This is a comprehensive SEO audit framework that walks you through technical, on-page, content, and off-page issues in the right order. It's opinionated about sequence (fix crawlability before you optimize titles) and comes with detailed checklists covering robots.txt, sitemaps, Core Web Vitals, schema, and backlinks. The output maps each issue to a specific skill and prioritizes blockers versus nice-to-haves. Use this when you inherit a site and need to know what's broken, or when you're trying to figure out why pages aren't ranking. It assumes quarterly full audits and monthly check-ins, which feels about right for most sites.
npx skills add https://github.com/kostja94/marketing-skills --skill seo-audit