fix(review-followup-fea): clarify Stop with queued input

1 files changed, 10 insertions, 0 deletions

diff --git a/src/features/surface-host/logic/message-queue.ts b/src/features/surface-host/logic/message-queue.ts
index 7a3653e..a49d4d0 100644
--- a/src/features/surface-host/logic/message-queue.ts
+++ b/src/features/surface-host/logic/message-queue.ts
@@ -1,3 +1,4 @@
+import type { SurfaceSpec } from "@dispatch/ui-contract";
 import type { QueuedMessage } from "@dispatch/wire";
 
 /**
@@ -41,6 +42,15 @@ export function parseMessageQueuePayload(payload: unknown): MessageQueueData | n
   return { messages };
 }
 
+/** Queue size from a validated snapshot; absent/malformed data stays unknown. */
+export function messageQueueCount(spec: SurfaceSpec | null): number | undefined {
+  const field = spec?.fields.find(
+    (field) => field.kind === "custom" && field.rendererId === MESSAGE_QUEUE_RENDERER_ID,
+  );
+  if (field?.kind !== "custom") return undefined;
+  return parseMessageQueuePayload(field.payload)?.messages.length;
+}
+
 /** The `rendererId` the message-queue extension's `custom` surface field uses. */
 export const MESSAGE_QUEUE_RENDERER_ID = "message-queue";