/plan-eng
Generates an engineering plan template that respects the codebase's stack and current quality bar.
When to use
- After /brief, before implementation
- The user asks for "an engineering plan", "an architecture doc", "a design doc"
- Non-trivial features (anything more than a one-file change)
Output sections
- architecture (data model, api, state)
- edge cases (forces at least 5)
- test matrix (unit, integration, e2e, perf)
- existing dependencies (auto-loaded from package.json)
- migration / rollout (flags, backfill, rollback, observability)
- review checklist (gated on /critique threshold)
Run it
dragoon plan-eng "add user invites"
dragoon plan-eng "add user invites" --apply