Illustrative cover generated by us — see the source repo for real examples.
How to use
- 1
Copy the install prompt
Click the black button. One click, done.
- 2
Paste it to your agent
Send it in Claude Code, Codex, Cursor or similar. It installs itself.
- 3
Ask in one sentence
Say what you want, like below, and the agent follows this skill.
/skill-creator make me: Writing a new skill, improving one, and testing it with evalsExample message showing how to invoke it, not a real output.
What you get
- Skill scaffolding
- Eval and benchmark loop
- Trigger-description optimisation
Good fit
- Writing a new skill, improving one, and testing it with evals
Not for
- Using skills you already have
What you need
- Python 3; description tuning needs the claude CLI
- License
- Apache-2.0
- Author
- @anthropics
- Source
- anthropics/skills/skills/skill-creator · ★ 179,820
Upstream description
Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.
Other ways to install
Prefer doing it yourself? These commands do the same as the button.
Read https://skilloop.dev/skills/skill-creator/install.md and follow the instructions to install the skill.
npx skills add https://github.com/anthropics/skills/tree/main/skills/skill-creator -g -a claude-code
npx skills add https://github.com/anthropics/skills/tree/main/skills/skill-creator -g -a codex
git clone --depth 1 https://github.com/anthropics/skills.git /tmp/skills mkdir -p ~/.claude/skills && cp -r /tmp/skills/skills/skill-creator ~/.claude/skills/skill-creator
Original work by its authors, redistributed under its license. We only link and describe it.
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