Activate when the user asks "is this ready for beta?", "can we ship this?", wants a go/no-go readiness check, or asks for a beta/production readiness checklist. Produces a single point-in-time verdict (Ready / Ready with caveats / Not ready) with a blocking-items checklist -- distinct from architecture-review, which produces an ongoing ranked findings backlog across eight lenses (one of which is this same readiness question, but folded into that longer-running list).