Blog SEO Check -- Post-Writing Validation

Runs a comprehensive on-page SEO validation against a completed blog post and generates a pass/fail checklist with specific fixes for each failure. Designed to run after writing - catches issues before publishing.

Workflow

Step 1: Read Content

Read the target file and extract:

• Frontmatter - title, description, date, lastUpdated, author, tags, canonical, og:image, slug/URL
• Heading structure - H1, H2, H3 hierarchy with full text
• Links - All internal and external links with anchor text
• Meta tags - OG tags, Twitter Card tags, canonical URL
• Body content - Full text for keyword and structural analysis

If the user provides a URL instead of a file path, use WebFetch to retrieve