diff --git a/src/features/chat/app-server/inbound/notification-plan.ts b/src/features/chat/app-server/inbound/notification-plan.ts
index 422bf22f..d36b9627 100644
--- a/src/features/chat/app-server/inbound/notification-plan.ts
+++ b/src/features/chat/app-server/inbound/notification-plan.ts
@@ -214,13 +214,17 @@ const STREAM_UPDATE_PLANNERS = {
 } satisfies ServerNotificationStatePlannerMap<StreamUpdateNotificationMethod>;
 
 const TURN_LIFECYCLE_PLANNERS = {
-  "turn/started": (state, notification) =>
-    actionPlan({
-      type: "turn/started",
-      threadId: notification.params.threadId,
-      turnId: notification.params.turn.id,
-      items: messageStreamItemsWithPendingPromptSubmitHooks(state, notification.params.turn.id),
-    }),
+  "turn/started": (state, notification) => ({
+    actions: [
+      {
+        type: "turn/started",
+        threadId: notification.params.threadId,
+        turnId: notification.params.turn.id,
+        items: messageStreamItemsWithPendingPromptSubmitHooks(state, notification.params.turn.id),
+      },
+    ],
+    effects: [{ type: "refresh-threads" }],
+  }),
   "turn/completed": (state, notification) => {
     if (activeTurnId(state) !== notification.params.turn.id) return EMPTY_PLAN;
     return {
diff --git a/tests/features/chat/protocol/inbound/handler.test.ts b/tests/features/chat/protocol/inbound/handler.test.ts
index eb67f57d..e780cbe6 100644
--- a/tests/features/chat/protocol/inbound/handler.test.ts
+++ b/tests/features/chat/protocol/inbound/handler.test.ts
@@ -466,7 +466,8 @@ describe("ChatInboundHandler", () => {
           status: "completed",
         },
       ]);
-      const handler = handlerForState(state);
+      const refreshActiveThreads = vi.fn();
+      const handler = handlerForState(state, { refreshActiveThreads });
 
       handler.handleNotification({
         method: "turn/started",
@@ -488,6 +489,7 @@ describe("ChatInboundHandler", () => {
       expect(chatStateMessageStreamItems(handler.currentState()).map((item) => item.id)).toEqual(["local-user-1", "hook-hook-1-1"]);
       expect(chatStateMessageStreamItems(handler.currentState())[1]).toMatchObject({ id: "hook-hook-1-1", turnId: "turn-active" });
       expect(pendingTurnStart(handler.currentState())).toBeNull();
+      expect(refreshActiveThreads).toHaveBeenCalledOnce();
     });
 
     it("moves pre-turn hook runs after the optimistic user message when a turn id is assigned", () => {