feature-define

Creates the two artifacts every project feature MUST have:

1. ai-context/features/<slug>.md — the authoritative domain knowledge.
2. .claude/skills/<slug>/SKILL.md — the antenna that activates on triggers and forces a read of the markdown.

Both are scaffolded from skills/_templates/feature/ in the global agent-config repo. The antenna is a pure pointer — it never duplicates markdown content.

Triggers: /feature-define, define feature, nueva feature, documentar feature, documentar funcionalidad, new feature scaffolding