What problem does it solve? Building custom Claude Code Skills requires knowing the exact SKILL.md format, YAML frontmatter rules, and directory conventions, and mistakes in any of these prevent Claude from discovering or loading your skill. ## Core Features & Use Cases - Specification Guidance: Provides the complete SKILL.md specification including required name and description fields, character limits, and YAML formatting rules. - Progressive Disclosure Architecture: Explains the 3-level loading system (metadata, SKILL.md body, referenced files) so skills scale without context bloat. - Ready-Made Templates: Includes basic, intermediate, and advanced skill templates plus real-world examples for documentation and code generation skills. - Use Case: You want to build a custom skill that generates React components for your team. Use this Skill to scaffold the directory, write a compliant SKILL.md with proper frontmatter, and organize scripts and resources correctly. ## Quick Start Ask Claude to create a new skill for your workflow, and it will generate the directory structure and SKILL.md with valid YAML frontmatter.