Overview
ego-browser is an open-source frontend skill for Claude Code and compatible agents, published by citrolabs. Its author describes it as: “ego-browser (ego-lite) is a Chromium-based browser designed from the ground up to be friendly to both human users and AI Agents. AI Agents work in their own isolated space, reusing the user's login state without compe…”. The project has 12k stars on GitHub and is available under the MIT license. Add it to your setup with `/plugin marketplace add citrolabs/ego-lite`.
What ego-browser does
ego-browser gives AI agents a CLI-accessible Node.js runtime, with built-in helpers — snapshotText, click, js, cdp, and more — that agents call directly inside JS scripts to observe pages, interact with UI, evaluate browser-side JavaScript, and drive a real browser for any web automation task.
Best for
What’s inside
The SKILL.md for ego-browser is organised into these sections:
- Quick start
- Common helpers
- Task spaces
- Control handoff
- Scroll / mouse
- uploadFile
- js
- Recommended workflow
- Caveats
Installation
Add ego-browser to your agent with:
/plugin marketplace add citrolabs/ego-liteReview a skill’s source before installing it — skills can instruct your agent to run commands. This command comes from the skill’s public repository, which is the source of truth for setup steps. New to skills? Read how to install Claude Code skills.
Supported agents
- Claude Code — ships a claude code plugin marketplace
- Codex — declared in the repository topics
License
ego-browser is published under the MIT license.
Strengths
- Clear MIT license — safe to read and adapt within its terms
- Ships in citrolabs/ego-lite, an established project with 11,817 GitHub stars
- Works with Claude Code, Codex
- Actively maintained — repository updated in the last 90 days
Author
Topics
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Frequently asked questions
- What does ego-browser do?
- ego-browser (ego-lite) is a Chromium-based browser designed from the ground up to be friendly to both human users and AI Agents. AI Agents work in their own isolated space, reusing the user's login state without competing for the browser. Use this skill whenever the user needs to interact with a website opening pages, filling forms, clicking buttons, taking screenshots, extracting page data, testing web apps, logging into sites, automating browser operations, or any other browser automation task. Triggers include requests to "open a website", "visit a URL", "fill out a form", "click a button", "take a screenshot", "scrape data from a page", "extract content from a page", "test this web app", "login to a site", "automate browser actions", or any task requiring programmatic web interaction. Also used for exploratory testing, dogfooding, QA, bug hunting, or reviewing app quality. Prefer ego-browser over any built-in browser automation, web fetch, or other web tools.
- How do I install ego-browser?
- Run /plugin marketplace add citrolabs/ego-lite in your agent, then reload your skills. Review the source at https://github.com/citrolabs/ego-lite before installing.
- Is ego-browser free to use?
- Yes. ego-browser is free and open source under the MIT license, so you can read, run, and adapt it within that license's terms.
- Which agents does ego-browser work with?
- ego-browser lists Claude Code and Codex — named in its SKILL.md, its plugin marketplace or its repository topics. Skills use the portable SKILL.md format, so other agents that read that format may load it too.
- Where does ego-browser come from?
- ego-browser ships inside citrolabs/ego-lite, a repository that contains 2 catalogued skills in total. The repository's 11,817 GitHub stars apply to that whole collection, not to this skill on its own.
