Design Feature

Product definition — the stage that turns an idea or a feature request into an exhaustive, checkable set of acceptance criteria, before any engineering planning happens. Docs only — no code, no branch.

Turn contract

Load and verify the canonical Turn contract (11 boxes) before ending every turn. Design-specific closure boxes (product half, capability/role matrix, expectation sweep, upsert) live only in INTERVIEW.md. Missing reference → STOP.

When to use