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109 lines
4.8 KiB
Markdown
109 lines
4.8 KiB
Markdown
# 会话引用
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[English](session-reference.md) | 中文
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结构化的跨会话引用请求与准备后的消息上下文。[包约定](../../packages/context/session-reference) 定义规范 URI、当前表层投影、标签安全的 JSON 与字节保留、稳定错误和不可信的模型提示词。宿主适配器使用这些类型，而不会把各自 UI 的提及语法传入 agent（智能体）核心。
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来源：[`packages/context/session-reference/src/types.ts`](../../packages/context/session-reference/src/types.ts)
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## 输入与候选项
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`SessionReferenceInput` 是与宿主无关的选择。id 具有权威性；label 是随快照携带的显示元数据。
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```ts type-equiv
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/** One source session selected by a host. */
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interface SessionReferenceInput {
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/** Opaque source session identity. */
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sessionId: SessionId
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/** Optional user-facing mention label. */
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label?: string
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}
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```
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`SessionReferenceCandidate` 是面向宿主的发现输出。存在最新会话标题时，它的 label 使用该标题；筛选仍只搜索 session id 和 cwd，绝不搜索 transcript（文本记录）。
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```ts type-equiv
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/** One host-facing candidate from exact session metadata. */
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interface SessionReferenceCandidate {
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/** Opaque source session identity. */
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sessionId: SessionId
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/** Latest log-backed title, falling back to the opaque session id. */
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label: string
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/** Source session working directory, when recorded. */
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cwd?: string
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/** Source session creation time in Unix epoch milliseconds. */
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createdAt: number
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}
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```
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## 准备后的消息
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准备过程保留可读的当前消息内容，并最多返回一个聚合上下文。
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```ts type-equiv
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/** Direct message content and optional referenced-session context. */
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interface PreparedReferencedMessage {
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/** Readable message content after host mention tokens are removed. */
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content: ContentBlock[]
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/** Aggregated untrusted snapshot, absent when the message has no references. */
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additionalContext?: UserMessage
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}
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```
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## 错误
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`SessionReferenceError.code` 区分无效配置或输入、自引用、数量限制、源读取失败、预算失败和取消。宿主协议会把这些 code 映射到各自的错误封装，无需检查提示词字节。
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```ts type-equiv
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/** Stable failure codes exposed to host adapters. */
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type SessionReferenceErrorCode =
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| 'SESSION_REFERENCE_INVALID_CONFIG'
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| 'SESSION_REFERENCE_INVALID_REFERENCE'
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| 'SESSION_REFERENCE_SELF_REFERENCE'
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| 'SESSION_REFERENCE_TOO_MANY'
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| 'SESSION_REFERENCE_READ_FAILED'
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| 'SESSION_REFERENCE_BUDGET_EXCEEDED'
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| 'SESSION_REFERENCE_CANCELLED'
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```
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<!-- BEGIN GENERATED cordis-surface (gen-cordis-catalog.ts) — do not edit between markers -->
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<a id="cordis-surface"></a>
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## Cordis API
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Generated from source by `scripts/gen-cordis-catalog.ts` (verified fresh by `pnpm run verify-cordis-catalog` in doc-sync; regenerate with `pnpm run gen-cordis-catalog`) — this section is byte-identical in both language sides of the page. Signature blocks use a `ts cordis-catalog` fence and keep the original source JSDoc; dispatch modes are defined in the [primer](../cordis-primer.md#dispatch-modes), and the framework-inherited `ctx` API lives in [cordis-api/inherited.md](../cordis-api/inherited.md).
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<a id="ctxsessionreferences--sessionreferenceservice"></a>
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### `ctx.sessionReferences` — `SessionReferenceService`
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Exact-read consumer that prepares immutable cross-session message context.
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```ts cordis-catalog
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/**
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* List reference candidates, ranked by working-directory affinity.
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* @param agent - target agent; self is excluded and its cwd drives ranking.
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* @param query - optional case-insensitive session-id/cwd/title substring.
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* @param limit - optional positive result cap.
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* @param signal - optional cancellation boundary for host autocomplete teardown.
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* @returns candidates labeled by latest title or, when absent, session id.
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*/
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async listCandidates( agent: Agent, query: string = '', limit: number = this.config.candidateLimit, signal?: AbortSignal, ): Promise<SessionReferenceCandidate[]>
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/**
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* Snapshot all references before enqueue and return one aggregated durable context.
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* @param agent - target agent; references to it are rejected.
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* @param content - already host-normalized readable message content.
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* @param references - structured source sessions in mention order.
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* @param signal - optional cancellation boundary for host request teardown.
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* @returns detached content and optional referenced-session context.
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*/
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async prepare( agent: Agent, content: ContentBlock[], references: SessionReferenceInput[], signal?: AbortSignal, ): Promise<PreparedReferencedMessage>
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```
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Types: [Agent](core.md) · [ContentBlock](llm-streaming.md)
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Source: [`packages/context/session-reference/src/index.ts:70`](../../packages/context/session-reference/src/index.ts)
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<!-- END GENERATED cordis-surface -->
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