S
skill-creator
byanthropics·#15 trending
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…
139,700stars
First seenJan 19, 2026
Installation
Send this command to your AI agent:
npx skills add https://github.com/anthropics/skills --skill skill-creatorDocumentation
Create, test, and iteratively improve AI agent skills with structured evaluation and benchmarking.
- Guides you through the full skill development lifecycle: intent capture, drafting, test case creation, evaluation, and iteration based on user feedback
- Runs parallel test cases with and without the skill to measure impact, capturing timing and token usage for quantitative comparison
- Generates an interactive browser-based reviewer showing outputs, qualitative feedback, and benchmark metrics (pass rates, latency, token efficiency) across iterations
- Includes description optimization to improve skill triggering accuracy by testing 20 realistic trigger/non-trigger queries and iterating the description through up to 5 rounds