Web Browser

When to use

• Navigate or interact with live websites.
• Click buttons, fill forms, or extract page content.
• Evaluate JavaScript in a real browser context.
• Capture screenshots for debugging or review.
• UI validation and smoke testing in a real browser.
• Measure and gate latency regressions in web-browser tools with the local benchmark scripts.

Requirements

• Run commands from codex/skills/web-browser/ (so ./tools/*.js resolves).
• Node.js (ESM + top-level await) and repo deps installed (notably puppeteer-core).
• Chrome/Chromium installed, or set CODEX_CHROME_PATH.

Quick start

# Start Chrome with CDP on :9222
./tools/start.js