Skill Creator

Creates and iterates on Claude skills through a structured workflow: captures your intent, writes the SKILL.md with proper triggering descriptions, generates test cases for objective outputs, and runs evaluation cycles to refine performance. Handles the full lifecycle from initial draft to optimization, including quantitative benchmarks and description tuning for better triggering accuracy. Most useful when you want to systematize a workflow you've been doing manually or when an existing skill isn't performing well. The evaluation framework is solid, though you'll still need to manually review outputs for subjective improvements. Saves significant time on the boilerplate and testing infrastructure.

Install to Claude Code

npx -y skills add anthropics/skills --skill skill-creator --agent claude-code