Comprehensive deep-dive documentation review process for claude-skills repository. Use this skill when investigating suspected issues in a skill, major package version updates detected (e.g., better-auth 1.x → 2.x), skill last verified >3 months ago, before marketplace submission, or when examples seem outdated. Performs systematic 9-phase audit: pre-review setup, standards compliance, official docs verification (Context7/WebFetch), code examples audit, cross-file consistency, dependency versi