diff --git a/packages/collab-web/CHANGELOG.md b/packages/collab-web/CHANGELOG.md
index 35bbe08f4..b3a8d34fa 100644
--- a/packages/collab-web/CHANGELOG.md
+++ b/packages/collab-web/CHANGELOG.md
@@ -4,7 +4,7 @@
 
 ### Fixed
 
-- Fixed the guest rendering idle while the host agent is running (spinner vanishing mid-turn after a reconnect dropped `agent_start`): host `state` frames are now authoritative for liveness in both directions, and an idle report clears tool cards pinned by a dropped `tool_execution_end`.
+- Fixed the guest rendering idle while the host agent is running (spinner vanishing mid-turn after a reconnect dropped `agent_start`): host `state` frames are now authoritative for liveness in both directions, and an idle report clears tool cards pinned by a dropped `tool_execution_end` ([#6990](https://github.com/can1357/oh-my-pi/pull/6990) by [@metaphorics](https://github.com/metaphorics)).
 
 ## [17.1.0] - 2026-07-24
 
diff --git a/packages/collab-web/src/lib/client.ts b/packages/collab-web/src/lib/client.ts
index 0ab8e0e30..6295e28a7 100644
--- a/packages/collab-web/src/lib/client.ts
+++ b/packages/collab-web/src/lib/client.ts
@@ -336,9 +336,8 @@ export class GuestClient {
 				this.#state = frame.state;
 				// Host state is authoritative for liveness in both directions: the
 				// payload is built at fire time, so `isStreaming` is never stale.
-				// This is the only path that recovers a stuck-idle guest — a dropped
-				// `agent_start` (most often a mid-stream reconnect) otherwise leaves
-				// `#working` false forever, since nothing else sets it true.
+				// This covers a connected guest that misses the discrete `agent_start`
+				// without receiving a new `welcome` (for example, mid-stream).
 				this.#working = frame.state.isStreaming;
 				if (!frame.state.isStreaming) {
 					// Host idle implies no tool can be running, so clear any card