feat: sync agent-browser skill with upstream vercel-labs/agent-browser
Update SKILL.md to match the latest upstream skill from vercel-labs/agent-browser, adding substantial new capabilities: - Authentication (auth vault, profiles, session persistence, state files) - Command chaining, annotated screenshots, diffing - Security features (content boundaries, domain allowlist, action policy) - iOS Simulator support, Lightpanda engine, downloads, clipboard - JS eval improvements (--stdin, -b for shell safety) - Timeout guidance, config files, session cleanup Add 7 reference docs (commands, authentication, snapshot-refs, session-management, video-recording, profiling, proxy-support) and 3 ready-to-use shell templates. Kept our YAML frontmatter, setup check section, and Playwright MCP comparison table which are unique to our plugin context.
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Trevin Chow
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# Command Reference
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Complete reference for all agent-browser commands. For quick start and common patterns, see SKILL.md.
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## Navigation
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```bash
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agent-browser open <url> # Navigate to URL (aliases: goto, navigate)
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# Supports: https://, http://, file://, about:, data://
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# Auto-prepends https:// if no protocol given
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agent-browser back # Go back
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agent-browser forward # Go forward
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agent-browser reload # Reload page
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agent-browser close # Close browser (aliases: quit, exit)
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agent-browser connect 9222 # Connect to browser via CDP port
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```
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## Snapshot (page analysis)
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```bash
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agent-browser snapshot # Full accessibility tree
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agent-browser snapshot -i # Interactive elements only (recommended)
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agent-browser snapshot -c # Compact output
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agent-browser snapshot -d 3 # Limit depth to 3
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agent-browser snapshot -s "#main" # Scope to CSS selector
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```
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## Interactions (use @refs from snapshot)
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```bash
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agent-browser click @e1 # Click
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agent-browser click @e1 --new-tab # Click and open in new tab
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agent-browser dblclick @e1 # Double-click
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agent-browser focus @e1 # Focus element
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agent-browser fill @e2 "text" # Clear and type
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agent-browser type @e2 "text" # Type without clearing
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agent-browser press Enter # Press key (alias: key)
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agent-browser press Control+a # Key combination
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agent-browser keydown Shift # Hold key down
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agent-browser keyup Shift # Release key
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agent-browser hover @e1 # Hover
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agent-browser check @e1 # Check checkbox
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agent-browser uncheck @e1 # Uncheck checkbox
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agent-browser select @e1 "value" # Select dropdown option
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agent-browser select @e1 "a" "b" # Select multiple options
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agent-browser scroll down 500 # Scroll page (default: down 300px)
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agent-browser scrollintoview @e1 # Scroll element into view (alias: scrollinto)
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agent-browser drag @e1 @e2 # Drag and drop
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agent-browser upload @e1 file.pdf # Upload files
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```
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## Get Information
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```bash
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agent-browser get text @e1 # Get element text
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agent-browser get html @e1 # Get innerHTML
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agent-browser get value @e1 # Get input value
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agent-browser get attr @e1 href # Get attribute
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agent-browser get title # Get page title
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agent-browser get url # Get current URL
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agent-browser get cdp-url # Get CDP WebSocket URL
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agent-browser get count ".item" # Count matching elements
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agent-browser get box @e1 # Get bounding box
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agent-browser get styles @e1 # Get computed styles (font, color, bg, etc.)
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```
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## Check State
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```bash
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agent-browser is visible @e1 # Check if visible
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agent-browser is enabled @e1 # Check if enabled
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agent-browser is checked @e1 # Check if checked
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```
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## Screenshots and PDF
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```bash
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agent-browser screenshot # Save to temporary directory
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agent-browser screenshot path.png # Save to specific path
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agent-browser screenshot --full # Full page
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agent-browser pdf output.pdf # Save as PDF
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```
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## Video Recording
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```bash
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agent-browser record start ./demo.webm # Start recording
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agent-browser click @e1 # Perform actions
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agent-browser record stop # Stop and save video
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agent-browser record restart ./take2.webm # Stop current + start new
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```
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## Wait
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```bash
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agent-browser wait @e1 # Wait for element
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agent-browser wait 2000 # Wait milliseconds
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agent-browser wait --text "Success" # Wait for text (or -t)
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agent-browser wait --url "**/dashboard" # Wait for URL pattern (or -u)
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agent-browser wait --load networkidle # Wait for network idle (or -l)
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agent-browser wait --fn "window.ready" # Wait for JS condition (or -f)
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```
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## Mouse Control
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```bash
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agent-browser mouse move 100 200 # Move mouse
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agent-browser mouse down left # Press button
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agent-browser mouse up left # Release button
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agent-browser mouse wheel 100 # Scroll wheel
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```
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## Semantic Locators (alternative to refs)
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```bash
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agent-browser find role button click --name "Submit"
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agent-browser find text "Sign In" click
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agent-browser find text "Sign In" click --exact # Exact match only
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agent-browser find label "Email" fill "user@test.com"
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agent-browser find placeholder "Search" type "query"
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agent-browser find alt "Logo" click
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agent-browser find title "Close" click
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agent-browser find testid "submit-btn" click
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agent-browser find first ".item" click
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agent-browser find last ".item" click
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agent-browser find nth 2 "a" hover
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```
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## Browser Settings
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```bash
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agent-browser set viewport 1920 1080 # Set viewport size
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agent-browser set viewport 1920 1080 2 # 2x retina (same CSS size, higher res screenshots)
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agent-browser set device "iPhone 14" # Emulate device
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agent-browser set geo 37.7749 -122.4194 # Set geolocation (alias: geolocation)
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agent-browser set offline on # Toggle offline mode
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agent-browser set headers '{"X-Key":"v"}' # Extra HTTP headers
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agent-browser set credentials user pass # HTTP basic auth (alias: auth)
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agent-browser set media dark # Emulate color scheme
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agent-browser set media light reduced-motion # Light mode + reduced motion
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```
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## Cookies and Storage
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```bash
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agent-browser cookies # Get all cookies
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agent-browser cookies set name value # Set cookie
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agent-browser cookies clear # Clear cookies
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agent-browser storage local # Get all localStorage
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agent-browser storage local key # Get specific key
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agent-browser storage local set k v # Set value
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agent-browser storage local clear # Clear all
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```
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## Network
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```bash
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agent-browser network route <url> # Intercept requests
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agent-browser network route <url> --abort # Block requests
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agent-browser network route <url> --body '{}' # Mock response
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agent-browser network unroute [url] # Remove routes
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agent-browser network requests # View tracked requests
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agent-browser network requests --filter api # Filter requests
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```
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## Tabs and Windows
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```bash
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agent-browser tab # List tabs
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agent-browser tab new [url] # New tab
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agent-browser tab 2 # Switch to tab by index
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agent-browser tab close # Close current tab
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agent-browser tab close 2 # Close tab by index
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agent-browser window new # New window
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```
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## Frames
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```bash
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agent-browser frame "#iframe" # Switch to iframe
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agent-browser frame main # Back to main frame
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```
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## Dialogs
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```bash
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agent-browser dialog accept [text] # Accept dialog
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agent-browser dialog dismiss # Dismiss dialog
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```
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## JavaScript
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```bash
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agent-browser eval "document.title" # Simple expressions only
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agent-browser eval -b "<base64>" # Any JavaScript (base64 encoded)
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agent-browser eval --stdin # Read script from stdin
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```
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Use `-b`/`--base64` or `--stdin` for reliable execution. Shell escaping with nested quotes and special characters is error-prone.
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```bash
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# Base64 encode your script, then:
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agent-browser eval -b "ZG9jdW1lbnQucXVlcnlTZWxlY3RvcignW3NyYyo9Il9uZXh0Il0nKQ=="
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# Or use stdin with heredoc for multiline scripts:
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cat <<'EOF' | agent-browser eval --stdin
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const links = document.querySelectorAll('a');
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Array.from(links).map(a => a.href);
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EOF
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```
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## State Management
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```bash
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agent-browser state save auth.json # Save cookies, storage, auth state
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agent-browser state load auth.json # Restore saved state
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```
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## Global Options
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```bash
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agent-browser --session <name> ... # Isolated browser session
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agent-browser --json ... # JSON output for parsing
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agent-browser --headed ... # Show browser window (not headless)
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agent-browser --full ... # Full page screenshot (-f)
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agent-browser --cdp <port> ... # Connect via Chrome DevTools Protocol
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agent-browser -p <provider> ... # Cloud browser provider (--provider)
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agent-browser --proxy <url> ... # Use proxy server
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agent-browser --proxy-bypass <hosts> # Hosts to bypass proxy
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agent-browser --headers <json> ... # HTTP headers scoped to URL's origin
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agent-browser --executable-path <p> # Custom browser executable
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agent-browser --extension <path> ... # Load browser extension (repeatable)
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agent-browser --ignore-https-errors # Ignore SSL certificate errors
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agent-browser --help # Show help (-h)
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agent-browser --version # Show version (-V)
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agent-browser <command> --help # Show detailed help for a command
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```
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## Debugging
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```bash
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agent-browser --headed open example.com # Show browser window
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agent-browser --cdp 9222 snapshot # Connect via CDP port
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agent-browser connect 9222 # Alternative: connect command
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agent-browser console # View console messages
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agent-browser console --clear # Clear console
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agent-browser errors # View page errors
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agent-browser errors --clear # Clear errors
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agent-browser highlight @e1 # Highlight element
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agent-browser inspect # Open Chrome DevTools for this session
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agent-browser trace start # Start recording trace
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agent-browser trace stop trace.zip # Stop and save trace
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agent-browser profiler start # Start Chrome DevTools profiling
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agent-browser profiler stop trace.json # Stop and save profile
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```
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## Environment Variables
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```bash
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AGENT_BROWSER_SESSION="mysession" # Default session name
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AGENT_BROWSER_EXECUTABLE_PATH="/path/chrome" # Custom browser path
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AGENT_BROWSER_EXTENSIONS="/ext1,/ext2" # Comma-separated extension paths
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AGENT_BROWSER_PROVIDER="browserbase" # Cloud browser provider
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AGENT_BROWSER_STREAM_PORT="9223" # WebSocket streaming port
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AGENT_BROWSER_HOME="/path/to/agent-browser" # Custom install location
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```
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