diff --git a/.gitignore b/.gitignore
index 0b911cf..c4776a4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,6 +25,9 @@ dist-ssr
 *.sw?
 .qoder
 
+# publish backup
+package.json.bak
+
 # env files
 .env
 .env.*
diff --git a/package.json b/package.json
index 803dd08..0705ae6 100644
--- a/package.json
+++ b/package.json
@@ -33,6 +33,7 @@
         "build:website": "npm run build:website --workspace=@page-agent/website",
         "build:ext": "npm run build:libs && npm run zip -w @page-agent/ext",
         "version": "node scripts/sync-version.js",
+        "postpublish": "npm run postpublish --workspaces --if-present",
         "typecheck": "tsc --noEmit -p tsconfig.typecheck.json && tsc --noEmit -p packages/extension/tsconfig.json",
         "lint": "eslint .",
         "cleanup": "rm -rf packages/*/dist && rm -rf packages/*/.output",
diff --git a/packages/core/package.json b/packages/core/package.json
index f58864d..202e7ab 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -49,8 +49,8 @@
     "scripts": {
         "build": "vite build",
         "dev:iife": "concurrently \"vite build --config vite.iife.config.js --watch\" \"npx serve dist/iife -p 5174\"",
-        "prepublishOnly": "node ../../scripts/prepare-publish.js",
-        "postpublish": "node ../../scripts/restore-dev.js"
+        "prepublishOnly": "node ../../scripts/pre-publish.js",
+        "postpublish": "node ../../scripts/post-publish.js"
     },
     "dependencies": {
         "chalk": "^5.6.2",
diff --git a/packages/llms/package.json b/packages/llms/package.json
index 9a520ed..e56a205 100644
--- a/packages/llms/package.json
+++ b/packages/llms/package.json
@@ -43,8 +43,8 @@
     "homepage": "https://alibaba.github.io/page-agent/",
     "scripts": {
         "build": "vite build",
-        "prepublishOnly": "node ../../scripts/prepare-publish.js",
-        "postpublish": "node ../../scripts/restore-dev.js"
+        "prepublishOnly": "node ../../scripts/pre-publish.js",
+        "postpublish": "node ../../scripts/post-publish.js"
     },
     "dependencies": {
         "chalk": "^5.6.2"
diff --git a/packages/page-agent/package.json b/packages/page-agent/package.json
index fc753a0..4bd2ed8 100644
--- a/packages/page-agent/package.json
+++ b/packages/page-agent/package.json
@@ -50,8 +50,8 @@
         "build": "vite build && npm run build:demo",
         "build:demo": "vite build --config vite.iife.config.js",
         "dev:demo": "concurrently \"vite build --config vite.iife.config.js --watch\" \"npx serve dist/iife -p 5174\"",
-        "prepublishOnly": "node ../../scripts/prepare-publish.js",
-        "postpublish": "node ../../scripts/restore-dev.js"
+        "prepublishOnly": "node ../../scripts/pre-publish.js",
+        "postpublish": "node ../../scripts/post-publish.js"
     },
     "dependencies": {
         "@page-agent/core": "1.7.1",
diff --git a/packages/page-controller/package.json b/packages/page-controller/package.json
index cfb58a0..9ec3eb6 100644
--- a/packages/page-controller/package.json
+++ b/packages/page-controller/package.json
@@ -42,8 +42,8 @@
     "homepage": "https://alibaba.github.io/page-agent/",
     "scripts": {
         "build": "vite build",
-        "prepublishOnly": "node ../../scripts/prepare-publish.js",
-        "postpublish": "node ../../scripts/restore-dev.js"
+        "prepublishOnly": "node ../../scripts/pre-publish.js",
+        "postpublish": "node ../../scripts/post-publish.js"
     },
     "dependencies": {
         "ai-motion": "^0.4.8"
diff --git a/packages/ui/package.json b/packages/ui/package.json
index f98f06c..0eacaa5 100644
--- a/packages/ui/package.json
+++ b/packages/ui/package.json
@@ -42,7 +42,7 @@
     "homepage": "https://alibaba.github.io/page-agent/",
     "scripts": {
         "build": "vite build",
-        "prepublishOnly": "node ../../scripts/prepare-publish.js",
-        "postpublish": "node ../../scripts/restore-dev.js"
+        "prepublishOnly": "node ../../scripts/pre-publish.js",
+        "postpublish": "node ../../scripts/post-publish.js"
     }
 }
diff --git a/scripts/post-publish.js b/scripts/post-publish.js
new file mode 100644
index 0000000..e429700
--- /dev/null
+++ b/scripts/post-publish.js
@@ -0,0 +1,30 @@
+#!/usr/bin/env node
+/**
+ * Restore package.json from the backup created by pre-publish.js,
+ * then clean up temporary files (backup, LICENSE, README.md).
+ *
+ * Usage: node ../../scripts/post-publish.js   (from a package dir)
+ */
+import { existsSync, readFileSync, renameSync, rmSync } from 'fs'
+import { join } from 'path'
+
+const pkgPath = join(process.cwd(), 'package.json')
+const bakPath = pkgPath + '.bak'
+
+if (!existsSync(bakPath)) {
+	console.log('  No backup found, nothing to restore.')
+	process.exit(0)
+}
+
+const name = JSON.parse(readFileSync(pkgPath, 'utf-8')).name
+
+renameSync(bakPath, pkgPath)
+console.log('  ✓ package.json restored from backup')
+
+rmSync(join(process.cwd(), 'LICENSE'), { force: true })
+console.log('  ✓ LICENSE removed')
+
+if (name === 'page-agent') {
+	rmSync(join(process.cwd(), 'README.md'), { force: true })
+	console.log('  ✓ README.md removed')
+}
diff --git a/scripts/pre-publish.js b/scripts/pre-publish.js
new file mode 100644
index 0000000..44dc929
--- /dev/null
+++ b/scripts/pre-publish.js
@@ -0,0 +1,42 @@
+#!/usr/bin/env node
+/**
+ * Backup package.json, then rewrite it for publish:
+ *   - Promote `publishConfig` fields to top level
+ *   - Remove `publishConfig` (npm doesn't need the wrapper)
+ *   - Copy LICENSE (and README.md for the main package)
+ *
+ * Usage: node ../../scripts/pre-publish.js   (from a package dir)
+ */
+import { copyFileSync, readFileSync, writeFileSync } from 'fs'
+import { join } from 'path'
+
+const pkgPath = join(process.cwd(), 'package.json')
+const raw = readFileSync(pkgPath, 'utf-8')
+const pkg = JSON.parse(raw)
+
+const publishConfig = pkg.publishConfig
+if (!publishConfig) {
+	console.log('  No publishConfig found, skipping manifest rewrite.')
+	process.exit(0)
+}
+
+// Backup the original file byte-for-byte
+copyFileSync(pkgPath, pkgPath + '.bak')
+console.log('  ✓ package.json backed up')
+
+for (const [field, value] of Object.entries(publishConfig)) {
+	pkg[field] = value
+}
+delete pkg.publishConfig
+
+writeFileSync(pkgPath, JSON.stringify(pkg, null, '    ') + '\n')
+console.log(`  ✓ Manifest rewritten for publish (${Object.keys(publishConfig).join(', ')})`)
+
+const root = join(process.cwd(), '../..')
+copyFileSync(join(root, 'LICENSE'), join(process.cwd(), 'LICENSE'))
+console.log('  ✓ LICENSE copied')
+
+if (pkg.name === 'page-agent') {
+	copyFileSync(join(root, 'README.md'), join(process.cwd(), 'README.md'))
+	console.log('  ✓ README.md copied')
+}
diff --git a/scripts/prepare-publish.js b/scripts/prepare-publish.js
deleted file mode 100644
index 1880afe..0000000
--- a/scripts/prepare-publish.js
+++ /dev/null
@@ -1,48 +0,0 @@
-#!/usr/bin/env node
-/**
- * Swap source-first dev entrypoints for dist-first publish entrypoints.
- *
- * This script is called by `prepublishOnly` in each publishable package.
- * It reads the `publishConfig` object and promotes its fields to top level,
- * storing the original dev fields in `_devConfig` so `restore-dev.js` can undo it.
- *
- * Usage: node ../../scripts/prepare-publish.js
- */
-import { copyFileSync, readFileSync, writeFileSync } from 'fs'
-import { join } from 'path'
-
-const pkgPath = join(process.cwd(), 'package.json')
-const pkg = JSON.parse(readFileSync(pkgPath, 'utf-8'))
-
-const publishConfig = pkg.publishConfig
-if (!publishConfig) {
-	console.log('  No publishConfig found, skipping manifest rewrite.')
-	process.exit(0)
-}
-
-const PUBLISH_FIELDS = ['main', 'module', 'types', 'exports']
-
-const devConfig = {}
-for (const field of PUBLISH_FIELDS) {
-	if (field in publishConfig) {
-		devConfig[field] = pkg[field]
-		pkg[field] = publishConfig[field]
-	}
-}
-
-pkg._devConfig = devConfig
-delete pkg.publishConfig
-
-writeFileSync(pkgPath, JSON.stringify(pkg, null, '    ') + '\n')
-console.log(`  ✓ Manifest rewritten for publish (${Object.keys(devConfig).join(', ')})`)
-
-const root = join(process.cwd(), '../..')
-copyFileSync(join(root, 'LICENSE'), join(process.cwd(), 'LICENSE'))
-console.log('  ✓ LICENSE copied')
-
-const readmeSrc = join(root, 'README.md')
-const readmeDest = join(process.cwd(), 'README.md')
-if (pkg.name === 'page-agent') {
-	copyFileSync(readmeSrc, readmeDest)
-	console.log('  ✓ README.md copied')
-}
diff --git a/scripts/restore-dev.js b/scripts/restore-dev.js
deleted file mode 100644
index e29bd90..0000000
--- a/scripts/restore-dev.js
+++ /dev/null
@@ -1,45 +0,0 @@
-#!/usr/bin/env node
-/**
- * Restore source-first dev entrypoints after publish.
- *
- * Undoes what `prepare-publish.js` did by reading `_devConfig`
- * and reinstating the original dev fields + `publishConfig`.
- *
- * Usage: node ../../scripts/restore-dev.js
- */
-import { readFileSync, rmSync, writeFileSync } from 'fs'
-import { join } from 'path'
-
-const pkgPath = join(process.cwd(), 'package.json')
-const pkg = JSON.parse(readFileSync(pkgPath, 'utf-8'))
-
-const devConfig = pkg._devConfig
-if (!devConfig) {
-	console.log('  No _devConfig found, skipping manifest restore.')
-	process.exit(0)
-}
-
-const PUBLISH_FIELDS = ['main', 'module', 'types', 'exports']
-
-const publishConfig = {}
-for (const field of PUBLISH_FIELDS) {
-	if (field in devConfig) {
-		publishConfig[field] = pkg[field]
-		pkg[field] = devConfig[field]
-	}
-}
-
-pkg.publishConfig = publishConfig
-delete pkg._devConfig
-
-writeFileSync(pkgPath, JSON.stringify(pkg, null, '    ') + '\n')
-console.log(`  ✓ Manifest restored for dev (${Object.keys(publishConfig).join(', ')})`)
-
-const licensePath = join(process.cwd(), 'LICENSE')
-rmSync(licensePath, { force: true })
-console.log('  ✓ LICENSE removed')
-
-if (pkg.name === 'page-agent') {
-	rmSync(join(process.cwd(), 'README.md'), { force: true })
-	console.log('  ✓ README.md removed')
-}