Skill New — Development skill for Claude Code

description: Scaffold a new skill in this repo, held to CONTRIBUTING.md's bar argument-hint:

Scaffold `skills/$1/` for a new skill in **this** repo (`claude-tool`), where `$1` is the first token of `$ARGUMENTS` and the rest describes its purpose.

Before creating anything, answer both questions from `CONTRIBUTING.md` yourself, out loud in your response — don't scaffold first and rationalize after:

1. What does it enforce? Not what it advises — what f