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creatixchu
42164508c8
Closes #2848. - dsh-llm 新增 LlmAdapter.imageRequestPricing 同步钩子与 LlmImageRequestPricing/LlmImageRequestPrice 词汇，ctx.llm 按路由解析 - llm-deepseek 用官方公布的 v4 视觉计算器逐句移植（14px patch、3:1 降采样、384 上限、最坏对齐 pad）实现该钩子，复现请求投影的最旧优先 offload 与像素预算缩放；纯几何 requestImageDimensions 上移到 dsh-attachment - token-meter 表层 fold 存储与路由无关的节点事实，measure() 按生效 envelope 的路由为图片出现处定价；锚点存快照并按同一路由重定价；TokenSurfaceNode 同时携带路由价 tokens 与固定启发式 heuristicTokens - compaction 触发、保留与选段读取同一套路由价，记录的 shadowedTokenCount 保持启发式以维持 O(1) 投影 fold 一致 - llm-replay 支持按模型的 imageRequestTokens 声明；新增 keyless 的 image-compaction ACP 快照场景端到端验证装配应用
106 lines
5.5 KiB
Markdown
106 lines
5.5 KiB
Markdown
# Token 计量
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[English](token-meter.md) | 中文
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`@deepseek-ai/dsh-token-meter` 公开一个独立的回放快照，用于表示请求压力与按位置计算的表层定价。`logRevision` 表示生成该计量中每个字段时所消费的持久事件数量。
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来源：[`packages/llm/token-meter/src/types.ts`](../../packages/llm/token-meter/src/types.ts)
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## `TokenMeasurement`
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```ts type-equiv
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/** Detached immutable request-pressure and surface snapshot at one consumed log revision. */
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interface TokenMeasurement {
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/** Number of durable events consumed; equal to the next unread event seq. */
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readonly logRevision: number
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/** Provider or heuristic anchor used for this measurement. */
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readonly baseline: TokenMeasurementBaseline
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/** Signed repricing of current surface content relative to the baseline anchor. */
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readonly surfaceDeltaTokens: number
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/** Non-negative current request-and-response pressure. */
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readonly totalTokens: number
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/** Total route-priced request tokens across the current surface; equals the sum of the node prices. */
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readonly surfaceTokens: number
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/** Current surface nodes in positional head-to-tail order. */
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readonly nodes: readonly TokenSurfaceNode[]
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}
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```
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每次计量都会通过 `ctx.llm` 把生效信封的路由 provider/model 解析为该路由声明的请求图片定价，因此图片出现处按请求实际发送的视觉 token 加模型可见文本计价；未声明定价的路由与组合保持固定启发式规则。`baseline.kind === 'usage'` 表示最近一次成功的提供方调用具有相同的规范请求 envelope，且该调用的总量不低于其完整路由定价锚点。`estimated` 表示不存在可复用的保守 usage 锚点，因此服务自行对完整信封和表层定价。后续成功请求会替换早先的锚点；有符号的 `surfaceDeltaTokens` 会保留相对于匹配锚点的增长与缩减，且两侧按同一路由重新定价。`totalTokens` 仍表示请求与响应压力，`surfaceTokens` 则是表层的路由定价总量，等于所有节点价格之和。
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## `TokenSurfaceNode`
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```ts type-equiv
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/** One token-priced node in the current ordered session surface. */
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interface TokenSurfaceNode {
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/** Durable sequence number of the surface event. */
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readonly seq: number
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/**
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* Request-pressure tokens for the exact message projected by this node under
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* the measured route: image occurrences carry the route's declared visual
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* price when the routed adapter declares one, and the fixed heuristic
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* otherwise. Trigger, retention, and range selection all read this price.
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*/
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readonly tokens: number
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/**
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* Fixed-heuristic tokens for the same message, independent of any route.
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* The shadow-price protocol prices replacements with this value so the O(1)
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* projection fold stays in agreement with its own appends.
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*/
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readonly heuristicTokens: number
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}
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```
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表层顺序具有权威性；替换节点的持久 seq 可能高于位置排在其后的节点。该快照不可变，不会随底层回放折叠推进而增长。
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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`) — the language sides differ only in locale-specific paired document paths. Signature blocks use a `ts cordis-catalog` fence and keep the original source JSDoc; dispatch modes are defined in the [primer](../cordis-primer.zh.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="ctxtokenmeter--tokenmeter"></a>
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### `ctx.tokenMeter` — `TokenMeter`
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Replay owner for one service-wide estimator and isolated per-session folds.
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```ts cordis-catalog
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/**
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* Measure current request pressure and surface through the durable tail.
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*
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* The effective envelope's routed provider/model selects the request-image
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* pricing every node is priced under: a route whose adapter declares image
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* pricing charges each retained image its visual tokens plus its
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* model-visible text, while other routes keep the fixed heuristic. Provider
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* usage is reused only when the latest successful call's canonical request
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* envelope matches `requestHeader` and its total is no lower than that
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* call's full route-priced anchor; otherwise the complete envelope and
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* surface are repriced.
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*
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* `requestHeader` replaces the latest logged envelope for pressure and node
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* pricing; the node set always describes the current session surface. Every
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* call clones those positional nodes, so measurement is O(surface).
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*
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* @param session - session to replay through its current durable tail.
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* @param requestHeader - optional effective request envelope replacing the latest logged header.
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* @returns a detached deeply immutable pressure and surface measurement.
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*/
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measure(session: Session, requestHeader?: EpochHeader): TokenMeasurement
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/**
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* Heuristically price one model-visible message (instance face of the pure
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* `estimateMessage` export from `estimate.ts`).
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* @param message - message to price without mutation.
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* @returns content and role-framing tokens under the fixed service heuristic.
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*/
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estimateMessage(message: Message): number
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```
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Types: [EpochHeader](session.zh.md) · [Message](llm-streaming.zh.md) · [Session](session.zh.md)
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Source: [`packages/llm/token-meter/src/index.ts`](../../packages/llm/token-meter/src/index.ts)
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<!-- END GENERATED cordis-surface -->
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