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core-web-vitals

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About core-web-vitals

C

core-web-vitals

Optimize Core Web Vitals (LCP, INP, CLS) for better page experience

core-web-vitals is an agent skill for optimising the three Core Web Vitals, which are largest contentful paint (LCP), interaction to next paint (INP) and cumulative layout shift (CLS). It is aimed at improving the page experience people actually get, so it starts with field data to see the impact on real users before it looks at lab traces to diagnose the causes. Its workflow says to measure before optimising. When a runnable URL is available, the skill reads the performance measurement workflow and prefers page-level Chrome User Experience Report data at the 75th percentile, with a clearly labelled fallback to origin-level data when a page has too little traffic. It then covers each metric in turn. The skill is part of the web-quality-skills repository by Addy Osmani and is added to a compatible agent with the skills command. Its audits passed with Gen Agent Trust Hub, Socket and Snyk. It suits developers who have been asked to fix a slow page and want the fix guided by measured data rather than guesswork.

View core-web-vitalsAll AI Skills apps
Price
Free
Made by
addyosmani
Category
AI Skills
Website
github.com/addyosmani/web-quality-skills/core-web-vitals