diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 01baec5..ddcd1b3 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -197,3 +197,14 @@ jobs:
           npm publish ./packages/cli-box-darwin-arm64 --access public
           npm publish ./packages/cli-box-electron-darwin-arm64 --access public
           npm publish ./packages/cli-box-skill --access public
+
+      - name: Commit version changes
+        if: github.event_name == 'release'
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add packages/cli-box-darwin-arm64/package.json \
+                  packages/cli-box-electron-darwin-arm64/package.json \
+                  packages/cli-box-skill/package.json
+          git diff --cached --quiet || git commit -m "chore(npm): bump package versions to ${GITHUB_REF_NAME#v}"
+          git push
diff --git a/packages/cli-box-darwin-arm64/package.json b/packages/cli-box-darwin-arm64/package.json
index c652f0a..1cd453e 100644
--- a/packages/cli-box-darwin-arm64/package.json
+++ b/packages/cli-box-darwin-arm64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cli-box-darwin-arm64",
-  "version": "0.2.1",
+  "version": "0.2.8",
   "description": "cli-box binaries for macOS arm64",
   "os": ["darwin"],
   "cpu": ["arm64"],
diff --git a/packages/cli-box-electron-darwin-arm64/package.json b/packages/cli-box-electron-darwin-arm64/package.json
index 5e5fa69..dc8b265 100644
--- a/packages/cli-box-electron-darwin-arm64/package.json
+++ b/packages/cli-box-electron-darwin-arm64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cli-box-electron-darwin-arm64",
-  "version": "0.2.1",
+  "version": "0.2.8",
   "description": "cli-box Electron app for macOS arm64",
   "os": ["darwin"],
   "cpu": ["arm64"],
diff --git a/packages/cli-box-skill/installer/shared.mjs b/packages/cli-box-skill/installer/shared.mjs
index 824d2e8..e0a764a 100644
--- a/packages/cli-box-skill/installer/shared.mjs
+++ b/packages/cli-box-skill/installer/shared.mjs
@@ -3,6 +3,7 @@
 import fs from "node:fs";
 import os from "node:os";
 import path from "node:path";
+import { execSync } from "node:child_process";
 import { createRequire } from "node:module";
 
 const require = createRequire(import.meta.url);
@@ -114,6 +115,27 @@ export function installSkillToTargets(ids, { home = os.homedir(), content } = {}
 
 // Symlinks the platform-package binaries into ~/.cli-box/bin.
 // Never throws: returns { ok:false, reason } if the platform package is absent.
+// Try to install a platform package from the official npmjs.org registry.
+// This is a fallback when the user's configured registry (e.g., npmmirror)
+// doesn't have the required version due to mirror sync lag.
+function tryInstallFromOfficialRegistry(pkgName) {
+  try {
+    // Read the expected version from this package's optionalDependencies
+    const selfPkg = require.resolve("../package.json");
+    const { optionalDependencies } = JSON.parse(fs.readFileSync(selfPkg, "utf8"));
+    const version = optionalDependencies?.[pkgName];
+    if (!version) return false;
+
+    execSync(
+      `npm install ${pkgName}@${version} --registry=https://registry.npmjs.org --no-save`,
+      { stdio: "ignore", timeout: 60_000 }
+    );
+    return true;
+  } catch {
+    return false;
+  }
+}
+
 export function ensureBinaries({ home = os.homedir() } = {}) {
   const binDir = path.join(home, ".cli-box", "bin");
   fs.mkdirSync(binDir, { recursive: true });
@@ -127,7 +149,16 @@ export function ensureBinaries({ home = os.homedir() } = {}) {
   try {
     pkgDir = path.dirname(require.resolve(`${pkgName}/package.json`));
   } catch {
-    return { ok: false, reason: `platform package ${pkgName} not found`, binDir };
+    // Fallback: try installing from the official npmjs.org registry
+    if (tryInstallFromOfficialRegistry(pkgName)) {
+      try {
+        pkgDir = path.dirname(require.resolve(`${pkgName}/package.json`));
+      } catch {
+        return { ok: false, reason: `platform package ${pkgName} not found (fallback failed)`, binDir };
+      }
+    } else {
+      return { ok: false, reason: `platform package ${pkgName} not found`, binDir };
+    }
   }
 
   const linked = [];
diff --git a/packages/cli-box-skill/package.json b/packages/cli-box-skill/package.json
index 5d1b1da..aae7b2f 100644
--- a/packages/cli-box-skill/package.json
+++ b/packages/cli-box-skill/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cli-box-skill",
-  "version": "0.2.2",
+  "version": "0.2.8",
   "description": "macOS desktop automation sandbox for AI agents",
   "main": "postinstall.mjs",
   "bin": {
@@ -12,8 +12,8 @@
     "test": "node --test"
   },
   "optionalDependencies": {
-    "cli-box-darwin-arm64": "0.2.1",
-    "cli-box-electron-darwin-arm64": "0.2.1"
+    "cli-box-darwin-arm64": "0.2.8",
+    "cli-box-electron-darwin-arm64": "0.2.8"
   },
   "files": [
     "skill/SKILL.md",