Show HN: Peek-CLI: let coding agents see your browser

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

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

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

You only need to do steps 1 & 2 once on 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 is in the process of approval; manual installation is needed for now.

• Install the CLI

npm i -g peeked

• Install the Skill

For Claude Code & Copilot:

/plugin marketplace add puffinsoft/peek-cli

For Codex:

codex plugin marketplace add puffinsoft/peek-cli

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