addyosmani-quality
Web quality skills from Google Chrome's Addy Osmani: a measurement-first web quality audit (Lighthouse-style), accessibility (WCAG 2.2), Core Web Vitals (LCP/INP/CLS), performance, SEO, and security/modern-web best practices.
- Installs
- 180
- Last 24h
- —
- Trending rank
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- Security
- Not audited
Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/podo/design-agent-skills --skill addyosmani-quality- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads addyosmani-quality automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
addyosmani-quality
<!-- das:install:start — generated from stub.yaml by `npm run generate`; edit stub.yaml, not this block -->Catalogue stub — full package: addyosmani/web-quality-skills
Decision tree
-
Is the full skill already installed? This package installs 6 skills (
web-quality-audit,accessibility,core-web-vitals,performance,seo,best-practices); checking the first.- Global:
f=~/.agents/skills/web-quality-audit/SKILL.md; [ -f "$f" ] && ! grep -q "^das:" "$f" && echo "installed" || echo "pointer" - Project:
f=.agents/skills/web-quality-audit/SKILL.md; [ -f "$f" ] && ! grep -q "^das:" "$f" && echo "installed" || echo "pointer" installed→ the skill is installed asweb-quality-audit, invoke it and proceedpointer→ go to step 2
- Global:
-
Detect scope, then install:
[ -e ~/.agents/skills/addyosmani-quality ] && echo "global" || echo "project"Global:
npx skills add addyosmani/web-quality-skills --skill web-quality-audit accessibility core-web-vitals performance seo best-practices -g -yProject:
npx skills add addyosmani/web-quality-skills --skill web-quality-audit accessibility core-web-vitals performance seo best-practices -yClaude Code: send a command as a chat message starting with
!to run it without leaving the conversation.
Claude Code plugin route:
/plugin marketplace add addyosmani/web-quality-skills
/plugin install web-quality-skills@addy-web-quality-skills
Heads-up
- License: MIT
Invoke after install
web-quality-audit— "Lighthouse audit", "web quality", "audit my site"accessibility— "WCAG compliance", "screen reader", "keyboard nav"core-web-vitals— "LCP", "INP", "CLS", "Core Web Vitals"performance— "page speed", "loading performance"seo— "SEO", "structured data", "crawlability"best-practices— "web security", "modern APIs", "code quality"
What it does
Addy Osmani's (Google Chrome) web quality suite. Each skill is a focused, evidence-led playbook: a holistic Lighthouse-style audit (performance, accessibility, SEO, best practices, agentic browsing), WCAG 2.2 accessibility, Core Web Vitals optimization using field and lab data, loading and runtime performance, search visibility and structured data, and security and modern-web best practices. Start with web-quality-audit and drop into a focused skill for the fixes.
When NOT to use
- A single-purpose WCAG 2.2 guidance workflow (design through conformance docs) → use
wcag-ai-skill - Targeted color-contrast and accessibility fixes in code → use
fixing-accessibility - Motion-specific jank (layout thrashing, compositor properties) → use
fixing-motion-performance
FAQ
What does the addyosmani-quality skill do?
Web quality skills from Google Chrome's Addy Osmani: a measurement-first web quality audit (Lighthouse-style), accessibility (WCAG 2.2), Core Web Vitals (LCP/INP/CLS), performance, SEO, and security/modern-web best practices.
How do I install addyosmani-quality?
Run npx skills add https://github.com/podo/design-agent-skills --skill addyosmani-quality in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/addyosmani-quality/ (personal) or .claude/skills/addyosmani-quality/ (project).
Which AI agents can use addyosmani-quality?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is addyosmani-quality safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains addyosmani-quality?
It is published by podo in podo/design-agent-skills. It has 180 recorded installs.
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