What do you need?
│
├─ Take a screenshot of a page?
│  └─ agent-browser open [url] && agent-browser screenshot
│
├─ Fill out a form?
│  └─ open → snapshot -i → fill @ref → click @submit → snapshot
│
├─ Test a login flow?
│  └─ See references/authentication.md
│
├─ Run an E2E test?
│  └─ See references/testing-patterns.md
│
├─ Scrape page content?
│  └─ agent-browser open [url] && agent-browser snapshot -i
│
└─ Debug element targeting?
   └─ agent-browser snapshot -i --format json

# Install agent-browser globally
npm install -g agent-browser

# Install browser dependencies (Chromium)
agent-browser install

# Verify installation
agent-browser --version

# Take a snapshot with interactive elements labeled
agent-browser snapshot -i

# Output shows refs:
# @e1: [button] "Sign In"
# @e2: [input] Email field
# @e3: [input] Password field
# @e4: [button] "Submit"

# Use refs to interact
agent-browser click @e1
agent-browser fill @e2 "user@example.com"

# 1. Open the target URL
agent-browser open https://example.com

# 2. Take a snapshot to see the page and get refs
agent-browser snapshot -i

# 3. Interact with elements using refs
agent-browser click @e1
agent-browser fill @e2 "test value"

# 4. Take another snapshot to verify changes
agent-browser snapshot -i

agent-browser open <url>              # Navigate to URL
agent-browser back                    # Go back
agent-browser forward                 # Go forward
agent-browser refresh                 # Reload page

agent-browser snapshot                # Text snapshot
agent-browser snapshot -i             # With interactive refs
agent-browser snapshot --format json  # JSON output
agent-browser screenshot [path]       # Save screenshot

agent-browser click @ref              # Click element
agent-browser fill @ref "value"       # Fill input field
agent-browser select @ref "option"    # Select dropdown option
agent-browser hover @ref              # Hover over element
agent-browser press Enter             # Press keyboard key

agent-browser find role button "Submit"    # Find by ARIA role
agent-browser find text "Welcome"          # Find by visible text
agent-browser find label "Email"           # Find by label

agent-browser wait visible @ref            # Wait for element visible
agent-browser wait hidden @ref             # Wait for element hidden
agent-browser wait network                 # Wait for network idle
agent-browser wait time 2000               # Wait milliseconds

agent-browser session save mystate         # Save browser state
agent-browser session load mystate         # Load saved state
agent-browser session list                 # List saved sessions
agent-browser close                        # Close browser

*.state
agent-browser-profile/
.agent-browser/
screenshots/

# Research a topic, then verify claims on websites
parallel_research.py chat "Find pricing for Acme Corp"
# Then use agent-browser to verify on their actual pricing page
agent-browser open https://acme.com/pricing
agent-browser snapshot -i

# Take baseline screenshots for visual regression
agent-browser open https://myapp.com
agent-browser screenshot baseline.png

# After changes, compare
agent-browser screenshot current.png
# Use image comparison tool

# Load test data from Google Sheets, run form tests
import subprocess
test_data = get_sheet_data("Form Test Cases")
for row in test_data:
    subprocess.run(["agent-browser", "fill", "@email", row["email"]])
    subprocess.run(["agent-browser", "fill", "@password", row["password"]])
    subprocess.run(["agent-browser", "click", "@submit"])

# Open the registration page
agent-browser open https://example.com/register

# Get element refs
agent-browser snapshot -i

# Fill the form (refs from snapshot output)
agent-browser fill @e1 "John Doe"
agent-browser fill @e2 "john@example.com"
agent-browser fill @e3 "SecurePass123!"
agent-browser select @e4 "United States"
agent-browser click @e5  # Terms checkbox
agent-browser click @e6  # Submit button

# Wait for navigation and verify
agent-browser wait network
agent-browser snapshot -i

# Take confirmation screenshot
agent-browser screenshot registration-success.png