This is the skill for creating skills. If you're building a custom skill for Claude, this walks you through the structure: the required SKILL.md with frontmatter and instructions, optional bundled resources like scripts and reference docs, and the progressive disclosure model that keeps context lean. The core advice is ruthlessly practical: assume Claude is already smart, only add what it genuinely needs, and use the three-level loading system (metadata, skill body, resources) to avoid bloating the context window. It covers when to use scripts versus text instructions, how to organize reference materials, and why you shouldn't create auxiliary documentation files. Worth reading if you're writing your first skill or wondering why yours keeps getting skipped.
npx skills add https://github.com/vercel-labs/json-render --skill skill-creator