Chrome DevTools Agent Skill

Browser automation via executable Puppeteer scripts. All scripts output JSON for easy parsing.

Quick Start

CRITICAL: Always check pwd before running scripts.

Installation

Step 1: Install System Dependencies (Linux/WSL only)

On Linux/WSL, Chrome requires system libraries. Install them first:

pwd  # Should show current working directory
cd .claude/skills/chrome-devtools/scripts
./install-deps.sh  # Auto-detects OS and installs required libs

Supports: Ubuntu, Debian, Fedora, RHEL, CentOS, Arch, Manjaro

macOS/Windows: Skip this step (dependencies bundled with Chrome)

Step 2: Install Node Dependencies

npm install  # Installs puppeteer, debug, yargs

Step 3: Install ImageMagick (Optional, Recommended)

ImageMagick enables automatic screenshot compression to keep files under 5MB:

macOS:

brew install imagemagick

Ubuntu/Debian/WSL:

sudo apt-get install imagemagick

Verify:

magick -version  # or: convert -version

Without ImageMagick, screenshots >5MB will not be compressed (may fail to load in Gemini/Claude).

Test

node navigate.js --url https://example.com
# Output: {"success": true, "url": "https://example.com", "title": "Example Domain"}

Available Scripts

All scripts are in .claude/skills/chrome-devtools/scripts/

CRITICAL: Always check pwd before running scripts.

Script Usage

• ./scripts/README.md

Core Automation

• navigate.js - Navigate to URLs
• screenshot.js - Capture screenshots (full page or element)
• click.js - Click elements
• fill.js - Fill form fields
• evaluate.js - Execute JavaScript in page context

Analysis & Monitoring

• snapshot.js - Extract interactive elements with metadata
• console.js - Monitor console messages/errors
• network.js - Track HTTP requests/responses
• performance.js - Measure Core Web Vitals + record traces

Usage Patterns