Peek-CLI：让 Claude Code 看见浏览器

英文标题：🔶 Show HN: Peek-CLI: Let Claude Code See the Browser

peek-cli 是一个开源命令行工具，能让 Claude Code、Codex、Copilot 等 AI 编程代理捕获浏览器中任意标签页的截图。它通过浏览器扩展与 WebSocket 流传输实现，并在设计上严格限定代理只能请求截图，无法访问浏览器或执行脚本，确保安全。该工具已发布 Chrome 扩展，支持与常用编码代理的插件市场集成，为开发者提供了赋予代理视觉感知能力的轻量方案。

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中文

peek-cli 允许代理捕获浏览器中任意打开的标签页的截图。

适用于 Claude Code、Codex、Copilot 等多种代理……

查看实际运行效果：

视频/嵌入内容：演示

其工作原理是通过浏览器扩展，利用 WebSocket 实时传输截图。

出于安全考虑，每次启动时都需要将代理连接一次。

启动 WebSocket 守护进程：

bash peeked start

Successfully started server.
连接您的浏览器：
一切就绪！

bash peeked list # view available tabs

[ 'http://localhost:3000/' ]

peeked at http://localhost:3000 # capture screenshot

Image saved to: /var/.../peek_cli/images/dd999ee0.jpg

安装 Chrome 扩展。

🎉 扩展已获 Chrome 网上应用店审核通过！

安装 CLI
安装技能

对于 Claude Code：

bash
/plugin marketplace add puffinsoft/peek-cli
/plugin install view-browser-tab@peek-cli

对于 Codex：

bash
codex plugin marketplace add puffinsoft/peek-cli
codex plugin add view-browser-tab@peek-cli

没错，100% 安全。代理除了截图之外无法执行任何操作。

这是因为代理通过 WebSocket 服务器向扩展发送 截图请求。

它从不直接访问浏览器，也不能注入任何脚本或执行任何操作。

为了让您更加安心，我们邀请您查看扩展的源代码。

peek-cli 是开源软件，采用 MIT 许可证。

English / 原文

peek-cli allows agents to capture a screenshot of any open tab in your browser.

Works with Claude Code, Codex, Copilot and many more...

See it in action:

demo.mp4

It works by using a browser extension to stream screenshots over WebSockets.

For security, you need to connect the agent once on every startup.

Start the WebSocket daemon:

peeked start
> Successfully started server.

Connect your browser:

You're good to go!

peeked list # view available tabs
> [ 'http://localhost:3000/' ]

peeked at http://localhost:3000 # capture screenshot
> Image saved to: /var/.../peek_cli/images/dd999ee0.jpg

Install the Chrome Extension.

🎉 the extension has been approved on the Chrome Web Store!

Install the CLI
Install the Skill

For Claude Code:

/plugin marketplace add puffinsoft/peek-cli
/plugin install view-browser-tab@peek-cli

For Codex:

codex plugin marketplace add puffinsoft/peek-cli
codex plugin add view-browser-tab@peek-cli

Yes, 100%. It is impossible for the agent to do anything but take a screenshot.

This is because the agent sends screenshot requests to the extension through a WebSocket server.

It never accesses the browser and cannot inject any scripts / perform any actions.

We invite you to take a look at the extension source code for added peace of mind.

peek-cli is open source software, licensed under the MIT license.