Is my browser data or credentials shared with the AI?

No, all operations run locally on your machine. Only the specific data extracted by the scripts (like page titles or selected DOM elements) is shared with the agent.

Can I run custom JavaScript within the browser context?

Yes, the eval.js script allows you to execute single expressions or IIFEs directly within the browser, returning the results as structured JSON.

How does Claude interact with specific elements on a page?

The skill includes a 'pick' utility that allows the agent to visually select elements and return detailed metadata including IDs, classes, and CSS selectors.

Do I need an MCP server to use this browser skill?

No, this skill uses minimal local scripts to communicate directly with Chrome via the DevTools Protocol, removing the need for an external MCP server setup.

Can I use this with my existing browser login sessions?

Yes, by using the --profile flag during launch, you can use a persistent Chrome profile that preserves your cookies, history, and authentication tokens.

Browser Automation & CDP Controller

Name: Browser Automation & CDP Controller
Author: cexll

bycexll

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1,960

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Browser Automation

Automates Chrome browsers using the DevTools Protocol to navigate pages, execute JavaScript, and capture visual data without requiring an MCP server.

This skill enables Claude to directly interact with a local Chrome instance via the Chrome DevTools Protocol (CDP), streamlining web-based tasks without the complexity of an external MCP server. It provides a suite of scripts for launching Chrome with persistent profiles, navigating URLs, executing custom JavaScript in the browser context, and capturing screenshots or specific DOM element metadata. It is particularly useful for developers needing to automate web workflows, scrape dynamic content, or perform visual inspections of web applications directly from their local environment while maintaining full control over session data.

Key Features

011,960 GitHub stars

02Visual element picking and automated screenshot capture for UI analysis

03In-browser JavaScript execution with structured JSON output for agent consumption

04Seamless navigation and multi-tab management directly from the terminal

05Persistent profile support to maintain session cookies and authenticated states

06Direct Chrome DevTools Protocol (CDP) integration for low-latency browser control

Use Cases

01Generating visual snapshots and inspecting DOM elements for frontend debugging and UI testing

02Automated web scraping of dynamic, JavaScript-heavy websites and SPAs

03Performing authenticated browser tasks like session-based data extraction and form automation

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add cexll/myclaude browser

For use in Claude.ai and ChatGPT

Download Skill