Module longterm_memory 

Session persistence and cross-session history diffusion.

Two trait-based extension points:

Trait	Role
SessionStore	Persist / load full chat sessions to disk
HistoryStrategy	Blend past session content into the current chat prompt

Both operate on the same Turn atom — no duplicate data model.

Structs

LogHistory

Concatenates the most recent session’s turns into a plain transcript block.

SessionConfig

Snapshot of every hot‑swappable setting at the moment a turn was recorded.

SessionData

The full serialisable payload for one session.

SessionId

Unique identifier for a session.

SessionManifest

Lightweight metadata for listing sessions (no turn payload).

SummaryHistory

Summarises past sessions via an LLM agent (Generator).

Turn

A single conversation turn. Used by both the in‑session memory layer (last N turns for context windows) and the persistence layer (all turns saved to disk).

TurnPairs

Convenience conversion from turns to role/text pairs.

TurnPerf

Performance data for a single assistant turn.

Enums

MemoryStrategyKind

Memory strategy used during a session.

TurnRole

The speaker of a conversation turn.

Traits

HistoryStrategy

Controls how past session content influences the current chat prompt.

SessionStore

Pluggable persistence for chat sessions.