diff --git a/apps/ai-game-creator-shell/src/view/project-development/chat/components/DirectProjectChatHeader/DirectProjectChatHeader.tsx b/apps/ai-game-creator-shell/src/view/project-development/chat/components/DirectProjectChatHeader/DirectProjectChatHeader.tsx
index ccf19df43..6d05f6f64 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/chat/components/DirectProjectChatHeader/DirectProjectChatHeader.tsx
+++ b/apps/ai-game-creator-shell/src/view/project-development/chat/components/DirectProjectChatHeader/DirectProjectChatHeader.tsx
@@ -5,6 +5,9 @@ import { Package, Settings } from 'lucide-react';
  *
  * 状态文案由容器决定（忙态优先），这里只负责渲染；DirectProject 不再把工作台壳的
  * 全局状态文案搬进来。发布入口归导出产物面板的陶泥儿 tab，不在聊天头。
+ *
+ * 导出入口在回合在途（`busy`）时禁用：导出会读写项目文件，和 DirectProject 回合的写入并发
+ * 会互相踩；设置入口不受影响。
  */
 export function DirectProjectChatHeader({
   busy,
@@ -34,6 +37,7 @@ export function DirectProjectChatHeader({
             className="project-chat-publish-trigger"
             aria-label="导出产物"
             title="导出产物"
+            disabled={busy}
             onClick={onRequestExport}
           >
             <Package size={16} aria-hidden="true" />