Files
deepseek-harness/packages/session
Tianyi Cui 7e445c3a67 refactor(session): fold the session family into packages/session/
git mv the 12 packages from session-persistence/, session-projection/,
session-title/, and telemetry/ into one session/ group per the
regrouping RFC; merge the four group READMEs into one bilingual
triplet; rewrite the group segment in tsconfig references (intra-group
references shorten to ../<pkg>), tsconfig.base.json paths/globs,
knip.json keys, vitest include, gate scripts, and authored doc/note
citations; regenerate module graph, doc graphs, catalogs, and the
lockfile importer keys. No npm names change.

Full unit suite: 8779 passed; the 18 reported failures reproduce as
env flakes (ambient-proxy IPv6 tunneling, watched-dir inotify
timeouts under parallel load) — each passes in isolation with
NO_PROXY set, matching their known pre-existing behavior on master.
2026-08-09 01:21:11 +08:00
..

session/ — durable session data plane

English | 中文

The durable family around core/session's live in-memory service: the persistence seam with its storage backends and checkpoint policy, the projection seam that serves whole log-derived values, log-backed titles, and outbound session telemetry. All product packages. session-query/ remains a sibling group: the read/tool surface is consumed independently of persistence internals.

Persistence

Durable session persistence, semantic checkpoint policy, and the shipped storage backends.

Package Role ctx key
session-persistence/ Defines the persistence service and shared write coordination ctx.sessionPersistence
session-checkpoint-policy/ Applies semantic durability checkpoints wraps ctx.llm and ctx.tools
session-persistence-jsonl/ Persists sessions in JSONL files registers on ctx.sessionPersistence
session-persistence-sqlite/ Persists sessions in SQLite registers on ctx.sessionPersistence

The session-persistence decision records the persistence design.

Projection

Serves current, log-derived per-session state to client carriers.

Package Role ctx key
session-projection/ Defines and drives session projection units ctx.sessionProjections
session-projection-cache/ Persists and restores projection checkpoints ctx.sessionProjectionCache

Titles

Derives durable session titles from the session log, with an optional model-backed provider.

Package Role ctx key
session-title/ Owns title state, fallback behavior, provider registration, and refresh ctx.sessionTitle
session-title-llm/ Provides shared model-backed title generation
session-title-first-message-llm/ Titles a session from its first eligible human message registers on ctx.sessionTitle
session-title-all-messages-llm/ Titles a session from all eligible human messages registers on ctx.sessionTitle

Deployments may register one model-backed provider; the service retains a deterministic fallback when none is present.

Telemetry

Projects session activity into outbound telemetry and delegates delivery to a configured reporting backend. The telemetry decision records the reporting boundary; the mode decision records immediate, feedback-gated, and disabled delivery.

Package Role
session-telemetry/ Defines capture, redaction, projection, and live or on-demand backend delivery.
session-telemetry-otel/ Delivers telemetry through OpenTelemetry logs in FULL, FEEDBACK_ONLY, or DISABLED mode.