diff --git a/apps/ai-game-creator-shell/src/services/clientAuth.ts b/apps/ai-game-creator-shell/src/services/clientAuth.ts
index 4ab11e049..3d67bd967 100644
--- a/apps/ai-game-creator-shell/src/services/clientAuth.ts
+++ b/apps/ai-game-creator-shell/src/services/clientAuth.ts
@@ -177,5 +177,5 @@ export function subscribeClientAuthState(
       }
       listener({ status: 'unauthenticated' });
     },
-  ).catch(() => () => {});
+  );
 }
diff --git a/apps/ai-game-creator-shell/src/services/platformSession.ts b/apps/ai-game-creator-shell/src/services/platformSession.ts
index 4e8886b51..7f42bc45f 100644
--- a/apps/ai-game-creator-shell/src/services/platformSession.ts
+++ b/apps/ai-game-creator-shell/src/services/platformSession.ts
@@ -187,6 +187,9 @@ void subscribeClientAuthState((state) => {
     return;
   }
   adoptIdentity(null, null);
+}).catch((error) => {
+  adoptIdentity(null, null);
+  console.warn('[AGC] 认证状态订阅失败，已清除当前身份投影', error);
 });
 
 /** 仅供测试隔离模块级计数。 */
diff --git a/docs/project-memory/plans/【里程碑】AGC错误具体文本展示-2026-10-04.md b/docs/project-memory/plans/【里程碑】AGC错误具体文本展示-2026-10-04.md
index 498866f4f..9a13ecbd2 100644
--- a/docs/project-memory/plans/【里程碑】AGC错误具体文本展示-2026-10-04.md
+++ b/docs/project-memory/plans/【里程碑】AGC错误具体文本展示-2026-10-04.md
@@ -96,3 +96,4 @@ DirectProject 回合失败在确认不是客户端内部不可归类故障时，
 - 受控 command 执行路径仍会把 leader 启动身份读取、进程组终止、root kill、Job/wait 失败折叠为“身份未确认/退出未确认”；现拒绝无身份接管并保留身份读取、终止兜底、等待和 OS 错误正文。
 - 继续扫到本地资源导入、平台素材 data URL、External Editor binding origin、项目模型记录读取/JSON 解析等错误仍丢底层正文；现区分真实 NotFound 与权限/元数据失败，并保留 base64、URL、文件读取和 JSON 解析细节。
 - 资源编辑上游 4xx 正文的流读取失败、正文超限、非 UTF-8 和未知 JSON 形状原先都会回落到笼统失败；现保留读取阶段、大小上限、编码错误和有界脱敏原文。
+- 认证状态订阅底层原先先把 IPC 失败转成空注销函数，导致上层新增的错误提示也收不到；现让订阅拒绝向登录页传播，后台身份投影失败时清除身份并留痕。