Skill Creator
skill · v1.0.0
Create new skills, modify and improve existing skills, and measure skill performance. Guides through the full skill lifecycle: capture intent → research → write SKILL.md → test with evals → iterate. Use when creating a skill from scratch, editing an existing skill, running evals, or optimizing a skill's triggering description.
Tags: skillmetaevalcreation
Invocation contract
Inputs
skill_intent(string, required) — What the skill should do and when it should trigger.existing_skill_path(string) — Path to an existing SKILL.md to improve, if applicable.
Outputs
skill_md(string) — The written or updated SKILL.md content.eval_results(string) — Evaluation results comparing with-skill vs without-skill runs.
Side effects
writes SKILL.md filemay spawn parallel eval agents