Tianyi Cui
aa0ca6c836
core.md read as a type grab-bag: LLM wire vocabulary up front, the agent/loop story buried, and no correspondence to packages/core. It now opens on the packages/core control spine — the package-by-package loop map with a Page column into session/system-prompt/tools/scope — and keeps only what the spine group declares plus the repo-wide patterns: the Agent handle with its delivery/cancellation/interception contracts, the SessionEvent envelope, branded ids, the …Map pattern. The conversation vocabulary (Message/ContentBlock, the model request, adapters — 17 type-equiv blocks) moves to llm-streaming.md, which now declares packages/llm end-to-end; the duplicate ContentBlockMap paste near its seam section folds into the moved section, and the manifest, LINK_MAP, README table rows, website label (Core data structures → Core), and inbound anchors follow. Every packages/<group>/README pair is now a thin front door in one shape: a why-first intro (bash's seam-pattern-first paragraph rewritten as 'shell execution for the agent'), the package table, and a closing pointer to the owning docs/subsystems page — the bash-style table stays the load-bearing middle. Load-bearing trailing paragraphs relocate rather than vanish: the fs no-timeout rationale becomes a filesystem.md section (both languages), session's four sectioned tables merge into one 12-row table, examples' legacy-bin H2 collapses to a pointer at jsonrpc-demo's README, and design rationale that already lives in an Agent Note or subsystem page is now linked instead of restated. All 40 pair records re-recorded.
3.5 KiB
3.5 KiB
session/：持久会话数据平面
English | 中文
围绕 core/session 常驻内存实时服务的持久家族：持久化 seam 连同其存储后端与检查点策略、供出日志派生全量值的投影 seam、日志支持的标题，以及外发会话遥测。全部都是产品包（package）。session-query/ 仍是同级独立组：读取／工具面的消费不依赖持久化内部实现。
持久化
持久会话数据的持久化机制、语义检查点策略以及随产品交付的存储后端。
| 包 | 职责 | ctx 键 |
|---|---|---|
session-persistence/ |
定义持久化服务和共享写入协调机制 | ctx.sessionPersistence |
session-checkpoint-policy/ |
应用语义持久性检查点 | 包装 ctx.llm 和 ctx.tools |
session-persistence-jsonl/ |
将会话持久化到 JSONL 文件 | 注册到 ctx.sessionPersistence |
session-persistence-sqlite/ |
将会话持久化到 SQLite | 注册到 ctx.sessionPersistence |
会话持久化决策记录了持久化设计。
投影
向客户端载体提供从日志派生的当前逐会话状态。
| 包 | 职责 | ctx 键 |
|---|---|---|
session-projection/ |
定义并驱动会话投影单元 | ctx.sessionProjections |
session-projection-cache/ |
持久化并恢复投影检查点 | ctx.sessionProjectionCache |
标题
从会话日志派生持久会话标题，并支持可选的模型后端 provider。
| 包 | 职责 | ctx 键 |
|---|---|---|
session-title/ |
负责标题状态、回退行为、provider 注册与刷新 | ctx.sessionTitle |
session-title-llm/ |
提供共享的模型标题生成能力 | — |
session-title-first-message-llm/ |
根据第一条合格的人类消息生成会话标题 | 注册到 ctx.sessionTitle |
session-title-all-messages-llm/ |
根据所有合格的人类消息生成会话标题 | 注册到 ctx.sessionTitle |
部署可注册一个模型后端 provider；未注册时，服务仍提供确定性回退。
遥测
将会话活动投影为外发遥测，并将投递委派给配置的上报后端。遥测决策记录上报边界；模式决策记录即时、反馈门控与禁用投递。
| 包 | 职责 |
|---|---|
session-telemetry/ |
定义捕获、脱敏、投影，以及实时或按需后端投递。 |
session-telemetry-otel/ |
通过 OpenTelemetry 日志以 FULL、FEEDBACK_ONLY 或 DISABLED 模式投递遥测。 |
子系统参考：persistence.md、session-projection.md、session-title.md 与 telemetry.md。同一时间只允许一个标题提供方注册；demo 主干挂载回退服务，两个模型提供方都留在默认组合之外。