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Web Perf
Analyzes web performance using Chrome DevTools MCP. Measures Core Web Vitals (FCP, LCP, TBT, CLS, Speed Index), identifies render-blocking resources, network dependency chains, layout shifts, caching issues, and accessibility gaps. Use when asked to audit, profile, debug, or optimize page load performance, Lighthouse scores, or site speed.
Installation
Run this in your terminal or add to your configuration:
# Clone into your skills directory
git clone ...About this Skill
Initial release of the web-perf skill – a web performance audit tool powered by Chrome DevTools MCP.
- Audits Core Web Vitals (FCP, LCP, TBT, CLS, Speed Index) and provides detailed breakdowns.
- Identifies render-blocking resources, network dependency chains, and caching issues.
- Spots high-level accessibility gaps with a snapshot tool.
- Offers workflow and tool usage checklist for step-by-step auditing.
- Includes clear output formatting and actionable, prioritized recommendations.
- Guides analysis of codebase optimizations when source code is available; otherwise audits third-party sites externally.