diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/thread_manager/mod.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/thread_manager/mod.rs
index 6d61660be..14f43e3e4 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/thread_manager/mod.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/thread_manager/mod.rs
@@ -1006,11 +1006,16 @@ fn notify_subscribers(thread_id: &str) {
     };
     if let Some(app) = THREAD_MANAGER_APP_HANDLE.get() {
         for subscription_id in subscriber_ids {
-            let _ = tauri::Emitter::emit(
+            if let Err(error) = tauri::Emitter::emit(
                 app,
                 THREAD_NOTIFY_EVENT,
                 serde_json::json!({ "subscriptionId": subscription_id }),
-            );
+            ) {
+                app_log!(
+                    "agent.thread_manager.notify.emit_failed subscriptionId={} detail={error}",
+                    subscription_id
+                );
+            }
         }
     }
 }
diff --git a/apps/ai-game-creator-shell/src-tauri/src/asset_generation_tasks.rs b/apps/ai-game-creator-shell/src-tauri/src/asset_generation_tasks.rs
index faec7fda0..329fdd10c 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/asset_generation_tasks.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/asset_generation_tasks.rs
@@ -63,14 +63,19 @@ fn emit_asset_generation_task_changed(root: &Path, task_id: &str) {
     let Some(app) = ASSET_GENERATION_TASK_APP_HANDLE.get() else {
         return;
     };
-    let _ = tauri::Emitter::emit(
+    if let Err(error) = tauri::Emitter::emit(
         app,
         ASSET_GENERATION_TASK_CHANGED_EVENT,
         serde_json::json!({
             "projectPath": root.to_string_lossy(),
             "taskId": task_id,
         }),
-    );
+    ) {
+        app_log!(
+            "asset_generation_task.emit_failed taskId={} detail={error}",
+            task_id
+        );
+    }
 }
 
 const ASSET_GENERATION_TASK_PHASE_QUEUED: &str = "排队中。";
diff --git a/apps/ai-game-creator-shell/src-tauri/src/platform_maintenance.rs b/apps/ai-game-creator-shell/src-tauri/src/platform_maintenance.rs
index 8135d41d7..c0ddf7ff1 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/platform_maintenance.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/platform_maintenance.rs
@@ -39,11 +39,16 @@ pub(crate) fn emit_platform_maintenance_notice(status: u16) {
     let Some(app) = PLATFORM_MAINTENANCE_APP_HANDLE.get() else {
         return;
     };
-    let _ = tauri::Emitter::emit(
+    if let Err(error) = tauri::Emitter::emit(
         app,
         PLATFORM_MAINTENANCE_EVENT,
         serde_json::json!({ "code": "MAINTENANCE", "status": status }),
-    );
+    ) {
+        app_log!(
+            "platform_maintenance.emit_failed status={} detail={error}",
+            status
+        );
+    }
 }
 
 /// 在平台响应的错误分支上分类维护态：命中就广播一次，未命中什么都不做。
diff --git a/apps/ai-game-creator-shell/src/services/pluginHost.ts b/apps/ai-game-creator-shell/src/services/pluginHost.ts
index 12b7795a0..1684c5e25 100644
--- a/apps/ai-game-creator-shell/src/services/pluginHost.ts
+++ b/apps/ai-game-creator-shell/src/services/pluginHost.ts
@@ -4,6 +4,7 @@ import type {
   AgcPluginPanel,
   AgcPluginSummary,
 } from '../app/types';
+import { appendWebviewLog, visibleClientErrorMessage } from './errorReporting';
 
 export const AGC_PLUGIN_STATE_CHANGED_EVENT =
   'game-creator-plugin-state-changed';
@@ -115,7 +116,12 @@ export async function setAgcPluginProjectPath(projectPath: string | null) {
   const invoke = invokeOrThrow();
   // 项目 effect 的 cleanup(null) 与下个项目的设置必须按提交顺序抵达宿主。
   const next = pluginProjectUpdate
-    .catch(() => undefined)
+    .catch((error) => {
+      appendWebviewLog('error', [
+        '[AGC] 上一次编辑器插件项目路径更新失败',
+        visibleClientErrorMessage(error),
+      ]);
+    })
     .then(
       () =>
         invoke('set_agc_plugin_project_path', { projectPath }) as Promise<void>,
diff --git a/docs/project-memory/shared-memory/pitfalls.md b/docs/project-memory/shared-memory/pitfalls.md
index a270964e7..6906d9b0a 100644
--- a/docs/project-memory/shared-memory/pitfalls.md
+++ b/docs/project-memory/shared-memory/pitfalls.md
@@ -32,6 +32,8 @@ Direct 的 Tauri 进度、活动回合和 manifest 事件不能忽略 `app.emit`
 
 插件项目路径清理和本地权限审计属于旁路，但失败仍要写 WebView 诊断；旁路不阻断业务不等于可以静默丢失 IPC/I/O 事实。
 
+资源生成任务变更、平台维护通知和 Thread Manager 对话通知也是用户状态事实；这些事件的 `emit` 失败会直接造成任务/维护弹窗/聊天停在旧状态，必须记录投递错误。
+
 窗口标题栏的最大化状态读取、resize 订阅、最小化、最大化和关闭失败也要保留 WebView 诊断，不能用空 catch 让原生窗口 IPC 失败无迹可寻。
 
 `WindowChrome.test.tsx` 当前没有在用例间清理挂载的 `WindowChrome`，多用例运行会出现重复标题和重复窗口按钮；这属于测试隔离问题，不能把它误判成窗口 IPC 行为回归。