If you're building skills for Claude, this is your blueprint. It walks you through the six-step creation process from understanding usage examples to packaging with the included Python scripts. The core advice is solid: keep SKILL.md under 500 lines, design for self-containment so skills work without personal configs or MCP servers, and move detailed references into separate bundled resources. It covers both Claude AI web and Claude Code CLI environments. The emphasis on progressive loading to avoid context bloat is smart, and the concrete guidance on YAML frontmatter and file organization saves you from reinventing the wheel. Worth installing before you start your first skill.
npx skills add https://github.com/jezweb/claude-skills --skill skill-creator