
             telemetry,
             environment: &mut prepared.environment,
             node_control,
+            cluster_wait: Arc::new(ComposeAttachedClusterWait::<E>::new(
+                compose_runner_host(),
+                AttachSource::compose(Vec::new()).with_project(project_name),
+            )),
         };
         let runtime = build_compose_runtime::<E>(input).await?;
         let cleanup_guard =
@@ -376,6 +404,7 @@ struct RuntimeBuildInput<'a, E: ComposeDeployEnv> {
     telemetry: Metrics,
     environment: &'a mut StackEnvironment,
     node_control: Option<Arc<dyn NodeControlHandle<E>>>,
+    cluster_wait: Arc<dyn ClusterWaitHandle<E>>,
 }
 
 async fn build_compose_runtime<E: ComposeDeployEnv>(
@@ -400,6 +429,7 @@ async fn build_compose_runtime<E: ComposeDeployEnv>(
         input.telemetry,
         feed,
         input.node_control,
+        input.cluster_wait,
     );
 
     Ok(ComposeRuntime { context, feed_task })
@@ -443,6 +473,7 @@ fn build_run_context<E: ComposeDeployEnv>(
     telemetry: Metrics,
     feed: <E::FeedRuntime as FeedRuntime>::Feed,
     node_control: Option<Arc<dyn NodeControlHandle<E>>>,
+    cluster_wait: Arc<dyn ClusterWaitHandle<E>>,
 ) -> RunContext<E> {
     RunContext::new(
         descriptors,
@@ -453,6 +484,7 @@ fn build_run_context<E: ComposeDeployEnv>(
         feed,
         node_control,
     )
+    .with_cluster_wait(cluster_wait)
 }
 
 fn resolve_observability_inputs<E, Caps>(
diff --git a/testing-framework/deployers/compose/src/descriptor/node.rs b/testing-framework/deployers/compose/src/descriptor/node.rs
index c5f769b..d35f8f5 100644
--- a/testing-framework/deployers/compose/src/descriptor/node.rs
+++ b/testing-framework/deployers/compose/src/descriptor/node.rs
@@ -9,6 +9,7 @@ pub struct NodeDescriptor {
     volumes: Vec<String>,
     extra_hosts: Vec<String>,
     ports: Vec<String>,
+    api_container_port: u16,
     environment: Vec<EnvEntry>,
     #[serde(skip_serializing_if = "Option::is_none")]
     platform: Option<String>,
@@ -49,6 +50,7 @@ impl NodeDescriptor {
         volumes: Vec<String>,
         extra_hosts: Vec<String>,
         ports: Vec<String>,
+        api_container_port: u16,
         environment: Vec<EnvEntry>,
         platform: Option<String>,
     ) -> Self {
@@ -59,6 +61,7 @@ impl NodeDescriptor {
             volumes,
             extra_hosts,
             ports,
+            api_container_port,
             environment,
             platform,
         }
@@ -77,4 +80,9 @@ impl NodeDescriptor {
     pub fn environment(&self) -> &[EnvEntry] {
         &self.environment
     }
+
+    #[cfg(test)]
+    pub fn api_container_port(&self) -> u16 {
+        self.api_container_port
+    }
 }
diff --git a/testing-framework/deployers/compose/src/docker/attached.rs b/testing-framework/deployers/compose/src/docker/attached.rs
index babe175..b558a41 100644
--- a/testing-framework/deployers/compose/src/docker/attached.rs
+++ b/testing-framework/deployers/compose/src/docker/attached.rs
@@ -6,6 +6,7 @@ use tokio::process::Command;
 
 pub const ATTACHABLE_NODE_LABEL_KEY: &str = "testing-framework.node";
 pub const ATTACHABLE_NODE_LABEL_VALUE: &str = "true";
+pub const API_CONTAINER_PORT_LABEL_KEY: &str = "testing-framework.api-container-port";
 
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
 pub struct MappedTcpPort {
@@ -75,6 +76,18 @@ pub async fn inspect_mapped_tcp_ports(container_id: &str) -> Result<Vec<MappedTc
     parse_mapped_tcp_ports(&stdout)
 }
 
+pub async fn inspect_api_container_port_label(container_id: &str) -> Result<u16, DynError> {
+    let stdout = run_docker_capture([
+        "inspect",
+        "--format",
+        "{{index .Config.Labels \"testing-framework.api-container-port\"}}",
+        container_id,
+    ])
+    .await?;
+
+    parse_api_container_port_label(&stdout)
+}
+
 pub fn parse_mapped_tcp_ports(raw: &str) -> Result<Vec<MappedTcpPort>, DynError> {
     let ports_value: Value = serde_json::from_str(raw.trim())?;
     let ports_object = ports_value
@@ -194,3 +207,21 @@ fn parse_host_port_binding(binding: &Value) -> Option<u16> {
         .parse::<u16>()
         .ok()
 }
+
+fn parse_api_container_port_label(raw: &str) -> Result<u16, DynError> {
+    let value = raw.trim();
+
+    if value.is_empty() || value == "<no value>" {
+        return Err(format!(
+            "attached compose container is missing required label '{API_CONTAINER_PORT_LABEL_KEY}'"
+        )
+        .into());
+    }
+
+    value.parse::<u16>().map_err(|err| {
+        format!(
+            "attached compose container label '{API_CONTAINER_PORT_LABEL_KEY}' has invalid value '{value}': {err}"
+        )
+        .into()
+    })
+}