Addy OsmaniThe whole-site check, run from measurement rather than opinion, with the findings ordered by what they cost the user.
In the author’s words
Run an evidence-led web quality audit covering performance, accessibility, SEO, best practices, and agentic browsing. Use when asked to "audit my site", "review web quality", "run lighthouse audit", "check page quality", or "optimize my website".
The description field from SKILL.md, quoted as written.
Read it before you install it
SKILL.md · 200 lines
Install on its own
Or add it to your stack above and install everything at once.
npx skills add https://github.com/addyosmani/web-quality-skills --skill web-quality-auditTrust audit
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Goes well with
emil-design-eng
The design-engineering house style behind Sonner and Vaul.
Emil's main skill. Mostly animation, with the UI-polish and component judgement that surrounds it: what to build, how far to push it, and when to stop.
npx skills add https://github.com/emilkowalski/skills
review-animations
Reviews your motion strictly, against Emil's rules.
A production-critical pass over animation quality, timing and consistency in a diff. Pairs with improve-animations, which does the same for a whole codebase.
npx skills add https://github.com/emilkowalski/skills --skill review-animations
improve-animations
Audits every animation in a codebase and hands back prioritised plans.
Read-only on source. Surveys the motion you already ship and produces self-contained implementation plans any agent can execute, ordered by what actually matters.
npx skills add https://github.com/emilkowalski/skills --skill improve-animations
Emil Kowalski