diff --git a/apps/ai-game-creator-shell/src-tauri/resources/agc-skills/manifest.json b/apps/ai-game-creator-shell/src-tauri/resources/agc-skills/manifest.json
index 392096126..8d329e435 100644
--- a/apps/ai-game-creator-shell/src-tauri/resources/agc-skills/manifest.json
+++ b/apps/ai-game-creator-shell/src-tauri/resources/agc-skills/manifest.json
@@ -1,6 +1,6 @@
 {
   "schemaVersion": "agc-skill-pack.v1",
-  "version": "2026-08-26.66",
+  "version": "2026-08-26.67",
   "skills": [
     {
       "name": "agc-unity-editor",
@@ -204,7 +204,7 @@
         "scripts/validate.mjs",
         "scripts/vite.config.xhs-minitool.mjs"
       ],
-      "sha256": "8a096ba5ac398ee45276e47d955691f834ecb0af8facadb43d52186f90458313"
+      "sha256": "ad9b5a6dc1b71e0413a1a71780c60d17076d13fbf67517a939c57565e6d0a477"
     }
   ]
 }
diff --git a/apps/ai-game-creator-shell/src-tauri/resources/agc-skills/vite-export-xhs-minitool/scripts/.pack.test.mjs b/apps/ai-game-creator-shell/src-tauri/resources/agc-skills/vite-export-xhs-minitool/scripts/.pack.test.mjs
index 8ed0e67f7..2804d7bb4 100644
--- a/apps/ai-game-creator-shell/src-tauri/resources/agc-skills/vite-export-xhs-minitool/scripts/.pack.test.mjs
+++ b/apps/ai-game-creator-shell/src-tauri/resources/agc-skills/vite-export-xhs-minitool/scripts/.pack.test.mjs
@@ -69,6 +69,31 @@ test('存在不支持文件时打包整体失败，且不删除任何文件', ()
   assert.equal(existsSync(join(BASE, 'no-delete-out')), false, '失败时不应写出 zip');
 });
 
+test('makeZip 的校验也发生在落盘前，失败时不留 zip', () => {
+  // 缺 index.html：文件扩展名都合法，预检会放行，失败点在 makeZip。
+  const noIndex = writeBuiltDir('no-index');
+  rmSync(join(noIndex, 'index.html'));
+  const noIndexOut = join(BASE, 'no-index-out', 'xhs-minitool.zip');
+  assert.throws(
+    () => packMinitool({ cwd: BASE, viteBuiltDir: 'no-index', zipOut: noIndexOut }),
+    /缺少 index\.html/,
+  );
+  assert.equal(existsSync(noIndexOut), false, '缺 index.html 时不应写出 zip');
+
+  // 含禁止条目：vite.config.js 扩展名在白名单里，但命中 FORBIDDEN_ENTRY。
+  writeBuiltDir('forbidden-entry', { 'vite.config.js': 'export default {};\n' });
+  const forbiddenOut = join(BASE, 'forbidden-entry-out', 'xhs-minitool.zip');
+  assert.throws(
+    () => packMinitool({
+      cwd: BASE,
+      viteBuiltDir: 'forbidden-entry',
+      zipOut: forbiddenOut,
+    }),
+    /禁止文件/,
+  );
+  assert.equal(existsSync(forbiddenOut), false, '含禁止条目时不应写出 zip');
+});
+
 test('干净产物目录仍能正常打包', () => {
   writeBuiltDir('clean');
   const zipOut = join(BASE, 'clean-out', 'xhs-minitool.zip');
diff --git a/apps/ai-game-creator-shell/src-tauri/resources/agc-skills/vite-export-xhs-minitool/scripts/pack.mjs b/apps/ai-game-creator-shell/src-tauri/resources/agc-skills/vite-export-xhs-minitool/scripts/pack.mjs
index 98ebd432a..9d69fd6e8 100644
--- a/apps/ai-game-creator-shell/src-tauri/resources/agc-skills/vite-export-xhs-minitool/scripts/pack.mjs
+++ b/apps/ai-game-creator-shell/src-tauri/resources/agc-skills/vite-export-xhs-minitool/scripts/pack.mjs
@@ -150,8 +150,8 @@ function collectZipEntries(rootDir) {
   return entries;
 }
 
-export function writeZip(rootDir, zipPath) {
-  const entries = collectZipEntries(rootDir);
+/** 把已收集的条目编码成完整 zip 字节。只算内存，不落盘——校验没过时磁盘上不能留半成品。 */
+function encodeZip(entries) {
   const now = new Date();
   const dosTime =
     ((now.getHours() << 11) | (now.getMinutes() << 5) | (now.getSeconds() >> 1)) & 0xffff;
@@ -235,8 +235,15 @@ export function writeZip(rootDir, zipPath) {
   eocd.writeUInt32LE(localBuf.length, 16);
   eocd.writeUInt16LE(0, 20);
 
+  return Buffer.concat([localBuf, centralBuf, eocd]);
+}
+
+/** 落盘版：写 zip 并返回条目名列表（保持既有导出名，供只想要 zip 的调用方使用）。 */
+export function writeZip(rootDir, zipPath) {
+  const entries = collectZipEntries(rootDir);
+  const buffer = encodeZip(entries);
   rmSync(zipPath, { force: true });
-  writeFileSync(zipPath, Buffer.concat([localBuf, centralBuf, eocd]));
+  writeFileSync(zipPath, buffer);
   return entries.map((entry) => entry.name);
 }
 
@@ -258,20 +265,27 @@ export function auditZipFile(file, size) {
 }
 
 function makeZip(viteBuiltDir, zipPath) {
-  const entries = writeZip(viteBuiltDir, zipPath);
-  if (!entries.includes('index.html')) {
+  // 先把条目和字节都算完、校验通过，最后才落盘：中途失败时预期输出路径上不能留一份半成品，
+  // 更不能让宿主把半成品当成本次构建的产物。
+  const entries = collectZipEntries(viteBuiltDir);
+  const names = entries.map((entry) => entry.name);
+  if (!names.includes('index.html')) {
     throw new Error('zip 根目录缺少 index.html（可能多套了一层目录）');
   }
-  const bad = entries.find((entry) => FORBIDDEN_ENTRY.test(entry));
+  const bad = names.find((entry) => FORBIDDEN_ENTRY.test(entry));
   if (bad) {
     throw new Error(`zip 内含禁止文件：${bad}`);
   }
-  const size = statSync(zipPath).size;
-  for (const item of auditZipFile(zipPath, size)) {
+  const buffer = encodeZip(entries);
+  for (const item of auditZipFile(zipPath, buffer.length)) {
     if (item.severity === 'ERROR') throw new Error(item.message);
     console.warn(`[warn] ${item.message}`);
   }
-  console.log(`zip 已生成：${zipPath}（${entries.length} 个条目，${(size / MIB).toFixed(2)} MiB）`);
+  rmSync(zipPath, { force: true });
+  writeFileSync(zipPath, buffer);
+  console.log(
+    `zip 已生成：${zipPath}（${entries.length} 个条目，${(buffer.length / MIB).toFixed(2)} MiB）`,
+  );
 }
 
 /**