Create Skill

Author new agent skills — and audit existing ones — against the best practices distilled from Anthropic's official Skill authoring guide and the patterns already in this repo. Output is a complete skill directory plus the agent-skills.git symlink wiring and inventory updates.

This SKILL.md is a thin index. Detailed authoring rules live in rules/*.md, worked examples in references/*.md, literal scaffolding templates in templates/*.md — all load on demand. Reading them all up-front would burn tokens you do not need yet.

Mode Detection

Parse $ARGUMENTS (first token) and detect the mode: