Merge latest origin/master into compact-post-step-overflow-recovery
# Conflicts: # docs/agent-lifecycle.md # docs/architecture.md # docs/cookbook/extension-cookbook.i18n.yaml # docs/cordis-catalog/events.md # docs/cordis-catalog/services.md # docs/event-producer-consumer.md # docs/rfc/INDEX.md # docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md # docs/rfc/implemented/architecture/2026-07-15-replay-token-meter-service.i18n.yaml # docs/rfc/implemented/architecture/2026-07-15-replay-token-meter-service.md # docs/rfc/implemented/architecture/2026-07-15-replay-token-meter-service.zh.md # docs/rfc/implemented/feature/2026-06-18-compaction-capability-seam.md # docs/rfc/implemented/feature/2026-07-07-session-prefix.md # packages/compact/compact-basic/README.md # packages/compact/compact-basic/src/config.ts # packages/compact/compact-basic/src/index.ts # packages/compact/compact-basic/src/summarizer.ts # packages/compact/compact-basic/tests/compact-basic.spec.ts # packages/compact/compact-basic/tests/compact-loop-repro.spec.ts # packages/compact/compact/README.md # packages/cordis/tool-cordis/src/api-catalog.ts # packages/core/agent-loop/src/loop.ts # packages/core/agent-loop/tests/cancel.spec.ts # packages/llm/llm-deepseek/src/adapter.ts # packages/llm/llm-pi-ai/README.md # packages/llm/llm-pi-ai/src/stream.ts # packages/llm/llm-pi-ai/tests/convert.spec.ts # packages/llm/llm/README.md # packages/llm/llm/src/index.ts # packages/llm/llm/tests/service.spec.ts # scripts/gen-doc-graphs.ts
This commit is contained in:
Tianyi Cui
@@ -1,8 +1,6 @@
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/**
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* Opt-in request-time clock context. Active turns receive the current zoned
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* time and elapsed time since the preceding model-visible message. The loop
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* logs each rendered value as request-header state rather than conversation
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* history.
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* Opt-in request-preparation clock context. Eligible pre-step attempts append
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* durable, source-attributed time readings to conversation history.
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*
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* @module @deepseek-ai/dsh-time-context
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*/
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@@ -10,77 +8,29 @@
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import type { Context } from 'cordis'
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import z from 'schemastery'
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import type { Agent } from '@deepseek-ai/dsh-agent'
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import type { AssembleContext } from '@deepseek-ai/dsh-system-prompt'
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/** Cordis plugin name used by loader diagnostics. */
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export const name = 'time-context'
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/** The system-prompt registry that owns the dynamic request section. */
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export const inject = ['systemPrompt']
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/** The agent registry that owns the pre-step lifecycle seam. */
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export const inject = ['agents']
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/** Request-time clock formatting and refresh policy. Invalid values fail plugin load. */
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/** Request-preparation clock formatting and append scheduling. Invalid values fail plugin load. */
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export interface Config {
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/** IANA time zone used for the rendered timestamp. Omit to resolve the Node process's system zone at plugin load. */
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timeZone?: string
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/** Maximum age of a reading within one turn, in milliseconds (default 60,000; `0` refreshes every step). */
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/** Minimum milliseconds between durable injections in one session. Omit or set to 0 to inject on every eligible pre-step attempt. */
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refreshIntervalMs?: number
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}
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/** Schemastery validation and defaults for {@link Config}. */
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/** Schemastery validation for {@link Config}. */
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export const Config: z<Config> = z.object({
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timeZone: z.string(),
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refreshIntervalMs: z.number().default(60_000),
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refreshIntervalMs: z.number(),
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})
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interface OpenTurn {
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turn: number
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startSeq: number
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}
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/** Cached text and the fixed inter-turn baseline used by one agent's open turn. */
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interface RenderState {
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turn: number
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renderedAt: number
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previousMessageTime: number | undefined
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text: string
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}
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type TimestampPart = 'day' | 'hour' | 'minute' | 'month' | 'second' | 'timeZoneName' | 'year'
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function openTurn(agent: Agent): OpenTurn | undefined {
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for (const event of [...agent.session.events].reverse()) {
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switch (event.type) {
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case 'turn/end':
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return undefined
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case 'turn/start':
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return { turn: event.data.turn, startSeq: event.seq }
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default:
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// Merge-extensible session events: only turn boundaries matter here.
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break
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}
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}
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return undefined
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}
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/** Find the latest model-visible timestamp strictly before one turn boundary. */
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function previousMessageTime(agent: Agent, turnStartSeq: number): number | undefined {
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for (const event of [...agent.session.events].reverse()) {
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if (event.seq >= turnStartSeq) continue
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switch (event.type) {
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case 'user/message':
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case 'assistant/message':
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case 'tool/result':
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case 'context/message':
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case 'steering/message':
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return event.time
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default:
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// Merge-extensible session events: non-surface records are not messages.
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break
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}
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}
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return undefined
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}
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/** Format an epoch millisecond value as an ISO-shaped timestamp with offset and IANA zone. */
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function formatTimestamp(now: number, formatter: Intl.DateTimeFormat, timeZone: string): string {
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const parts = Object.fromEntries(
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@@ -107,31 +57,85 @@ function formatDuration(elapsedMs: number): string {
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return parts.join(' ')
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}
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/** Find the latest model-visible event, excluding this plugin's pending append. */
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function precedingMessageTime(agent: Agent): number | undefined {
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for (const event of [...agent.session.events].reverse()) {
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switch (event.type) {
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case 'user/message':
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case 'assistant/message':
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case 'tool/result':
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case 'context/message':
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case 'steering/message':
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return event.time
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default:
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// Merge-extensible session events: non-surface records are not messages.
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break
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}
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}
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return undefined
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}
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/** Find the preceding time-context event within the open turn. */
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function precedingStepContextTime(agent: Agent, turn: number): number | undefined {
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for (const event of [...agent.session.events].reverse()) {
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if (event.type === 'turn/start' && event.data.turn === turn) return undefined
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if (event.type === 'context/message'
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&& event.data.source.kind === 'plugin'
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&& event.data.source.plugin === name) {
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return event.time
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}
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}
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return undefined
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}
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/** Find this plugin's latest durable injection, including a shadowed surface event. */
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function latestInjectionTime(agent: Agent): number | undefined {
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for (const event of [...agent.session.events].reverse()) {
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if (event.type === 'context/message'
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&& event.data.source.kind === 'plugin'
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&& event.data.source.plugin === name) {
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return event.time
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}
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}
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return undefined
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}
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function renderText(
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now: number,
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turn: number,
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step: number,
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previous: number | undefined,
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formatter: Intl.DateTimeFormat,
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timeZone: string,
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): string {
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const elapsed = previous === undefined
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? 'unavailable (no earlier message in this session)'
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: formatDuration(now - previous)
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return `Current time: ${formatTimestamp(now, formatter, timeZone)}\nTime since previous message: ${elapsed}.`
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const elapsed = previous === undefined ? 'unavailable' : formatDuration(now - previous)
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const baseline = step === 1 ? 'model-visible message' : 'step context'
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return `Time sampled while preparing turn ${turn}, step ${step}: ${formatTimestamp(now, formatter, timeZone)}\n`
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+ `Elapsed since the preceding ${baseline}: ${elapsed}.`
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}
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/** Reject refresh intervals that cannot represent an exact elapsed-millisecond threshold. */
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function validateRefreshInterval(refreshIntervalMs: number | undefined): void {
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if (refreshIntervalMs !== undefined && (
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!Number.isSafeInteger(refreshIntervalMs)
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|| refreshIntervalMs < 0
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)) {
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throw new TypeError(
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`time-context: refreshIntervalMs must be a non-negative safe integer, got ${String(refreshIntervalMs)}`,
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)
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}
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}
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/**
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* Register the request-time clock section for the lifetime of `ctx`.
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* @param ctx - plugin context; the section registration is disposed with it.
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* @param config - validated time zone and intra-turn refresh interval.
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* @throws when the time zone or refresh interval is invalid.
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* Register a prepended pre-step listener for the lifetime of `ctx`.
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* @param ctx - plugin context; the listener is disposed with it.
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* @param config - time zone and durable refresh scheduling configuration.
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* @throws when the refresh interval is invalid or the configured or process time zone cannot be resolved.
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*/
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export function apply(ctx: Context, config: Config): void {
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const timeZone = config.timeZone
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const refreshIntervalMs = config.refreshIntervalMs as number
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if (!Number.isSafeInteger(refreshIntervalMs) || refreshIntervalMs < 0) {
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throw new Error(`time-context: refreshIntervalMs must be a non-negative safe integer, got ${refreshIntervalMs}`)
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}
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const refreshIntervalMs = config.refreshIntervalMs
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validateRefreshInterval(refreshIntervalMs)
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let formatter: Intl.DateTimeFormat
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try {
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formatter = new Intl.DateTimeFormat('en-US', {
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@@ -152,32 +156,27 @@ export function apply(ctx: Context, config: Config): void {
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throw new Error(message, { cause: error })
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}
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const resolvedTimeZone = formatter.resolvedOptions().timeZone
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const states = new WeakMap<Agent, RenderState>()
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ctx.systemPrompt.section({
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name: 'context:time',
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order: 10,
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text(context: AssembleContext): string {
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const agent = context.agent
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if (agent === undefined) return ''
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const currentTurn = openTurn(agent)
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if (currentTurn === undefined) return ''
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const now = Date.now()
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const prior = states.get(agent)
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if (prior !== undefined
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&& prior.turn === currentTurn.turn
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&& now >= prior.renderedAt
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&& now - prior.renderedAt < refreshIntervalMs) {
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return prior.text
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}
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const previous = prior?.turn === currentTurn.turn
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? prior.previousMessageTime
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: previousMessageTime(agent, currentTurn.startSeq)
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const text = renderText(now, previous, formatter, resolvedTimeZone)
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states.set(agent, { turn: currentTurn.turn, renderedAt: now, previousMessageTime: previous, text })
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return text
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},
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})
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ctx.on('agent/pre-step', (
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agent: Agent,
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turn: number,
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step: number,
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signal: AbortSignal,
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) => {
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if (signal.aborted) return
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const now = Date.now()
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if (refreshIntervalMs !== undefined && refreshIntervalMs > 0) {
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const lastInjection = latestInjectionTime(agent)
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if (lastInjection !== undefined
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&& now >= lastInjection
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&& now - lastInjection < refreshIntervalMs) return
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}
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const previous = step === 1
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? precedingMessageTime(agent)
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: precedingStepContextTime(agent, turn)
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agent.inject(
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[{ type: 'text', text: renderText(now, turn, step, previous, formatter, resolvedTimeZone) }],
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{ source: { kind: 'plugin', plugin: name } },
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)
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}, { prepend: true })
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}
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