agent-tab-bridge

agent-tab-bridge

Enables local AI agents to control Chrome in parallel with isolated tab groups, supporting operations like navigation, clicks, and form filling without interference.

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README

Agent Tab Bridge

让本地任意 AI agent 工具(Claude Code、Codex CLical、Cursor…)并行、后台、互不干扰地控制 Chrome —— 每个 agent 一个彩色标签组,像 Codex 官方浏览器插件那样。

Claude Code ─MCP─┐
Codex CLI   ─MCP─┤                    ┌─ 组"claude"(蓝) tab tab
脚本/REST   ─────┼→ bridge :8737 ─WS→ 扩展 ─→ ├─ 组"codex"(绿)  tab
                 │  (本地守护进程)     (你的Chrome) └─ 你自己的标签(不碰)
  • 一个 agent = 一个会话 = 一个彩色命名标签组;命令只作用于本会话打开的标签,跨会话零干扰。
  • 真并行:跨标签 / 跨会话并发执行(不同于单连接串行的 chrome-devtools MCP)。
  • 后台运行:所有标签 active:false 打开,不抢你的焦点(唯一例外见下方"截图")。
  • 零打扰的日常操作:snapshot / click / fill / extract 走注入脚本,没有"正在调试"提示条。

安装(三步)

1. 装依赖

cd ~/project/agent-tab-bridge && npm install

2. 加载扩展到 Chrome

⚠️ 品牌版 Google Chrome 已禁用 --load-extension 命令行,必须走界面加载:

  1. 地址栏打开 chrome://extensions/
  2. 右上角打开 开发者模式
  3. 加载已解压的扩展程序
  4. 选择目录:~/project/agent-tab-bridge/extension

加载后点扩展图标,看到 ● 已连接本地桥 即成功(首次会自动拉起 bridge)。

3. 接入你的 agent 工具

Claude Code:

claude mcp add tab-bridge -- node ~/project/agent-tab-bridge/mcp/index.js

Codex / Cursor 等(通用 MCP 配置):

{ "mcpServers": { "tab-bridge": { "command": "node",
  "args": ["/Users/shibanyu/project/agent-tab-bridge/mcp/index.js"],
  "env": { "AGENT_NAME": "codex" } } } }

AGENT_NAME 决定标签组的名字(不填则用客户端名)。

agent 能用的工具(19 个,均限本会话)

browser_open_tab browser_list_tabs browser_close_tab browser_navigate browser_snapshot browser_screenshot browser_click browser_fill browser_fill_form browser_select browser_hover browser_press_key browser_scroll browser_evaluate browser_wait_for browser_console browser_extract browser_activate_tab browser_session_end

典型流程:open_tabsnapshot(拿 uid)→ click/fill(用 uid)→ wait_forscreenshot

测试

# 前提:bridge + 扩展在线(用 Chrome for Testing 可命令行加载扩展做自动化测试)
node scripts/smoke.js          # 两个 agent 并行 + 隔离验证 + 全链路
node scripts/smoke.js --keep   # 保留标签,肉眼看两个彩色分组

关于"截图"与打扰

  • snapshot/click/fill/extract 永不打扰 —— 走注入脚本,后台标签直接操作。
  • screenshot 需要标签可见:隐藏标签没有渲染表面,Chrome 无法截。插件的做法是瞬时激活该标签→截图→立刻切回你原来的标签(全程不改窗口焦点)。
    • 该标签在后台窗口 → 你完全看不到。
    • 该标签在你正看着的窗口 → 会看到约 150ms 的标签闪动。
  • 用到 screenshot / console / evaluate 会在浏览器顶部出现"正在调试此浏览器"提示条(Codex 同款)。别点它的"取消",点了会断开调试,下次自动重挂。

已知边界

  • chrome://、Chrome 应用商店页面无法控制(Chrome 平台限制)。
  • 某标签开着 DevTools 时,该标签无法挂调试器(截图/console/evaluate 会报错)。
  • 完全最小化的窗口里的标签无法截图(没有渲染表面)。
  • 与 chrome-devtools MCP 可共存,但别让两者操作同一个标签。

详见 docs/PROTOCOL.md(WS/REST 协议,给非 MCP 工具对接用)。

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