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Skill Creator

Build, test, and fine-tune your own AI skills — no guesswork.

Skill Creator is an official Anthropic skill for making new skills and improving the ones you already have. It walks you from a rough idea to a working draft, runs real tests, measures how well the skill performs, and tightens its wording so it triggers at the right moments — turning a hunch into a reliable, reusable skill.

What it does

  • Walks you through building a brand-new skill from a plain-language idea.
  • Edits and optimizes skills you already have.
  • Runs test prompts and benchmarks so you can see how the skill actually performs.
  • Sharpens a skill’s description so it activates at the right time — not the wrong one.

Works with

  • Create
  • Improve
  • Test

What's in the download

  • SKILL.md — the skill itself, ready to install.
  • Evaluation scripts and helper agents for testing and grading skills.
  • Reference schemas and a packaging tool to ship your finished skill.

How to install (2 minutes)

  1. 1Download the .zip and unzip it — you’ll get a folder called skill-creator.
  2. 2In the Claude app: open Settings → Capabilities → Skills, choose Add / Upload, and select the folder (or the .zip).
  3. 3In Claude Code: drop the folder into your project’s .claude/skills/ directory, then type /skills to confirm it loaded.
  4. 4That’s it — ask Claude to create or improve a skill and it takes it from there.

Want to get the most out of your new skill?

Inside Hands-On AI Club we show you exactly how to use skills like this in real work — with step-by-step courses and a community to help you.