diff --git a/apps/ai-game-creator-shell/scripts/vite-watch.test.mjs b/apps/ai-game-creator-shell/scripts/vite-watch.test.mjs
new file mode 100644
index 000000000..42fa9a5d4
--- /dev/null
+++ b/apps/ai-game-creator-shell/scripts/vite-watch.test.mjs
@@ -0,0 +1,113 @@
+import assert from 'node:assert/strict';
+import { mkdir, mkdtemp, rm, writeFile } from 'node:fs/promises';
+import { tmpdir } from 'node:os';
+import { dirname, join } from 'node:path';
+import { test } from 'node:test';
+import { setTimeout as delay } from 'node:timers/promises';
+import { fileURLToPath } from 'node:url';
+
+import { createServer, loadConfigFromFile, normalizePath } from 'vite';
+
+test(
+  'AGC 排除 Rust 构建目录且保留源码与共享组件监听',
+  { timeout: 30_000 },
+  async () => {
+    const loaded = await loadConfigFromFile(
+      { command: 'serve', mode: 'development' },
+      fileURLToPath(new URL('../vite.config.ts', import.meta.url)),
+    );
+    assert.ok(loaded);
+    assert.notEqual(loaded.config.server?.watch, null);
+    assert.notEqual(loaded.config.server?.hmr, false);
+    assert.ok(
+      [loaded.config.server?.watch?.ignored]
+        .flat()
+        .includes('**/src-tauri/target/**'),
+    );
+
+    const fixture = await mkdtemp(join(tmpdir(), 'agc-vite-watch-'));
+    const root = join(fixture, 'apps', 'ai-game-creator-shell');
+    const source = join(root, 'src', 'main.js');
+    const css = join(root, 'src', 'styles.css');
+    const shared = join(fixture, 'packages', 'shared', 'src', 'component.js');
+    const target = join(root, 'src-tauri', 'target');
+    const artifact = join(target, 'debug', 'incremental', 'cache.bin');
+    let server;
+    try {
+      for (const file of [source, css, shared, artifact]) {
+        await mkdir(dirname(file), { recursive: true });
+        await writeFile(
+          file,
+          file === css ? 'body { color: red; }' : 'export default 1;',
+        );
+      }
+      // 使用真实 Vite watcher 和实际配置，仅将扫描根替换为小型夹具；
+      // 不加载业务插件、后端或原生窗口，也不扫描开发机上的大型 target。
+      server = await createServer({
+        configFile: false,
+        envFile: false,
+        root,
+        logLevel: 'silent',
+        server: {
+          watch: loaded.config.server?.watch,
+          middlewareMode: true,
+          hmr: false,
+          fs: { allow: [fixture] },
+        },
+        optimizeDeps: { noDiscovery: true, include: [] },
+      });
+      const waitForWatchedFile = async (file) => {
+        const normalized = normalizePath(file);
+        for (let attempt = 0; attempt < 100; attempt += 1) {
+          if (
+            Object.entries(server.watcher.getWatched()).some(
+              ([directory, names]) =>
+                names.some(
+                  (name) => normalizePath(join(directory, name)) === normalized,
+                ),
+            )
+          )
+            return;
+          await delay(50);
+        }
+        assert.fail(`源码必须仍被监听：${normalized}`);
+      };
+      await waitForWatchedFile(source);
+
+      // 真实模块转换应将 root 外的共享源码加入监听。
+      await server.transformRequest(`/@fs/${normalizePath(shared)}`);
+      for (const file of [source, css, shared]) {
+        const normalized = normalizePath(file);
+        await waitForWatchedFile(file);
+        const changed = new Promise((resolve, reject) => {
+          const timer = setTimeout(() => {
+            server.watcher.off('change', onChange);
+            reject(new Error(`未收到源码变更：${normalized}`));
+          }, 5_000);
+          function onChange(path) {
+            if (normalizePath(path) !== normalized) return;
+            clearTimeout(timer);
+            server.watcher.off('change', onChange);
+            resolve();
+          }
+          server.watcher.on('change', onChange);
+        });
+        await writeFile(
+          file,
+          file === css ? 'body { color: blue; }' : 'export default 2;',
+        );
+        await changed;
+      }
+      const targetPath = normalizePath(target);
+      const targetDirectories = Object.keys(server.watcher.getWatched())
+        .map(normalizePath)
+        .filter(
+          (path) => path === targetPath || path.startsWith(`${targetPath}/`),
+        );
+      assert.deepEqual(targetDirectories, [], 'Rust target 不应创建目录监听器');
+    } finally {
+      await server?.close();
+      await rm(fixture, { recursive: true, force: true });
+    }
+  },
+);
diff --git a/apps/ai-game-creator-shell/vite.config.ts b/apps/ai-game-creator-shell/vite.config.ts
index 6e68153ba..fa2246ed0 100644
--- a/apps/ai-game-creator-shell/vite.config.ts
+++ b/apps/ai-game-creator-shell/vite.config.ts
@@ -154,6 +154,9 @@ export default defineConfig({
     host: '127.0.0.1',
     port: 3080,
     strictPort: true,
+    watch: {
+      ignored: ['**/src-tauri/target/**'],
+    },
     fs: {
       allow: [repoRoot],
     },
diff --git a/docs/project-memory/shared-memory/pitfalls.md b/docs/project-memory/shared-memory/pitfalls.md
index e8d132d9f..99b49877b 100644
--- a/docs/project-memory/shared-memory/pitfalls.md
+++ b/docs/project-memory/shared-memory/pitfalls.md
@@ -1,5 +1,9 @@
 # 踩坑与排障记录
 
+## AGC Windows 开发态首次页面加载缓慢
+
+Vite 默认监听应用根下的 Rust `src-tauri/target`，构建产物较多时会创建大量 Windows 文件监听器。AGC 配置通过 `server.watch.ignored: ['**/src-tauri/target/**']` 排除此目录，不关闭业务源码、CSS、共享组件监听或 HMR。排查时区分后端就绪、Vite 扫描和原生窗口首绘；监听目录回归不能代替实机首绘测量，验证入口见本地开发运维文档。
+
 ## Windows 已登记生图资产未刷新
 
 Direct 工具桥会 canonicalize 项目根，事件中的路径可能带 `\\?\` / `\\?\UNC\`，而前端项目路径仍是普通盘符或 UNC。失效监听不能直接比较原始字符串；识别为同一项目后，用当前项目路径重读 manifest，保留项目切换与 revision 门禁。普通 `agc_generate_image` 成功提交也必须发出失效通知，不能依赖整轮 Agent 结束。回归需覆盖两种 Windows 前缀、其它项目事件拒收，以及 Agent 尚未结束和后续失败时已登记图片卡片仍可见。
diff --git a/docs/【开发运维】本地开发验证与生产运维-2026-05-15.md b/docs/【开发运维】本地开发验证与生产运维-2026-05-15.md
index e036f5205..181ca4bfc 100644
--- a/docs/【开发运维】本地开发验证与生产运维-2026-05-15.md
+++ b/docs/【开发运维】本地开发验证与生产运维-2026-05-15.md
@@ -20,6 +20,8 @@ Stdb 发布以 root 准备文件、再切换 `spacetimedb` 用户执行时，WAS
 
 ## 本地启动
 
+AGC Vite 的 `server.watch.ignored` 排除 `**/src-tauri/target/**`，避免递归监听 Rust 构建产物、在 Windows 上创建大量文件监听器并拖慢首次页面加载。保留业务源码、CSS 与仓库共享组件的监听及热更新；不通过关闭 watcher 或 HMR 规避问题。监听回归使用 `node --test apps/ai-game-creator-shell/scripts/vite-watch.test.mjs`，验证构建目录被排除、应用源码及根目录外的共享源码仍能触发变更；原生窗口首绘耗时另行实测，不把监听测试耗时当作启动性能指标。
+
 AGC `backend` 模式与 `all` / `api-server` 一样，必须同时探测 API 和 BgFilter worker 端口，漂移后的 worker 地址同时传给 API、worker 和 readiness 检查。不能因为旧 worker 的 `/readyz` 可访问，就把新启动失败的同端口 worker 视为就绪；AGC 前端会等待完整配套后端，worker 失败可能最终表现为 Tauri 等待前端 180 秒超时。
 
 `npm run agc` 外层启动器先执行 `agc:serve` 并等待前端与配套后端就绪，再启动 Tauri，同时清空本次 CLI 的 `beforeDevCommand`，避免重复拉起服务和把数据库发布时间计入 Tauri 的 180 秒前端等待。准备阶段最多等待 660 秒（后端门禁仍为 600 秒），退出时清理本次启动的服务树，不停止复用的服务。AGC 自动发布显式使用 `--preserve-database`，schema 冲突须人工确认迁移，不自动清空数据。