Codification-arrow discipline: graduate stable per-agent memory facts into ROLE-scoped commons, prune the memory copy. evolutiva-memory-discipline.md §4 already defines memory->commons graduation; make it routine so durable role-shared knowledge lives once in role-commons (shared, deduped) instead of being re-derived in each agent's memory. Pairs with the two structural WIs above; ongoing per-PM hygiene, not a one-shot. Cross-fleet discipline.