fix(extension): resolve race condition in hub config and fix tab initialization crash

add: erp scrape python demo

demo_erp_scrape.py

@@ -0,0 +1,58 @@
+import asyncio
+import os
+from dotenv import load_dotenv
+from mcp import ClientSession, StdioServerParameters
+from mcp.client.stdio import stdio_client
+
+# 加载当前目录下的 .env 文件
+load_dotenv()
+
+async def run_browser_automation():
+    print("⏳ 正在启动 Page Agent MCP 服务器...")
+    print("👉 如果你没有打开浏览器，系统会自动帮你唤起默认浏览器！\n")
+    
+    # 1. 配置 MCP 服务端
+    # 它会自动读取当前系统的 PATH，调用 npx 启动 @page-agent/mcp
+    server_params = StdioServerParameters(
+        command="npx",
+        args=["-y", "@page-agent/mcp"],
+        env={
+            **os.environ,
+            "LLM_BASE_URL": os.getenv("LLM_BASE_URL", ""), 
+            "LLM_API_KEY": os.getenv("LLM_API_KEY", ""),
+            "LLM_MODEL_NAME": os.getenv("LLM_MODEL_NAME", "qwen-plus")
+        }
+    )
+
+    # 2. 通过标准输入输出（Stdio）连接到插件的 MCP 服务
+    async with stdio_client(server_params) as (read, write):
+        async with ClientSession(read, write) as session:
+            # 初始化握手
+            await session.initialize()
+            
+            print("✅ 成功连接到了 MCP 服务端！正在等待浏览器插件握手...")
+            
+            # 轮询等待浏览器插件连上来
+            for _ in range(15):
+                status_res = await session.call_tool("get_status", {})
+                if '"connected": true' in status_res.content[0].text:
+                    break
+                await asyncio.sleep(1)
+            else:
+                print("❌ 浏览器插件连接超时！请确保 Chrome 浏览器正常运行，并启用了 Page Agent 插件。")
+                return
+            
+            task_prompt = "请你先导航到 https://preview.pro.ant.design/list/table-list/ 页面，然后使用自定义工具 scrapeErpOrdersTool 来抓取当前页面的所有分页表格数据。抓取完成后，请告诉我一共抓取到了多少条数据，并列出前三条作为示例。"
+            print(f"🤖 派发自然语言任务: 【{task_prompt}】\n")
+            print("👁️‍🗨️ 正在观测浏览器执行... (你可以切回浏览器看着它自动操作，大概需要几十秒)")
+            
+            # 调用 MCP 的 execute_task 工具
+            result = await session.call_tool("execute_task", {
+                "task": task_prompt
+            })
+            
+            print("\n🎉 浏览器任务执行完毕，大模型返回的最终结果是：")
+            print(result.content[0].text)
+
+if __name__ == "__main__":
+    asyncio.run(run_browser_automation())

docs/custom-tools-guide.md

@@ -0,0 +1,113 @@
+# Page Agent 自定义工具注册指南
+
+在 Page Agent 体系中，你可以通过注册自定义工具（Custom Tools），让大模型能够执行你编写的特定 JavaScript 代码（如：复杂的批量爬虫、与系统底层的原生交互等）。
+
+## 核心架构原理
+Page Agent 的 Extension 版本使用了 `MultiPageAgent` 类来初始化。大模型与浏览器的交互是通过 `PageController` 实现的。
+要增加新的工具，我们只需两步：**编写工具逻辑** -> **在实例化时注入配置**。
+
+## 步骤一：创建你的自定义工具
+
+在 `packages/extension/src/agent/` 目录下（或者你自己的工具管理目录），创建一个新的工具文件，例如 `customTools.ts`。
+
+你需要引入 `@page-agent/core` 中的 `tool` 辅助函数，以及 `zod` 来定义参数格式：
+
+```typescript
+// 文件路径：packages/extension/src/agent/customTools.ts
+import { tool } from '@page-agent/core'
+import * as z from 'zod/v4'
+
+export const myCustomTool = tool({
+    // 【必填】Description: 给大模型看的自然语言说明书。写得越清楚，大模型调用的时机越准确。
+    description: '当需要执行特定的复杂业务逻辑（如静默抓取数据）时，调用此工具。',
+    
+    // 【必填】InputSchema: 如果工具需要参数（比如你要抓取的目标页数），在这里定义。不需要参数写 z.object({})
+    inputSchema: z.object({
+        targetCount: z.number().optional().describe("目标抓取数量")
+    }),
+    
+    // 【必填】Execute: 工具被大模型触发时执行的后台代码
+    execute: async function (input, { signal }) {
+        // 由于这段代码跑在 Chrome Extension 的 Background Worker 中，不能直接操纵网页 DOM。
+        // 同时出于安全限制，插件环境禁用了底层的 executeJavascript 方法。
+        // 我们必须使用 Chrome 原生的 chrome.scripting API 来向目标网页注入脚本。
+
+        // 1. 获取当前大模型正在操作的页面 Tab ID
+        const tabId = (this.pageController as any).currentTabId;
+        if (!tabId) return "报错：未找到激活的页面";
+        
+        // 2. 将代码注入目标网页执行
+        const results = await chrome.scripting.executeScript({
+            target: { tabId: tabId },
+            func: async () => {
+                // ... 这段代码将直接跑在网页（如金蝶 ERP）的控制台内部
+                return new Promise((resolve) => {
+                    const data = "抓取完成的数据";
+                    resolve(data); // 务必把数据 resolve 回后台
+                });
+            }
+        });
+        
+        // 3. 取出网页传回来的数据
+        const resultData = results[0]?.result;
+        
+        // 4. 将数据发送给后端的数据库 API (边抓边存，或最后存)
+        // await fetch('https://api.yourdomain.com/save', { method: 'POST', body: JSON.stringify(resultData) });
+
+        // 5. 返回给大模型汇报工作
+        return \`工具执行成功，已处理数据：\${resultData}\`;
+    }
+});
+```
+
+> **🚨 极其关键的安全权限配置：**
+> 使用 `chrome.scripting` API 前，你**必须**在插件配置文件 `packages/extension/wxt.config.js` 的 `permissions` 数组中添加 `'scripting'` 权限，否则会一直报错！
+> 
+> ```javascript
+> // wxt.config.js
+> permissions: ['tabs', 'tabGroups', 'sidePanel', 'storage', 'scripting'],
+> ```
+
+## 步骤二：将工具注册到 Agent 实例中
+
+编写完工具后，你必须告诉 Page Agent 存在这个工具。
+
+打开 `packages/extension/src/agent/MultiPageAgent.ts`（或者你实例化 `PageAgent` 的地方）。在 `customTools` 属性中注册你的工具。
+
+```typescript
+// 文件路径：packages/extension/src/agent/MultiPageAgent.ts
+import { createTabTools } from './tabTools'
+import { myCustomTool } from './customTools' // 1. 引入你的工具
+
+export class MultiPageAgent extends PageAgentCore {
+    constructor(config: MultiPageAgentConfig) {
+        // ... (原有的 controller 初始化代码)
+        
+        // 2. 将你的工具合并到 customTools 对象中
+        const customTools = {
+            ...createTabTools(tabsController), // 保留原有的内置 Tab 切换工具
+            my_custom_tool: myCustomTool,      // 注册你的新工具，键名 (my_custom_tool) 就是工具对外的 ID
+        }
+
+        super({
+            // ... (原有的其他配置)
+            customTools: customTools,          // 3. 将工具对象传递给底层配置
+        });
+        
+        // ...
+    }
+}
+```
+
+## 步骤三：编译与发布插件
+
+代码修改完毕后，你需要重新构建浏览器插件：
+
+在项目的根目录（`/Users/seay/Documents/code/page-agent`）执行以下命令：
+
+```bash
+npm run build:ext
+```
+
+- 该命令会自动编译压缩代码，并在 `packages/extension/.output/` 目录下生成打包好的 `.zip` 文件（例如 `.output/page-agent-ext-1.10.0-chrome.zip`）。
+- **更新插件：** 将此 `.zip` 文件发给客户解压。在浏览器的 `chrome://extensions/` 界面中覆盖加载该文件夹，并点击“刷新”图标即可生效。大模型立刻就能使用你的新工具了。

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packages/extension/src/agent/MultiPageAgent.ts

@@ -2,6 +2,7 @@ import { type AgentConfig, PageAgentCore } from '@page-agent/core'
 
 import { RemotePageController } from './RemotePageController'
 import { TabsController } from './TabsController'
+import { scrapeErpOrdersTool } from './customTools'
 import SYSTEM_PROMPT from './system_prompt.md?raw'
 import { createTabTools } from './tabTools'
 
@@ -26,7 +27,12 @@ export class MultiPageAgent extends PageAgentCore {
 		// multi page controller
 		const tabsController = new TabsController()
 		const pageController = new RemotePageController(tabsController)
-		const customTools = createTabTools(tabsController)
+
+		// 注册内置工具以及我们自定义的 ERP 抓取工具
+		const customTools = {
+			...createTabTools(tabsController),
+			scrape_erp_orders: scrapeErpOrdersTool,
+		}
 
 		// system prompt - auto-detect language if not specified
 		const language = config.language ?? detectLanguage()

packages/extension/src/agent/RemotePageController.ts

@@ -47,7 +47,7 @@ export class RemotePageController {
 	}
 
 	async getLastUpdateTime(): Promise<number> {
-		if (!this.currentTabId) throw new Error('tabsController not initialized.')
+		if (!this.currentTabId) return Date.now()
 		return sendMessage({
 			type: 'PAGE_CONTROL',
 			action: 'get_last_update_time',

packages/extension/src/agent/customTools.ts

@@ -0,0 +1,64 @@
+import { tool } from '@page-agent/core'
+import * as z from 'zod/v4'
+
+export const scrapeErpOrdersTool = tool({
+	description:
+		'当到达 ERP 订单列表或查询列表的第一页时，调用此工具。该工具会自动接管浏览器，静默抓取所有分页表格数据。',
+	inputSchema: z.object({}),
+	execute: async function (input, { signal }) {
+		console.log('🚀 大模型已切断，原生爬虫代码接管...')
+
+		// 获取当前正在被 Agent 控制的标签页 ID
+		const tabId = (this.pageController as any).currentTabId
+		if (!tabId) {
+			return '❌ 错误：没有找到激活的标签页，无法执行抓取。'
+		}
+
+		try {
+			// 在 Chrome 插件中，不能使用 executeJavascript，必须使用 Chrome 原生的 scripting API 注入代码
+			const results = await chrome.scripting.executeScript({
+				target: { tabId: tabId },
+				func: async () => {
+					// --- 以下代码将原封不动地在金蝶/AntDesign的网页环境内部执行 ---
+					let allData: any[] = []
+					let pageCount = 1
+					while (true) {
+						const rows = document.querySelectorAll('tr.ant-table-row')
+						const pageData = Array.from(rows).map((row) => {
+							const cells = row.querySelectorAll('td')
+							return {
+								ruleName: cells[1] ? (cells[1] as HTMLElement).innerText.trim() : '',
+								desc: cells[2] ? (cells[2] as HTMLElement).innerText.trim() : '',
+							}
+						})
+
+						allData = allData.concat(pageData)
+
+						const nextLi = document.querySelector('li.ant-pagination-next')
+						if (!nextLi || nextLi.classList.contains('ant-pagination-disabled')) {
+							return allData // 把数据回传
+						}
+
+						const nextBtn = nextLi.querySelector('button')
+						if (nextBtn) nextBtn.click()
+						else (nextLi as HTMLElement).click()
+
+						pageCount++
+						await new Promise((r) => setTimeout(r, 1500))
+					}
+					// --- 网页内部代码结束 ---
+				},
+			})
+
+			// 提取网页返回的数据
+			// eslint-disable-next-line @typescript-eslint/no-explicit-any
+			const extractedOrders = (results && results[0] ? results[0].result : []) as any
+			console.log('✅ 成功拿到了网页返回的全部数据：', extractedOrders)
+
+			return `成功抓取了所有 ${extractedOrders?.length || 0} 条订单数据，并已打印到后台控制台日志中。`
+		} catch (error) {
+			console.error('执行脚本失败:', error)
+			return `❌ 抓取失败: ${error}`
+		}
+	},
+})

packages/extension/src/entrypoints/hub/hub-ws.ts

@@ -218,9 +218,23 @@ export function useHubWs(
 			Number(wsPort),
 			{
 				onExecute: async (task, incomingConfig) => {
-					const { execute, configure, config } = latestRef.current
+					let { execute } = latestRef.current
+					const { configure, config } = latestRef.current
 					if (incomingConfig) {
-						await configure({ ...config, ...incomingConfig } as ExtConfig)
+						let changed = false
+						for (const key of Object.keys(incomingConfig)) {
+							if (incomingConfig[key] !== (config as any)?.[key]) {
+								changed = true
+								break
+							}
+						}
+						if (changed) {
+							await configure({ ...config, ...incomingConfig } as ExtConfig)
+							// Wait a bit for React to re-render and instantiate the new MultiPageAgent
+							await new Promise((resolve) => setTimeout(resolve, 500))
+							// Re-fetch the newly generated execute function after re-render
+							execute = latestRef.current.execute
+						}
 					}
 					const result = await execute(task)
 					return { success: result.success, data: result.data }

packages/extension/wxt.config.js

@@ -45,7 +45,7 @@ export default defineConfig({
 		name: '__MSG_extName__',
 		description: '__MSG_extDescription__',
 		homepage_url: 'https://alibaba.github.io/page-agent/',
-		permissions: ['tabs', 'tabGroups', 'sidePanel', 'storage'],
+		permissions: ['tabs', 'tabGroups', 'sidePanel', 'storage', 'scripting'],
 		host_permissions: ['<all_urls>'],
 		icons: {
 			64: 'assets/page-agent-64.png',