diff --git a/apps/ai-game-creator-shell/tests/appSurface/developer-agent-window.suite.ts b/apps/ai-game-creator-shell/tests/appSurface/developer-agent-window.suite.ts
index e83e4128c..113b8ba39 100644
--- a/apps/ai-game-creator-shell/tests/appSurface/developer-agent-window.suite.ts
+++ b/apps/ai-game-creator-shell/tests/appSurface/developer-agent-window.suite.ts
@@ -2519,6 +2519,11 @@ export function registerDeveloperAgentWindowTests() {
 
     const emptyGoalPanel = await screen.findByLabelText('Agent Goal 状态');
     expect(within(emptyGoalPanel).getByText('尚未开始')).not.toBeNull();
+    // 读取历史的异步链路未结束时按钮处于 disabled，等它可用再切换模式，避免点击落空。
+    const goalModeButton = screen.getByRole('button', { name: '目标' });
+    await waitFor(() => {
+      expect(goalModeButton.hasAttribute('disabled')).toBe(false);
+    });
     selectDeveloperAgentChatMode('goal');
     expect(
       screen.getByRole('button', { name: '目标' }).getAttribute('aria-pressed'),