Crate cognee_session

Expand description

Session management and QA-history storage for Cognee.

Tracks search/answer history and feedback per session so retrieval can use prior context. Trait-based so the store backend is pluggable.

SessionStore — async trait for session persistence
FsSessionStore (feature fs), RedisSessionStore, SeaOrmSessionStore — the backing implementations

Structs§

ImproveLockGuard: RAII guard that releases the improve-lock on drop.
SessionContext: Session context passed to retrievers: the session ID and any loaded conversation history (as LLM messages).
SessionManager: Orchestrates session operations using an Arc<dyn SessionStore>.
SessionQAEntry: A single question-answer entry stored in a session.
SessionQAUpdate: Partial update DTO for a QA entry.
SessionTraceStep: One agent-trace step persisted in a session — mirrors Python’s SessionAgentTraceEntry (no created_at; ordering is positional).
UsedGraphElementIds: Graph element IDs that were used to produce the answer for a Q&A entry.

SessionStore: Abstraction over session Q&A storage backends (SQLite, Redis, filesystem, etc.).

release_improve_lock: Release the improve-lock for session_id. Idempotent.
try_acquire_improve_lock: Atomically claim the improve-lock for session_id.