skill-creator

How to install skill-creator

npx skills add anthropics/skills --skill skill-creator -a claude-code

The skills CLI copies this one skill into Claude Code (use -a for another agent). Or read its SKILL.md on GitHub.

What the SKILL.md says

A skill for creating new skills and iteratively improving them. At a high level, the process of creating a skill goes like this: Decide what you want the skill to do and roughly how it should do it. Write a draft of the skill. Create a few test prompts and run claude-with-access-to-the-skill on them. Help the user evaluate the results both qualitatively and quantitatively. While the runs happen in the background, draft some quantitative evals if there aren't any (if there are some, you can either use as is or modify if you feel something needs to change about them). Then explain them to the user (or if they already existed, explain the ones that already exist). Use the eval-viewer/generate_review.py script to show the user the results for them to look at, and also let them look at the quantitative metrics.

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