Turn unresolved or contradictory behavior, contract, or policy gaps into one canonical implementation-safe decision set, then persist the result in DECISIONS.md and TASK_STATE.md as explicit reviewable proposals (not silent intent changes). Use when key ambiguities have already been identified, the task has enough facts to compare options safely, contradictory rules or assumptions or interpretations still exist, and planning cannot proceed safely until one canonical rule set is established. Do not use when the task is still missing basic factual context, the current need is broad discovery or impact analysis, or there are still unanswered decision questions that must be r…