Plugin · Development

Skill Creator

Anthropic's own tool for authoring and evaluating new skills

By Anthropic · last verified 2026-09-06

What it does

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.

Details

Marketplaceclaude-plugins-official