pagespeed-insights-read

How to read what the PageSpeed Insights MCP returns without overclaiming. Use whenever answering a question about site speed, Core Web Vitals, Lighthouse scores, LCP phases, or what to fix on a page, and whenever the pagespeed-insights MCP tools are called. Covers when a change is real, why savings must not be added together, why the four LCP phases neither sum to the LCP nor describe every visit, why lab and field…