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How to let your agent browse with short CLI commands with Agent Browser

Install Agent Browser and have the agent open, snapshot, click and fill by element ref.

Short answer: Install: npm install -g agent-browser, then agent-browser install to get Chrome; then open a page: agent-browser open example.com; Get the accessibility tree with refs: agent-browser snapshot. All steps.

Who it is forA developer whose agent can run shell commands and needs to test a web flow.

The problemBrowser MCP servers load big tool schemas into every conversation.

The outcomeAn agent that drives a real browser with compact commands and readable snapshots.

What you need first

  • npm, Homebrew or Cargo
  • Chrome (agent-browser install downloads Chrome for Testing)

Steps

  1. Install: npm install -g agent-browser, then agent-browser install to get Chrome
  2. Open a page: agent-browser open example.com
  3. Get the accessibility tree with refs: agent-browser snapshot
  4. Act by ref: agent-browser click @e2, agent-browser fill @e3 "[email protected]", agent-browser get text @e1

Prompt for your agent

Install vercel-labs/agent-browser and use it to open http://localhost:<port>, fill the signup form with test data, submit it, and report the resulting page text.

Caveat.

Use this in your AI agent

Ask your agent

Using the Deduped MCP, get the setup steps for vercel-labs/agent-browser and "Let your agent browse with short CLI commands"

Add Deduped to Claude Code once

claude mcp add --transport http deduped https://dedupedai.com/mcp

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