Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.
Initial release – provides a structured guide for creating effective skills that extend Claude's capabilities. - Introduces the concept and anatomy of a skill, including SKILL.md metadata and optional bundled resources (scripts, references, assets). - Establishes core principles: conciseness, context efficiency, and appropriate specificity (“degrees of freedom” for instructions). - Details best practices for organizing content and supporting progressive disclosure to minimize context window usage. - Specifies which file types to include and which to avoid in a skill package. - Offers guidance and patterns for structuring multi-domain or complex skills using modular reference files.