feat(call,http): expose EventEnvelope-level dispatch API for non-QUIC transports

Make Dispatcher::dispatch_requested pub and extract abort-cascade handling
into a pub handle_abort method so the WebSocket handler can feed deserialized
EventEnvelopes directly to the shared Dispatcher without a QUIC Connection.

CallConnection gains a new_overlay_only(identity) constructor (Option A) that
holds the Layer 2 overlay, PendingRequestMap, and resolved bearer Identity
without a QUIC Connection; identity() reads the stored field for the non-QUIC
case. compose_root_env uses the new identity() accessor for both paths.

The existing QUIC path (CallAdapter, CallClient, run_loop, handle_stream) is
unchanged — outgoing client methods guard on connection().is_none().

crates/alknet-call/src/client/call_client.rs

@@ -708,7 +708,10 @@ mod tests {
         let registry = registry_with_caps();
         let client = CallClient::new(Arc::clone(&registry), Arc::new(NoopIdentityProvider));
         let conn = client.spawn_dispatch(stub_connection());
-        assert_eq!(conn.connection().remote_alpn(), b"alknet/call");
+        assert_eq!(
+            conn.connection().expect("quic connection present").remote_alpn(),
+            b"alknet/call"
+        );
         std::mem::drop(conn);
     }
 

crates/alknet-call/src/protocol/adapter.rs

@@ -556,6 +556,7 @@ mod tests {
             resources: HashMap::new(),
         };
         conn.connection()
+            .expect("quic connection present")
             .set_identity(peer_identity)
             .expect("identity not yet set");
 

crates/alknet-call/src/protocol/connection.rs

@@ -11,6 +11,7 @@ use std::sync::Arc;
 use std::task::{Context, Poll};
 use std::time::{Duration, Instant};
 
+use alknet_core::auth::Identity;
 use alknet_core::types::Connection;
 use futures::stream::Stream;
 use parking_lot::{Mutex, RwLock};
@@ -30,7 +31,8 @@ use crate::registry::registration::{Handler, HandlerRegistration};
 const DEFAULT_CALL_TIMEOUT: Duration = Duration::from_secs(30);
 
 pub struct CallConnection {
-    connection: Arc<Connection>,
+    connection: Option<Arc<Connection>>,
+    stored_identity: Option<Identity>,
     imported_operations: Arc<RwLock<HashMap<String, HandlerRegistration>>>,
     pending: Arc<Mutex<PendingRequestMap>>,
 }
@@ -38,7 +40,8 @@ pub struct CallConnection {
 impl Clone for CallConnection {
     fn clone(&self) -> Self {
         Self {
-            connection: Arc::clone(&self.connection),
+            connection: self.connection.clone(),
+            stored_identity: self.stored_identity.clone(),
             imported_operations: Arc::clone(&self.imported_operations),
             pending: Arc::clone(&self.pending),
         }
@@ -48,17 +51,34 @@ impl Clone for CallConnection {
 impl CallConnection {
     pub fn new(connection: Connection) -> Self {
         Self {
-            connection: Arc::new(connection),
+            connection: Some(Arc::new(connection)),
+            stored_identity: None,
             imported_operations: Arc::new(RwLock::new(HashMap::new())),
             pending: Arc::new(Mutex::new(PendingRequestMap::new())),
         }
     }
 
-    pub fn connection(&self) -> &Arc<Connection> {
-        &self.connection
+    pub fn new_overlay_only(identity: Identity) -> Self {
+        Self {
+            connection: None,
+            stored_identity: Some(identity),
+            imported_operations: Arc::new(RwLock::new(HashMap::new())),
+            pending: Arc::new(Mutex::new(PendingRequestMap::new())),
+        }
     }
 
-    pub(crate) fn pending(&self) -> &Arc<Mutex<PendingRequestMap>> {
+    pub fn connection(&self) -> Option<&Arc<Connection>> {
+        self.connection.as_ref()
+    }
+
+    pub fn identity(&self) -> Option<&Identity> {
+        match &self.connection {
+            Some(c) => c.identity(),
+            None => self.stored_identity.as_ref(),
+        }
+    }
+
+    pub fn pending(&self) -> &Arc<Mutex<PendingRequestMap>> {
         &self.pending
     }
 
@@ -95,7 +115,17 @@ impl CallConnection {
     pub async fn call_with_payload(&self, payload: Value) -> ResponseEnvelope {
         let request_id = generate_request_id();
 
-        let (send, recv) = match self.connection.open_bi().await {
+        let connection = match &self.connection {
+            Some(c) => c,
+            None => {
+                return ResponseEnvelope::error(
+                    request_id,
+                    CallError::internal("no underlying connection (overlay-only)"),
+                );
+            }
+        };
+
+        let (send, recv) = match connection.open_bi().await {
             Ok(pair) => pair,
             Err(err) => {
                 let call_error = CallError::internal(format!("failed to open stream: {err}"));
@@ -143,7 +173,15 @@ impl CallConnection {
             "input": input,
         });
 
-        let (send, recv) = match self.connection.open_bi().await {
+        let connection = match &self.connection {
+            Some(c) => c,
+            None => {
+                let call_error = CallError::internal("no underlying connection (overlay-only)");
+                return SubscriptionStream::closed(request_id, call_error);
+            }
+        };
+
+        let (send, recv) = match connection.open_bi().await {
             Ok(pair) => pair,
             Err(err) => {
                 let call_error = CallError::internal(format!("failed to open stream: {err}"));
@@ -196,8 +234,11 @@ impl CallConnection {
     }
 
     async fn write_envelope(&self, envelope: &EventEnvelope) -> Result<(), String> {
-        let (send, _recv) = self
+        let connection = self
             .connection
+            .as_ref()
+            .ok_or_else(|| "no underlying connection (overlay-only)".to_string())?;
+        let (send, _recv) = connection
             .open_bi()
             .await
             .map_err(|e| format!("failed to open stream: {e}"))?;
@@ -574,7 +615,10 @@ mod tests {
     #[test]
     fn connection_accessor_returns_underlying_connection() {
         let conn = CallConnection::new(stub_connection());
-        assert_eq!(conn.connection().remote_alpn(), b"alknet/call");
+        assert_eq!(
+            conn.connection().expect("quic connection present").remote_alpn(),
+            b"alknet/call"
+        );
     }
 
     #[test]
@@ -813,4 +857,92 @@ mod tests {
             "stream terminates after error"
         );
     }
+
+    // --- non-QUIC (overlay-only) CallConnection ---------------------------
+
+    fn sample_identity(id: &str) -> Identity {
+        Identity {
+            id: id.to_string(),
+            scopes: vec!["fs:read".to_string()],
+            resources: HashMap::new(),
+        }
+    }
+
+    #[test]
+    fn overlay_only_constructor_has_no_quic_connection() {
+        let conn = CallConnection::new_overlay_only(sample_identity("ws-peer"));
+        assert!(conn.connection().is_none(), "no QUIC connection stored");
+    }
+
+    #[test]
+    fn overlay_only_identity_returns_stored_identity() {
+        let conn = CallConnection::new_overlay_only(sample_identity("ws-peer"));
+        let identity = conn.identity().expect("identity stored");
+        assert_eq!(identity.id, "ws-peer");
+        assert_eq!(identity.scopes, vec!["fs:read".to_string()]);
+    }
+
+    #[test]
+    fn overlay_only_holds_independent_pending_map() {
+        let conn = CallConnection::new_overlay_only(sample_identity("ws-peer"));
+        let pending = Arc::clone(conn.pending());
+        assert!(pending.lock().is_empty());
+        let _rx = pending.lock().register_call(
+            "req-overlay-1".to_string(),
+            Instant::now() + Duration::from_secs(30),
+            None,
+        );
+        assert!(pending.lock().contains("req-overlay-1"));
+    }
+
+    #[test]
+    fn overlay_only_register_imported_populates_overlay() {
+        let conn = CallConnection::new_overlay_only(sample_identity("ws-peer"));
+        let env = conn.overlay_env();
+        assert!(!env.contains("worker/exec"));
+        conn.register_imported(imported_registration("worker/exec"));
+        assert!(env.contains("worker/exec"));
+    }
+
+    #[tokio::test]
+    async fn overlay_only_overlay_env_dispatches_imported_op() {
+        let conn = CallConnection::new_overlay_only(sample_identity("ws-peer"));
+        conn.register_imported(imported_registration("worker/exec"));
+        let env = conn.overlay_env();
+
+        let scoped = ScopedPeerEnv::new(["worker/exec"]);
+        let ctx = root_context("overlay-root-1", scoped, env.clone());
+
+        let response = env
+            .invoke("worker", "exec", serde_json::json!({"v": 1}), &ctx)
+            .await;
+        assert!(response.result.is_ok());
+        assert_eq!(response.result.unwrap(), serde_json::json!({"v": 1}));
+    }
+
+    #[tokio::test]
+    async fn overlay_only_call_without_connection_returns_error() {
+        let conn = CallConnection::new_overlay_only(sample_identity("ws-peer"));
+        let response = conn.call("fs/readFile", serde_json::json!({})).await;
+        let err = response.result.expect_err("no connection → error");
+        assert_eq!(err.code, "INTERNAL");
+    }
+
+    #[test]
+    fn quic_path_identity_returns_connection_identity() {
+        let conn = CallConnection::new(stub_connection());
+        conn.connection()
+            .expect("quic connection present")
+            .set_identity(sample_identity("quic-peer"))
+            .expect("identity not yet set");
+        let identity = conn.identity().expect("identity from connection");
+        assert_eq!(identity.id, "quic-peer");
+    }
+
+    #[test]
+    fn quic_path_stored_identity_is_none_when_connection_present() {
+        let conn = CallConnection::new(stub_connection());
+        assert!(conn.connection().is_some(), "QUIC connection present");
+        assert!(conn.identity().is_none(), "no identity set yet");
+    }
 }

crates/alknet-call/src/protocol/dispatch.rs

@@ -96,7 +96,7 @@ impl Dispatcher {
         }
     }
 
-    pub(crate) fn compose_root_env(
+    pub fn compose_root_env(
         &self,
         connection: &CallConnection,
         context: &OperationContext,
@@ -112,11 +112,7 @@ impl Dispatcher {
         if let Some(session) = session {
             env = env.with_session(session);
         }
-        if let Some(peer_id) = connection
-            .connection()
-            .identity()
-            .map(|identity| identity.id.clone())
-        {
+        if let Some(peer_id) = connection.identity().map(|identity| identity.id.clone()) {
             env.attach_peer(peer_id, connection.overlay_env());
         }
         Arc::new(env)
@@ -164,7 +160,7 @@ impl Dispatcher {
         context
     }
 
-    pub(crate) async fn dispatch_requested(
+    pub async fn dispatch_requested(
         &self,
         connection: &Arc<CallConnection>,
         request_id: String,
@@ -176,7 +172,7 @@ impl Dispatcher {
             .unwrap_or("");
         let operation_name = Self::strip_leading_slash(operation_id).to_string();
 
-        let connection_identity = connection.connection().identity().cloned();
+        let connection_identity = connection.identity().cloned();
         let identity = self.resolve_identity(connection_identity, &payload);
         let forwarded_for = payload
             .get("forwarded_for")
@@ -195,6 +191,16 @@ impl Dispatcher {
         self.registry.invoke(&operation_name, input, context).await
     }
 
+    pub async fn handle_abort(&self, connection: &Arc<CallConnection>, request_id: &str) {
+        let mut pending = connection.pending().lock();
+        let mut cascade = AbortCascade::new(&mut pending);
+        let aborted = cascade.cascade_abort(request_id, AbortPolicy::AbortDependents);
+        pending.handle_aborted(request_id);
+        if !aborted.is_empty() {
+            debug!(count = aborted.len(), "abort cascade evicted descendants");
+        }
+    }
+
     pub(crate) async fn handle_stream(
         &self,
         connection: Arc<CallConnection>,
@@ -231,13 +237,7 @@ impl Dispatcher {
                 }
                 EVENT_ABORTED => {
                     let request_id = envelope.id.clone();
-                    let mut pending = connection.pending().lock();
-                    let mut cascade = AbortCascade::new(&mut pending);
-                    let aborted = cascade.cascade_abort(&request_id, AbortPolicy::AbortDependents);
-                    pending.handle_aborted(&request_id);
-                    if !aborted.is_empty() {
-                        debug!(count = aborted.len(), "abort cascade evicted descendants");
-                    }
+                    self.handle_abort(&connection, &request_id).await;
                 }
                 other => {
                     debug!(event_type = %other, id = %envelope.id, "ignoring non-requested/non-aborted event on inbound stream");
@@ -254,6 +254,14 @@ impl Dispatcher {
     pub async fn run_loop(self, connection: Arc<CallConnection>) {
         let pending = Arc::clone(connection.pending());
 
+        let quic = match connection.connection() {
+            Some(c) => Arc::clone(c),
+            None => {
+                warn!("run_loop called with an overlay-only CallConnection; returning");
+                return;
+            }
+        };
+
         let sweeper_pending = Arc::clone(&pending);
         let sweeper_handle: JoinHandle<()> = tokio::spawn(async move {
             let mut interval = tokio::time::interval(SWEEPER_INTERVAL);
@@ -271,7 +279,7 @@ impl Dispatcher {
         });
 
         loop {
-            match connection.connection().accept_bi().await {
+            match quic.accept_bi().await {
                 Ok((send, recv)) => {
                     let conn = Arc::clone(&connection);
                     let dispatcher = self.clone();
@@ -317,6 +325,7 @@ impl Clone for Dispatcher {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use crate::protocol::wire::EVENT_RESPONDED;
     use crate::registry::registration::{make_handler, HandlerRegistration, OperationProvenance};
     use crate::registry::spec::{AccessControl, OperationSpec, OperationType, Visibility};
     use alknet_core::auth::{AuthToken, Identity, IdentityProvider};
@@ -577,6 +586,7 @@ mod tests {
         let dp = Dispatcher::new(registry, provider);
         let conn = CallConnection::new(stub_connection());
         conn.connection()
+            .expect("quic connection present")
             .set_identity(identity_with_scopes("worker-a", &[]))
             .expect("identity not yet set");
 
@@ -687,4 +697,158 @@ mod tests {
     fn dispatcher_helper_compiles_with_full_signature() {
         let _dp = dispatcher();
     }
+
+    // --- non-QUIC (overlay-only) dispatch path ----------------------------
+
+    fn overlay_only_connection(identity: Identity) -> Arc<CallConnection> {
+        Arc::new(CallConnection::new_overlay_only(identity))
+    }
+
+    #[tokio::test]
+    async fn dispatch_requested_works_with_overlay_only_connection() {
+        let registry = Arc::new(registry_with(
+            "echo/run",
+            Visibility::External,
+            AccessControl::default(),
+        ));
+        let provider: Arc<dyn IdentityProvider> = Arc::new(StaticIdentityProvider::new());
+        let dp = Dispatcher::new(registry, provider);
+        let conn = overlay_only_connection(identity_with_scopes("ws-peer", &[]));
+
+        let payload = serde_json::json!({
+            "operationId": "/echo/run",
+            "input": { "msg": "hello" },
+        });
+        let response = dp
+            .dispatch_requested(&conn, "ws-req-1".to_string(), payload)
+            .await;
+        assert_eq!(response.request_id, "ws-req-1");
+        assert_eq!(response.result, Ok(serde_json::json!({ "msg": "hello" })));
+    }
+
+    #[tokio::test]
+    async fn dispatch_requested_overlay_only_attaches_peer_keyed_by_stored_identity() {
+        let mut registry = OperationRegistry::new();
+        let handler = make_handler(|_input, context| async move {
+            let peer_ids = context.env.peer_ids();
+            ResponseEnvelope::ok(
+                context.request_id,
+                serde_json::json!({ "peer_ids": peer_ids }),
+            )
+        });
+        registry.register(HandlerRegistration::new(
+            external_spec("fs/readFile", AccessControl::default()),
+            handler,
+            OperationProvenance::Local,
+            None,
+            None,
+            Capabilities::new(),
+        ));
+        let registry = Arc::new(registry);
+        let provider: Arc<dyn IdentityProvider> = Arc::new(StaticIdentityProvider::new());
+        let dp = Dispatcher::new(registry, provider);
+        let conn = overlay_only_connection(identity_with_scopes("ws-peer", &[]));
+
+        let payload = serde_json::json!({
+            "operationId": "/fs/readFile",
+            "input": {},
+        });
+        let response = dp
+            .dispatch_requested(&conn, "ws-req-2".to_string(), payload)
+            .await;
+        let out = response.result.expect("ok");
+        assert_eq!(out["peer_ids"], serde_json::json!(["ws-peer"]));
+    }
+
+    #[tokio::test]
+    async fn dispatch_requested_overlay_only_unknown_op_returns_not_found() {
+        let registry = Arc::new(OperationRegistry::new());
+        let provider: Arc<dyn IdentityProvider> = Arc::new(StaticIdentityProvider::new());
+        let dp = Dispatcher::new(registry, provider);
+        let conn = overlay_only_connection(identity_with_scopes("ws-peer", &[]));
+
+        let payload = serde_json::json!({
+            "operationId": "/no/such/op",
+            "input": {},
+        });
+        let response = dp
+            .dispatch_requested(&conn, "ws-req-3".to_string(), payload)
+            .await;
+        match response.result {
+            Err(e) => assert_eq!(e.code, "NOT_FOUND"),
+            other => panic!("expected NOT_FOUND, got {other:?}"),
+        }
+    }
+
+    #[tokio::test]
+    async fn handle_abort_works_with_overlay_only_connection() {
+        let registry = Arc::new(registry_with(
+            "echo/run",
+            Visibility::External,
+            AccessControl::default(),
+        ));
+        let provider: Arc<dyn IdentityProvider> = Arc::new(StaticIdentityProvider::new());
+        let dp = Dispatcher::new(registry, provider);
+        let conn = overlay_only_connection(identity_with_scopes("ws-peer", &[]));
+
+        let parent_id = "ws-abort-root".to_string();
+        let child_id = "ws-abort-child".to_string();
+        {
+            let mut pending = conn.pending().lock();
+            pending.register_call(parent_id.clone(), Instant::now() + Duration::from_secs(30), None);
+            pending.register_call(
+                child_id.clone(),
+                Instant::now() + Duration::from_secs(30),
+                Some(parent_id.clone()),
+            );
+        }
+        assert!(conn.pending().lock().contains(&parent_id));
+        assert!(conn.pending().lock().contains(&child_id));
+
+        dp.handle_abort(&conn, &parent_id).await;
+
+        assert!(
+            !conn.pending().lock().contains(&parent_id),
+            "parent entry removed after abort"
+        );
+        assert!(
+            !conn.pending().lock().contains(&child_id),
+            "child aborted by cascade"
+        );
+    }
+
+    #[tokio::test]
+    async fn handle_abort_unknown_request_id_is_noop_for_overlay_only() {
+        let registry = Arc::new(OperationRegistry::new());
+        let provider: Arc<dyn IdentityProvider> = Arc::new(StaticIdentityProvider::new());
+        let dp = Dispatcher::new(registry, provider);
+        let conn = overlay_only_connection(identity_with_scopes("ws-peer", &[]));
+
+        dp.handle_abort(&conn, "totally-unknown").await;
+        assert!(conn.pending().lock().is_empty());
+    }
+
+    #[tokio::test]
+    async fn overlay_only_full_dispatch_round_trip_returns_response_envelope() {
+        let registry = Arc::new(registry_with(
+            "echo/run",
+            Visibility::External,
+            AccessControl::default(),
+        ));
+        let provider: Arc<dyn IdentityProvider> = Arc::new(StaticIdentityProvider::new());
+        let dp = Dispatcher::new(registry, provider);
+        let conn = overlay_only_connection(identity_with_scopes("ws-peer", &[]));
+
+        let payload = serde_json::json!({
+            "operationId": "/echo/run",
+            "input": { "v": 42 },
+        });
+        let request_id = "ws-roundtrip-1".to_string();
+        let response = dp.dispatch_requested(&conn, request_id.clone(), payload).await;
+        assert!(response.result.is_ok());
+        let envelope: EventEnvelope = response.into();
+        assert_eq!(envelope.r#type, EVENT_RESPONDED);
+        assert_eq!(envelope.id, "ws-roundtrip-1");
+        assert_eq!(envelope.payload.get("output"), Some(&serde_json::json!({ "v": 42 })));
+    }
 }

crates/alknet-http/src/websocket/mod.rs

@@ -4,4 +4,198 @@
 //! native `EventEnvelope` call-protocol session, not the gateway shape
 //! (ADR-048). See `docs/architecture/crates/http/websocket.md`.
 
-// TODO: implement
+#[cfg(test)]
+mod tests {
+    use std::collections::HashMap;
+    use std::sync::Arc;
+    use std::time::{Duration, Instant};
+
+    use alknet_call::protocol::connection::CallConnection;
+    use alknet_call::protocol::dispatch::Dispatcher;
+    use alknet_call::protocol::wire::{EventEnvelope, ResponseEnvelope, EVENT_RESPONDED};
+    use alknet_call::registry::context::AbortPolicy;
+    use alknet_call::registry::registration::{
+        make_handler, HandlerRegistration, OperationProvenance,
+    };
+    use alknet_call::registry::spec::{AccessControl, OperationSpec, OperationType, Visibility};
+    use alknet_core::auth::{Identity, IdentityProvider};
+    use alknet_core::types::Capabilities;
+    use std::sync::Mutex as StdMutex;
+
+    struct StaticIdentityProvider {
+        tokens: StdMutex<HashMap<String, Identity>>,
+    }
+
+    impl StaticIdentityProvider {
+        fn new() -> Self {
+            Self {
+                tokens: StdMutex::new(HashMap::new()),
+            }
+        }
+
+        fn with_token(self, token: &str, identity: Identity) -> Self {
+            self.tokens
+                .lock()
+                .unwrap()
+                .insert(token.to_string(), identity);
+            self
+        }
+    }
+
+    impl IdentityProvider for StaticIdentityProvider {
+        fn resolve_from_fingerprint(&self, _fp: &str) -> Option<Identity> {
+            None
+        }
+        fn resolve_from_token(&self, token: &alknet_core::auth::AuthToken) -> Option<Identity> {
+            let token_str = String::from_utf8_lossy(&token.raw);
+            self.tokens.lock().unwrap().get(token_str.as_ref()).cloned()
+        }
+    }
+
+    fn identity(id: &str) -> Identity {
+        Identity {
+            id: id.to_string(),
+            scopes: vec![],
+            resources: HashMap::new(),
+        }
+    }
+
+    fn external_spec(name: &str) -> OperationSpec {
+        OperationSpec::new(
+            name,
+            OperationType::Query,
+            Visibility::External,
+            serde_json::json!({}),
+            serde_json::json!({}),
+            vec![],
+            AccessControl::default(),
+        )
+    }
+
+    fn echo_registry() -> Arc<alknet_call::registry::registration::OperationRegistry> {
+        let mut registry = alknet_call::registry::registration::OperationRegistry::new();
+        registry.register(HandlerRegistration::new(
+            external_spec("echo/run"),
+            make_handler(|input, ctx| async move { ResponseEnvelope::ok(ctx.request_id, input) }),
+            OperationProvenance::Local,
+            None,
+            None,
+            Capabilities::new(),
+        ));
+        Arc::new(registry)
+    }
+
+    #[tokio::test]
+    async fn ws_dispatch_requested_via_pub_api_returns_response_envelope() {
+        let registry = echo_registry();
+        let provider: Arc<dyn IdentityProvider> = Arc::new(StaticIdentityProvider::new());
+        let dispatcher = Dispatcher::new(registry, provider);
+        let conn = Arc::new(CallConnection::new_overlay_only(identity("ws-peer")));
+
+        let payload = serde_json::json!({
+            "operationId": "/echo/run",
+            "input": { "msg": "hi" },
+        });
+        let request_id = "ws-1".to_string();
+        let response = dispatcher
+            .dispatch_requested(&conn, request_id.clone(), payload)
+            .await;
+        assert!(response.result.is_ok());
+        assert_eq!(response.request_id, "ws-1");
+        assert_eq!(response.result.unwrap(), serde_json::json!({ "msg": "hi" }));
+    }
+
+    #[tokio::test]
+    async fn ws_dispatch_round_trip_event_envelope_via_pub_api() {
+        let registry = echo_registry();
+        let provider: Arc<dyn IdentityProvider> = Arc::new(StaticIdentityProvider::new());
+        let dispatcher = Dispatcher::new(registry, provider);
+        let conn = Arc::new(CallConnection::new_overlay_only(identity("ws-peer")));
+
+        let envelope = EventEnvelope::new(
+            "call.requested",
+            "ws-rt-1",
+            serde_json::json!({
+                "operationId": "/echo/run",
+                "input": { "v": 7 },
+            }),
+        );
+        let response = dispatcher
+            .dispatch_requested(&conn, envelope.id.clone(), envelope.payload.clone())
+            .await;
+        let out: EventEnvelope = response.into();
+        assert_eq!(out.r#type, EVENT_RESPONDED);
+        assert_eq!(out.id, "ws-rt-1");
+        assert_eq!(out.payload.get("output"), Some(&serde_json::json!({ "v": 7 })));
+    }
+
+    #[tokio::test]
+    async fn ws_handle_abort_via_pub_api_cascades_descendants() {
+        let registry = echo_registry();
+        let provider: Arc<dyn IdentityProvider> = Arc::new(StaticIdentityProvider::new());
+        let dispatcher = Dispatcher::new(registry, provider);
+        let conn = Arc::new(CallConnection::new_overlay_only(identity("ws-peer")));
+
+        {
+            let mut pending = conn.pending().lock();
+            pending.register_call(
+                "ws-parent".to_string(),
+                Instant::now() + Duration::from_secs(30),
+                None,
+            );
+            pending.register_call(
+                "ws-child".to_string(),
+                Instant::now() + Duration::from_secs(30),
+                Some("ws-parent".to_string()),
+            );
+        }
+        dispatcher.handle_abort(&conn, "ws-parent").await;
+        assert!(!conn.pending().lock().contains("ws-parent"));
+        assert!(!conn.pending().lock().contains("ws-child"));
+    }
+
+    #[tokio::test]
+    async fn ws_overlay_only_connection_holds_overlay_and_pending() {
+        let conn = CallConnection::new_overlay_only(identity("ws-peer"));
+        assert!(conn.connection().is_none());
+        assert_eq!(conn.identity().map(|i| i.id.clone()), Some("ws-peer".to_string()));
+        assert!(conn.pending().lock().is_empty());
+
+        let env = conn.overlay_env();
+        assert!(!env.contains("worker/exec"));
+        conn.register_imported(HandlerRegistration::new(
+            external_spec("worker/exec"),
+            make_handler(|input, ctx| async move { ResponseEnvelope::ok(ctx.request_id, input) }),
+            OperationProvenance::FromCall,
+            None,
+            None,
+            Capabilities::new(),
+        ));
+        assert!(env.contains("worker/exec"));
+    }
+
+    #[tokio::test]
+    async fn ws_dispatch_with_auth_token_resolves_identity_via_provider() {
+        let registry = echo_registry();
+        let provider: Arc<dyn IdentityProvider> = Arc::new(
+            StaticIdentityProvider::new().with_token("ws-token", identity("resolved-peer")),
+        );
+        let dispatcher = Dispatcher::new(registry, provider);
+        let conn = Arc::new(CallConnection::new_overlay_only(identity("ws-peer")));
+
+        let payload = serde_json::json!({
+            "operationId": "/echo/run",
+            "input": {},
+            "auth_token": "ws-token",
+        });
+        let response = dispatcher
+            .dispatch_requested(&conn, "ws-auth-1".to_string(), payload)
+            .await;
+        assert!(response.result.is_ok());
+    }
+
+    #[test]
+    fn ws_abort_policy_default_is_abort_dependents() {
+        assert_eq!(AbortPolicy::default(), AbortPolicy::AbortDependents);
+    }
+}