web-performance-reviewer

Review web frontends for performance issues by driving the rendered site through Chrome DevTools MCP — throttled performance traces, Core Web Vitals judged against thresholds, network waterfall analysis, and heap-snapshot leak checks for SPAs. Composes on top of web-static or web-components. Strictly opt-in — never part of the standard verification loop; "verify the site" and "is it green" stay with web-static. Use whenever a site or SPA must be measured for speed: triggers on "performance review", "review performance", "core web vitals", "LCP", "CLS", "INP", "lighthouse performance", "performance trace", "why is this slow", "is it fast", "page weight", "audit performance", "memory leak", "before publishing, check performance". Not for fixing — only for measuring, identifying, and prioritizing issues.