diff --git a/apps/hub/src/index.ts b/apps/hub/src/index.ts
index 40540c07..1c27b2cd 100644
--- a/apps/hub/src/index.ts
+++ b/apps/hub/src/index.ts
@@ -1364,6 +1364,25 @@ export async function createHub(config: HubConfig) {
     chatOrchestratorDeps.memory = memoryHandle.memory;
   }
   const chatOrchestrator = createChatOrchestrator(chatOrchestratorDeps);
+  // CL-6644: a loud, unconditional boot confirmation that message intake
+  // is actually wired — a composition-root mistake here (an import
+  // dropped, a construction reordered, an argument omitted) type-checks
+  // fine but produces a hub that accepts messages into a void: no
+  // dispatch, no error, no notice, just a message that persists and is
+  // never asked of anyone. This can't detect every such mistake (the
+  // pieces below are non-optional local bindings, not feature-flagged),
+  // but it turns "intake is wired" from an assumption nothing checks
+  // into a line every boot log carries — the next investigation starts
+  // by grepping for this instead of re-deriving the whole call chain.
+  getLogger(["hub", "chat-intake"]).info(
+    "Chat message intake wired: turnQueue={hasTurnQueue} " +
+      "chatOrchestrator={hasOrchestrator} chatPlatform={hasPlatform}",
+    {
+      hasTurnQueue: turnQueue !== undefined,
+      hasOrchestrator: chatOrchestrator !== undefined,
+      hasPlatform: chatPlatform !== undefined,
+    },
+  );
   // A room participant that died with its sidecar is otherwise silently
   // dead until somebody writes into it, and the turn the crash
   // interrupted never surfaces at all — the run that died never sends
diff --git a/packages/chat/src/workbench-service.ts b/packages/chat/src/workbench-service.ts
index a26a4205..2644f0bb 100644
--- a/packages/chat/src/workbench-service.ts
+++ b/packages/chat/src/workbench-service.ts
@@ -1138,6 +1138,25 @@ async function routeToRecipients(
     if (host !== undefined) recipientSet.add(host.address);
   }
   const recipients = [...recipientSet];
+  // CL-6644: unconditional, not gated on failure — the silent gap this
+  // investigation found is that nothing at all logs between "message
+  // persisted" and either a dispatch failure or a successful reply,
+  // so a turn that resolves zero recipients (a workbench with no host
+  // participant, a stale settings row) or one that stalls before ever
+  // reaching `dispatchTurnBatch`'s own error handling looks identical
+  // to total silence in the logs. This line exists so the next person
+  // chasing an "agent never replied" report can tell, from logs alone,
+  // whether routing ever ran and what it resolved to.
+  fanoutLog.info(
+    "Routed workbench {workbenchId}'s message {messageId} to {count} " +
+      "recipient(s): {recipients}",
+    {
+      workbenchId: input.workbenchId,
+      messageId,
+      count: recipients.length,
+      recipients,
+    },
+  );
 
   const contextText =
     !isDefaultRouting && recipients.length > 0
@@ -1202,6 +1221,17 @@ async function dispatchTurnBatch(
   if (last === undefined) return;
   const messageIds = batch.map((turn) => turn.messageId);
 
+  // CL-6644: unconditional entry marker — see the matching note on the
+  // caller's own recipient-resolution log. This is the one line that
+  // proves execution reached turn dispatch at all; its absence for a
+  // message known to have persisted narrows a future "no reply"
+  // report to upstream of here without needing a live repro first.
+  fanoutLog.info(
+    "Dispatching workbench {workbenchId}'s turn for message(s) " +
+      "{messageIds} to {count} recipient(s): {recipients}",
+    { workbenchId, messageIds, count: recipients.length, recipients },
+  );
+
   // Concurrent: agents are independent, and a dispatch that has to wake
   // its target pays a full redeploy — serially, one slept agent would
   // delay every agent mentioned after it.