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agent-browser

agent-browser is the agent skill for Vercel Labs' browser automation CLI: a native Rust tool that lets an agent open pages, read accessibility snapshots and click, fill and screenshot by element reference.

Agent skill by Vercel Official · Updated

Install agent-browser

Install the skill with the skills CLI

Terminal
npx skills add vercel-labs/agent-browser --skill agent-browser

Install the agent-browser CLI, which the skill drives

Terminal
npm install -g agent-browser

Download Chrome for Testing the first time

Terminal
agent-browser install

Or paste this into your coding agent: Install the agent skill agent-browser from github.com/vercel-labs/agent-browser. A skill can include scripts that run on your computer, so read its source first.

What agent-browser does

agent-browser is the skill that ships with Vercel Labs' browser CLI of the same name. The CLI drives Chrome or Chromium over the DevTools protocol without Playwright or Puppeteer. The agent opens a page, takes an accessibility-tree snapshot, and acts on short references such as @e2 to click, fill, read text or take screenshots, then snapshots again after the page changes.

The SKILL.md in the repository is deliberately thin. It points the agent to agent-browser skills get core, which prints workflows and troubleshooting from the installed CLI, so the instructions always match the version on your machine. Specialized guides load the same way for Electron desktop apps such as VS Code or Slack, Slack workspaces, exploratory QA, deriving an API client from recorded traffic, Vercel Sandbox and AWS Bedrock AgentCore browsers.

The CLI itself covers sessions, a vault for saved logins, persistent profiles, state encryption, network inspection, accessibility audits, React and Web Vitals checks, and video recording. An observability dashboard on port 4848 shows running sessions, and an MCP server mode exists for clients that prefer tools over shell commands.

When to use agent-browser

  • You want your agent to log in to a web app and test a flow end to end.
  • You need data pulled from a page that only renders with JavaScript.
  • You want an agent to click through an Electron app such as Slack or VS Code.
  • You want browser instructions that stay in step with the installed tool version.

When to pick something else

  • Writing Playwright test files for your repo: Microsoft's Playwright CLI skill generates Playwright tests.

What agent-browser needs

  • The agent-browser CLI (npm, Homebrew or Cargo)
  • Chrome, downloaded by agent-browser install or detected if already present

Which agents agent-browser works in

Vercel documents agent-browser for Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, Goose, OpenCode, Windsurf. The open skills CLI also installs it into 78 agents, including Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode (we listed it with the CLI on October 1, 2026). See where each agent looks for skills.

The SKILL.md is a stub: it tells the agent to run agent-browser skills get core and load the real instructions from the installed CLI, so the agent needs shell access and the CLI on its path.

agent-browser license

agent-browser is published under Apache-2.0.

  • Firecrawl: firecrawl is Firecrawl's agent skill for live web work through its CLI: the agent searches the web, scrapes pages to clean markdown, maps and crawls sites, and interacts with pages that need clicks or logins. (643 repository stars on October 2, 2026)

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