SEO On-Page: Twitter Cards Owns X/Twitter Card writing and implementation rules. page-metadata owns the full-page lifecycle and release verification. Platforms may use Open Graph fallbacks, so define X-specific copy only when it adds value. When invoking : On first use , if helpful, open with 1–2 sentences on what this skill covers and why it matters, then provide the main output. On subsequent use or when the user asks to skip, go directly to the main output. Scope (Social Sharing) - Twitter Cards : X-specific meta tags; control how links appear when shared on X/Twitter Card Types | Type | U…