Audit web performance and Core Web Vitals
web-perfskillsetup L2★0
Sheshiyer/skill-clusters ↗What it does
Analyze web performance using Chrome DevTools MCP
Best for
Audit page load performance, identify render-blocking resources, and prioritize Core Web Vitals improvements
Inputs
- · Target URL
- · optional: insight names for specific metrics (LCP, CLS, network deps)
Outputs
- · Performance trace with Core Web Vitals
- · CLS culprits and layout shift sources
- · Network dependency graph
- · Accessibility snapshot
Requires
- · Chrome DevTools MCP server
- · Lighthouse scoring API
Preconditions
Chrome DevTools MCP configured; target URL accessible
Failure modes
MCP server not running; trace returns empty; third-party site (no codebase analysis)
Trust signals
- · Uses live web.dev and Chrome DevTools docs
- · Quantifies impact before recommending changes
- · Specific metric thresholds (e.g., LCP <2.5s good)