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docs(rfc): record Zstandard JSONL framing

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Tianyi Cui
2026-07-20 00:06:39 +08:00
parent d139948ed2
commit bec7ad544b
10 changed files with 127 additions and 5 deletions
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docs/architecture.md
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@@ -136,7 +136,7 @@ The session log is the source of truth. `deriveMessages()` projects session even
**Model-visible ⟺ logged**: the log reconstructs every request — messages at `step/start` fronted by the header's session prefix, headers by folding `request/header` — and dev invariants assert this ([reconstructability RFC](rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)).
Durability is a plugin concern. Persistence backends buffer synchronous `session/event` notifications and the loop awaits a turn-end checkpoint before moving on. The `SessionPersistence` seam stores `SessionEvent` directly, with metadata in `SessionHeader`; JSONL and SQLite share one contract suite.
Durability is a plugin concern. Backends buffer synchronous `session/event` notifications; the loop awaits a turn-end checkpoint. `SessionPersistence` stores `SessionEvent` directly and metadata in `SessionHeader`; JSONL defaults to checksummed Zstandard, with SQLite under one contract.
### Model Content