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skill-creator

Official · Anthropic

Installation

Terminal

git clone --depth 1 https://github.com/anthropics/claude-plugins-official.git /tmp/skill-creator-src
cp -r /tmp/skill-creator-src/plugins/skill-creator/skills/skill-creator ~/.claude/skills/skill-creator

Or .claude/skills/skill-creator to scope it to one repo.

Summary

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.

Skill Creator 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/generatereview.py script to show the user the results for them to look at, and also let them look at the quantitative metrics - Rewrite the skill based on feedback from the user's evaluatio…

Questions

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.

Claude Code: ~/.claude/skills/skill-creator. Codex: ~/.agents/skills/skill-creator. Antigravity: ~/.gemini/config/skills/skill-creator. Use .claude/skills or .agents/skills inside a repo to scope it to one project.

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