diff --git a/demo_erp_scrape.py b/demo_erp_scrape.py
new file mode 100644
index 0000000..3d9a1c1
--- /dev/null
+++ b/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())
diff --git a/packages/extension/src/agent/RemotePageController.ts b/packages/extension/src/agent/RemotePageController.ts
index 580f9c2..63162b9 100644
--- a/packages/extension/src/agent/RemotePageController.ts
+++ b/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',
diff --git a/packages/extension/src/entrypoints/hub/hub-ws.ts b/packages/extension/src/entrypoints/hub/hub-ws.ts
index c439d28..feaa53e 100644
--- a/packages/extension/src/entrypoints/hub/hub-ws.ts
+++ b/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 }