This analyzes your content against Google's E-E-A-T framework (Experience, Expertise, Authority, Trust) and spits out concrete fixes to boost credibility. It'll audit what authority signals you're missing, suggest author bio improvements, recommend trust badges and schema markup, and map out a topical authority strategy with content clusters. Most useful when you're working on YMYL content (health, finance, legal) where trust signals actually move the needle. The output is structured as scorecards and checklists rather than vague advice, which is refreshing. Just remember it's pattern matching on signals, not guaranteeing rankings, and you still need real credentials to back up what it suggests adding.
npx skills add https://github.com/sickn33/antigravity-awesome-skills --skill seo-authority-builder