agent-browser
A CLI for browser automation by AI agents, implemented in fast native Rust.
Install & Use
Copy this prompt and send it to your AI assistant (Claude / Cursor / TRAE / Codex / WorkBuddy etc.) to auto-install:
Help me install this AI Skill: agent-browser. It is used for: A CLI for browser automation by AI agents, implemented in fast native Rust. Full Skill content: https://321skill.com/skills/agent-browser/raw/index.md Read that page and install it.
The prompt includes a link to the full Skill content. You can also view the full content.
This skill addresses the problem of AI agents being unable to directly interact with web pages. In practical development, agents need to perform actions like opening web pages, clicking buttons, filling forms, and taking screenshots, but traditional browser automation tools (e.g., Playwright, Puppeteer) require complex setup and programming. agent-browser provides a clean command-line interface, allowing AI agents to control the browser via natural language instructions without writing any code.
Usage is straightforward. After installation, run agent-browser install to download Chrome. Then, use agent-browser open example.com to open a page, agent-browser snapshot to get the accessibility tree, agent-browser click @e2 to click an element by its reference, agent-browser fill @e3 "test@example.com" to fill a form, agent-browser screenshot page.png to take a screenshot, and agent-browser close to close the browser. All operations are based on reference IDs generated from snapshots, avoiding the brittleness of traditional CSS selectors.
It is ideal for AI agent developers, test engineers, and full-stack developers who need browser automation capabilities, especially teams that have deployed AI agents but require interaction with web applications—for scenarios like automated testing, data scraping, form filling, and cross-platform operations. It's the perfect choice for users who need to quickly implement browser control without diving deep into programming.
It is recommended to consistently use this tool to manage browser operations to avoid the maintenance overhead of mixing multiple automation tools. Note that it primarily relies on Chrome (automatically downloaded) and does not support other browser engines. The first run requires executing agent-browser install to download Chrome. If an element is obscured (e.g., by a popup), you need to handle the obstructing element before retrying the click.
Key Features
Unlike Playwright/Puppeteer, agent-browser is a native Rust CLI with faster startup and response times. It is designed specifically for AI agents, enabling semantic-based interaction via reference IDs generated from snapshots, eliminating the need to write complex CSS/XPath selectors.
Limitations
Only supports Chrome (automatically downloads Chrome for Testing version); does not support Firefox or Edge. Building from source requires Node.js 24+ and pnpm 11+.
FAQ
Does it support other browsers?
Currently, it only supports Chrome, which is automatically downloaded via `agent-browser install`.
How do I update to the latest version?
Run `agent-browser upgrade`; it will automatically detect the installation method and perform the update.
Installation guide for AI assistants
If your AI coding assistant (Claude Code, Cursor, TRAE etc.) can see this page, send it this message to auto-install:
Visit https://321skill.com/skills/agent-browser/raw/index.md to read the original Skill definition (Markdown format) for agent-browser, and install it according to the instructions.
Raw Markdown URL for AI: /skills/agent-browser/raw/index.md