Anthropic Publishes Official Skills Guide — How...

name: sprint-planner description: Manages Linear project workflows. Use when user mentions "sprint" or "create tasks". **Progressive Disclosure** in three levels minimizes token usage: 1. **Frontmatter** — always in system prompt (decides when to trigger) 2. **SKILL.md body** — loaded when relevant (actual instructions) 3. **Linked files** — explored only when needed (detailed references) ## What Soul Spec Does Soul Spec defines an agent's **identity**: my-agent/ ├── soul.json # Metadata (name,