feat: zod support v3/4

packages/core/package.json

@@ -44,8 +44,13 @@
     },
     "dependencies": {
         "chalk": "^5.6.2",
-        "zod": "^4.3.5",
         "@page-agent/llms": "1.4.4",
         "@page-agent/page-controller": "1.4.4"
+    },
+    "peerDependencies": {
+        "zod": "^3.25.0 || ^4.0.0"
+    },
+    "devDependencies": {
+        "zod": "^4.3.5"
     }
 }

packages/core/src/PageAgentCore.ts

@@ -5,7 +5,7 @@
 import { InvokeError, LLM, type Tool } from '@page-agent/llms'
 import type { BrowserState, PageController } from '@page-agent/page-controller'
 import chalk from 'chalk'
-import * as z from 'zod'
+import * as z from 'zod/v4'
 
 import SYSTEM_PROMPT from './prompts/system_prompt.md?raw'
 import { tools } from './tools'

packages/core/src/tools/index.ts

@@ -2,7 +2,7 @@
  * Internal tools for PageAgent.
  * @note Adapted from browser-use
  */
-import * as z from 'zod'
+import * as z from 'zod/v4'
 
 import type { PageAgentCore } from '../PageAgentCore'
 import { waitFor } from '../utils'

packages/core/src/utils/autoFixer.ts

@@ -1,6 +1,6 @@
 import { InvokeError, InvokeErrorType } from '@page-agent/llms'
 import chalk from 'chalk'
-import * as z from 'zod'
+import * as z from 'zod/v4'
 
 import type { PageAgentTool } from '../tools'
 

packages/core/vite.config.js

@@ -30,6 +30,7 @@ export default defineConfig({
 			external: [
 				'chalk',
 				'zod',
+				'zod/v4',
 				// all the internal packages
 				/^@page-agent\//,
 			],