| name | skill-builder |
| description | Create Claude Code skills with best practices, structure, validation, and testing. Use when designing or refining skills, prompts, references, or supporting files. |
| disable-model-invocation | true |
Skill Builder
Create, validate, and refine Claude Code skills.
Quick Start
- Gather the capability, triggers, and required domain knowledge.
- Choose a simple single-file skill or a multi-file skill with references.
- Write
SKILL.md with concise, trigger-focused instructions.
- Add reference files only for detail that would otherwise bloat
SKILL.md.
- Validate YAML frontmatter, file layout, and naming.
- Test the skill with the natural language users are likely to say.
Workflow
- Start with requirements and scope control.
- Design the structure before writing content.
- Keep descriptions in third person and include trigger keywords.
- Use progressive disclosure for long examples, templates, and validation details.
Validation
- Keep
SKILL.md under 500 lines.
- Prefer one-level reference links.
- Avoid time-sensitive guidance.
- Confirm frontmatter is valid YAML.
- Check that any
allowed-tools entries are necessary and correct.
Advanced Reference
For the full workflow, templates, examples, and validation checklist, see references/skill-builder-guide.md.