# Web Quality Skills

A stack-agnostic collection of Agent Skills that measure and improve a website's performance, accessibility, and SEO using Lighthouse, Core Web Vitals, and Chrome DevTools.

Web Quality Skills is an unofficial, measurement-first collection of Agent Skills for improving web projects against Google Lighthouse, Core Web Vitals, WCAG accessibility standards, and search-engine guidance, working with any framework including React, Vue, Angular, Svelte, Next.js, Nuxt, and Astro. Where interface guidelines describe what to build, these skills focus on how to verify that it performs, is accessible, and is discoverable.

Individual skills run live Lighthouse audits and evidence-led reviews when Chrome DevTools MCP is available, diagnose performance traces for issues affecting core loading and responsiveness metrics, apply WCAG 2.2 accessibility checks, cover modern SEO requirements, and apply general security and code-quality practices. The performance skills keep four kinds of evidence distinct: real-user field data, first-party analytics, a single controlled trace or Lighthouse run, and static source inspection, so a recommendation is not based on the wrong kind of measurement.

It is distributed as Shell scripts under the MIT license.

Website: https://github.com/addyosmani/web-quality-skills