# Skill Creator

> Anthropic's own tool for authoring and evaluating new skills

Source: https://aistack.sh/plugin/skill-creator-plugin
Real source: https://github.com/anthropics/claude-plugins-official/tree/main/plugins/skill-creator
Author: Anthropic
Category: development
Marketplace: claude-plugins-official
Last verified: 2026-09-06

Anthropic's official plugin for creating new skills, improving existing ones, and measuring skill performance. Use it to scaffold a skill from scratch, optimize one, or benchmark it with variance analysis.

## Install

### claude-code

```
/plugin marketplace add anthropics/claude-plugins-official
/plugin install skill-creator@claude-plugins-official
```

The official marketplace registers itself automatically on Claude Code's first interactive launch, so the marketplace-add step is often a no-op; running it is still safe and works on any machine.

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From aistack.sh. Last verified 2026-09-06.