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docs: rebalance prose cleanup and add trimming skill

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This commit is contained in:
Tianyi Cui
2026-07-13 23:27:00 +08:00
parent fcdc318dda
commit 148046b9c8
392 changed files with 2801 additions and 1754 deletions
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32
packages/core/agent-loop/src/loop.ts
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@@ -1,4 +1,9 @@
/** Agent loop driver with turn-level error containment. @module dsh-agent-loop/loop */
/**
* Drives one agent across queued durable turns. Turn failures are contained so
* later work can run; the session log, not this driver, owns conversation state.
* See docs/rfc/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.md.
* @module dsh-agent-loop/loop
*/
import type { Context } from 'cordis'
import type { FinishReason, GenerateOptions, LlmCallConfig, Message } from '@deepseek-ai/dsh-llm'
@@ -78,7 +83,7 @@ export interface LoopHandle {
cancelReason(): string
/** Clear the cancel marker (called once per iteration after the turn returns). */
clearCancel(): void
/** Settle idle waiters when a cancelled turn is skipped without a status transition. */
/** Settle idle waiters when pre-running cancellation skips a turn, without emitting `agent/status`. */
settleIdle(): void
}
@@ -267,7 +272,9 @@ async function runTurn(
break
}
// Compose, detach, and freeze the per-instance prefix before pressure checks.
// Compose the request-only prefix once per loop instance before pressure
// checks. It precedes all derived history and is recorded only in the
// request header, not as session history.
if (transmission.sessionPrefix === undefined) {
const emptyPrefix: Message[] = deepFreeze([])
const composed = await events.waterfall(
@@ -294,7 +301,8 @@ async function runTurn(
break
}
// Snapshot the exact log prefix before step/start: the reconstruction boundary.
// Snapshot the exact log prefix before step/start: the reconstruction
// boundary. Appends after this synchronous snapshot join the next request.
const boundaryMessages = session.deriveMessages()
session.append('step/start', { turn, step })
@@ -444,13 +452,12 @@ function drainSteering(agent: ReactLoopAgent, inbox: Inbox, turn: number): boole
return messages.length > 0
}
/** One step: build the request from the boundary snapshot + the step's
* header → compose the session prefix if this instance has none yet → log
* the header event the request owes → stream model → record → execute
* tools. The caller assembles the
* system prompt, fires the `agent/pre-step` seam, snapshots the derivation,
* and opens the step BEFORE calling this, so `boundaryMessages` is exactly
* the surface prefix at step/start and already reflects any compaction. */
/**
* Run one committed step: transform call config, log the request header, build
* the request from the cached prefix plus the step-boundary snapshot, stream and
* record the response, then execute tools. The caller has already assembled the
* prompt, run `agent/pre-step`, snapshotted history, and opened the step.
*/
async function runStep(
ctx: Context,
events: AgentEventDispatch,
@@ -560,7 +567,8 @@ async function runStep(
} catch {
parsedArguments = call.arguments
}
// TODO(pre-tool-input-rewrite): A rewrite must keep logged history and live presentation aligned.
// TODO(pre-tool-input-rewrite): Keep logged history and live presentation aligned;
// see docs/rfc/proposed/feature/2026-06-30-pre-tool-input-rewrite.md.
const result = await ctx.tools.execute({
callId: call.id,
name: call.name,