Cognitive session

A cognitive session scopes everything that needs to be consistent across multiple turns of an interaction. Without session state, every event would be processed from scratch with no memory of what came before in the same conversation. The session holds the trace context that links all activity traces within the interaction into a single auditable thread, the working memory references that carry over high-salience items from one turn to the next, a policy snapshot taken at session start (so policy drift during the session is a delta from a known baseline), the set of agent instances participating, and the running arbitration state. The session manager is responsible for hydrating a session from persistent storage at the start of an interaction and flushing it back at the end. Session boundaries are also where some consolidation decisions trigger: experience events accumulated during a session are batched for the consolidation pipeline when the session closes, allowing the system to treat an entire interaction as a unit of experience rather than processing each turn in isolation.