create-skill
Installation
SKILL.md
Create Skill
This skill guides the creation of effective skills. Authoring guidance is split across the reference files below. Read the ones the current step needs rather than all of them.
| Reference | Covers |
|---|---|
| references/principles.md | Conciseness, instructions-not-documentation, degrees of freedom |
| references/structure.md | Frontmatter, naming, descriptions, progressive disclosure, file layout |
| references/writing.md | Prose rules: terminology, phrasing, conditions, thresholds |
| references/workflows.md | Step/phase structure, feedback loops, exit signals, output patterns |
| references/composition.md | Depending on, invoking, and fanning out to other skills |
| references/tools.md | Agent, Bash, AskUserQuestion, and MCP tool invocation |
| references/evaluation.md | Evaluations and iterating on a skill from observed behavior |
| references/scripts.md | Skills that bundle executable code |
| references/harness.md | Harness tool names, permission modes, and discovery paths |
For conceptual background on how Skills work, see the Skills overview on platform.claude.com.