Leaderboard/Code Quality/web-quality-skills
Last commit on August 24, 2026·Created on January 18, 2026

addyosmani/web-quality-skills

A technical framework for auditing web accessibility, search visibility, and performance metrics.
Combined rank
#143
across all skills
In Code Quality
#4
category rank
Stars
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Forks
246
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Watchers
23
0.0% in last 7d
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TL;DR

This collection provides structured guidance for frontend engineers and accessibility specialists to improve the quality of web interfaces. It focuses on measurable standards, from WCAG 2.2 compliance and screen reader support to the optimization of Core Web Vitals.

By applying these skills, developers can systematically address page experience issues like LCP and CLS while ensuring sites are discoverable through structured data and search engine optimization.

WHO IT'S FOR
Frontend engineers
optimizing Core Web Vitals and page speed
Accessibility specialists
auditing sites for WCAG 2.2 compliance
Web performance engineers
reducing load times and fixing slow loading
Technical leads
enforcing security and code quality standards
Repository contents

6 skill files

Compatible AgentsThe repository documents support for these agents. The skills may also work with other agents that can load SKILL.md files, but they may need some setup or small changes.

Use this skill collection

Follow the documented setup, then try a first task.

Setup

Install the bundle with skills CLI

Installs: Complete Web Quality Skills repository bundle

Before you start
  • The npx command runner must already be available.
  1. Run this command in a terminal to add the complete repository bundle.

    npx skills add addyosmani/web-quality-skills
skills/seo/SKILL.md · Checked Sep 18, 2026skills/accessibility/SKILL.md · Checked Sep 18, 2026skills/performance/SKILL.md · Checked Sep 18, 2026README.md · Checked Sep 18, 2026skills/web-quality-audit/SKILL.md · Checked Sep 18, 2026skills/best-practices/SKILL.md · Checked Sep 18, 2026skills/core-web-vitals/SKILL.md · Checked Sep 18, 2026

Give it something to do.

Suggested first task

Create an initial web-quality baseline

Uses web-quality-audit

  • PAGE_URL: the runnable page to review
  • MOBILE_OR_DESKTOP: the intended audit scope
  • Optional: important page state, journey, or access constraints

Check the repository for this skill’s setup.

Use the web-quality-audit skill to audit [PAGE_URL] for web quality issues. Establish a minimal live baseline for the specified [MOBILE_OR_DESKTOP] scope, separate measured findings from source-only hypotheses, and return a short prioritized list of issues without changing files.
README.md · Checked Sep 18, 2026skills/web-quality-audit/SKILL.md · Checked Sep 18, 2026
Suggested first task

Review one page for accessibility barriers

Uses accessibility

  • PAGE_URL: the runnable page to review
  • KEYBOARD_FLOW: a short interaction to exercise, such as opening and closing the main menu
  • Optional: whether reloading would lose authenticated or user-created state

Check the repository for this skill’s setup.

Use the accessibility skill to review [PAGE_URL] for accessibility issues. Check the rendered page, accessibility-tree structure, and one specified [KEYBOARD_FLOW]; report a small prioritized set of evidence-backed findings and note which checks still require human validation. Do not change files.
skills/accessibility/SKILL.md · Checked Sep 18, 2026README.md · Checked Sep 18, 2026
Suggested first task

Check one page's technical SEO

Uses seo

  • PAGE_URL: the page to review
  • Optional: source-project path for inspecting its page template
  • Optional: Search Console evidence if already available

Check the repository for this skill’s setup.

Use the seo skill to review [PAGE_URL] for technical SEO readiness. Check rendered metadata plus available crawl, index, canonical, sitemap, and structured-data signals, then return a short prioritized list of verified issues without promising ranking changes or modifying files.
skills/seo/SKILL.md · Checked Sep 18, 2026README.md · Checked Sep 18, 2026