Anthropic's skills playbook vs our custom...

Sol LeWitt, The Location of Lines, 1975 Thariq Shihipar from Anthropic's Claude Code team recently published a thread on how they use skills internally. Hundreds of them in active use, clustering into nine categories once cataloged, from library references to runbooks to CI/CD automation. I read the thread right after publishing a post about building a knowledge layer on top of CLAUDE.md to capture repo-scoped domain context. The thread answered a question I'd been sitting with: where does deep