Pre-publish SEO validator that reads your blog post and runs 40+ checks across title tags, meta descriptions, heading hierarchy, link structure, Open Graph tags, and URL formatting. Returns a pass/fail table with specific fixes for each failure. Works on local files or live URLs via WebFetch. The checklist is opinionated in useful ways: it wants question-format H2s, power words in titles, statistics in meta descriptions, and zero duplicate internal links. Also includes a FLOW evidence check that verifies every stat has a year anchor, inline citation, and source block entry. Best used right before you hit publish, when you need someone to catch the truncated title or missing og:image you would have missed.
npx skills add https://github.com/agricidaniel/claude-blog --skill blog-seo-check