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Skill Creator

Create, test and improve your own skills, with evals and trigger tuning.

Official Anthropicby AnthropicChecked October 18, 2026

Anthropic's skill for building skills. It interviews you about the workflow, writes the SKILL.md and supporting files, and can run evaluations to measure and improve how well the skill performs and triggers.

Who it is for

  • Anyone automating a repeat task
  • Team leads
  • Developers
  • Power users

Prompts to try

Once the skill is installed, ask for the result in plain words. Claude picks the skill up on its own.

Prompt 1
Turn our weekly client report process into a skill
Prompt 2
Create a skill that writes social posts in our brand voice
Prompt 3
My skill doesn't trigger reliably, test it and fix the description

How to install it

In Claude Code

  1. /plugin install skill-creator@claude-plugins-official

In Claude.ai

Turn it on among Anthropic's example skills under Customize > Skills (code execution required), or upload its folder from anthropics/skills as a zip.

Good to know

Also bundled in the example-skills plugin of anthropics/skills.

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How we checked it

Confirmed SKILL.md at skills/skill-creator/SKILL.md in anthropics/skills via the GitHub API; skill folder last changed 2026-04-20, repo has 181,779 stars and was pushed 2026-10-09; also published as the skill-creator plugin in Anthropic's official marketplace.

Source: github.com/anthropics/skills/tree/main/skills/skill-creator

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