
Addy Osmani
Engineering lead on Chrome. Writes the performance and Core Web Vitals canon.
5 agent skills
Agent skills
core-web-vitals
LCP, INP and CLS, fixed with field and lab evidence.
Diagnose and repair page-experience regressions using real measurement rather than a guess about what got slow.
npx skills add https://github.com/addyosmani/web-quality-skills --skill core-web-vitals
PerformanceFull page & trust audit →performance
Load time, bundle size and the audit that finds where it went.
General web performance work such as "speed up my site" or "why is this slow", with the fixes ordered by payoff.
npx skills add https://github.com/addyosmani/web-quality-skills --skill performance
PerformanceFull page & trust audit →accessibility
Audit and improve accessibility against WCAG 2.2.
Contrast, keyboard navigation, screen reader support and the rest, checked against the current standard rather than a folk memory of it.
npx skills add https://github.com/addyosmani/web-quality-skills --skill accessibility
seo
Meta tags, structured data, sitemaps and search visibility.
The technical half of being found: what to emit, what crawlers do with it, and which of it actually moves ranking.
npx skills add https://github.com/addyosmani/web-quality-skills --skill seo
web-quality-audit
One evidence-led pass over performance, accessibility, SEO and best practice.
The whole-site check, run from measurement rather than opinion, with the findings ordered by what they cost the user.
npx skills add https://github.com/addyosmani/web-quality-skills --skill web-quality-audit