Openclaw agent browser

Skill yzp100911/CrabAgent/xCrab/skills/openclaw-agent-browser

Headless browser automation CLI for AI agents. Use when interacting with websites — navigating pages, filling forms, clicking buttons, taking screenshots, extracting data, scraping, testing web apps, downloading files, or automating any browser task. Triggers on requests to "open a website", "fill out a form", "click a button", "take a screenshot", "scrape data", "test this web app", "login to a site", "monitor a page", or any task requiring programmatic web interaction.From its SKILL.md

Install

npx -y skills add yzp100911/CrabAgent --skill openclaw-agent-browser

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

3 things to look at

reads credentialsReads from 2 credential sources: `$USERNAME` and 1 more.
1 stars1 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.
runs commandsInstructs the agent to run 8 commands, including `scripts/setup.sh` and 7 more.

SKILL.md

4.1 KB, 862 tokens by cl100k_base, as published. Nobody here has run it

Browser Automation with agent-browser

Setup

Run scripts/setup.sh to install agent-browser and Chromium. Requires Node.js.

Core Workflow

Every browser automation follows this pattern:

Navigate: agent-browser open <url>
Snapshot: agent-browser snapshot -i (get element refs like @e1, @e2)
Interact: Use refs to click, fill, select
Re-snapshot: After navigation or DOM changes, get fresh refs

agent-browser open https://example.com/form
agent-browser snapshot -i
# Output: @e1 [input type="email"], @e2 [input type="password"], @e3 [button] "Submit"

agent-browser fill @e1 "[email protected]"
agent-browser fill @e2 "password123"
agent-browser click @e3
agent-browser wait --load networkidle
agent-browser snapshot -i  # Check result

Command Chaining

Chain with && when you don't need intermediate output:

agent-browser open https://example.com && agent-browser wait --load networkidle && agent-browser snapshot -i

Run separately when you need to parse output first (e.g., snapshot to discover refs).

Essential Commands

# Navigate
agent-browser open <url>
agent-browser close

# See the page (always do this first)
agent-browser snapshot -i              # Interactive elements with refs
agent-browser snapshot -i -C           # Include onclick divs

# Interact using @refs
agent-browser click @e1
agent-browser fill @e2 "text"
agent-browser select @e1 "option"
agent-browser press Enter
agent-browser scroll down 500

# Get info
agent-browser get text @e1
agent-browser get url
agent-browser get title

# Wait
agent-browser wait @e1                 # For element
agent-browser wait --load networkidle  # For network idle

# Capture
agent-browser screenshot page.png
agent-browser screenshot --full        # Full page
agent-browser pdf output.pdf

For the full command reference, see references/commands.md.

Ref Lifecycle (Important)

Refs (@e1, @e2) are invalidated when the page changes. Always re-snapshot after:

Clicking links/buttons that navigate
Form submissions
Dynamic content loading (dropdowns, modals)

Common Patterns

Form Submission

agent-browser open https://example.com/signup
agent-browser snapshot -i
agent-browser fill @e1 "Jane Doe"
agent-browser fill @e2 "[email protected]"
agent-browser select @e3 "California"
agent-browser click @e5
agent-browser wait --load networkidle

Login with State Persistence

agent-browser open https://app.example.com/login
agent-browser snapshot -i
agent-browser fill @e1 "$USERNAME" && agent-browser fill @e2 "$PASSWORD"
agent-browser click @e3
agent-browser wait --url "**/dashboard"
agent-browser state save auth.json

# Reuse later
agent-browser state load auth.json
agent-browser open https://app.example.com/dashboard

Data Extraction

agent-browser open https://example.com/products
agent-browser snapshot -i
agent-browser get text @e5
agent-browser get text body > page.txt

Screenshot & Diff

agent-browser screenshot baseline.png
# ... changes happen ...
agent-browser diff screenshot --baseline baseline.png

Parallel Sessions

agent-browser --session site1 open https://site-a.com
agent-browser --session site2 open https://site-b.com
agent-browser session list

Security (Optional)

export AGENT_BROWSER_CONTENT_BOUNDARIES=1          # Wrap output for AI safety
export AGENT_BROWSER_ALLOWED_DOMAINS="example.com"  # Domain allowlist
export AGENT_BROWSER_MAX_OUTPUT=50000               # Prevent context flooding

Cleanup

Always close sessions when done: agent-browser close

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.