name: agent-browser description: Headless browser automation via CLI for web scraping, UI testing, and automated workflows. Use when tasks require navigating websites, interacting with page elements (clicking, typing, form filling), taking screenshots, verifying page content, or performing end-to-end browser automation. Assumes agent-browser is installed globally.

Agent Browser

Control a headless browser via CLI. Use --json flag for machine-readable output.

Core Workflow

1. Navigate to target URL
2. Snapshot to get accessibility tree with element refs (@e1, @e2, etc.)
3. Act using refs for deterministic element selection
4. Re-snapshot after page changes

agent-browser open "https://example.com"
agent-browser snapshot -i -c    # interactive elements only, compact
agent-browser click @e3
agent-browser snapshot -i -c    # re-snapshot after interaction

Selectors

Prefer refs from snapshots for reliability:

• @e1 - Ref from accessibility tree (most reliable)
• text=Submit - By text content
• #id / .class - CSS selectors
• xpath=//button - XPath

Common Patterns

Form Interaction

agent-browser fill @e5 "user@example.com"
agent-browser fill @e6 "password123"
agent-browser click @e7
agent-browser wait --url "/dashboard"

UI Verification

agent-browser is visible "#success-message"
agent-browser get text ".error-message"
agent-browser get count ".list-item"
agent-browser get attr @e2 "disabled"

Screenshots & PDFs

agent-browser screenshot ./page.png
agent-browser screenshot --full ./fullpage.png
agent-browser pdf ./document.pdf

Wait Patterns

agent-browser wait "#loading"              # Wait for element
agent-browser wait 2000                    # Wait ms
agent-browser wait --text "Success"        # Wait for text
agent-browser wait --load networkidle     # Wait for network

Sessions (Parallel Isolation)

agent-browser --session test1 open "https://example.com"
agent-browser --session test2 open "https://other.com"
agent-browser session list

Authentication

# Set headers for API auth
agent-browser --headers '{"Authorization": "Bearer token"}' open "https://api.example.com"

# Save/restore auth state
agent-browser state save ./auth.json
agent-browser state load ./auth.json

Network Mocking

agent-browser network route "**/api/users" --body '{"users": []}'
agent-browser network route "**/ads/*" --abort

Snapshot Tips

Always use -i -c for cleaner output when interacting.

Reference

Full command reference: references/commands.md