diff --git a/apps/ai-game-creator-shell/src/App.tsx b/apps/ai-game-creator-shell/src/App.tsx
index caf994182..f319ee651 100644
--- a/apps/ai-game-creator-shell/src/App.tsx
+++ b/apps/ai-game-creator-shell/src/App.tsx
@@ -167,7 +167,6 @@ type AppProps = {
   initialProjectManifest?: GameCreationAppManifest;
   initialProjectKind?: LocalProjectKind;
   planningStartMode?: boolean;
-  activeVersionId?: ProjectChatComponentProps['activeVersionId'];
   initialPlanningPrompt?: string;
   initialPlanningPromptClaimScope?: string;
   initialCreationType?: HomeCreationType | null;
diff --git a/apps/ai-game-creator-shell/src/features/app-shell/WorkspaceLauncher.tsx b/apps/ai-game-creator-shell/src/features/app-shell/WorkspaceLauncher.tsx
index d9c3e4a62..e39abd128 100644
--- a/apps/ai-game-creator-shell/src/features/app-shell/WorkspaceLauncher.tsx
+++ b/apps/ai-game-creator-shell/src/features/app-shell/WorkspaceLauncher.tsx
@@ -856,7 +856,6 @@ export function WorkspaceLauncherShell({
                   initialPlanningPromptClaimScope={
                     switchedToGameRuntime ? 'approved-design-build' : ''
                   }
-                  activeVersionId={activeVersionId}
                   planningStartMode={planningStartMode}
                   playRequest={playRequest}
                   onPlayRequestHandled={handlePlayRequestHandled}
diff --git a/apps/ai-game-creator-shell/src/features/app-shell/model.ts b/apps/ai-game-creator-shell/src/features/app-shell/model.ts
index ff0a5acda..90a0594f2 100644
--- a/apps/ai-game-creator-shell/src/features/app-shell/model.ts
+++ b/apps/ai-game-creator-shell/src/features/app-shell/model.ts
@@ -48,11 +48,6 @@ export type ProjectChatComponentProps = {
     importing: boolean,
   ) => void;
   planningStartMode?: boolean;
-  /**
-   * C7 当前游戏版本：由工作台壳持有，策划聊天里的 `@` 面板按它切「当前版本素材」。
-   * `null` 表示回退到 manifest 中最新的版本。
-   */
-  activeVersionId?: string | null;
   playRequest?: {
     projectPath: string;
     requestId: number;
diff --git a/apps/ai-game-creator-shell/src/styles.css b/apps/ai-game-creator-shell/src/styles.css
index d0e0a1197..947e0b37d 100644
--- a/apps/ai-game-creator-shell/src/styles.css
+++ b/apps/ai-game-creator-shell/src/styles.css
@@ -11203,9 +11203,9 @@ button.design-workspace-tree__entry:hover,
   margin-top: 0;
 }
 
-/* direct-codex 里 `ResourceReferenceInput` 收到的是 `showTriggerButton={!directCodex}`，
-   即输入框内的 `.resource-reference-input-at` 根本不会渲染（`@` 触发钮是下面控制排里的
-   `.project-chat-reference-trigger`）。这里原本有一条针对它的
+/* direct-codex 的 `@` 触发钮是下面控制排里的 `.project-chat-reference-trigger`，
+   不是输入区操作排里的 `.resource-reference-input-at`（宿主不注入
+   `ResourceReferencePickerAction`，改用控制排那个按钮）。这里原本有一条针对它的
    `position: static !important` / 30px 主色方块规则，永远匹配不到，已删除；
    要改 direct-codex 的 `@` 触发钮外观请改 `.project-chat-reference-trigger`。 */