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.