Use when the user asks for /velo:hunt, gives a bug symptom, or wants Velo's structured debug loop from symptom to confirmed root cause.
Use when the user asks for /velo:new, wants to start new Velo work, or needs the full PRD -> engineering design -> review -> build workflow in Codex.
Use when the user asks for /velo:task, has a scoped implementation task, or wants the lightweight Velo build -> test -> review workflow in Codex.
Use when the user asks for /velo:yo, wants Velo advice, or wants an advisory PM/TL/DE panel before deciding whether to build.