diff --git a/apps/ai-game-creator-shell/src/view/project-development/export/state/useTaonierTab.ts b/apps/ai-game-creator-shell/src/view/project-development/export/state/useTaonierTab.ts
index ee256d00b..35b2ec831 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/export/state/useTaonierTab.ts
+++ b/apps/ai-game-creator-shell/src/view/project-development/export/state/useTaonierTab.ts
@@ -139,6 +139,8 @@ export function useTaonierTab({
     projectPath,
     refreshManifest: refresh,
   });
+  // 同 `useXiaohongshuTab`：这段派生与那边目前几乎逐字相同，但有意不抽公共 helper——两个 tab
+  // 以后可能各自订阅不同的会话 / 线程，形状会分叉，等真分叉了再抽。
   const turns = useMemo(
     () =>
       buildDirectChatTurns({
diff --git a/apps/ai-game-creator-shell/src/view/project-development/export/state/useXiaohongshuTab.ts b/apps/ai-game-creator-shell/src/view/project-development/export/state/useXiaohongshuTab.ts
index b54b43fe6..04c0856bf 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/export/state/useXiaohongshuTab.ts
+++ b/apps/ai-game-creator-shell/src/view/project-development/export/state/useXiaohongshuTab.ts
@@ -65,6 +65,9 @@ export function useXiaohongshuTab({
     projectPath,
     refreshManifest: refresh,
   });
+  // 这三段派生（turns / turnStatus / activeTurnStartedAt）与 `useTaonierTab` 里的写法目前几乎逐字
+  // 相同。**有意不抽公共 helper**：两个 tab 现在接的是同一条会话，但以后很可能各自订阅不同的会话 /
+  // 线程，届时入参就会分叉。等它们真的分叉时再按各自需要抽，比现在先猜一个公共形状更便宜。
   const turns = useMemo(
     () =>
       buildDirectChatTurns({