Wave 3: the plan protocol collapses to one re-callable mermaid plan_init (seven mutation tools deleted by design; statuses derive from quiz checks; live quiz-nodeId validation with mid-turn retry). The steer-starvation arc: steers deliver coalesced with the learner's answer (claimSteers), persist dedupes same-id continuation copies, jobs settle-sync defers while a turn is busy. Research steers gain the collapsed full-brief affordance. Model reasoning effort set to minimal across roles.