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https://github.com/deepseek-ai/deepseek-harness
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SessionPersistence grows readFrom(id, fromSeq, signal?): the non-mutating read-from-seq primitive for checkpoint consumers (the persisted projection cache folds only the tail past its watermark). Coordinator owns validation, per-id serialization, and the sequential fallback (loadStored + forward skip); SQLite implements the optional seek-capable loadStoredFrom hook (WHERE seq >= ?), JSONL stays sequential by contract. Contract suite covers suffix exactness, empty-tail, non-mutation, and cancellation; seam README (both languages) documents the method and the hook.
session-query/ — session retrieval capability family
English | 中文
Trusted exact reads, relationship traces, provider-independent semantic filtering, and SQLite full-text search over live and durable session logs.
| Package | Role | ctx key |
|---|---|---|
session-query/ |
Combined service contract with concrete logical-corpus reads, traces, and semantic filters plus abstract full-text methods | ctx.sessionQuery |
session-query-sqlite/ |
Concrete service backend with SQLite FTS5 persistent bases and live overlays | ctx.sessionQuery |
tool-session-query/ |
Workspace-authorized model-facing search, lineage, relationship, and exact event tools | — |
The query service is independent of compaction: it reads canonical lineage, surface operations, logged provenance, and semantic event text but does not participate in compaction policy or execution. One abstract service combines every query operation, one concrete backend owns the full-text lifecycle without a provider registry or coordinator, and the consumer leaves oversized plain-text results to the generic post-execute spill policy.