I think AI coding assistants need an "npm" for reusable skills. I'm building one.

I've been using multiple AI coding assistants (Claude Code, Cursor, Codex, Copilot, Gemini CLI, Windsurf, etc.) over the past few months, and I noticed the same problem everywhere.

Every assistant has its own way of defining skills, rules, or prompts.

Claude Code → Skills

Cursor → Rules

GitHub Copilot → Instructions