If you're building skills for Claude, this is your blueprint. It walks through the three-part loading system (metadata, instructions, bundled resources), explains when to use scripts versus reference docs, and hammers home one rule: be ruthlessly concise because context is expensive. The progressive disclosure patterns are especially useful, showing how to split complex skills across multiple files without bloating the main instructions. Think of it as the skill that teaches you to write skills. The examples are practical (PDF processing, domain-specific organization) and the philosophy is sound: assume Claude is smart, only add what it can't already know, and treat every token like it costs something.
npx skills add https://github.com/nicepkg/ai-workflow --skill skill-creator