If you're building Claude Code skills, this walks you through the whole setup: creating SKILL.md files, configuring skill-rules.json with trigger patterns, and using the two-hook architecture for activation. It covers guardrail skills that block actions until activated versus domain skills that just suggest themselves, plus session tracking so Claude doesn't nag you repeatedly. The 500-line rule and progressive disclosure pattern keep skills focused. Honestly most useful if you're already neck-deep in Claude Code customization and need the reference for trigger patterns and enforcement levels. Includes actual test commands and a JSON schema, which beats hunting through docs.
npx skills add https://github.com/sickn33/antigravity-awesome-skills --skill skill-developer