# Conflicts: # docs/event-producer-consumer.md # examples/acp-agent/tests/acp.snapshot.ts # packages/core/session/src/index.ts # packages/examples/acp-demo/src/index.ts # packages/session-persistence/session-persistence-jsonl/src/format.ts # vitest.config.ts
session-persistence/ — persistence capability family
The durable session-persistence seam and its storage backends. The interface package owns the abstract SessionPersistence service and the shared write coordinator; the backends are concrete implementations that register on ctx.sessionPersistence. All product packages.
| Package | Role | ctx key |
|---|---|---|
session-persistence/ |
Persistence seam + shared write coordinator | ctx.sessionPersistence |
session-checkpoint-policy/ |
Semantic durability barriers for agent requests and tool execution | (wraps ctx.llm / ctx.tools, listens on agent events) |
session-persistence-jsonl/ |
JSONL-sidecar persistence backend | (registers ctx.sessionPersistence) |
session-persistence-sqlite/ |
SQLite persistence backend | (registers ctx.sessionPersistence) |
The interface lives at session-persistence/session-persistence/; backends are flat siblings. A new storage backend joins here and registers on ctx.sessionPersistence. See session persistence.