chore(version): bump version to 1.3.0

- add `stop` method. agent can be reused after stopped
- agent can not be reused after disposed
- extension DO NOT exposes `dispose` anymore. only `stop`.
- update panel for new `stop` method
- fix MultiPageAgent dispose event
- better handling abortSignal

.vscode/settings.json

@@ -18,7 +18,7 @@
         "wouter"
     ],
     "files.exclude": {
-        "packages/*/node_modules": true,
+        "packages/*/node_modules": true
     },
     "markdownlint.config": {
         // "comment": "Relaxed rules",
@@ -32,6 +32,7 @@
         "first-line-h1": false,
         "block-spacing": false,
         "blanks-around-lists": false,
-        "ol-prefix": false
+        "ol-prefix": false,
+        "no-duplicate-heading": false
     }
 }

AGENTS.md

@@ -22,6 +22,7 @@ npm start                    # Start website dev server
 npm run build                # Build all packages
 npm run build:libs           # Build all libraries
 npm run lint                 # ESLint with TypeScript strict rules
+npm run zip -w @page-agent/ext # Zip the extension package
 ```
 
 ## Architecture
@@ -36,7 +37,7 @@ packages/
 ├── page-agent/              # npm: "page-agent" entry class (with UI + controller + demo builds)
 ├── website/                 # @page-agent/website (private)
 ├── llms/                    # @page-agent/llms
-├── extension/               # 🚧 WIP: Browser extension (WXT + React)
+├── extension/               # Browser extension (WXT + React)
 ├── page-controller/         # @page-agent/page-controller
 └── ui/                      # @page-agent/ui
 ```

CHANGELOG.md

@@ -5,6 +5,65 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.3.0] - 2026-02-13
+
+### Breaking Changes
+
+- **Lifecycle: `stop()` vs `dispose()`** - New `stop()` method to cancel the current task while keeping the agent reusable. `dispose()` is now terminal — a disposed agent cannot be reused. This affects both `PageAgentCore` and `PanelAgentAdapter`.
+
+### Features
+
+- **Panel action button** - The panel button now morphs between Stop (■) and Close (X) based on agent status
+- **Error history** - Errors and max-step failures are now recorded in `history` as `AgentErrorEvent`, making post-task analysis more complete
+
+### Bug Fixes
+
+- **AbortError handling** - `AbortError` is no longer retried by the LLM client, and shows a clean "Task stopped" message instead of a raw error stack
+
+---
+
+## [1.2.0] - 2026-02-11
+
+### Features
+
+- **Observe Phase** - Agent now observes the page before each action, improving decision accuracy on dynamic pages
+- **Better Abort Handling** - Improved `abortSignal` support for cleaner task cancellation
+
+### Improvements
+
+- Pruned system prompts for lower token usage and faster responses
+- Improved error handling during agent steps with better error messages
+- Zod tree-shaking for smaller bundle size
+
+### Bug Fixes
+
+- Fixed indentation lost in DOM extraction caused by `trimLines`
+- Fixed `gpt-5-mini` temperature configuration
+
+---
+
+## [1.1.0] - 2026-02-02
+
+### Features
+
+- **Custom System Prompt** - New `systemPrompt` config option to customize or extend the default system prompt
+- **Chrome Extension** - Extension with multi-tab control, main-world API with token auth, and tab lifecycle management
+
+### Improvements
+
+- Renamed `include_attributes` to `includeAttributes` in PageController config (camelCase consistency)
+- Lazy-loaded mask module for faster initialization
+- Better date formatting and error messages from LLM client
+- Added `rawRequest` to step history for easier debugging
+
+### Bug Fixes
+
+- Fixed CSP errors by using local SVGs for cursor mask instead of inline styles
+- Fixed `AbortError` being incorrectly retried and shown to users
+- Fixed mask not working correctly when starting a new task after stopping a previous one
+
+---
+
 ## [1.0.0] - 2026-01-19
 
 ### 🎉 First Stable Release

CONTRIBUTING.md

@@ -20,10 +20,11 @@ Thank you for your interest in contributing to Page-Agent! We welcome contributi
 
 ### Project Structure
 
-This is a **monorepo** with npm workspaces containing **3 main packages**:
+This is a **monorepo** with npm workspaces containing **4 main packages**:
 
 - **Page Agent** (`packages/page-agent/`) - Main entry with built-in UI Panel, published as `page-agent` on npm
 - **Core** (`packages/core/`) - Core agent logic without UI (npm: `@page-agent/core`)
+- **Extension** (`packages/extension/`) - Chrome extension for multi-page tasks and browser-level automation
 - **Website** (`packages/website/`) - React documentation and landing page. Also as demo and test page for the core lib. private package `@page-agent/website`
 
 We use a simplified monorepo solution with `native npm-workspace + ts reference + vite alias`. No fancy tooling. Hoisting is required.
@@ -145,6 +146,16 @@ If your lame AI assistant does not support [AGENTS.md](https://agents.md/). Add
 npm start
 ```
 
+### Extension Development
+
+```bash
+npm run dev -w @page-agent/ext
+npm run zip -w @page-agent/ext
+```
+
+- Load extension in Chrome via `chrome://extensions` -> **Load unpacked**
+- Use `packages/extension/docs/extension_api.md` (EN) or `packages/extension/docs/extension_api_zh.md` (ZH) for API integration details
+
 ### Testing on Other Websites
 
 - Start and serve a local `iife` script
@@ -193,14 +204,6 @@ By contributing to this project, you agree that your contributions will be licen
 
 > You may need to sign a github CLA before you create a PR.
 
-### Browser-Use Attribution
-
-Parts of this project are derived from the [browser-use](https://github.com/browser-use/browser-use) project (MIT License). When contributing to DOM-related functionality:
-
-- Maintain existing attribution comments
-- Follow similar patterns for consistency
-- Credit browser-use for derived concepts
-
 ## 💬 Questions?
 
 - Open a GitHub issue for technical questions

README-zh.md

@@ -1,4 +1,4 @@
-# PageAgent 🤖🪄
+# Page Agent
 
 <picture>
   <source media="(prefers-color-scheme: dark)" srcset="https://img.alicdn.com/imgextra/i4/O1CN01qKig1P1FnhpFKNdi6_!!6000000000532-2-tps-1280-256.png">
@@ -20,17 +20,15 @@
 ## ✨ Features
 
 - **🎯 轻松集成** 
-    - 无需 Python，无需无头浏览器，无需浏览器插件。纯页面内脚本。
+  - 无需 `浏览器插件` / `Python` / `无头浏览器`。
-- **🔐 端侧运行**
+  - 纯页面内 JavaScript，一切都在你的网页中完成。
-- **🧠 HTML 脱水**
+  - The best tool for your agent to control web pages.
-- **💬 自然语言接口**
+- **📖 基于文本的 DOM 操作**
-- **🎨 HITL 交互界面**
+  - 无需截图，无需 OCR 或多模态模型。
-
+  - 无需特殊权限。
-以及 😉
+- **🧠 用你自己的 LLM**
-
+- **🎨 精美 UI，支持人机协同**
-- **🧪 实验性的 Chrome 扩展，支持跨页面控制** - `packages/extension`
+- **🐙 可选的 [Chrome 扩展](https://alibaba.github.io/page-agent/#/docs/features/chrome-extension)，支持跨页面任务。**
-
-👉 [**🗺️ Roadmap**](https://github.com/alibaba/page-agent/issues/96)
 
 ## 🚀 快速开始
 
@@ -39,19 +37,15 @@
 通过我们免费的 Demo LLM 快速体验 PageAgent：
 
 ```html
-<script
+<script src="{URL}" crossorigin="true"></script>
-    src="https://registry.npmmirror.com/page-agent/1.1.2/files/dist/iife/page-agent.demo.js"
-    crossorigin="true"
-></script>
 ```
 
-> - **⚠️ 仅用于技术评估。** Demo LLM 有速率和使用限制，可能随时变更。
-> - **🌷 建议使用自己的 LLM API。**
-
 | Mirrors | URL                                                                                |
 | ------- | ---------------------------------------------------------------------------------- |
-| Global  | https://cdn.jsdelivr.net/npm/page-agent@1.1.2/dist/iife/page-agent.demo.js         |
+| Global  | https://cdn.jsdelivr.net/npm/page-agent@1.3.0/dist/iife/page-agent.demo.js         |
-| China   | https://registry.npmmirror.com/page-agent/1.1.2/files/dist/iife/page-agent.demo.js |
+| China   | https://registry.npmmirror.com/page-agent/1.3.0/files/dist/iife/page-agent.demo.js |
+
+> **⚠️ 仅用于技术评估。** Demo LLM 有速率和使用限制，速度较慢，可能随时变更。
 
 ### NPM 安装
 
@@ -72,7 +66,7 @@ const agent = new PageAgent({
 await agent.execute('点击登录按钮')
 ```
 
-适用于无法使用 NPM 的环境，我们也提供了 IIFE 构建的 CDN 方式。[@see CDN Usage](https://alibaba.github.io/page-agent/#/docs/integration/cdn-setup)
+更多编程用法，请参阅 [📖 文档](https://alibaba.github.io/page-agent/#/docs/introduction/overview)。
 
 ## 🏗️ 架构设计
 
@@ -80,12 +74,13 @@ PageAgent adopts a simplified monorepo structure:
 
 ```
 packages/
-├── core/                # ** Core agent logic without UI(npm: @page-agent/core) **
+├── core/                # ** Core agent logic (npm: @page-agent/core) **
-├── page-agent/          # Exported agent and demo(npm: page-agent)
 ├── llms/                # LLM 客户端 (npm: @page-agent/llms)
-├── page-controller/     # DOM 操作 & 蒙层 & 模拟鼠标 (npm: @page-agent/page-controller)
+├── page-controller/     # DOM 操作 (npm: @page-agent/page-controller)
-├── ui/                  # 面板 & i18n (npm: @page-agent/ui)
+├── ui/                  # 面板 UI (npm: @page-agent/ui)
-└── website/             # 文档站点
+├── page-agent/          # 入口类 & iife 包 (npm: page-agent)
+├── extension/           # Chrome 扩展，支持跨页面任务
+└── website/             # 网站 & 文档站点
 ```
 
 ## 🤝 贡献

README.md

@@ -1,4 +1,4 @@
-# PageAgent 🤖🪄
+# Page Agent
 
 <picture>
   <source media="(prefers-color-scheme: dark)" srcset="https://img.alicdn.com/imgextra/i4/O1CN01qKig1P1FnhpFKNdi6_!!6000000000532-2-tps-1280-256.png">
@@ -19,18 +19,16 @@ The GUI Agent Living in Your Webpage. Control web interfaces with natural langua
 
 ## ✨ Features
 
-- **🎯 Easy Integration**
+- **🎯 Easy integration** 
-    - No python. No headless browser. No browser extension. Just in-page scripts.
+  - No need for `browser extension` / `python` / `headless browser`. 
-- **🔐 Client-Side Processing**
+  - Just in-page javascript. Everything happens in your web page.
-- **🧠 DOM Extraction**
+  - The best tool for your agent to control web pages.
-- **💬 Natural Language Interface**
+- **📖 Text-based DOM manipulation**
-- **🎨 UI with Human in the loop**
+  - No screenshots. No OCR or multi-modal LLMs needed.
-
+  - No special permissions required.
-And 😉
+- **🧠 Bring your own LLMs**
-
+- **🎨 Pretty UI with human-in-the-loop**
-- **🧪 `cross-page` control with an experimental chrome extension** - `packages/extension`
+- **🐙 Optional [chrome extension](https://alibaba.github.io/page-agent/#/docs/features/chrome-extension) for multi-page tasks.**
-
-👉 [**🗺️ Roadmap**](https://github.com/alibaba/page-agent/issues/96)
 
 ## 🚀 Quick Start
 
@@ -39,19 +37,15 @@ And 😉
 Fastest way to try PageAgent with our free Demo LLM:
 
 ```html
-<script
+<script src="{URL}" crossorigin="true"></script>
-    src="https://cdn.jsdelivr.net/npm/page-agent@1.1.2/dist/iife/page-agent.demo.js"
-    crossorigin="true"
-></script>
 ```
 
-> - **⚠️ For technical evaluation only.** Demo LLM has rate limits and usage restrictions. May change without notice.
-> - **🌷 Bring your own LLM API.**
-
 | Mirrors | URL                                                                                |
 | ------- | ---------------------------------------------------------------------------------- |
-| Global  | https://cdn.jsdelivr.net/npm/page-agent@1.1.2/dist/iife/page-agent.demo.js         |
+| Global  | https://cdn.jsdelivr.net/npm/page-agent@1.3.0/dist/iife/page-agent.demo.js         |
-| China   | https://registry.npmmirror.com/page-agent/1.1.2/files/dist/iife/page-agent.demo.js |
+| China   | https://registry.npmmirror.com/page-agent/1.3.0/files/dist/iife/page-agent.demo.js |
+
+> **⚠️ For technical evaluation only.** Demo LLM has rate limits and usage restrictions. Slow. May change without notice.
 
 ### NPM Installation
 
@@ -72,18 +66,21 @@ const agent = new PageAgent({
 await agent.execute('Click the login button')
 ```
 
+For more programmatic usage, see [📖 Documentations](https://alibaba.github.io/page-agent/#/docs/introduction/overview).
+
 ## 🏗️ Structure
 
 PageAgent adopts a simplified monorepo structure:
 
 ```
 packages/
-├── core/                # ** Core agent logic without UI(npm: @page-agent/core) **
+├── core/                # ** Core agent logic (npm: @page-agent/core) **
-├── page-agent/          # Exported agent and demo(npm: page-agent)
 ├── llms/                # LLM client (npm: @page-agent/llms)
-├── page-controller/     # DOM operations & Visual Mask (npm: @page-agent/page-controller)
+├── page-controller/     # DOM operations (npm: @page-agent/page-controller)
-├── ui/                  # Panel & i18n (npm: @page-agent/ui)
+├── ui/                  # Panel UI (npm: @page-agent/ui)
-└── website/             # Demo & Documentation site
+├── page-agent/          # Entry class and iife builds(npm: page-agent)
+├── extension/           # Chrome extension for multi-page tasks
+└── website/             # Website & Documentation site
 ```
 
 ## 🤝 Contributing

package.json

@@ -1,7 +1,7 @@
 {
     "name": "root",
     "private": true,
-    "version": "1.1.2",
+    "version": "1.3.0",
     "type": "module",
     "workspaces": [
         "packages/page-controller",
@@ -21,8 +21,7 @@
     },
     "homepage": "https://alibaba.github.io/page-agent/",
     "engines": {
-        "node": ">=20.0.0",
+        "node": "^20.19.0 || ^22.13.0 || >=24"
-        "npm": ">=10.0.0"
     },
     "scripts": {
         "cleanup": "rm -rf packages/*/dist",
@@ -39,24 +38,26 @@
         "@commitlint/cli": "^20.3.1",
         "@commitlint/config-conventional": "^20.3.1",
         "@eslint/js": "^9.39.2",
-        "@microsoft/api-extractor": "^7.55.2",
+        "@microsoft/api-extractor": "^7.56.3",
+        "@tailwindcss/vite": "^4.1.18",
         "@trivago/prettier-plugin-sort-imports": "^6.0.2",
-        "@types/node": "^25.0.9",
+        "@types/node": "^25.2.2",
+        "@vitejs/plugin-react-swc": "^4.1.0",
         "chalk": "^5.6.2",
         "concurrently": "^9.2.1",
-        "dotenv": "^17.2.3",
+        "dotenv": "^17.2.4",
         "eslint": "^9.39.2",
         "eslint-config-prettier": "^10.1.8",
-        "eslint-plugin-react-dom": "^2.7.2",
+        "eslint-plugin-react-dom": "^2.12.2",
         "eslint-plugin-react-hooks": "^7.0.1",
         "eslint-plugin-react-refresh": "^0.5.0",
-        "eslint-plugin-react-x": "^2.7.2",
+        "eslint-plugin-react-x": "^2.12.2",
         "globals": "^17.0.0",
         "husky": "^9.1.7",
         "lint-staged": "^16.2.4",
         "prettier": "^3.8.0",
         "typescript": "^5.9.3",
-        "typescript-eslint": "^8.54.0",
+        "typescript-eslint": "^8.55.0",
         "unplugin-dts": "^1.0.0-beta.6",
         "vite": "^7.3.1",
         "vite-plugin-css-injected-by-js": "^3.5.2",

packages/core/package.json

@@ -1,7 +1,7 @@
 {
     "name": "@page-agent/core",
     "private": false,
-    "version": "1.1.2",
+    "version": "1.3.0",
     "type": "module",
     "main": "./dist/esm/page-agent-core.js",
     "module": "./dist/esm/page-agent-core.js",
@@ -45,7 +45,7 @@
     "dependencies": {
         "chalk": "^5.6.2",
         "zod": "^4.3.5",
-        "@page-agent/llms": "1.1.2",
+        "@page-agent/llms": "1.3.0",
-        "@page-agent/page-controller": "1.1.2"
+        "@page-agent/page-controller": "1.3.0"
     }
 }

packages/core/src/PageAgentCore.ts

@@ -3,7 +3,7 @@
  * All rights reserved.
  */
 import { InvokeError, LLM, type Tool } from '@page-agent/llms'
-import type { PageController } from '@page-agent/page-controller'
+import type { BrowserState, PageController } from '@page-agent/page-controller'
 import chalk from 'chalk'
 import * as zod from 'zod'
 
@@ -21,16 +21,25 @@ import type {
 	MacroToolInput,
 	MacroToolResult,
 } from './types'
-import { assert, normalizeResponse, trimLines, uid, waitFor } from './utils'
+import { assert, normalizeResponse, uid, waitFor } from './utils'
 
 export { type PageAgentConfig }
 export { tool, type PageAgentTool } from './tools'
 export type * from './types'
 
 /**
- * AI agent for browser DOM automation.
+ * AI agent for browser automation.
  *
  * @remarks
+ * ## Re-act Agent Loop
+ * - step
+ *    - observe (gather information about current environment and context)
+ *    - think (LLM calling)
+ *      - reflection (evaluate history, generate memory, short-term planning)
+ *      - action (give the action to approach the next goal)
+ *    - act (execute the action)
+ * - loop
+ *
  * ## Event System
  * - `statuschange` - Agent status transitions (idle → running → completed/error)
  * - `historychange` - History events updated (persistent, part of agent memory)
@@ -49,14 +58,18 @@ export type * from './types'
  *    - Types: thinking, executing, executed, retrying, error
  */
 export class PageAgentCore extends EventTarget {
-	config: PageAgentConfig & { maxSteps: number }
+	readonly id = uid()
-	id = uid()
+	readonly config: PageAgentConfig & { maxSteps: number }
-	tools: typeof tools
+	readonly tools: typeof tools
+	/** PageController for DOM operations */
+	readonly pageController: PageController
+
 	task = ''
 	taskId = ''
-
+	/** History events */
-	/** Agent execution status */
+	history: HistoricalEvent[] = []
-	#status: AgentStatus = 'idle'
+	/** Whether this agent has been disposed */
+	disposed = false
 
 	/**
 	 * Callback for when agent needs user input (ask_user tool)
@@ -65,23 +78,21 @@ export class PageAgentCore extends EventTarget {
 	 */
 	onAskUser?: (question: string) => Promise<string>
 
+	#status: AgentStatus = 'idle'
 	#llm: LLM
 	#abortController = new AbortController()
+	#observations: string[] = []
 
-	/** PageController for DOM operations */
+	/** internal states during a single task execution */
-	pageController: PageController
+	#states = {
-
+		/** Accumulated wait time in seconds */
-	/** Runtime states for tracking across steps */
-	states = {
-		/** Accumulated wait time in seconds, used by wait tool */
 		totalWaitTime: 0,
-		/** Last known URL for detecting navigation */
+		/** For detecting navigation */
 		lastURL: '',
+		/** Browser state */
+		browserState: null as BrowserState | null,
 	}
 
-	/** History events */
-	history: HistoricalEvent[] = []
-
 	constructor(config: PageAgentConfig & { pageController: PageController }) {
 		super()
 
@@ -165,15 +176,24 @@ export class PageAgentCore extends EventTarget {
 	}
 
 	/**
-	 * Push a persistent observation to the history event stream.
+	 * Push a observation message to the history event stream.
-	 * This will be visible in <agent_history> and remain in memory across steps.
+	 * This will be visible in <agent_history> and remain persistent in memory across steps.
+	 * @experimental @internal
+	 * @note history change will be emitted before next step starts
 	 */
 	pushObservation(content: string): void {
-		this.history.push({ type: 'observation', content })
+		this.#observations.push(content)
-		this.#emitHistoryChange()
+	}
+
+	/** Stop the current task. Agent remains reusable. */
+	stop() {
+		this.pageController.cleanUpHighlights()
+		this.pageController.hideMask()
+		this.#abortController.abort()
 	}
 
 	async execute(task: string): Promise<ExecutionResult> {
+		if (this.disposed) throw new Error('PageAgent has been disposed. Create a new instance.')
 		if (!task) throw new Error('Task is required')
 		this.task = task
 		this.taskId = uid()
@@ -202,11 +222,8 @@ export class PageAgentCore extends EventTarget {
 		this.#setStatus('running')
 		this.#emitHistoryChange()
 
-		// Reset states
+		// Reset internal states
-		this.states = {
+		this.#states = { totalWaitTime: 0, lastURL: '', browserState: null }
-			totalWaitTime: 0,
-			lastURL: '',
-		}
 
 		let step = 0
 
@@ -214,18 +231,16 @@ export class PageAgentCore extends EventTarget {
 			try {
 				console.group(`step: ${step}`)
 
-				await this.#generateObservations(step)
-
 				await onBeforeStep?.(this, step)
 
-				// abort
+				// observe
-				if (this.#abortController.signal.aborted) throw new Error('AbortError')
 
-				// status
+				console.log(chalk.blue.bold('👀 Observing...'))
-				console.log(chalk.blue('Thinking...'))
-				this.#emitActivity({ type: 'thinking' })
 
-				// invoke LLM
+				this.#states.browserState = await this.pageController.getBrowserState()
+				await this.#handleObservations(step)
+
+				// assemble prompts
 
 				const messages = [
 					{ role: 'system' as const, content: this.#getSystemPrompt() },
@@ -234,12 +249,17 @@ export class PageAgentCore extends EventTarget {
 
 				const tools = { AgentOutput: this.#packMacroTool() }
 
+				// invoke LLM
+
+				console.log(chalk.blue.bold('🧠 Thinking...'))
+				this.#emitActivity({ type: 'thinking' })
+
 				const result = await this.#llm.invoke(messages, tools, this.#abortController.signal, {
 					toolChoiceName: 'AgentOutput',
 					normalizeResponse,
 				})
 
-				// assemble history event
+				// assemble history
 
 				const macroResult = result.toolResult as MacroToolResult
 				const input = macroResult.input
@@ -271,7 +291,6 @@ export class PageAgentCore extends EventTarget {
 
 				await onAfterStep?.(this, this.history)
 
-				console.log(chalk.green('Step finished:'), actionName)
 				console.groupEnd()
 
 				// finish task if done
@@ -291,9 +310,13 @@ export class PageAgentCore extends EventTarget {
 				}
 			} catch (error: unknown) {
 				console.groupEnd() // to prevent nested groups
+				const isAbortError = (error as any)?.rawError?.name === 'AbortError'
+
 				console.error('Task failed', error)
-				const errorMessage = String(error)
+				const errorMessage = isAbortError ? 'Task stopped' : String(error)
 				this.#emitActivity({ type: 'error', message: errorMessage })
+				this.history.push({ type: 'error', message: errorMessage, rawResponse: error })
+				this.#emitHistoryChange()
 				this.#onDone(false)
 				const result: ExecutionResult = {
 					success: false,
@@ -306,10 +329,13 @@ export class PageAgentCore extends EventTarget {
 
 			step++
 			if (step > this.config.maxSteps) {
+				const errorMessage = 'Step count exceeded maximum limit'
+				this.history.push({ type: 'error', message: errorMessage })
+				this.#emitHistoryChange()
 				this.#onDone(false)
 				const result: ExecutionResult = {
 					success: false,
-					data: 'Step count exceeded maximum limit',
+					data: errorMessage,
 					history: this.history,
 				}
 				await onAfterTask?.(this, result)
@@ -347,13 +373,13 @@ export class PageAgentCore extends EventTarget {
 		})
 
 		return {
-			description: 'You MUST call this tool every step. Outputs your reflections and next action.',
+			description: 'You MUST call this tool every step!',
 			inputSchema: macroToolSchema as zod.ZodType<MacroToolInput>,
 			execute: async (input: MacroToolInput): Promise<MacroToolResult> => {
 				// abort
 				if (this.#abortController.signal.aborted) throw new Error('AbortError')
 
-				console.log(chalk.blue.bold('MacroTool execute'), input)
+				console.log(chalk.blue.bold('MacroTool input'), input)
 				const action = input.action
 
 				const toolName = Object.keys(action)[0]
@@ -374,7 +400,7 @@ export class PageAgentCore extends EventTarget {
 
 				// Find the corresponding tool
 				const tool = tools.get(toolName)
-				assert(tool, `Tool ${toolName} not found. (@note should have been caught before this!!!)`)
+				assert(tool, `Tool ${toolName} not found`)
 
 				console.log(chalk.blue.bold(`Executing tool: ${toolName}`), toolInput)
 
@@ -398,9 +424,11 @@ export class PageAgentCore extends EventTarget {
 					duration,
 				})
 
-				// Reset wait time for non-wait tools
+				// counting wait time
-				if (toolName !== 'wait') {
+				if (toolName === 'wait') {
-					this.states.totalWaitTime = 0
+					this.#states.totalWaitTime += toolInput?.seconds || 0
+				} else {
+					this.#states.totalWaitTime = 0
 				}
 
 				// Return structured result
@@ -430,17 +458,17 @@ export class PageAgentCore extends EventTarget {
 	}
 
 	/**
-	 * Get instructions from config and format as XML block
+	 * Get instructions from config
 	 */
 	async #getInstructions(): Promise<string> {
 		const { instructions } = this.config
 		if (!instructions) return ''
 
 		const systemInstructions = instructions.system?.trim()
-		const url = await this.pageController.getCurrentUrl()
 		let pageInstructions: string | undefined
 
-		if (instructions.getPageInstructions) {
+		const url = this.#states.browserState?.url || ''
+		if (instructions.getPageInstructions && url) {
 			try {
 				pageInstructions = instructions.getPageInstructions(url)?.trim()
 			} catch (error) {
@@ -468,23 +496,28 @@ export class PageAgentCore extends EventTarget {
 	}
 
 	/**
-	 * Generate observations before each step
+	 * Generate system observations before each step
-	 * - URL change detection
-	 * - Too many steps warning
 	 * @todo loop detection
 	 * @todo console error
 	 */
-	async #generateObservations(stepCount: number): Promise<void> {
+	async #handleObservations(step: number): Promise<void> {
+		// Accumulated wait time warning
+		if (this.#states.totalWaitTime >= 3) {
+			this.pushObservation(
+				`You have waited ${this.#states.totalWaitTime} seconds accumulatively. DO NOT wait any longer unless you have a good reason.`
+			)
+		}
+
 		// Detect URL change
-		const currentURL = await this.pageController.getCurrentUrl()
+		const currentURL = this.#states.browserState?.url || ''
-		if (currentURL !== this.states.lastURL) {
+		if (currentURL !== this.#states.lastURL) {
 			this.pushObservation(`Page navigated to → ${currentURL}`)
-			this.states.lastURL = currentURL
+			this.#states.lastURL = currentURL
 			await waitFor(0.5) // wait for page to stabilize
 		}
 
-		// Warn about remaining steps
+		// Remaining steps warning
-		const remaining = this.config.maxSteps - stepCount
+		const remaining = this.config.maxSteps - step
 		if (remaining === 5) {
 			this.pushObservation(
 				`⚠️ Only ${remaining} steps remaining. Consider wrapping up or calling done with partial results.`
@@ -494,12 +527,25 @@ export class PageAgentCore extends EventTarget {
 				`⚠️ Critical: Only ${remaining} steps left! You must finish the task or call done immediately.`
 			)
 		}
+
+		// Push observations to history and emit
+		if (this.#observations.length > 0) {
+			for (const content of this.#observations) {
+				this.history.push({ type: 'observation', content })
+				console.log(chalk.cyan('Observation:'), content)
+			}
+			this.#observations = []
+			this.#emitHistoryChange()
+		}
 	}
 
 	async #assembleUserPrompt(): Promise<string> {
+		const browserState = this.#states.browserState!
+
 		let prompt = ''
 
 		// <instructions> (optional)
+
 		prompt += await this.#getInstructions()
 
 		// <agent_state>
@@ -509,38 +555,36 @@ export class PageAgentCore extends EventTarget {
 
 		const stepCount = this.history.filter((e) => e.type === 'step').length
 
-		prompt += `<agent_state>
+		prompt += '<agent_state>\n'
-			<user_request>
+		prompt += '<user_request>\n'
-			${this.task}
+		prompt += `${this.task}\n`
-			</user_request>
+		prompt += '</user_request>\n'
-			<step_info>
+		prompt += '<step_info>\n'
-			Step ${stepCount + 1} of ${this.config.maxSteps} max possible steps
+		prompt += `Step ${stepCount + 1} of ${this.config.maxSteps} max possible steps\n`
-			Current date and time: ${new Date().toLocaleString()}
+		prompt += `Current time: ${new Date().toLocaleString()}\n`
-			</step_info>
+		prompt += '</step_info>\n'
-			</agent_state>
+		prompt += '</agent_state>\n\n'
-		`
 
 		// <agent_history>
 		//  - <step_N> for steps
 		//  - <sys> for observations and system messages
 
-		prompt += '\n<agent_history>\n'
+		prompt += '<agent_history>\n'
 
 		let stepIndex = 0
 		for (const event of this.history) {
 			if (event.type === 'step') {
 				stepIndex++
-				prompt += `<step_${stepIndex}>
+				prompt += `<step_${stepIndex}>\n`
-				Evaluation of Previous Step: ${event.reflection.evaluation_previous_goal}
+				prompt += `Evaluation of Previous Step: ${event.reflection.evaluation_previous_goal}\n`
-				Memory: ${event.reflection.memory}
+				prompt += `Memory: ${event.reflection.memory}\n`
-				Next Goal: ${event.reflection.next_goal}
+				prompt += `Next Goal: ${event.reflection.next_goal}\n`
-				Action Results: ${event.action.output}
+				prompt += `Action Results: ${event.action.output}\n`
-				</step_${stepIndex}>
+				prompt += `</step_${stepIndex}>\n`
-			`
 			} else if (event.type === 'observation') {
 				prompt += `<sys>${event.content}</sys>\n`
 			} else if (event.type === 'user_takeover') {
-				prompt += `<sys>User took over control and made changes to the page.</sys>\n`
+				prompt += `<sys>User took over control and made changes to the page</sys>\n`
 			} else if (event.type === 'error') {
 				// Error events are mainly for panel rendering, not included in LLM context
 				// to avoid polluting the agent's reasoning with transient errors
@@ -551,9 +595,18 @@ export class PageAgentCore extends EventTarget {
 
 		// <browser_state>
 
-		prompt += await this.#getBrowserState()
+		let pageContent = browserState.content
+		if (this.config.transformPageContent) {
+			pageContent = await this.config.transformPageContent(pageContent)
+		}
 
-		return trimLines(prompt)
+		prompt += '<browser_state>\n'
+		prompt += browserState.header + '\n'
+		prompt += pageContent + '\n'
+		prompt += browserState.footer + '\n\n'
+		prompt += '</browser_state>\n\n'
+
+		return prompt
 	}
 
 	#onDone(success = true) {
@@ -563,25 +616,9 @@ export class PageAgentCore extends EventTarget {
 		this.#abortController.abort()
 	}
 
-	async #getBrowserState(): Promise<string> {
-		const state = await this.pageController.getBrowserState()
-
-		let content = state.content
-		if (this.config.transformPageContent) {
-			content = await this.config.transformPageContent(content)
-		}
-
-		return trimLines(`<browser_state>
-			${state.header}
-			${content}
-			${state.footer}
-			
-			</browser_state>
-		`)
-	}
-
 	dispose() {
 		console.log('Disposing PageAgent...')
+		this.disposed = true
 		this.pageController.dispose()
 		// this.history = []
 		this.#abortController.abort()

packages/core/src/prompts/system_prompt.md

@@ -128,7 +128,6 @@ Exhibit the following reasoning patterns to successfully achieve the <user_reque
 Here are examples of good output patterns. Use them as reference but never copy them directly.
 
 <evaluation_examples>
-- Positive Examples:
 "evaluation_previous_goal": "Successfully navigated to the product page and found the target information. Verdict: Success"
 "evaluation_previous_goal": "Clicked the login button and user authentication form appeared. Verdict: Success"
 </evaluation_examples>
@@ -139,7 +138,6 @@ Here are examples of good output patterns. Use them as reference but never copy
 
 <next_goal_examples>
 "next_goal": "Click on the 'Add to Cart' button to proceed with the purchase flow."
-"next_goal": "Extract details from the first item on the page."
 </next_goal_examples>
 </examples>
 

packages/core/src/tools/index.ts

@@ -31,14 +31,13 @@ tools.set(
 	'done',
 	tool({
 		description:
-			'Complete task - provide a summary of results for the user. Set success=True if task completed successfully, false otherwise. Text should be your response to the user summarizing results.',
+			'Complete task. Text is your final response to the user — keep it concise unless the user explicitly asks for detail.',
 		inputSchema: zod.object({
 			text: zod.string(),
 			success: zod.boolean().default(true),
 		}),
 		execute: async function (this: PageAgentCore, input) {
 			// @note main loop will handle this one
-			// this.onDone(input.text, input.success)
 			return Promise.resolve('Task completed')
 		},
 	})
@@ -47,25 +46,17 @@ tools.set(
 tools.set(
 	'wait',
 	tool({
-		description:
+		description: 'Wait for x seconds. Can be used to wait until the page or data is fully loaded.',
-			'Wait for x seconds. default 1s (max 10 seconds, min 1 second). This can be used to wait until the page or data is fully loaded.',
 		inputSchema: zod.object({
 			seconds: zod.number().min(1).max(10).default(1),
 		}),
 		execute: async function (this: PageAgentCore, input) {
+			// try to subtract LLM calling time from the actual wait time
 			const lastTimeUpdate = await this.pageController.getLastUpdateTime()
 			const actualWaitTime = Math.max(0, input.seconds - (Date.now() - lastTimeUpdate) / 1000)
 			console.log(`actualWaitTime: ${actualWaitTime} seconds`)
 			await waitFor(actualWaitTime)
 
-			this.states.totalWaitTime += input.seconds
-
-			if (this.states.totalWaitTime >= 3) {
-				this.pushObservation(
-					`You have waited ${this.states.totalWaitTime} seconds accumulatively. Do NOT wait any longer unless you have a good reason.`
-				)
-			}
-
 			return `✅ Waited for ${input.seconds} seconds.`
 		},
 	})
@@ -106,7 +97,7 @@ tools.set(
 tools.set(
 	'input_text',
 	tool({
-		description: 'Click and input text into a input interactive element',
+		description: 'Click and type text into an interactive input element',
 		inputSchema: zod.object({
 			index: zod.int().min(0),
 			text: zod.string(),
@@ -140,8 +131,7 @@ tools.set(
 tools.set(
 	'scroll',
 	tool({
-		description:
+		description: 'Scroll the page vertically. Use index for scroll elements (dropdowns/custom UI).',
-			'Scroll the page by specified number of pages (set down=True to scroll down, down=False to scroll up, num_pages=number of pages to scroll like 0.5 for half page, 1.0 for one page, etc.). Optional index parameter to scroll within a specific element or its scroll container (works well for dropdowns and custom UI components). Optional pixels parameter to scroll by a specific number of pixels instead of pages.',
 		inputSchema: zod.object({
 			down: zod.boolean().default(true),
 			num_pages: zod.number().min(0).max(10).optional().default(0.1),
@@ -158,11 +148,14 @@ tools.set(
 	})
 )
 
+/**
+ * @todo Tables need a dedicated parser to extract structured data. This tool is useless.
+ */
 tools.set(
 	'scroll_horizontally',
 	tool({
 		description:
-			'Scroll the page or element horizontally (set right=True to scroll right, right=False to scroll left, pixels=number of pixels to scroll). Optional index parameter to scroll within a specific element or its scroll container (works well for wide tables).',
+			'Scroll the page horizontally, or within a specific element by index. Useful for wide tables.',
 		inputSchema: zod.object({
 			right: zod.boolean().default(true),
 			pixels: zod.number().int().min(0),
@@ -190,8 +183,6 @@ tools.set(
 	})
 )
 
-// @todo get_dropdown_options
-// @todo select_dropdown_option
 // @todo send_keys
 // @todo upload_file
 // @todo go_back

packages/core/src/utils/index.ts

@@ -2,28 +2,6 @@ import chalk from 'chalk'
 
 export { normalizeResponse } from './autoFixer'
 
-/**
- * Wait until condition becomes true
- * @returns Returns when condition becomes true, throws otherwise
- * @param timeout Timeout in milliseconds, default 0 means no timeout, throws error on timeout
- */
-export async function waitUntil(check: () => boolean, timeout = 60 * 60_1000): Promise<boolean> {
-	if (check()) return true
-
-	return new Promise((resolve, reject) => {
-		const start = Date.now()
-		const interval = setInterval(() => {
-			if (check()) {
-				clearInterval(interval)
-				resolve(true)
-			} else if (Date.now() - start > timeout) {
-				clearInterval(interval)
-				reject(new Error('Timeout waiting for condition to become true'))
-			}
-		}, 100)
-	})
-}
-
 export async function waitFor(seconds: number): Promise<void> {
 	await new Promise((resolve) => setTimeout(resolve, seconds * 1000))
 }
@@ -39,15 +17,6 @@ export function truncate(text: string, maxLength: number): string {
 
 //
 
-export function trimLines(text: string): string {
-	return text
-		.split('\n')
-		.map((line) => line.trim())
-		.join('\n')
-}
-
-//
-
 export function randomID(existingIDs?: string[]): string {
 	let id = Math.random().toString(36).substring(2, 11)
 

packages/extension/docs/extension_api.md

@@ -1,12 +1,18 @@
 # Page Agent Extension API
 
-This document describes how to integrate the Page Agent browser extension into your web application.
+Integrate the Page Agent extension into your web app and trigger multi-page browser tasks from page JavaScript.
 
 ## Installation
 
 ### 1. Install the browser extension
 
-Install the Page Agent extension from the Chrome Web Store.
+Primary channel:
+
+- Chrome Web Store: https://chromewebstore.google.com/detail/page-agent-ext/akldabonmimlicnjlflnapfeklbfemhj
+
+Latest updates are often published earlier on:
+
+- GitHub Releases: https://github.com/alibaba/page-agent/releases
 
 ### 2. Install type definitions (recommended)
 
@@ -14,11 +20,19 @@ Install the Page Agent extension from the Chrome Web Store.
 npm install @page-agent/core --save-dev
 ```
 
-### 3. Set up authentication
+### 3. Authorization (Token)
 
-The extension only injects APIs when it detects a valid token in `localStorage`.
+The token allows your page JS to call the extension API (`window.PAGE_AGENT_EXT`) and execute multi-page tasks.
 
-1. Open the extension's side panel to get your authorization token
+Why token-based access is required:
+
+- The extension has broad browser permissions (page access, navigation, multi-tab control).
+- If abused, it can harm user privacy and security.
+- Users must explicitly provide the token only to applications they trust.
+
+Setup:
+
+1. Open the extension side panel and copy your auth token.
 2. Set the token in your page:
 
 ```typescript
@@ -60,36 +74,36 @@ if (await waitForExtension()) {
 
 ## Global API
 
-The extension injects the following APIs into the `window` object:
+After token match, the extension injects APIs into `window`.
 
 ### `window.PAGE_AGENT_EXT_VERSION`
 
-Extension version string (e.g., `"1.0.0"`). This is exposed separately to allow version checking before accessing the main API object.
+Extension version string (for capability checks before using the main API).
 
 ### `window.PAGE_AGENT_EXT`
 
-Main API namespace object containing:
+Main namespace object.
 
 #### `PAGE_AGENT_EXT.execute(task, config)`
 
-Execute an agent task.
+Execute one agent task.
 
-**Parameters:**
+Parameters:
 
 | Name | Type | Required | Description |
-|------|------|----------|-------------|
+| ---- | ---- | -------- | ----------- |
 | `task` | `string` | Yes | Task description |
-| `config` | `ExecuteConfig` | Yes | Execution configuration (LLM settings, options, and event callbacks) |
+| `config` | `ExecuteConfig` | Yes | LLM settings, options, and callbacks |
 
-**Returns:** `Promise<ExecutionResult>`
+Returns: `Promise<ExecutionResult>`
 
-#### `PAGE_AGENT_EXT.dispose()`
+#### `PAGE_AGENT_EXT.stop()`
 
-Stop and destroy the current running agent.
+Stop the current task.
 
 ## Types
 
-Install `@page-agent/core` for full type definitions:
+Install `@page-agent/core` for complete types:
 
 ```typescript
 import type {
@@ -104,35 +118,24 @@ export interface ExecuteConfig {
   apiKey: string
   model: string
 
-  /**
+  // Include the initial tab where page JS starts. Default: true.
-   * Whether to include the initial tab (that holds this main world script) in the task.
-   * @default true
-   */
   includeInitialTab?: boolean
 
   onStatusChange?: (status: AgentStatus) => void
   onActivity?: (activity: AgentActivity) => void
   onHistoryUpdate?: (history: HistoricalEvent[]) => void
-  onDispose?: () => void
 }
 
 export type Execute = (task: string, config: ExecuteConfig) => Promise<ExecutionResult>
 ```
 
-### AgentStatus
+`AgentStatus`
 
 ```typescript
 type AgentStatus = 'idle' | 'running' | 'completed' | 'error'
 ```
 
-| Status | Description |
+`AgentActivity`
-|--------|-------------|
-| `idle` | Agent is idle, ready to execute |
-| `running` | Agent is executing a task |
-| `completed` | Task completed successfully |
-| `error` | Task failed with an error |
-
-### AgentActivity
 
 ```typescript
 type AgentActivity =
@@ -143,15 +146,7 @@ type AgentActivity =
   | { type: 'error'; message: string }
 ```
 
-| Type | Description |
+`HistoricalEvent`
-|------|-------------|
-| `thinking` | Agent is analyzing the page and planning |
-| `executing` | Agent is executing a tool action |
-| `executed` | Tool execution completed |
-| `retrying` | Retrying after a failure |
-| `error` | An error occurred |
-
-### HistoricalEvent
 
 ```typescript
 type HistoricalEvent =
@@ -162,7 +157,7 @@ type HistoricalEvent =
   | { type: 'error'; message: string; rawResponse?: unknown }
 ```
 
-### ExecutionResult
+`ExecutionResult`
 
 ```typescript
 interface ExecutionResult {
@@ -183,81 +178,22 @@ const result = await window.PAGE_AGENT_EXT!.execute(
     baseURL: 'https://api.openai.com/v1',
     apiKey: process.env.OPENAI_API_KEY!,
     model: 'gpt-5.2',
-  }
+    includeInitialTab: false, // Optional: exclude current tab
-)
+    onStatusChange: (status) => console.log(status),
-
+    onActivity: (activity) => console.log(activity),
-if (result.success) {
-  console.log('Task completed:', result.data)
-} else {
-  console.error('Task failed')
-}
-```
-
-### Exclude Initial Tab
-
-By default, the agent includes the initial tab (where the script runs) in the task. Set `includeInitialTab: false` to exclude it:
-
-```typescript
-const result = await window.PAGE_AGENT_EXT!.execute(
-  'Open a new tab and search for page-agent on GitHub',
-  {
-    baseURL: 'https://api.openai.com/v1',
-    apiKey: process.env.OPENAI_API_KEY!,
-    model: 'gpt-5.2',
-    includeInitialTab: false,  // Agent will open new tabs only
   }
 )
 ```
 
-### With Event Callbacks
+### Stop the Current Task
 
 ```typescript
-await window.PAGE_AGENT_EXT!.execute('Navigate to the settings page', {
+window.PAGE_AGENT_EXT!.stop()
-  baseURL: 'https://api.openai.com/v1',
-  apiKey: process.env.OPENAI_API_KEY!,
-  model: 'gpt-5.2',
-  onStatusChange: (status) => {
-    updateUI({ agentStatus: status })
-  },
-  onActivity: (activity) => {
-    switch (activity.type) {
-      case 'thinking':
-        showSpinner('Agent is thinking...')
-        break
-      case 'executing':
-        showSpinner(`Executing: ${activity.tool}`)
-        break
-      case 'executed':
-        log(`${activity.tool} completed in ${activity.duration}ms`)
-        break
-      case 'error':
-        showError(activity.message)
-        break
-    }
-  },
-  onHistoryUpdate: (history) => {
-    renderHistory(history)
-  },
-})
-```
-
-### Stop Execution
-
-```typescript
-// Start a task
-window.PAGE_AGENT_EXT!.execute('Scroll through all pages', {
-  baseURL: 'https://api.openai.com/v1',
-  apiKey: process.env.OPENAI_API_KEY!,
-  model: 'gpt-5.2',
-})
-
-// Later, stop it
-window.PAGE_AGENT_EXT!.dispose()
 ```
 
 ## Window Type Declaration
 
-If not using `@page-agent/core`, add this to your project:
+If you are not importing `@page-agent/core`, add:
 
 ```typescript
 import type {
@@ -275,7 +211,6 @@ interface ExecuteConfig {
   onStatusChange?: (status: AgentStatus) => void
   onActivity?: (activity: AgentActivity) => void
   onHistoryUpdate?: (history: HistoricalEvent[]) => void
-  onDispose?: () => void
 }
 
 declare global {
@@ -283,8 +218,8 @@ declare global {
     PAGE_AGENT_EXT_VERSION?: string
     PAGE_AGENT_EXT?: {
       version: string
-      execute: (task: string, config: ExecuteConfig) => Promise<ExecutionResult>
+      execute: Execute
-      dispose: () => void
+      stop: () => void
     }
   }
 }

packages/extension/docs/extension_api_zh.md

@@ -1,12 +1,18 @@
 # Page Agent 浏览器插件 API
 
-本文档介绍如何在网页应用中接入 Page Agent 浏览器插件。
+在你的网页应用中接入 Page Agent 插件，并通过页面 JavaScript 发起多页面浏览器任务。
 
 ## 安装
 
 ### 1. 安装浏览器插件
 
-从 Chrome 应用商店安装 Page Agent 插件。
+首选渠道：
+
+- Chrome 应用商店：https://chromewebstore.google.com/detail/page-agent-ext/akldabonmimlicnjlflnapfeklbfemhj
+
+通常更快提供最新构建的渠道：
+
+- GitHub Releases：https://github.com/alibaba/page-agent/releases
 
 ### 2. 安装类型定义（推荐）
 
@@ -14,11 +20,19 @@
 npm install @page-agent/core --save-dev
 ```
 
-### 3. 配置认证
+### 3. 授权（Token）
 
-插件在页面加载后检测 `localStorage` 中的 token，匹配时才会注入 API。
+token 用于让页面 JS 调用扩展 API（`window.PAGE_AGENT_EXT`）并执行多页面任务。
 
-1. 打开插件的侧边栏面板，获取授权 token
+为什么必须使用 token：
+
+- 插件具备较广的浏览器权限（页面访问、导航、多标签控制）。
+- 若被滥用，可能危害用户隐私与安全。
+- 用户必须主动将 token 提供给其信任的应用。
+
+配置步骤：
+
+1. 在扩展侧边栏中复制 auth token。
 2. 在页面中设置 token：
 
 ```typescript
@@ -60,32 +74,32 @@ if (await waitForExtension()) {
 
 ## 全局 API
 
-插件在 `window` 对象上注入以下 API：
+token 匹配后，插件会在 `window` 上注入 API。
 
 ### `window.PAGE_AGENT_EXT_VERSION`
 
-插件版本号字符串（例如 `"1.0.0"`）。单独暴露版本号，方便在访问主 API 对象前进行版本检查。
+插件版本号字符串，可用于在访问主 API 前做能力检查。
 
 ### `window.PAGE_AGENT_EXT`
 
-主 API 命名空间对象，包含：
+主命名空间对象。
 
 #### `PAGE_AGENT_EXT.execute(task, config)`
 
 执行 Agent 任务。
 
-**参数：**
+参数：
 
 | 名称 | 类型 | 必填 | 说明 |
-|------|------|------|------|
+| ---- | ---- | ---- | ---- |
 | `task` | `string` | 是 | 任务描述 |
-| `config` | `ExecuteConfig` | 是 | 执行配置（LLM 设置、选项和事件回调） |
+| `config` | `ExecuteConfig` | 是 | LLM 设置、执行选项和回调 |
 
-**返回：** `Promise<ExecutionResult>`
+返回：`Promise<ExecutionResult>`
 
-#### `PAGE_AGENT_EXT.dispose()`
+#### `PAGE_AGENT_EXT.stop()`
 
-停止并销毁当前运行的 Agent。
+停止当前任务。
 
 ## 类型定义
 
@@ -104,35 +118,24 @@ export interface ExecuteConfig {
   apiKey: string
   model: string
 
-  /**
+  // 是否包含启动脚本所在标签页。默认 true。
-   * 是否将初始标签页（运行此脚本的页面）包含在任务中。
-   * @default true
-   */
   includeInitialTab?: boolean
 
   onStatusChange?: (status: AgentStatus) => void
   onActivity?: (activity: AgentActivity) => void
   onHistoryUpdate?: (history: HistoricalEvent[]) => void
-  onDispose?: () => void
 }
 
 export type Execute = (task: string, config: ExecuteConfig) => Promise<ExecutionResult>
 ```
 
-### AgentStatus
+`AgentStatus`
 
 ```typescript
 type AgentStatus = 'idle' | 'running' | 'completed' | 'error'
 ```
 
-| 状态 | 说明 |
+`AgentActivity`
-|------|------|
-| `idle` | 空闲，准备执行 |
-| `running` | 正在执行任务 |
-| `completed` | 任务成功完成 |
-| `error` | 任务执行失败 |
-
-### AgentActivity
 
 ```typescript
 type AgentActivity =
@@ -143,15 +146,7 @@ type AgentActivity =
   | { type: 'error'; message: string }
 ```
 
-| 类型 | 说明 |
+`HistoricalEvent`
-|------|------|
-| `thinking` | Agent 正在分析页面并规划 |
-| `executing` | 正在执行工具操作 |
-| `executed` | 工具执行完成 |
-| `retrying` | 失败后重试 |
-| `error` | 发生错误 |
-
-### HistoricalEvent
 
 ```typescript
 type HistoricalEvent =
@@ -162,7 +157,7 @@ type HistoricalEvent =
   | { type: 'error'; message: string; rawResponse?: unknown }
 ```
 
-### ExecutionResult
+`ExecutionResult`
 
 ```typescript
 interface ExecutionResult {
@@ -183,81 +178,22 @@ const result = await window.PAGE_AGENT_EXT!.execute(
     baseURL: 'https://api.openai.com/v1',
     apiKey: process.env.OPENAI_API_KEY!,
     model: 'gpt-5.2',
-  }
+    includeInitialTab: false, // 可选：排除当前标签页
-)
+    onStatusChange: (status) => console.log(status),
-
+    onActivity: (activity) => console.log(activity),
-if (result.success) {
-  console.log('任务完成:', result.data)
-} else {
-  console.error('任务失败')
-}
-```
-
-### 排除初始标签页
-
-默认情况下，Agent 会将初始标签页（运行脚本的页面）包含在任务中。设置 `includeInitialTab: false` 可以排除它：
-
-```typescript
-const result = await window.PAGE_AGENT_EXT!.execute(
-  '打开新标签页并在 GitHub 上搜索 page-agent',
-  {
-    baseURL: 'https://api.openai.com/v1',
-    apiKey: process.env.OPENAI_API_KEY!,
-    model: 'gpt-5.2',
-    includeInitialTab: false,  // Agent 只会打开新标签页
   }
 )
 ```
 
-### 使用事件回调
+### 停止当前任务
 
 ```typescript
-await window.PAGE_AGENT_EXT!.execute('导航到设置页面', {
+window.PAGE_AGENT_EXT!.stop()
-  baseURL: 'https://api.openai.com/v1',
-  apiKey: process.env.OPENAI_API_KEY!,
-  model: 'gpt-5.2',
-  onStatusChange: (status) => {
-    updateUI({ agentStatus: status })
-  },
-  onActivity: (activity) => {
-    switch (activity.type) {
-      case 'thinking':
-        showSpinner('Agent 正在思考...')
-        break
-      case 'executing':
-        showSpinner(`正在执行: ${activity.tool}`)
-        break
-      case 'executed':
-        log(`${activity.tool} 完成，耗时 ${activity.duration}ms`)
-        break
-      case 'error':
-        showError(activity.message)
-        break
-    }
-  },
-  onHistoryUpdate: (history) => {
-    renderHistory(history)
-  },
-})
-```
-
-### 停止执行
-
-```typescript
-// 启动任务
-window.PAGE_AGENT_EXT!.execute('滚动浏览所有页面', {
-  baseURL: 'https://api.openai.com/v1',
-  apiKey: process.env.OPENAI_API_KEY!,
-  model: 'gpt-5.2',
-})
-
-// 稍后停止
-window.PAGE_AGENT_EXT!.dispose()
 ```
 
 ## Window 类型声明
 
-如果不使用 `@page-agent/core`，可以添加以下声明：
+如果你不直接引入 `@page-agent/core`，可添加以下声明：
 
 ```typescript
 import type {
@@ -275,7 +211,6 @@ interface ExecuteConfig {
   onStatusChange?: (status: AgentStatus) => void
   onActivity?: (activity: AgentActivity) => void
   onHistoryUpdate?: (history: HistoricalEvent[]) => void
-  onDispose?: () => void
 }
 
 declare global {
@@ -283,8 +218,8 @@ declare global {
     PAGE_AGENT_EXT_VERSION?: string
     PAGE_AGENT_EXT?: {
       version: string
-      execute: (task: string, config: ExecuteConfig) => Promise<ExecutionResult>
+      execute: Execute
-      dispose: () => void
+      stop: () => void
     }
   }
 }

packages/extension/package.json

@@ -1,7 +1,7 @@
 {
     "name": "@page-agent/ext",
     "private": true,
-    "version": "0.1.3",
+    "version": "0.1.5",
     "type": "module",
     "scripts": {
         "dev": "wxt",
@@ -10,23 +10,6 @@
         "postinstall": "wxt prepare"
     },
     "devDependencies": {
-        "@tailwindcss/vite": "^4.1.18",
-        "@types/chrome": "^0.1.34",
-        "@types/react": "^19.2.8",
-        "@types/react-dom": "^19.2.1",
-        "@vitejs/plugin-react-swc": "^4.1.0",
-        "@wxt-dev/module-react": "^1.1.5",
-        "react": "^19.2.4",
-        "react-dom": "^19.2.4",
-        "tailwindcss": "^4.1.14",
-        "tw-animate-css": "^1.4.0",
-        "wxt": "^0.20.13"
-    },
-    "dependencies": {
-        "@page-agent/core": "1.1.2",
-        "@page-agent/llms": "1.1.2",
-        "@page-agent/page-controller": "1.1.2",
-        "@page-agent/ui": "1.1.2",
         "@radix-ui/react-hover-card": "^1.1.15",
         "@radix-ui/react-icons": "^1.3.2",
         "@radix-ui/react-label": "^2.1.8",
@@ -34,14 +17,32 @@
         "@radix-ui/react-slot": "^1.2.4",
         "@radix-ui/react-switch": "^1.2.6",
         "@radix-ui/react-tooltip": "^1.2.8",
+        "@types/chrome": "^0.1.34",
+        "@types/react": "^19.2.13",
+        "@types/react-dom": "^19.2.1",
+        "@wxt-dev/module-react": "^1.1.5",
         "class-variance-authority": "^0.7.1",
         "clsx": "^2.1.1",
+        "idb": "^8.0.3",
         "lucide-react": "^0.563.0",
-        "motion": "^12.30.0",
+        "motion": "^12.34.0",
         "next-themes": "^0.4.6",
+        "react": "^19.2.4",
+        "react-dom": "^19.2.4",
         "rough-notation": "^0.5.1",
-        "simple-icons": "^16.7.0",
+        "simple-icons": "^16.8.0",
         "sonner": "^2.0.7",
-        "tailwind-merge": "^3.4.0"
+        "tailwind-merge": "^3.4.0",
+        "tailwindcss": "^4.1.14",
+        "tw-animate-css": "^1.4.0",
+        "wxt": "^0.20.14"
+    },
+    "dependencies": {
+        "@page-agent/core": "1.3.0",
+        "@page-agent/llms": "1.3.0",
+        "@page-agent/page-controller": "1.3.0",
+        "@page-agent/ui": "1.3.0",
+        "chalk": "^5.6.2",
+        "zod": "^4.3.5"
     }
 }

packages/extension/src/agent/MultiPageAgent.ts

@@ -74,6 +74,11 @@ export class MultiPageAgent extends PageAgentCore {
 				})
 			},
 
+			onBeforeStep: async (agent) => {
+				// make sure the current tab is loaded before the step starts
+				await tabsController.waitUntilTabLoaded(tabsController.currentTabId!)
+			},
+
 			onDispose: () => {
 				if (heartBeatInterval) {
 					window.clearInterval(heartBeatInterval)
@@ -84,8 +89,7 @@ export class MultiPageAgent extends PageAgentCore {
 					isAgentRunning: false,
 				})
 
-				// no need to dispose tabsController and pageController
+				tabsController.dispose()
-				// as they do not keep references
 			},
 		})
 	}

packages/extension/src/agent/RemotePageController.background.ts

@@ -8,13 +8,21 @@ export function handlePageControlMessage(
 	sender: chrome.runtime.MessageSender,
 	sendResponse: (response: unknown) => void
 ): true | undefined {
+	const PREFIX = '[RemotePageController.background]'
+
+	function debug(...messages: any[]) {
+		console.debug(`\x1b[90m${PREFIX}\x1b[0m`, ...messages)
+	}
+
 	const { action, payload, targetTabId } = message
 
 	if (action === 'get_my_tab_id') {
+		debug('get_my_tab_id', sender.tab?.id)
 		sendResponse({ tabId: sender.tab?.id || null })
 		return
 	}
 
+	// proxy to content script
 	chrome.tabs
 		.sendMessage(targetTabId, {
 			type: 'PAGE_CONTROL',
@@ -25,6 +33,7 @@ export function handlePageControlMessage(
 			sendResponse(result)
 		})
 		.catch((error) => {
+			console.error(PREFIX, error)
 			sendResponse({
 				success: false,
 				error: error instanceof Error ? error.message : String(error),

packages/extension/src/agent/RemotePageController.content.ts

@@ -12,10 +12,14 @@ export function initPageController() {
 		.then((response) => {
 			return (response as { tabId: number | null }).tabId
 		})
+		.catch((error) => {
+			console.error('[RemotePageController.ContentScript]: Failed to get my tab id', error)
+			return null
+		})
 
 	function getPC(): PageController {
 		if (!pageController) {
-			pageController = new PageController({ enableMask: false })
+			pageController = new PageController({ enableMask: false, viewportExpansion: 400 })
 		}
 		return pageController
 	}

packages/extension/src/agent/RemotePageController.ts

@@ -2,13 +2,31 @@ import type { BrowserState } from '@page-agent/page-controller'
 
 import type { TabsController } from './TabsController'
 
+const PREFIX = '[RemotePageController]'
+
+function debug(...messages: any[]) {
+	console.debug(`\x1b[90m${PREFIX}\x1b[0m`, ...messages)
+}
+
+function sendMessage(message: {
+	type: 'PAGE_CONTROL'
+	action: string
+	targetTabId: number
+	payload?: any
+}): Promise<any> {
+	return chrome.runtime.sendMessage(message).catch((error) => {
+		console.error(PREFIX, message.action, error)
+		return null
+	})
+}
+
 /**
  * Agent side page controller.
  * - live in the agent env (extension page or content script)
  * - communicates with remote PageController via sw
  */
 export class RemotePageController {
-	private tabsController: TabsController
+	tabsController: TabsController
 
 	constructor(tabsController: TabsController) {
 		this.tabsController = tabsController
@@ -18,46 +36,46 @@ export class RemotePageController {
 		return this.tabsController.currentTabId
 	}
 
-	async getCurrentUrl(): Promise<string> {
+	private async getCurrentUrl(): Promise<string> {
 		if (!this.currentTabId) return ''
 		const { url } = await this.tabsController.getTabInfo(this.currentTabId)
 		return url || ''
 	}
 
-	async getCurrentTitle(): Promise<string> {
+	private async getCurrentTitle(): Promise<string> {
 		if (!this.currentTabId) return ''
 		const { title } = await this.tabsController.getTabInfo(this.currentTabId)
 		return title || ''
 	}
 
-	get currentTabTitle(): Promise<string> {
-		return this.getCurrentTitle()
-	}
-
 	async getLastUpdateTime(): Promise<number> {
 		if (!this.currentTabId) throw new Error('tabsController not initialized.')
-
+		return sendMessage({
-		return await chrome.runtime.sendMessage({
 			type: 'PAGE_CONTROL',
 			action: 'get_last_update_time',
 			targetTabId: this.currentTabId,
 		})
 	}
 
-	// getBrowserState
 	async getBrowserState(): Promise<BrowserState> {
-		let browserState = {} as BrowserState
+		if (!this.currentTabId) throw new Error('tabsController not initialized.')
 
-		if (!this.currentTabId || !isContentScriptAllowed(await this.currentTabUrl)) {
+		let browserState = {} as BrowserState
+		debug('getBrowserState', this.currentTabId)
+
+		const currentUrl = await this.getCurrentUrl()
+		const currentTitle = await this.getCurrentTitle()
+
+		if (!this.currentTabId || !isContentScriptAllowed(currentUrl)) {
 			browserState = {
-				url: await this.currentTabUrl,
+				url: currentUrl,
-				title: await this.currentTabTitle,
+				title: currentTitle,
 				header: '',
-				content: '(empty page)',
+				content: '(empty page. either current page is not readable or not loaded yet.)',
 				footer: '',
 			}
 		} else {
-			browserState = await chrome.runtime.sendMessage({
+			browserState = await sendMessage({
 				type: 'PAGE_CONTROL',
 				action: 'get_browser_state',
 				targetTabId: this.currentTabId,
@@ -67,61 +85,58 @@ export class RemotePageController {
 		const sum = await this.tabsController.summarizeTabs()
 		browserState.header = sum + '\n\n' + (browserState.header || '')
 
+		debug('getBrowserState: success', this.currentTabId, browserState)
+
 		return browserState
 	}
 
-	// updateTree
 	async updateTree(): Promise<void> {
-		if (!this.currentTabId || !isContentScriptAllowed(await this.currentTabUrl)) {
+		if (!this.currentTabId || !isContentScriptAllowed(await this.getCurrentUrl())) {
 			return
 		}
 
-		await chrome.runtime.sendMessage({
+		await sendMessage({
 			type: 'PAGE_CONTROL',
 			action: 'update_tree',
 			targetTabId: this.currentTabId,
 		})
 	}
 
-	// cleanUpHighlights
 	async cleanUpHighlights(): Promise<void> {
-		if (!this.currentTabId || !isContentScriptAllowed(await this.currentTabUrl)) {
+		if (!this.currentTabId || !isContentScriptAllowed(await this.getCurrentUrl())) {
 			return
 		}
 
-		await chrome.runtime.sendMessage({
+		await sendMessage({
 			type: 'PAGE_CONTROL',
 			action: 'clean_up_highlights',
 			targetTabId: this.currentTabId,
 		})
 	}
 
-	// clickElement
 	async clickElement(...args: any[]): Promise<DomActionReturn> {
-		return this.remoteCallDomAction('click_element', args)
+		const res = await this.remoteCallDomAction('click_element', args)
+		// @note may cause page navigation, wait for 1 second to ensure the page loading started
+		await new Promise((resolve) => setTimeout(resolve, 1000))
+		return res
 	}
 
-	// inputText
 	async inputText(...args: any[]): Promise<DomActionReturn> {
 		return this.remoteCallDomAction('input_text', args)
 	}
 
-	// selectOption
 	async selectOption(...args: any[]): Promise<DomActionReturn> {
 		return this.remoteCallDomAction('select_option', args)
 	}
 
-	// scroll
 	async scroll(...args: any[]): Promise<DomActionReturn> {
 		return this.remoteCallDomAction('scroll', args)
 	}
 
-	// scrollHorizontally
 	async scrollHorizontally(...args: any[]): Promise<DomActionReturn> {
 		return this.remoteCallDomAction('scroll_horizontally', args)
 	}
 
-	// executeJavascript
 	async executeJavascript(...args: any[]): Promise<DomActionReturn> {
 		return this.remoteCallDomAction('execute_javascript', args)
 	}
@@ -133,35 +148,26 @@ export class RemotePageController {
 	/** @note Managed by content script via storage polling. */
 	dispose(): void {}
 
-	private async preCheck() {
-		if (!this.currentTabId) {
-			return 'RemotePageController not initialized.'
-		}
-
-		if (!isContentScriptAllowed(await this.currentTabUrl)) {
-			return 'Operation not allowed on this page. Use open_new_tab to navigate to a web page first.'
-		}
-
-		return null
-	}
-
 	private async remoteCallDomAction(action: string, payload: any[]): Promise<DomActionReturn> {
-		const preCheckError = await this.preCheck()
+		if (!this.currentTabId) {
-		if (preCheckError) {
+			return { success: false, message: 'RemotePageController not initialized.' }
-			return { success: false, message: preCheckError }
 		}
 
-		return await chrome.runtime.sendMessage({
+		if (!isContentScriptAllowed(await this.getCurrentUrl())) {
+			return {
+				success: false,
+				message:
+					'Operation not allowed on this page. Use open_new_tab to navigate to a web page first.',
+			}
+		}
+
+		return sendMessage({
 			type: 'PAGE_CONTROL',
 			action: action,
 			targetTabId: this.currentTabId!,
 			payload,
 		})
 	}
-
-	private get currentTabUrl(): Promise<string> {
-		return this.getCurrentUrl()
-	}
 }
 
 interface DomActionReturn {

packages/extension/src/agent/TabsController.background.ts

@@ -3,6 +3,12 @@
  */
 import type { TabAction } from './TabsController'
 
+const PREFIX = '[TabsController.background]'
+
+function debug(...messages: any[]) {
+	console.debug(`\x1b[90m${PREFIX}\x1b[0m`, ...messages)
+}
+
 export function handleTabControlMessage(
 	message: { type: 'TAB_CONTROL'; action: TabAction; payload: any },
 	sender: chrome.runtime.MessageSender,
@@ -12,10 +18,12 @@ export function handleTabControlMessage(
 
 	switch (action as TabAction) {
 		case 'get_active_tab': {
+			debug('get_active_tab')
 			chrome.tabs
 				.query({ active: true, currentWindow: true })
 				.then((tabs) => {
 					const tabId = tabs.length > 0 ? tabs[0].id || null : null
+					debug('get_active_tab: success', tabId)
 					sendResponse({ success: true, tabId })
 				})
 				.catch((error) => {
@@ -25,11 +33,12 @@ export function handleTabControlMessage(
 		}
 
 		case 'get_tab_info': {
+			debug('get_tab_info', payload)
 			chrome.tabs
 				.get(payload.tabId)
 				.then((tab) => {
-					const result = { title: tab.title || '', url: tab.url || '' }
+					debug('get_tab_info: success', tab)
-					sendResponse(result)
+					sendResponse(tab)
 				})
 				.catch((error) => {
 					sendResponse({ error: error instanceof Error ? error.message : String(error) })
@@ -38,10 +47,11 @@ export function handleTabControlMessage(
 		}
 
 		case 'open_new_tab': {
+			debug('open_new_tab', payload)
 			chrome.tabs
 				.create({ url: payload.url, active: false })
 				.then((newTab) => {
-					// @todo: wait for tab to be fully loaded
+					debug('open_new_tab: success', newTab)
 					sendResponse({ success: true, tabId: newTab.id, windowId: newTab.windowId })
 				})
 				.catch((error) => {
@@ -51,20 +61,22 @@ export function handleTabControlMessage(
 		}
 
 		case 'create_tab_group': {
+			debug('create_tab_group', payload)
 			chrome.tabs
 				.group({ tabIds: payload.tabIds, createProperties: { windowId: payload.windowId } })
 				.then((groupId) => {
-					console.log('Created tab group', groupId)
+					debug('create_tab_group: success', groupId)
 					sendResponse({ success: true, groupId })
 				})
 				.catch((error) => {
-					console.error('Failed to create tab group', error)
+					console.error(PREFIX, 'Failed to create tab group', error)
 					sendResponse({ error: error instanceof Error ? error.message : String(error) })
 				})
 			return true // async response
 		}
 
 		case 'update_tab_group': {
+			debug('update_tab_group', payload)
 			chrome.tabGroups
 				.update(payload.groupId, payload.properties)
 				.then(() => {
@@ -77,6 +89,7 @@ export function handleTabControlMessage(
 		}
 
 		case 'add_tab_to_group': {
+			debug('add_tab_to_group', payload)
 			chrome.tabs
 				.group({ tabIds: payload.tabId, groupId: payload.groupId })
 				.then(() => {
@@ -89,6 +102,7 @@ export function handleTabControlMessage(
 		}
 
 		case 'close_tab': {
+			debug('close_tab', payload)
 			chrome.tabs
 				.remove(payload.tabId)
 				.then(() => {
@@ -105,3 +119,42 @@ export function handleTabControlMessage(
 			return
 	}
 }
+
+export function setupTabChangeEvents() {
+	console.log('[TabsController.background] setupTabChangeEvents')
+
+	chrome.tabs.onCreated.addListener((tab) => {
+		debug('onCreated', tab)
+		chrome.runtime
+			.sendMessage({ type: 'TAB_CHANGE', action: 'created', payload: { tab } })
+			.catch((error) => {
+				debug('onCreated error:', error)
+			})
+	})
+
+	chrome.tabs.onRemoved.addListener((tabId, removeInfo) => {
+		debug('onRemoved', tabId, removeInfo)
+		chrome.runtime
+			.sendMessage({
+				type: 'TAB_CHANGE',
+				action: 'removed',
+				payload: { tabId, removeInfo },
+			})
+			.catch((error) => {
+				debug('onRemoved error:', error)
+			})
+	})
+
+	chrome.tabs.onUpdated.addListener((tabId, changeInfo, tab) => {
+		debug('onUpdated', tabId, changeInfo)
+		chrome.runtime
+			.sendMessage({
+				type: 'TAB_CHANGE',
+				action: 'updated',
+				payload: { tabId, changeInfo, tab },
+			})
+			.catch((error) => {
+				debug('onUpdated error:', error)
+			})
+	})
+}

packages/extension/src/agent/TabsController.ts

@@ -1,3 +1,20 @@
+const PREFIX = '[TabsController]'
+
+function debug(...messages: any[]) {
+	console.debug(`\x1b[90m${PREFIX}\x1b[0m`, ...messages)
+}
+
+function sendMessage(message: {
+	type: 'TAB_CONTROL'
+	action: TabAction
+	payload?: any
+}): Promise<any> {
+	return chrome.runtime.sendMessage(message).catch((error) => {
+		console.error(PREFIX, message.action, error)
+		return null
+	})
+}
+
 /**
  * Controller for managing browser tabs.
  * - live in the agent env (extension page or content script)
@@ -13,6 +30,8 @@ export class TabsController extends EventTarget {
 	private windowId: number | null = null
 
 	async init(task: string, includeInitialTab: boolean = true) {
+		debug('init', task, includeInitialTab)
+
 		this.task = task
 		this.tabs = []
 		this.currentTabId = null
@@ -20,7 +39,7 @@ export class TabsController extends EventTarget {
 		this.initialTabId = null
 		this.windowId = null
 
-		const result = await chrome.runtime.sendMessage({
+		const result = await sendMessage({
 			type: 'TAB_CONTROL',
 			action: 'get_active_tab',
 		})
@@ -33,9 +52,20 @@ export class TabsController extends EventTarget {
 
 		if (includeInitialTab) {
 			this.currentTabId = this.initialTabId
+
+			// update tab status immediately
+			const info = await sendMessage({
+				type: 'TAB_CONTROL',
+				action: 'get_tab_info',
+				payload: { tabId: this.initialTabId },
+			})
+
 			this.tabs.push({
 				id: result.tabId,
 				isInitial: true,
+				url: info.url,
+				title: info.title,
+				status: info.status,
 			})
 		}
 
@@ -70,6 +100,14 @@ export class TabsController extends EventTarget {
 						}
 					}
 				}
+			} else if (message.action === 'updated') {
+				const { tabId, tab } = message.payload as { tabId: number; tab: chrome.tabs.Tab }
+				const targetTab = this.tabs.find((t) => t.id === tabId)
+				if (targetTab) {
+					targetTab.url = tab.url
+					targetTab.title = tab.title
+					targetTab.status = tab.status
+				}
 			}
 		}
 
@@ -80,8 +118,10 @@ export class TabsController extends EventTarget {
 		})
 	}
 
-	async openNewTab(url: string): Promise<{ success: boolean; tabId: number; message: string }> {
+	async openNewTab(url: string): Promise<string> {
-		const result = await chrome.runtime.sendMessage({
+		debug('openNewTab', url)
+
+		const result = await sendMessage({
 			type: 'TAB_CONTROL',
 			action: 'open_new_tab',
 			payload: { url },
@@ -104,7 +144,7 @@ export class TabsController extends EventTarget {
 		await this.switchToTab(tabId)
 
 		if (!this.tabGroupId) {
-			const result = await chrome.runtime.sendMessage({
+			const result = await sendMessage({
 				type: 'TAB_CONTROL',
 				action: 'create_tab_group',
 				payload: { tabIds: [tabId], windowId: this.windowId },
@@ -118,7 +158,7 @@ export class TabsController extends EventTarget {
 
 			this.tabGroupId = groupId
 
-			await chrome.runtime.sendMessage({
+			await sendMessage({
 				type: 'TAB_CONTROL',
 				action: 'update_tab_group',
 				payload: {
@@ -131,57 +171,43 @@ export class TabsController extends EventTarget {
 				},
 			})
 		} else {
-			await chrome.runtime.sendMessage({
+			await sendMessage({
 				type: 'TAB_CONTROL',
 				action: 'add_tab_to_group',
 				payload: { tabId: result.tabId, groupId: this.tabGroupId },
 			})
 		}
 
-		// wait for the new tab to be fully loaded
+		await this.waitUntilTabLoaded(tabId)
-		// @todo
-		await new Promise((resolve) => setTimeout(resolve, 500))
 
-		return {
+		return `✅ Opened new tab ID ${tabId} with URL ${url}`
-			success: true,
-			tabId,
-			message: `Opened new tab ID ${tabId} with URL ${url}`,
-		}
 	}
 
-	async switchToTab(tabId: number): Promise<{ success: boolean; message: string }> {
+	async switchToTab(tabId: number): Promise<string> {
+		debug('switchToTab', tabId)
+
 		const targetTab = this.tabs.find((t) => t.id === tabId)
 		if (!targetTab) {
-			return {
+			throw new Error(`Tab ID ${tabId} not found in tab list.`)
-				success: false,
-				message: `Tab ID ${tabId} not found in tab list.`,
-			}
 		}
 
 		await this.updateCurrentTabId(tabId)
 
-		return {
+		return `✅ Switched to tab ID ${tabId}.`
-			success: true,
-			message: `Switched to tab ID ${tabId}.`,
-		}
 	}
 
-	async closeTab(tabId: number): Promise<{ success: boolean; message: string }> {
+	async closeTab(tabId: number): Promise<string> {
+		debug('closeTab', tabId)
+
 		const targetTab = this.tabs.find((t) => t.id === tabId)
 		if (!targetTab) {
-			return {
+			throw new Error(`Tab ID ${tabId} not found in tab list.`)
-				success: false,
-				message: `Tab ID ${tabId} not found in tab list.`,
-			}
 		}
 		if (targetTab.isInitial) {
-			return {
+			throw new Error(`Cannot close the initial tab ID ${tabId}.`)
-				success: false,
-				message: `Cannot close the initial tab ID ${tabId}.`,
-			}
 		}
 
-		const result = await chrome.runtime.sendMessage({
+		const result = await sendMessage({
 			type: 'TAB_CONTROL',
 			action: 'close_tab',
 			payload: { tabId },
@@ -198,29 +224,39 @@ export class TabsController extends EventTarget {
 				}
 			}
 
-			return {
+			return `✅ Closed tab ID ${tabId}.`
-				success: true,
-				message: `Closed tab ID ${tabId}.`,
-			}
 		} else {
-			return {
+			throw new Error(`Failed to close tab ID ${tabId}: ${result.error}`)
-				success: false,
-				message: `Failed to close tab ID ${tabId}: ${result.error}`,
-			}
 		}
 	}
 
 	async updateCurrentTabId(tabId: number | null) {
+		debug('updateCurrentTabId', tabId)
+
 		this.currentTabId = tabId
 		await chrome.storage.local.set({ currentTabId: tabId })
 	}
 
 	async getTabInfo(tabId: number): Promise<{ title: string; url: string }> {
-		const result = await chrome.runtime.sendMessage({
+		// use cached tab info if available
+		const tabMeta = this.tabs.find((t) => t.id === tabId)
+		if (tabMeta && tabMeta.url && tabMeta.title) {
+			return { title: tabMeta.title, url: tabMeta.url }
+		}
+
+		// otherwise, pull the latest tab info from the background script
+		debug('getTabInfo: pulling from background script', tabId)
+		const result = await sendMessage({
 			type: 'TAB_CONTROL',
 			action: 'get_tab_info',
 			payload: { tabId },
 		})
+
+		if (tabMeta) {
+			tabMeta.url = result.url
+			tabMeta.title = result.title
+		}
+
 		return result
 	}
 
@@ -239,6 +275,17 @@ export class TabsController extends EventTarget {
 		return summaries.join('\n')
 	}
 
+	async waitUntilTabLoaded(tabId: number): Promise<void> {
+		const tab = this.tabs.find((t) => t.id === tabId)
+		if (!tab) throw new Error(`Tab ID ${tabId} not found in tab list.`)
+
+		if (tab.status === 'unloaded') throw new Error(`Tab ID ${tabId} is unloaded.`)
+		if (tab.status === 'complete') return
+
+		debug('waitUntilTabLoaded', tabId)
+		await waitUntil(() => tab.status === 'complete', 4_000)
+	}
+
 	dispose() {
 		this.dispatchEvent(new Event('dispose'))
 	}
@@ -257,6 +304,9 @@ export type TabAction =
 interface TabMeta {
 	id: number
 	isInitial: boolean
+	url?: string
+	title?: string
+	status?: 'loading' | 'unloaded' | 'complete'
 }
 
 const TAB_GROUP_COLORS = [
@@ -275,3 +325,33 @@ type TabGroupColor = (typeof TAB_GROUP_COLORS)[number]
 function randomColor(): TabGroupColor {
 	return TAB_GROUP_COLORS[Math.floor(Math.random() * TAB_GROUP_COLORS.length)]
 }
+
+/**
+ * Wait until condition becomes true
+ * @returns Returns when condition becomes true, throws otherwise
+ * @param timeoutMS Timeout in milliseconds, default 1 minutes, throws error on timeout
+ * @param error Error object to reject on timeout. If not provided, will resolve with false
+ */
+export async function waitUntil(
+	check: () => boolean | Promise<boolean>,
+	timeoutMS = 60_000,
+	error?: string
+): Promise<boolean> {
+	if (await check()) return true
+
+	return new Promise((resolve, reject) => {
+		const start = Date.now()
+		const poll = async () => {
+			if (await check()) return resolve(true)
+			if (Date.now() - start > timeoutMS) {
+				if (error) {
+					return reject(new Error(error))
+				} else {
+					return resolve(false)
+				}
+			}
+			setTimeout(poll, 100)
+		}
+		setTimeout(poll, 100)
+	})
+}

packages/extension/src/agent/system_prompt.md

@@ -120,7 +120,6 @@ Exhibit the following reasoning patterns to successfully achieve the <user_reque
 Here are examples of good output patterns. Use them as reference but never copy them directly.
 
 <evaluation_examples>
-- Positive Examples:
 "evaluation_previous_goal": "Successfully navigated to the product page and found the target information. Verdict: Success"
 "evaluation_previous_goal": "Clicked the login button and user authentication form appeared. Verdict: Success"
 </evaluation_examples>
@@ -131,7 +130,6 @@ Here are examples of good output patterns. Use them as reference but never copy
 
 <next_goal_examples>
 "next_goal": "Click on the 'Add to Cart' button to proceed with the purchase flow."
-"next_goal": "Extract details from the first item on the page."
 </next_goal_examples>
 </examples>
 

packages/extension/src/agent/tabTools.ts

@@ -31,8 +31,11 @@ export function createTabTools(tabsController: TabsController): Record<string, T
 			}),
 			execute: async (input: unknown) => {
 				const { url } = input as { url: string }
-				const result = await tabsController.openNewTab(url)
+				try {
-				return result.message
+					return await tabsController.openNewTab(url)
+				} catch (error) {
+					return `❌ Failed: ${error instanceof Error ? error.message : String(error)}`
+				}
 			},
 		},
 
@@ -44,7 +47,11 @@ export function createTabTools(tabsController: TabsController): Record<string, T
 			}),
 			execute: async (input: unknown) => {
 				const { tab_id } = input as { tab_id: number }
-				return (await tabsController.switchToTab(tab_id)).message
+				try {
+					return await tabsController.switchToTab(tab_id)
+				} catch (error) {
+					return `❌ Failed: ${error instanceof Error ? error.message : String(error)}`
+				}
 			},
 		},
 
@@ -56,7 +63,11 @@ export function createTabTools(tabsController: TabsController): Record<string, T
 			}),
 			execute: async (input: unknown) => {
 				const { tab_id } = input as { tab_id: number }
-				return (await tabsController.closeTab(tab_id)).message
+				try {
+					return await tabsController.closeTab(tab_id)
+				} catch (error) {
+					return `❌ Failed: ${error instanceof Error ? error.message : String(error)}`
+				}
 			},
 		},
 	}

packages/extension/src/agent/useAgent.ts

@@ -75,7 +75,7 @@ export function useAgent(): UseAgentResult {
 
 	const execute = useCallback(async (task: string) => {
 		const agent = agentRef.current
-		console.log('Fire task:', task, agent)
+		console.log('🚀 [useAgent] start executing task:', task)
 		if (!agent) throw new Error('Agent not initialized')
 
 		setCurrentTask(task)
@@ -84,7 +84,7 @@ export function useAgent(): UseAgentResult {
 	}, [])
 
 	const stop = useCallback(() => {
-		agentRef.current?.dispose()
+		agentRef.current?.stop()
 	}, [])
 
 	const configure = useCallback(async (newConfig: LLMConfig) => {

packages/extension/src/entrypoints/background.ts

@@ -1,24 +1,13 @@
 import { handlePageControlMessage } from '@/agent/RemotePageController.background'
-import { handleTabControlMessage } from '@/agent/TabsController.background'
+import { handleTabControlMessage, setupTabChangeEvents } from '@/agent/TabsController.background'
-
-chrome.runtime.onMessage.addListener((message, sender, sendResponse): true | undefined => {
-	if (message.type === 'TAB_CONTROL') {
-		return handleTabControlMessage(message, sender, sendResponse)
-	} else if (message.type === 'PAGE_CONTROL') {
-		return handlePageControlMessage(message, sender, sendResponse)
-	} else {
-		sendResponse({ error: 'Unknown message type' })
-		return
-	}
-})
-
-// ============================================================================
-// Extension Setup
-// ============================================================================
 
 export default defineBackground(() => {
 	console.log('[Background] Service Worker started')
 
+	// tab change events
+
+	setupTabChangeEvents()
+
 	// generate user auth token
 
 	chrome.storage.local.get('PageAgentExtUserAuthToken').then((result) => {
@@ -28,21 +17,20 @@ export default defineBackground(() => {
 		chrome.storage.local.set({ PageAgentExtUserAuthToken: userAuthToken })
 	})
 
+	// message proxy
+
+	chrome.runtime.onMessage.addListener((message, sender, sendResponse): true | undefined => {
+		if (message.type === 'TAB_CONTROL') {
+			return handleTabControlMessage(message, sender, sendResponse)
+		} else if (message.type === 'PAGE_CONTROL') {
+			return handlePageControlMessage(message, sender, sendResponse)
+		} else {
+			sendResponse({ error: 'Unknown message type' })
+			return
+		}
+	})
+
 	// setup
 
 	chrome.sidePanel.setPanelBehavior({ openPanelOnActionClick: true }).catch(() => {})
-
-	// Tab change events
-
-	chrome.tabs.onCreated.addListener((tab) => {
-		chrome.runtime.sendMessage({ type: 'TAB_CHANGE', action: 'created', payload: { tab } })
-	})
-
-	chrome.tabs.onRemoved.addListener((tabId, removeInfo) => {
-		chrome.runtime.sendMessage({
-			type: 'TAB_CHANGE',
-			action: 'removed',
-			payload: { tabId, removeInfo },
-		})
-	})
 })

packages/extension/src/entrypoints/content.ts

@@ -6,7 +6,7 @@ const DEBUG_PREFIX = '[Content]'
 
 export default defineContentScript({
 	matches: ['<all_urls>'],
-	runAt: 'document_idle',
+	runAt: 'document_end',
 
 	main() {
 		console.debug(`${DEBUG_PREFIX} Loaded on ${window.location.href}`)
@@ -71,7 +71,8 @@ async function exposeAgentToPage() {
 				try {
 					const { task, config } = payload
 
-					// create when used
+					// Dispose old instance before creating new one
+					multiPageAgent?.dispose()
 
 					multiPageAgent = new MultiPageAgent(config)
 
@@ -116,17 +117,6 @@ async function exposeAgentToPage() {
 						)
 					})
 
-					multiPageAgent.addEventListener('dispose', () => {
-						window.postMessage(
-							{
-								channel: 'PAGE_AGENT_EXT_RESPONSE',
-								id,
-								action: 'dispose_event',
-							},
-							'*'
-						)
-					})
-
 					// result
 
 					const result = await multiPageAgent.execute(task)
@@ -155,9 +145,8 @@ async function exposeAgentToPage() {
 				break
 			}
 
-			case 'dispose': {
+			case 'stop': {
-				// @note stop ongoing processes but can still be re-used later
+				multiPageAgent?.stop()
-				multiPageAgent?.dispose()
 				break
 			}
 

packages/extension/src/entrypoints/main-world.ts

@@ -16,7 +16,6 @@ export interface ExecuteConfig {
 	onStatusChange?: (status: AgentStatus) => void
 	onActivity?: (activity: AgentActivity) => void
 	onHistoryUpdate?: (history: HistoricalEvent[]) => void
-	onDispose?: () => void
 }
 
 export default defineUnlistedScript(() => {
@@ -60,12 +59,6 @@ export default defineUnlistedScript(() => {
 					return
 				}
 
-				if (data.action === 'dispose_event' && config.onDispose) {
-					config.onDispose()
-					window.removeEventListener('message', handleMessage)
-					return
-				}
-
 				if (data.action !== 'execute_result') return
 
 				// execute_result
@@ -104,14 +97,14 @@ export default defineUnlistedScript(() => {
 		return promise
 	}
 
-	const dispose = () => {
+	const stop = () => {
 		const id = getId()
 
 		window.postMessage(
 			{
 				channel: 'PAGE_AGENT_EXT_REQUEST',
 				id,
-				action: 'dispose',
+				action: 'stop',
 			},
 			'*'
 		)
@@ -121,6 +114,6 @@ export default defineUnlistedScript(() => {
 	;(window as any).PAGE_AGENT_EXT = {
 		version: __EXT_VERSION__,
 		execute,
-		dispose,
+		stop,
 	}
 })

packages/extension/src/entrypoints/sidepanel/App.tsx

@@ -1,4 +1,4 @@
-import { Send, Settings, Square } from 'lucide-react'
+import { History, Send, Settings, Square } from 'lucide-react'
 import { useCallback, useEffect, useRef, useState } from 'react'
 
 import { Button } from '@/components/ui/button'
@@ -8,20 +8,47 @@ import {
 	InputGroupButton,
 	InputGroupTextarea,
 } from '@/components/ui/input-group'
+import { saveSession } from '@/lib/db'
 
 import { useAgent } from '../../agent/useAgent'
 import { ConfigPanel } from './components/ConfigPanel'
+import { HistoryDetail } from './components/HistoryDetail'
+import { HistoryList } from './components/HistoryList'
 import { ActivityCard, EventCard } from './components/cards'
 import { EmptyState, Logo, StatusDot } from './components/misc'
 
+type View =
+	| { name: 'chat' }
+	| { name: 'config' }
+	| { name: 'history' }
+	| { name: 'history-detail'; sessionId: string }
+
 export default function App() {
-	const [showConfig, setShowConfig] = useState(false)
+	const [view, setView] = useState<View>({ name: 'chat' })
 	const [inputValue, setInputValue] = useState('')
 	const historyRef = useRef<HTMLDivElement>(null)
 	const textareaRef = useRef<HTMLTextAreaElement>(null)
 
 	const { status, history, activity, currentTask, config, execute, stop, configure } = useAgent()
 
+	// Persist session when task finishes
+	const prevStatusRef = useRef(status)
+	useEffect(() => {
+		const prev = prevStatusRef.current
+		prevStatusRef.current = status
+
+		if (
+			prev === 'running' &&
+			(status === 'completed' || status === 'error') &&
+			history.length > 0 &&
+			currentTask
+		) {
+			saveSession({ task: currentTask, history, status }).catch((err) =>
+				console.error('[SidePanel] Failed to save session:', err)
+			)
+		}
+	}, [status, history, currentTask])
+
 	// Auto-scroll to bottom on new events
 	useEffect(() => {
 		if (historyRef.current) {
@@ -56,19 +83,36 @@ export default function App() {
 		}
 	}
 
-	if (showConfig) {
+	// --- View routing ---
+
+	if (view.name === 'config') {
 		return (
 			<ConfigPanel
 				config={config}
 				onSave={async (newConfig) => {
 					await configure(newConfig)
-					setShowConfig(false)
+					setView({ name: 'chat' })
 				}}
-				onClose={() => setShowConfig(false)}
+				onClose={() => setView({ name: 'chat' })}
 			/>
 		)
 	}
 
+	if (view.name === 'history') {
+		return (
+			<HistoryList
+				onSelect={(id) => setView({ name: 'history-detail', sessionId: id })}
+				onBack={() => setView({ name: 'chat' })}
+			/>
+		)
+	}
+
+	if (view.name === 'history-detail') {
+		return <HistoryDetail sessionId={view.sessionId} onBack={() => setView({ name: 'history' })} />
+	}
+
+	// --- Chat view ---
+
 	const isRunning = status === 'running'
 	const showEmptyState = !currentTask && history.length === 0 && !isRunning
 
@@ -85,7 +129,15 @@ export default function App() {
 					<Button
 						variant="ghost"
 						size="icon-sm"
-						onClick={() => setShowConfig(true)}
+						onClick={() => setView({ name: 'history' })}
+						className="cursor-pointer"
+					>
+						<History className="size-3.5" />
+					</Button>
+					<Button
+						variant="ghost"
+						size="icon-sm"
+						onClick={() => setView({ name: 'config' })}
 						className="cursor-pointer"
 					>
 						<Settings className="size-3.5" />

packages/extension/src/entrypoints/sidepanel/components/HistoryDetail.tsx

@@ -0,0 +1,51 @@
+import { ArrowLeft } from 'lucide-react'
+import { useEffect, useState } from 'react'
+
+import { Button } from '@/components/ui/button'
+import { type SessionRecord, getSession } from '@/lib/db'
+
+import { EventCard } from './cards'
+
+export function HistoryDetail({ sessionId, onBack }: { sessionId: string; onBack: () => void }) {
+	const [session, setSession] = useState<SessionRecord | null>(null)
+
+	useEffect(() => {
+		getSession(sessionId).then((s) => setSession(s ?? null))
+	}, [sessionId])
+
+	if (!session) {
+		return (
+			<div className="flex items-center justify-center h-screen text-xs text-muted-foreground">
+				Loading...
+			</div>
+		)
+	}
+
+	return (
+		<div className="flex flex-col h-screen bg-background">
+			{/* Header */}
+			<header className="flex items-center gap-2 border-b px-3 py-2">
+				<Button variant="ghost" size="icon-sm" onClick={onBack} className="cursor-pointer">
+					<ArrowLeft className="size-3.5" />
+				</Button>
+				<span className="text-sm font-medium truncate">History</span>
+			</header>
+
+			{/* Task */}
+			<div className="border-b px-3 py-2 bg-muted/30">
+				<div className="text-[10px] text-muted-foreground uppercase tracking-wide">Task</div>
+				<div className="text-xs font-medium" title={session.task}>
+					{session.task}
+				</div>
+			</div>
+
+			{/* Events (read-only) */}
+			<div className="flex-1 overflow-y-auto p-3 space-y-2">
+				{session.history.map((event, index) => (
+					// eslint-disable-next-line react-x/no-array-index-key
+					<EventCard key={index} event={event} />
+				))}
+			</div>
+		</div>
+	)
+}

packages/extension/src/entrypoints/sidepanel/components/HistoryList.tsx

@@ -0,0 +1,119 @@
+import { ArrowLeft, CheckCircle, Trash2, XCircle } from 'lucide-react'
+import { useCallback, useEffect, useState } from 'react'
+
+import { Button } from '@/components/ui/button'
+import { type SessionRecord, clearSessions, deleteSession, listSessions } from '@/lib/db'
+
+function timeAgo(ts: number): string {
+	const seconds = Math.floor((Date.now() - ts) / 1000)
+	if (seconds < 60) return 'just now'
+	const minutes = Math.floor(seconds / 60)
+	if (minutes < 60) return `${minutes}m ago`
+	const hours = Math.floor(minutes / 60)
+	if (hours < 24) return `${hours}h ago`
+	const days = Math.floor(hours / 24)
+	return `${days}d ago`
+}
+
+export function HistoryList({
+	onSelect,
+	onBack,
+}: {
+	onSelect: (id: string) => void
+	onBack: () => void
+}) {
+	const [sessions, setSessions] = useState<SessionRecord[]>([])
+	const [loading, setLoading] = useState(true)
+
+	const load = useCallback(async () => {
+		setSessions(await listSessions())
+		setLoading(false)
+	}, [])
+
+	useEffect(() => {
+		// eslint-disable-next-line react-hooks/set-state-in-effect
+		load()
+	}, [load])
+
+	const handleDelete = async (e: React.MouseEvent, id: string) => {
+		e.stopPropagation()
+		await deleteSession(id)
+		setSessions((prev) => prev.filter((s) => s.id !== id))
+	}
+
+	return (
+		<div className="flex flex-col h-screen bg-background">
+			{/* Header */}
+			<header className="flex items-center gap-2 border-b px-3 py-2">
+				<Button variant="ghost" size="icon-sm" onClick={onBack} className="cursor-pointer">
+					<ArrowLeft className="size-3.5" />
+				</Button>
+				<span className="text-sm font-medium flex-1">History</span>
+				{sessions.length > 0 && (
+					<Button
+						variant="ghost"
+						size="sm"
+						onClick={async () => {
+							await clearSessions()
+							setSessions([])
+						}}
+						className="text-[10px] text-muted-foreground hover:text-destructive cursor-pointer h-6 px-2"
+					>
+						<Trash2 className="size-3 mr-1" />
+						Clear All
+					</Button>
+				)}
+			</header>
+
+			{/* List */}
+			<div className="flex-1 overflow-y-auto">
+				{loading && (
+					<div className="flex items-center justify-center h-32 text-xs text-muted-foreground">
+						Loading...
+					</div>
+				)}
+
+				{!loading && sessions.length === 0 && (
+					<div className="flex items-center justify-center h-32 text-xs text-muted-foreground">
+						No history yet
+					</div>
+				)}
+
+				{sessions.map((session) => (
+					<div
+						key={session.id}
+						role="button"
+						tabIndex={0}
+						onClick={() => onSelect(session.id)}
+						onKeyDown={(e) => e.key === 'Enter' && onSelect(session.id)}
+						className="w-full text-left px-3 py-2.5 border-b hover:bg-muted/50 transition-colors cursor-pointer flex items-start gap-2 group"
+					>
+						{/* Status icon */}
+						{session.status === 'completed' ? (
+							<CheckCircle className="size-3.5 text-green-500 shrink-0 mt-0.5" />
+						) : (
+							<XCircle className="size-3.5 text-destructive shrink-0 mt-0.5" />
+						)}
+
+						{/* Content */}
+						<div className="flex-1 min-w-0">
+							<p className="text-xs font-medium truncate">{session.task}</p>
+							<p className="text-[10px] text-muted-foreground mt-0.5">
+								{timeAgo(session.createdAt)} · {session.history.length} steps
+							</p>
+						</div>
+
+						{/* Delete */}
+						<button
+							type="button"
+							onClick={(e) => handleDelete(e, session.id)}
+							className="opacity-0 group-hover:opacity-100 transition-opacity p-1 hover:text-destructive cursor-pointer shrink-0"
+						>
+							<Trash2 className="size-3" />
+						</button>
+					</div>
+				))}
+			</div>
+		</div>
+	)
+}

packages/extension/src/lib/db.ts

@@ -0,0 +1,70 @@
+import type { HistoricalEvent } from '@page-agent/core'
+import { type DBSchema, type IDBPDatabase, openDB } from 'idb'
+
+const DB_NAME = 'page-agent-ext'
+const DB_VERSION = 1
+
+export interface SessionRecord {
+	id: string
+	task: string
+	history: HistoricalEvent[]
+	status: 'completed' | 'error'
+	createdAt: number
+}
+
+interface PageAgentDB extends DBSchema {
+	sessions: {
+		key: string
+		value: SessionRecord
+		indexes: { 'by-created': number }
+	}
+}
+
+let dbPromise: Promise<IDBPDatabase<PageAgentDB>> | null = null
+
+function getDB() {
+	if (!dbPromise) {
+		dbPromise = openDB<PageAgentDB>(DB_NAME, DB_VERSION, {
+			upgrade(db) {
+				const store = db.createObjectStore('sessions', { keyPath: 'id' })
+				store.createIndex('by-created', 'createdAt')
+			},
+		})
+	}
+	return dbPromise
+}
+
+export async function saveSession(
+	session: Omit<SessionRecord, 'id' | 'createdAt'>
+): Promise<SessionRecord> {
+	const db = await getDB()
+	const record: SessionRecord = {
+		...session,
+		id: crypto.randomUUID(),
+		createdAt: Date.now(),
+	}
+	await db.put('sessions', record)
+	return record
+}
+
+/** List sessions, newest first */
+export async function listSessions(): Promise<SessionRecord[]> {
+	const db = await getDB()
+	const all = await db.getAllFromIndex('sessions', 'by-created')
+	return all.reverse()
+}
+
+export async function getSession(id: string): Promise<SessionRecord | undefined> {
+	const db = await getDB()
+	return db.get('sessions', id)
+}
+
+export async function deleteSession(id: string): Promise<void> {
+	const db = await getDB()
+	await db.delete('sessions', id)
+}
+
+export async function clearSessions(): Promise<void> {
+	const db = await getDB()
+	await db.clear('sessions')
+}

packages/llms/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@page-agent/llms",
-    "version": "1.1.2",
+    "version": "1.3.0",
     "type": "module",
     "main": "./dist/lib/page-agent-llms.js",
     "module": "./dist/lib/page-agent-llms.js",

packages/llms/src/OpenAIClient.ts

@@ -54,8 +54,10 @@ export class OpenAIClient implements LLMClient {
 				signal: abortSignal,
 			})
 		} catch (error: unknown) {
-			console.error(error)
+			const isAbortError = (error as any)?.name === 'AbortError'
-			throw new InvokeError(InvokeErrorType.NETWORK_ERROR, 'Network request failed', error)
+			const errorMessage = isAbortError ? 'Network request aborted' : 'Network request failed'
+			if (!isAbortError) console.error(error)
+			throw new InvokeError(InvokeErrorType.NETWORK_ERROR, errorMessage, error)
 		}
 
 		// 3. Handle HTTP errors

packages/llms/src/errors.ts

@@ -34,12 +34,15 @@ export class InvokeError extends Error {
 		super(message)
 		this.name = 'InvokeError'
 		this.type = type
-		this.retryable = this.isRetryable(type)
+		this.retryable = this.isRetryable(type, rawError)
 		this.rawError = rawError
 		this.rawResponse = rawResponse
 	}
 
-	private isRetryable(type: InvokeErrorType): boolean {
+	private isRetryable(type: InvokeErrorType, rawError?: unknown): boolean {
+		const isAbortError = (rawError as any)?.name === 'AbortError'
+		if (isAbortError) return false
+
 		const retryableTypes: InvokeErrorType[] = [
 			InvokeErrorType.NETWORK_ERROR,
 			InvokeErrorType.RATE_LIMIT,

packages/llms/src/index.ts

@@ -49,6 +49,9 @@ export class LLM extends EventTarget {
 	): Promise<InvokeResult> {
 		return await withRetry(
 			async () => {
+				// in case user aborted before invoking
+				if (abortSignal.aborted) throw new Error('AbortError')
+
 				const result = await this.client.invoke(messages, tools, abortSignal, options)
 
 				return result

packages/page-agent/package.json

@@ -1,7 +1,7 @@
 {
     "name": "page-agent",
     "private": false,
-    "version": "1.1.2",
+    "version": "1.3.0",
     "type": "module",
     "main": "./dist/esm/page-agent.js",
     "module": "./dist/esm/page-agent.js",
@@ -44,10 +44,10 @@
         "postpublish": "node -e \"['README.md','LICENSE'].forEach(f=>{try{require('fs').unlinkSync(f)}catch{}})\""
     },
     "dependencies": {
-        "@page-agent/core": "1.1.2",
+        "@page-agent/core": "1.3.0",
-        "@page-agent/llms": "1.1.2",
+        "@page-agent/llms": "1.3.0",
-        "@page-agent/page-controller": "1.1.2",
+        "@page-agent/page-controller": "1.3.0",
-        "@page-agent/ui": "1.1.2",
+        "@page-agent/ui": "1.3.0",
         "chalk": "^5.6.2",
         "zod": "^4.3.5"
     }

packages/page-controller/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@page-agent/page-controller",
-    "version": "1.1.2",
+    "version": "1.3.0",
     "type": "module",
     "main": "./dist/lib/page-controller.js",
     "module": "./dist/lib/page-controller.js",

packages/page-controller/src/PageController.ts

@@ -248,7 +248,7 @@ export class PageController extends EventTarget {
 			if (element instanceof HTMLAnchorElement && element.target === '_blank') {
 				return {
 					success: true,
-					message: `✅ Clicked element (${elemText ?? index}). ⚠️ Link opens in a new tab. You are not capable of reading new tabs.`,
+					message: `✅ Clicked element (${elemText ?? index}). ⚠️ Link opened in a new tab.`,
 				}
 			}
 

packages/ui/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@page-agent/ui",
-    "version": "1.1.2",
+    "version": "1.3.0",
     "type": "module",
     "main": "./dist/lib/page-agent-ui.js",
     "module": "./dist/lib/page-agent-ui.js",

packages/ui/src/i18n/locales.ts

@@ -12,6 +12,7 @@ const enUS = {
 			question: 'Question: {{question}}',
 			waitingPlaceholder: 'Waiting for task to start...',
 			stop: 'Stop',
+			close: 'Close',
 			expand: 'Expand history',
 			collapse: 'Collapse history',
 			step: 'Step {{number}} · {{time}}{{duration}}',
@@ -59,6 +60,7 @@ const zhCN = {
 			question: '询问: {{question}}',
 			waitingPlaceholder: '等待任务开始...',
 			stop: '终止',
+			close: '关闭',
 			expand: '展开历史',
 			collapse: '收起历史',
 			step: '步骤 {{number}} · {{time}}{{duration}}',

packages/ui/src/index.ts

@@ -1,3 +1,2 @@
 export { Panel, type PanelConfig } from './panel/Panel'
-export type { AgentActivity, PanelAgentAdapter } from './panel/types'
 export { I18n, type SupportedLanguage, type TranslationKey } from './i18n'

packages/ui/src/panel/Panel.ts

@@ -33,7 +33,7 @@ export class Panel {
 	#statusText: HTMLElement
 	#historySection: HTMLElement
 	#expandButton: HTMLElement
-	#stopButton: HTMLElement
+	#actionButton: HTMLElement
 	#inputSection: HTMLElement
 	#taskInput: HTMLInputElement
 
@@ -76,7 +76,7 @@ export class Panel {
 		this.#statusText = this.#wrapper.querySelector(`.${styles.statusText}`)!
 		this.#historySection = this.#wrapper.querySelector(`.${styles.historySection}`)!
 		this.#expandButton = this.#wrapper.querySelector(`.${styles.expandButton}`)!
-		this.#stopButton = this.#wrapper.querySelector(`.${styles.stopButton}`)!
+		this.#actionButton = this.#wrapper.querySelector(`.${styles.stopButton}`)!
 		this.#inputSection = this.#wrapper.querySelector(`.${styles.inputSectionWrapper}`)!
 		this.#taskInput = this.#wrapper.querySelector(`.${styles.taskInput}`)!
 
@@ -105,6 +105,15 @@ export class Panel {
 			status === 'running' ? 'thinking' : status === 'idle' ? 'thinking' : status
 		this.#updateStatusIndicator(indicatorType)
 
+		// Morph action button: running = stop (■), not running = close (X)
+		if (status === 'running') {
+			this.#actionButton.textContent = '■'
+			this.#actionButton.title = this.#i18n.t('ui.panel.stop')
+		} else {
+			this.#actionButton.textContent = 'X'
+			this.#actionButton.title = this.#i18n.t('ui.panel.close')
+		}
+
 		// Show/hide based on status
 		if (status === 'running') {
 			this.show()
@@ -266,10 +275,14 @@ export class Panel {
 	}
 
 	/**
-	 * Stop Agent
+	 * Action button handler: stop when running, close (dispose) when idle
 	 */
-	#stopAgent(): void {
+	#handleActionButton(): void {
-		this.#agent.dispose()
+		if (this.#agent.status === 'running') {
+			this.#agent.stop()
+		} else {
+			this.#agent.dispose()
+		}
 	}
 
 	/**
@@ -383,7 +396,7 @@ export class Panel {
 					<button class="${styles.controlButton} ${styles.expandButton}" title="${this.#i18n.t('ui.panel.expand')}">
 						▼
 					</button>
-					<button class="${styles.controlButton} ${styles.stopButton}" title="${this.#i18n.t('ui.panel.stop')}">
+					<button class="${styles.controlButton} ${styles.stopButton}" title="${this.#i18n.t('ui.panel.close')}">
 						X
 					</button>
 				</div>
@@ -420,10 +433,10 @@ export class Panel {
 			this.#toggle()
 		})
 
-		// Stop button
+		// Action button (stop / close)
-		this.#stopButton.addEventListener('click', (e) => {
+		this.#actionButton.addEventListener('click', (e) => {
 			e.stopPropagation()
-			this.#stopAgent()
+			this.#handleActionButton()
 		})
 
 		// Submit on Enter key in input field

packages/ui/src/panel/types.ts

@@ -68,6 +68,9 @@ export interface PanelAgentAdapter extends EventTarget {
 	/** Execute a task */
 	execute(task: string): Promise<unknown>
 
-	/** Dispose the agent */
+	/** Stop the current task (agent remains reusable) */
+	stop(): void
+
+	/** Dispose the agent (terminal, cannot be reused) */
 	dispose(): void
 }

packages/website/package.json

@@ -1,7 +1,7 @@
 {
     "name": "@page-agent/website",
     "private": true,
-    "version": "1.1.2",
+    "version": "1.3.0",
     "type": "module",
     "scripts": {
         "dev": "vite --host 0.0.0.0",
@@ -10,30 +10,26 @@
         "typecheck": "tsc --noEmit"
     },
     "devDependencies": {
-        "@tailwindcss/vite": "^4.1.18",
-        "@types/react": "^19.2.8",
-        "@types/react-dom": "^19.2.1",
-        "@vitejs/plugin-react-swc": "^4.1.0",
-        "react": "^19.2.4",
-        "react-dom": "^19.2.4",
-        "tailwindcss": "^4.1.14",
-        "tw-animate-css": "^1.4.0",
-        "wouter": "^3.9.0"
-    },
-    "dependencies": {
         "@radix-ui/react-icons": "^1.3.2",
         "@radix-ui/react-separator": "^1.1.8",
         "@radix-ui/react-slot": "^1.2.4",
         "@radix-ui/react-switch": "^1.2.6",
         "@radix-ui/react-tooltip": "^1.2.8",
+        "@types/react": "^19.2.13",
+        "@types/react-dom": "^19.2.1",
         "class-variance-authority": "^0.7.1",
         "clsx": "^2.1.1",
         "lucide-react": "^0.563.0",
-        "motion": "^12.30.0",
+        "motion": "^12.34.0",
         "next-themes": "^0.4.6",
+        "react": "^19.2.4",
+        "react-dom": "^19.2.4",
         "rough-notation": "^0.5.1",
-        "simple-icons": "^16.7.0",
+        "simple-icons": "^16.8.0",
         "sonner": "^2.0.7",
-        "tailwind-merge": "^3.4.0"
+        "tailwind-merge": "^3.4.0",
+        "tailwindcss": "^4.1.14",
+        "tw-animate-css": "^1.4.0",
+        "wouter": "^3.9.0"
     }
 }

packages/website/src/constants.ts

@@ -1,8 +1,8 @@
 // Demo build (auto-init with demo LLM, for quick testing)
 export const CDN_DEMO_URL =
-	'https://cdn.jsdelivr.net/npm/page-agent@1.1.2/dist/iife/page-agent.demo.js'
+	'https://cdn.jsdelivr.net/npm/page-agent@1.3.0/dist/iife/page-agent.demo.js'
 export const CDN_DEMO_CN_URL =
-	'https://registry.npmmirror.com/page-agent/1.1.2/files/dist/iife/page-agent.demo.js'
+	'https://registry.npmmirror.com/page-agent/1.3.0/files/dist/iife/page-agent.demo.js'
 
 // Demo LLM for website testing
 export const DEMO_MODEL = 'PAGE-AGENT-FREE-TESTING-RANDOM'

packages/website/src/pages/docs/advanced/page-agent-core/page.tsx

@@ -376,13 +376,6 @@ const result = await agent.execute('Fill in the form with test data')`}
 								? '执行任务并返回结果。包含 success、data 和 history 字段。'
 								: 'Execute a task and return result. Contains success, data, and history fields.',
 						},
-						{
-							name: 'pushObservation(content: string)',
-							type: 'void',
-							description: isZh
-								? '向历史流推送一个观察事件，会在下一步时被 LLM 看到'
-								: 'Push an observation to history stream, will be seen by LLM in next step',
-						},
 						{
 							name: 'dispose(reason?: string)',
 							type: 'void',

packages/website/src/pages/docs/features/chrome-extension/page.tsx

@@ -1,11 +1,13 @@
-import { siGithub } from 'simple-icons'
+import { siChromewebstore, siGithub } from 'simple-icons'
 
-import BetaNotice from '@/components/BetaNotice'
 import CodeEditor from '@/components/CodeEditor'
 import { useLanguage } from '@/i18n/context'
 
 export default function ChromeExtension() {
 	const { isZh } = useLanguage()
+	const chromeWebStoreUrl =
+		'https://chromewebstore.google.com/detail/page-agent-ext/akldabonmimlicnjlflnapfeklbfemhj'
+	const githubReleasesUrl = 'https://github.com/alibaba/page-agent/releases'
 
 	return (
 		<div>
@@ -13,70 +15,92 @@ export default function ChromeExtension() {
 
 			<p className="text-xl text-gray-600 dark:text-gray-300 mb-8 leading-relaxed">
 				{isZh
-					? '可选的 Chrome 扩展，解锁多页任务和第三方 API 集成。'
+					? '可选的 Chrome 扩展。PageAgent.js 继续负责页面内自动化；扩展 API 额外提供多页面任务、浏览器级控制，以及从浏览器外部发起任务的能力。'
-					: 'Optional Chrome extension that unlocks multi-page tasks and third-party API integration.'}
+					: 'An optional Chrome extension. PageAgent.js keeps handling in-page automation, while the extension API adds multi-page tasks, browser-level control, and tasks initiated from outside the browser.'}
 			</p>
 
-			<BetaNotice />
-
 			<div className="space-y-8 mt-8">
-				{/* Hero Section */}
-				<section className="p-6 bg-linear-to-r from-blue-50 to-purple-50 dark:from-blue-900/20 dark:to-purple-900/20 rounded-xl">
-					<div className="flex items-start gap-4">
-						<div>
-							<p className="text-gray-600 dark:text-gray-300">
-								{isZh
-									? '解锁多页任务！借助 Chrome 扩展，Agent 可以跨标签页和页面导航，突破单页限制。'
-									: 'Unlock multi-page tasks! With the Chrome extension, your agent can navigate across tabs and pages, breaking the single-page limitation.'}
-							</p>
-						</div>
-					</div>
-				</section>
-
 				{/* Features */}
 				<section>
 					<h2 className="text-2xl font-bold mb-4">{isZh ? '核心特性' : 'Key Features'}</h2>
-					<div className="grid md:grid-cols-2 gap-4">
+					<div className="grid md:grid-cols-3 gap-4">
 						<div className="p-4 bg-gray-50 dark:bg-gray-800 rounded-lg">
 							<h3 className="font-semibold mb-2">🔓 {isZh ? '多页任务' : 'Multi-Page Tasks'}</h3>
 							<p className="text-gray-600 dark:text-gray-300 text-sm">
 								{isZh
-									? '跨多个页面和标签页执行任务，不再局限于单页操作。'
+									? '跨多个页面和标签页连续执行任务，不再受限于单页上下文。'
-									: 'Execute tasks across multiple pages and tabs. No longer limited to single-page operations.'}
+									: 'Run tasks across multiple pages and tabs without being limited to a single page context.'}
 							</p>
 						</div>
 						<div className="p-4 bg-gray-50 dark:bg-gray-800 rounded-lg">
 							<h3 className="font-semibold mb-2">
-								🔌 {isZh ? '开放第三方接口' : 'Third-Party API'}
+								🧭 {isZh ? '浏览器级控制' : 'Browser-Level Control'}
 							</h3>
 							<p className="text-gray-600 dark:text-gray-300 text-sm">
 								{isZh
-									? '用户授权后，你的网页、本地 Agent 或云端 Agent 都能通过扩展操作用户浏览器！'
+									? '支持跨标签导航、页面切换和更完整的浏览器自动化能力。'
-									: 'After user authorization, your webpage, local agent, or cloud agent can control the browser through the extension.'}
+									: 'Enable richer browser automation, including cross-tab navigation and page switching.'}
+							</p>
+						</div>
+						<div className="p-4 bg-gray-50 dark:bg-gray-800 rounded-lg">
+							<h3 className="font-semibold mb-2">
+								🔌 {isZh ? '开放集成接口' : 'Open Integration API'}
+							</h3>
+							<p className="text-gray-600 dark:text-gray-300 text-sm">
+								{isZh
+									? '用户主动授权后，页面 JS、本地 Agent 或云端 Agent 可通过扩展发起多页面任务。'
+									: 'With explicit user authorization, page JS, local agents, or cloud agents can trigger multi-page tasks through the extension.'}
 							</p>
 						</div>
 					</div>
 				</section>
 
-				{/* Download */}
+				{/* Install */}
 				<section>
-					<h2 className="text-2xl font-bold mb-4">{isZh ? '下载测试版' : 'Download Beta'}</h2>
+					<h2 className="text-2xl font-bold mb-4">{isZh ? '获取扩展' : 'Get the Extension'}</h2>
-					<p className="text-gray-600 dark:text-gray-300 mb-4">
+					<div className="flex flex-wrap gap-3">
-						{isZh
+						<a
-							? '扩展目前处于 Beta 阶段，请从 GitHub Releases 下载最新版本。'
+							href={chromeWebStoreUrl}
-							: 'The extension is currently in beta. Download the latest version from GitHub Releases.'}
+							target="_blank"
-					</p>
+							rel="noopener noreferrer"
-					<a
+							className="inline-flex items-center gap-2 px-6 py-3 bg-blue-600 hover:bg-blue-700 text-white font-medium rounded-lg transition-colors"
-						href="https://github.com/alibaba/page-agent/releases"
+						>
-						target="_blank"
+							<svg className="w-5 h-5" fill="currentColor" viewBox="0 0 24 24">
-						rel="noopener noreferrer"
+								<path d={siChromewebstore.path} />
-						className="inline-flex items-center gap-2 px-6 py-3 bg-blue-600 hover:bg-blue-700 text-white font-medium rounded-lg transition-colors"
+							</svg>
-					>
+							{isZh ? '从 Chrome 应用商店安装' : 'Install from Chrome Web Store'}
-						<svg className="w-5 h-5" fill="currentColor" viewBox="0 0 24 24">
+						</a>
-							<path d={siGithub.path} />
+						<a
-						</svg>
+							href={githubReleasesUrl}
-						{isZh ? '前往 GitHub Releases 下载' : 'Download from GitHub Releases'}
+							target="_blank"
-					</a>
+							rel="noopener noreferrer"
+							className="inline-flex items-center gap-2 px-6 py-3 bg-gray-900 hover:bg-gray-800 dark:bg-gray-700 dark:hover:bg-gray-600 text-white font-medium rounded-lg transition-colors"
+						>
+							<svg className="w-5 h-5" fill="currentColor" viewBox="0 0 24 24">
+								<path d={siGithub.path} />
+							</svg>
+							{isZh ? 'GitHub Releases（更新版本）' : 'GitHub Releases (faster updates)'}
+						</a>
+					</div>
+				</section>
+
+				{/* Relationship with PageAgent.js */}
+				<section>
+					<h2 className="text-2xl font-bold mb-4">
+						{isZh ? '与 PageAgent.js 的关系' : 'How It Relates to PageAgent.js'}
+					</h2>
+					<div className="p-5 bg-gray-50 dark:bg-gray-800 rounded-lg space-y-3 text-gray-600 dark:text-gray-300">
+						<p>
+							{isZh
+								? 'PageAgent.js 本身即可在页面内完成自动化。Chrome 扩展是可选的能力扩展。'
+								: 'PageAgent.js already works for in-page automation. The Chrome extension is optional, not a dependency.'}
+						</p>
+						<p>
+							{isZh
+								? '通过扩展，你可以执行多页面任务、控制浏览器，以及从浏览器外部（本地服务或云端服务）发起任务。'
+								: 'With the extension, you can perform multi-page tasks, browser-level control, and tasks triggered outside the browser (local or cloud services).'}
+						</p>
+					</div>
 				</section>
 
 				{/* Third-party Integration */}
@@ -86,32 +110,33 @@ export default function ChromeExtension() {
 					</h2>
 					<p className="text-gray-600 dark:text-gray-300 mb-4">
 						{isZh
-							? '用户授权后，外部应用可以调用扩展 API 来控制浏览器。'
+							? '通过页面 JavaScript 调用 `window.PAGE_AGENT_EXT`，你的应用可以发起跨页面任务并控制浏览器行为。'
-							: 'After user authorization, external applications can call the extension API to control the browser.'}
+							: 'By calling `window.PAGE_AGENT_EXT` from page JavaScript, your app can trigger multi-page tasks and control browser behavior.'}
 					</p>
 
-					{/* Auth Flow */}
+					<h3 className="text-xl font-semibold mb-3">
-					<h3 className="text-xl font-semibold mb-3">{isZh ? '授权流程' : 'Authorization Flow'}</h3>
+						{isZh ? '授权与安全' : 'Authorization and Security'}
+					</h3>
 					<p className="text-gray-600 dark:text-gray-300 mb-4">
 						{isZh
-							? '扩展使用基于 Token 的授权机制，扩展端和页面端必须持有匹配的 Token。'
+							? '扩展权限范围较广（例如页面访问、导航、多标签控制）。若被滥用，可能危害用户隐私。为此，调用能力由 Token 保护，用户必须主动将 Token 提供给其信任的应用。'
-							: 'The extension uses a token-based authorization mechanism. Both extension and page must have matching tokens.'}
+							: 'The extension has broad permissions (such as page access, navigation, and multi-tab control). If abused, it can harm user privacy. That is why access is protected by a token, and users must actively share the token only with applications they trust.'}
 					</p>
 
 					<CodeEditor
 						code={
 							isZh
-								? `// 1. 用户安装扩展并在扩展设置中配置 auth token
+								? `// 1) 用户在扩展侧边栏获取 auth token
-// 2. 你的页面读取相同的 token 并存入 localStorage
+// 2) 仅在可信应用中设置该 token
-// 3. Token 匹配后，扩展会暴露 window.PAGE_AGENT_EXT 对象
+// 3) token 匹配后，扩展会暴露 window.PAGE_AGENT_EXT
 
-// ⚠️ 请在扩展弹窗中查看你的 auth token，然后填入下方
+// ⚠️ 不要把 token 提供给不可信页面或脚本
 localStorage.setItem('PageAgentExtUserAuthToken', '<从扩展中获取的-token>')`
-								: `// 1. User installs extension and sets an auth token in extension settings
+								: `// 1) Get auth token from the extension side panel
-// 2. Your page reads the same token and stores it in localStorage
+// 2) Set it only in trusted applications
-// 3. After token match, extension exposes window.PAGE_AGENT_EXT object
+// 3) After token match, extension exposes window.PAGE_AGENT_EXT
 
-// ⚠️ Check your extension popup for the auth token
+// ⚠️ Never provide the token to untrusted pages or scripts
 localStorage.setItem('PageAgentExtUserAuthToken', '<your-token-from-extension>')`
 						}
 						language="javascript"
@@ -152,13 +177,85 @@ localStorage.setItem('PageAgentExtUserAuthToken', '<your-token-from-extension>')
 						</div>
 					</section>
 
-					<h3 className="text-xl font-semibold my-3">PAGE_AGENT_EXT.execute(task, config)</h3>
+					{/* TypeScript Declaration */}
+					<h2 className="text-2xl font-bold mb-4">
+						{isZh ? 'TypeScript 类型声明' : 'TypeScript Declaration'}
+					</h2>
 					<p className="text-gray-600 dark:text-gray-300 mb-4">
 						{isZh
-							? '使用配置执行任务。返回一个 Promise，在任务完成时 resolve。config 参数包含 LLM 设置、选项和事件回调。'
+							? '推荐把 `execute` 的类型声明加入你的项目，获得完整类型提示。'
-							: 'Execute a task with configuration. Returns a Promise that resolves when the task completes. Config includes LLM settings, options, and event callbacks.'}
+							: 'Add this `execute` declaration to your project for full type support.'}
 					</p>
 
+					<CodeEditor
+						code={
+							isZh
+								? `import type {
+	AgentActivity,
+	AgentStatus,
+	ExecutionResult,
+	HistoricalEvent
+} from '@page-agent/core'
+
+interface ExecuteConfig {
+	baseURL: string   // LLM API 端点
+	apiKey: string    // API 密钥
+	model: string     // 模型名称
+
+	includeInitialTab?: boolean
+	onStatusChange?: (status: AgentStatus) => void
+	onActivity?: (activity: AgentActivity) => void
+	onHistoryUpdate?: (history: HistoricalEvent[]) => void
+}
+
+type Execute = (task: string, config: ExecuteConfig) => Promise<ExecutionResult>
+
+declare global {
+	interface Window {
+		PAGE_AGENT_EXT_VERSION?: string
+		PAGE_AGENT_EXT?: {
+			version: string
+			execute: Execute
+			stop: () => void
+		}
+	}
+}`
+								: `import type {
+	AgentActivity,
+	AgentStatus,
+	ExecutionResult,
+	HistoricalEvent
+} from '@page-agent/core'
+
+interface ExecuteConfig {
+	baseURL: string   // LLM API endpoint
+	apiKey: string    // API key
+	model: string     // Model name
+
+	includeInitialTab?: boolean
+	onStatusChange?: (status: AgentStatus) => void
+	onActivity?: (activity: AgentActivity) => void
+	onHistoryUpdate?: (history: HistoricalEvent[]) => void
+}
+
+type Execute = (task: string, config: ExecuteConfig) => Promise<ExecutionResult>
+
+declare global {
+	interface Window {
+		PAGE_AGENT_EXT_VERSION?: string
+		PAGE_AGENT_EXT?: {
+			version: string
+			execute: Execute
+			stop: () => void
+		}
+	}
+}`
+						}
+						language="typescript"
+					/>
+
+					<h3 className="text-xl font-semibold mt-6 mb-3">PAGE_AGENT_EXT.execute(task, config)</h3>
+
 					<CodeEditor
 						code={
 							isZh
@@ -168,12 +265,11 @@ const result = await window.PAGE_AGENT_EXT.execute(
 	{
 		baseURL: 'https://api.openai.com/v1',
 		apiKey: 'your-api-key',
-		model: 'gpt-5-2',
+		model: 'gpt-5.2',
 		// includeInitialTab: false, // 设为 false 排除初始标签页
 		onStatusChange: status => console.log('状态变化:', status),
 		onActivity: activity => console.log('活动:', activity),
-		onHistoryUpdate: history => console.log('历史更新:', history),
+		onHistoryUpdate: history => console.log('历史更新:', history)
-		onDispose: () => console.log('已停止')
 	}
 )
 
@@ -184,12 +280,11 @@ const result = await window.PAGE_AGENT_EXT.execute(
 	{
 		baseURL: 'https://api.openai.com/v1',
 		apiKey: 'your-api-key',
-		model: 'gpt-5-2',
+		model: 'gpt-5.2',
 		// includeInitialTab: false, // Set to false to exclude initial tab
 		onStatusChange: status => console.log('Status change:', status),
 		onActivity: activity => console.log('Activity:', activity),
-		onHistoryUpdate: history => console.log('History update:', history),
+		onHistoryUpdate: history => console.log('History update:', history)
-		onDispose: () => console.log('Disposed')
 	}
 )
 
@@ -198,130 +293,46 @@ console.log(result) // Task execution result`
 						language="javascript"
 					/>
 
-					<h3 className="text-xl font-semibold mt-6 mb-3">PAGE_AGENT_EXT.dispose()</h3>
+					<h3 className="text-xl font-semibold mt-6 mb-3">PAGE_AGENT_EXT.stop()</h3>
 					<p className="text-gray-600 dark:text-gray-300 mb-4">
-						{isZh
+						{isZh ? '停止当前正在运行的任务。' : 'Stop the current running task.'}
-							? '停止当前正在运行的任务。停止后 Agent 可以重新使用。'
-							: 'Stop the current running task. The agent can be reused after disposal.'}
 					</p>
 
 					<CodeEditor
 						code={
 							isZh
 								? `// 停止当前任务
-window.PAGE_AGENT_EXT.dispose()`
+window.PAGE_AGENT_EXT.stop()`
 								: `// Stop current task execution
-window.PAGE_AGENT_EXT.dispose()`
+window.PAGE_AGENT_EXT.stop()`
 						}
 						language="javascript"
 					/>
 				</section>
 
-				{/* ExecuteConfig */}
-				<section>
-					<h2 className="text-2xl font-bold mb-4">{isZh ? '执行配置' : 'Execute Configuration'}</h2>
-					<p className="text-gray-600 dark:text-gray-300 mb-4">
-						{isZh
-							? 'config 参数包含 LLM 设置、选项和事件回调，用于控制任务执行行为。'
-							: 'The config parameter includes LLM settings, options, and event callbacks to control task execution behavior.'}
-					</p>
-
-					<CodeEditor
-						code={
-							isZh
-								? `interface ExecuteConfig {
-	baseURL: string   // LLM API 端点
-	apiKey: string    // API 密钥
-	model: string     // 模型名称
-
-	// 是否将初始标签页包含在任务中，默认 true
-	includeInitialTab?: boolean
-
-	// Agent 状态变化时调用（idle, running, error, completed 等）
-	onStatusChange?: (status: AgentStatus) => void
-
-	// Agent 执行活动时调用（如点击、输入、导航等操作）
-	onActivity?: (activity: AgentActivity) => void
-
-	// 历史记录更新时调用（包含完整的事件历史）
-	onHistoryUpdate?: (history: HistoricalEvent[]) => void
-
-	// Agent 被停止时调用
-	onDispose?: () => void
-}`
-								: `interface ExecuteConfig {
-	baseURL: string   // LLM API endpoint
-	apiKey: string    // API key
-	model: string     // Model name
-
-	// Whether to include the initial tab in the task, default true
-	includeInitialTab?: boolean
-
-	// Called when agent status changes (idle, running, error, completed, etc.)
-	onStatusChange?: (status: AgentStatus) => void
-
-	// Called when agent performs an activity (click, input, navigation, etc.)
-	onActivity?: (activity: AgentActivity) => void
-
-	// Called when history is updated (contains full event history)
-	onHistoryUpdate?: (history: HistoricalEvent[]) => void
-
-	// Called when agent is disposed
-	onDispose?: () => void
-}`
-						}
-						language="typescript"
-					/>
-				</section>
-
-				{/* Security Notice */}
-				<section className="p-4 bg-yellow-50 dark:bg-yellow-900/20 rounded-lg">
-					<h3 className="text-lg font-semibold text-yellow-900 dark:text-yellow-300 mb-2">
-						⚠️ {isZh ? '安全须知' : 'Security Notes'}
-					</h3>
-					<ul className="text-gray-600 dark:text-gray-300 space-y-1 text-sm">
-						<li>
-							•{' '}
-							{isZh
-								? '用户必须在扩展设置中显式授权每个域名'
-								: 'Users must explicitly authorize each domain in extension settings'}
-						</li>
-						<li>
-							•{' '}
-							{isZh
-								? '生产环境建议使用后端代理 LLM API Key'
-								: 'Consider using backend proxy for LLM API keys in production'}
-						</li>
-					</ul>
-				</section>
-
 				{/* Integration Guide */}
 				<section>
 					<h2 className="text-2xl font-bold mb-4">
 						{isZh
-							? '将 MultiPageAgent 融入你自己的插件'
+							? '将 MultiPageAgent 集成你自己的插件'
 							: 'Integrate MultiPageAgent into Your Extension'}
 					</h2>
 					<p className="text-gray-600 dark:text-gray-300 mb-4">
 						{isZh
-							? '你可以将 MultiPageAgent 集成到自己的浏览器扩展中，实现跨页面的 AI 自动化能力。'
+							? '建议先阅读扩展 API 文档，再参考 background entry implementation。'
-							: 'You can integrate MultiPageAgent into your own browser extension for cross-page AI automation capabilities.'}
+							: 'Start with the extension API docs, then use the background entry implementation as a reference.'}
+						<a
+							href="https://github.com/alibaba/page-agent/blob/main/packages/extension/src/entrypoints/background.ts"
+							target="_blank"
+							rel="noopener noreferrer"
+							className="inline-flex items-center gap-2 text-blue-600 hover:text-blue-700 dark:text-blue-400 dark:hover:text-blue-300"
+						>
+							<svg className="w-5 h-5" fill="currentColor" viewBox="0 0 24 24">
+								<path d={siGithub.path} />
+							</svg>
+							packages/extension/src/entrypoints/background.ts
+						</a>
 					</p>
-					<p className="text-gray-600 dark:text-gray-300 mb-4">TODO</p>
-					<p className="text-gray-600 dark:text-gray-300 mb-4">
-						{isZh ? '参考源码实现：' : 'Reference implementation:'}
-					</p>
-					<a
-						href="https://github.com/alibaba/page-agent/blob/main/packages/extension/src/entrypoints/background.ts"
-						target="_blank"
-						rel="noopener noreferrer"
-						className="inline-flex items-center gap-2 text-blue-600 hover:text-blue-700 dark:text-blue-400 dark:hover:text-blue-300"
-					>
-						<svg className="w-5 h-5" fill="currentColor" viewBox="0 0 24 24">
-							<path d={siGithub.path} />
-						</svg>
-						packages/extension/src/entrypoints/background.ts
-					</a>
 				</section>
 			</div>
 		</div>

tsconfig.base.json

@@ -28,20 +28,5 @@
         "erasableSyntaxOnly": true,
         "noFallthroughCasesInSwitch": true,
         "noUncheckedSideEffectImports": true
-
-        // "paths": {
-        // 	// Simplified monorepo solution (raw npm workspace with hoisting)
-        // 	"@page-agent/page-controller": ["./packages/page-controller/src/PageController.ts"],
-        // 	"page-agent": ["./packages/page-agent/src/PageAgent.ts"]
-        // }
     }
-    // "references": [
-    // 	{ "path": "./packages/page-controller" },
-    // 	{ "path": "./packages/page-agent" },
-    // 	{ "path": "./packages/website" }
-    // ],
-    // "include": ["packages/*/src/**/*.ts", "packages/*/src/**/*.tsx"],
-    // "exclude": ["node_modules", "dist", "packages/*/dist"]
-    // "files": ["env.d.ts"]
-    // "files": []
 }

tsconfig.json

@@ -1,3 +1,5 @@
+// this is only for IDE ts language server to work.
+// do not use this for building or linting.
 {
     "extends": "./tsconfig.base.json",
     "references": [