Addy Osmani

• Accessibility (Addy Osmani)Skill

  Audits and improves web accessibility—semantics, keyboard, contrast, and ARIA practices.

• Core Web VitalsSkill

  Audits and improves Core Web Vitals (LCP, INP, CLS) with evidence-led guidance.

• Performance (Addy Osmani)Skill

  Improves web performance beyond Core Web Vitals—loading, caching, and runtime efficiency.

• Refine a rough idea into a one-page summarySkill

  This skill takes a rough idea through three phases: expanding it with variations and sharpening questions, evaluating and narrowing the options, and writing…

• Review code before mergingSkill

  This skill reviews a diff or pull request for correctness, readability, architecture, speed, and security.

• SEO (Addy Osmani)Skill

  Audits and improves technical SEO—crawlability, metadata, and on-page quality signals.

• Web quality auditSkill

  Runs an evidence-led web quality audit covering performance, accessibility, SEO, best practices, and agentic browsing.

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