diff --git a/apps/ai-game-creator-shell/src/view/project-development/export/state/useXhsMinitoolExport.ts b/apps/ai-game-creator-shell/src/view/project-development/export/state/useXhsMinitoolExport.ts
index f47257810..05938b2bc 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/export/state/useXhsMinitoolExport.ts
+++ b/apps/ai-game-creator-shell/src/view/project-development/export/state/useXhsMinitoolExport.ts
@@ -241,11 +241,12 @@ export function useXhsMinitoolExport({
         throwToErrorPool(String(error), error);
         return null;
       }
-      setFailure(structured);
-      // 宿主侧事实故障：先让面板显示现场，再抛进错误池（策略拒绝等预期拒绝不走这一步）。
       if (structured.type === 'exportUnavailable') {
+        // 宿主侧事实故障：面板不接管（不留失败卡片），直接抛给全局错误池上报；下一次轮询会自然重试。
         throwToErrorPool(JSON.stringify(structured), error);
+        return null;
       }
+      setFailure(structured);
       return null;
     } finally {
       if (isInitialRead) {
@@ -303,12 +304,10 @@ export function useXhsMinitoolExport({
         }
         if (structured.type === 'formInvalid') setFieldError(structured);
         else if (structured.type === 'saveConflict') setConflict(structured);
-        else {
-          setFailure(structured);
-          if (structured.type === 'exportUnavailable') {
-            throwToErrorPool(JSON.stringify(structured), error);
-          }
-        }
+        else if (structured.type === 'exportUnavailable') {
+          // 宿主侧事实故障：不落面板，直接抛给全局错误池上报。
+          throwToErrorPool(JSON.stringify(structured), error);
+        } else setFailure(structured);
         return false;
       }
     },
@@ -367,10 +366,12 @@ export function useXhsMinitoolExport({
         throwToErrorPool(String(error), error);
         return;
       }
-      setFailure(structured);
       if (structured.type === 'exportUnavailable') {
+        // 宿主侧事实故障：不落面板，直接抛给全局错误池上报。
         throwToErrorPool(JSON.stringify(structured), error);
+        return;
       }
+      setFailure(structured);
     }
   }, [projectPath, throwToErrorPool]);
 
diff --git a/apps/ai-game-creator-shell/tests/xhsMinitoolExport.test.tsx b/apps/ai-game-creator-shell/tests/xhsMinitoolExport.test.tsx
index 3876b4a29..56c5315ee 100644
--- a/apps/ai-game-creator-shell/tests/xhsMinitoolExport.test.tsx
+++ b/apps/ai-game-creator-shell/tests/xhsMinitoolExport.test.tsx
@@ -1017,7 +1017,7 @@ describe('状态 hook', () => {
     await expect(result.current.packageAll()).resolves.toBeUndefined();
   });
 
-  it('宿主侧事实故障先给卡片、再把同一个故障抛一次', async () => {
+  it('宿主侧事实故障原样抛出进错误池，面板不留卡片', async () => {
     const invoke = vi.fn(async (command: string) => {
       if (command === 'read_xhs_minitool_export') {
         return { form: FORM, hasScript: true };
@@ -1036,18 +1036,16 @@ describe('状态 hook', () => {
     );
     await waitFor(() => expect(result.current.form).toEqual(FORM));
 
-    // 卡片照常给现场，同时原样抛出（真实 WebView 里由全局 handler 结算进错误池）。
+    // 宿主故障交给全局错误池上报，面板不接管：原样抛出，failure 保持为空。
     await act(async () => {
       await expect(result.current.packageAll()).rejects.toBeInstanceOf(Error);
     });
-    // 面板留下的就是宿主那个原始错误，用户那句话是渲染时从变体推的。
-    expect(result.current.failure).toEqual({
-      type: 'exportUnavailable',
-      cause: '项目根不可用：找不到目录',
-    });
+    expect(result.current.failure).toBeNull();
+    // 同一个故障只抛一次（轮询会反复读到它，不能让错误池的 count 变成轮询次数）。
     await act(async () => {
       await expect(result.current.packageAll()).resolves.toBeUndefined();
     });
+    expect(result.current.failure).toBeNull();
   });
 
   it('帮我填：先把没保存的输入落盘，再把改注册表这件事交给同一个会话', async () => {