550 lines
23 KiB
TypeScript
550 lines
23 KiB
TypeScript
import { createUserMessage } from '@deepseek-ai/dsh-llm'
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import { describe, expect, it } from 'vitest'
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import { Context } from 'cordis'
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import { type Agent, type AgentOptions } from '@deepseek-ai/dsh-agent'
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import { Session, SessionId } from '@deepseek-ai/dsh-session'
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import AgentLoop from '@deepseek-ai/dsh-agent-loop'
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import { mountAgentLoopTestDependencies } from '@deepseek-ai/dsh-agent-loop-testkit'
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import InvariantService from '@deepseek-ai/dsh-invariants'
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import * as SessionInvariant from '@deepseek-ai/dsh-session/invariant'
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import * as AgentInvariant from '@deepseek-ai/dsh-agent/invariant'
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import * as AgentLoopInvariant from '@deepseek-ai/dsh-agent-loop/invariant'
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import SubagentService, { SUBAGENT_DESCRIPTOR_VERSION, SubagentError } from '@deepseek-ai/dsh-subagent'
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import { defineContentToolFixture } from '@deepseek-ai/dsh-tools'
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import { maxTokensResponse, MockAdapter, textResponse, toolCallResponse } from '../../../core/agent-loop/tests/mock-adapter.ts'
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import { resumeInProcessRun, startInProcessRun } from '../src/index.ts'
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type Script = ConstructorParameters<typeof MockAdapter>[0]
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async function mountInvariants(ctx: Context): Promise<void> {
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await ctx.plugin(InvariantService)
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await ctx.plugin(SessionInvariant)
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await ctx.plugin(AgentInvariant)
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await ctx.plugin(AgentLoopInvariant)
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}
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async function setup(script: Script, parentOptions: Partial<AgentOptions> = {}) {
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const ctx = new Context()
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await mountAgentLoopTestDependencies(ctx)
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await mountInvariants(ctx)
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await ctx.plugin(AgentLoop, { agents: [] })
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await ctx.plugin(SubagentService)
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const adapter = new MockAdapter(script)
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ctx.llm.registerAdapter(['mock'], adapter)
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const parent = ctx.agentLoop.create(SessionId('parent'), { provider: 'mock', model: 'mock', ...parentOptions })
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return { ctx, parent, adapter }
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}
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function request(parent: Agent, signal = new AbortController().signal) {
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return { prompt: [{ type: 'text' as const, text: 'child task' }], parent, signal }
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}
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function continuableRequest(parent: Agent) {
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const sessionId = SessionId('continuable-child')
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return {
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...request(parent),
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continuation: {
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sessionId,
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descriptor: {
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version: SUBAGENT_DESCRIPTOR_VERSION,
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provider: 'spawn',
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agentProvider: 'mock',
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agentModel: 'mock',
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},
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},
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}
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}
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function text(blocks: readonly { type: string; text?: string }[]): string {
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return blocks.filter(block => block.type === 'text').map(block => block.text).join('')
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}
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describe('startInProcessRun', () => {
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it('returns only after publication, drives a fresh child, and disposes it', async () => {
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const { ctx, parent } = await setup([textResponse('driver answer')])
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const run = await startInProcessRun(request(parent), {})
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expect(ctx.agents.get(run.id)).toBeDefined()
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const result = await run.result
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expect(result.stopReason).toBe('completed')
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expect(text(result.output)).toBe('driver answer')
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expect(ctx.agents.get(run.id)!.options.subagentDepth).toBe(1)
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await run.dispose()
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await run.dispose()
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expect(ctx.agents.get(run.id)).toBeUndefined()
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})
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it('rejects a continuable child when no durability listener is registered', async () => {
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const { parent } = await setup([textResponse('driver answer')])
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const run = await startInProcessRun(continuableRequest(parent), {})
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const caught: unknown = await run.result.catch((error: unknown) => error)
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expect(caught).toBeInstanceOf(SubagentError)
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const durabilityError = caught as SubagentError
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expect(durabilityError.code).toBe('DURABILITY_FAILED')
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expect(durabilityError.message).toContain('required durability checkpoint has no registered listener')
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await run.dispose()
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})
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it('rejects when the durability listener disappears before final confirmation', async () => {
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const { ctx, parent } = await setup([textResponse('driver answer')])
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let flushes = 0
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let detach = (): void => {}
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detach = ctx.on('session/flush', (session) => {
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if (session.header.parentSession === undefined) return
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flushes++
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if (flushes === 1) detach()
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})
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const run = await startInProcessRun(continuableRequest(parent), {})
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const caught: unknown = await run.result.catch((error: unknown) => error)
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expect(caught).toBeInstanceOf(SubagentError)
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const durabilityError = caught as SubagentError
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expect(durabilityError.code).toBe('DURABILITY_FAILED')
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expect(durabilityError.message).toContain('required durability checkpoint has no registered listener')
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expect(flushes).toBe(1)
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await run.dispose()
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})
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it('requires a final durability checkpoint for a continuable child', async () => {
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const { ctx, parent } = await setup([textResponse('driver answer')])
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const failure = new Error('disk full')
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let flushes = 0
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ctx.on('session/flush', (session) => {
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if (session.header.parentSession === undefined) return
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flushes++
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throw failure
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})
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const run = await startInProcessRun(continuableRequest(parent), {})
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const caught: unknown = await run.result.catch((error: unknown) => error)
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expect(caught).toBeInstanceOf(SubagentError)
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const durabilityError = caught as SubagentError
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expect(durabilityError.code).toBe('DURABILITY_FAILED')
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expect(durabilityError.cause).toBe(failure)
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expect(durabilityError.message).toContain(
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'the latest child state was not confirmed persisted and may be unavailable or stale on resume: disk full',
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)
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expect(flushes).toBe(2)
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await run.dispose()
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})
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it('completes a continuable child when the final checkpoint retries a transient flush failure', async () => {
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const { ctx, parent } = await setup([textResponse('driver answer')])
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let flushes = 0
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ctx.on('session/flush', (session) => {
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if (session.header.parentSession === undefined) return
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flushes++
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if (flushes === 1) throw new Error('temporary append failure')
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})
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const run = await startInProcessRun(continuableRequest(parent), {})
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await expect(run.result).resolves.toMatchObject({ stopReason: 'completed' })
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expect(flushes).toBe(2)
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await run.dispose()
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})
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it.each([
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{ checkpoint: 'succeeds', failure: undefined },
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{ checkpoint: 'fails', failure: new Error('disk full') },
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])('lets cancellation own the result when the final durability checkpoint $checkpoint', async ({ failure }) => {
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const { ctx, parent } = await setup([textResponse('driver answer')])
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const checkpointStarted = Promise.withResolvers<undefined>()
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const releaseCheckpoint = Promise.withResolvers<undefined>()
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let flushes = 0
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ctx.on('session/flush', async (session) => {
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if (session.header.parentSession === undefined) return
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flushes++
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if (flushes !== 2) return
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checkpointStarted.resolve(undefined)
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await releaseCheckpoint.promise
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if (failure !== undefined) throw failure
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})
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const controller = new AbortController()
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const run = await startInProcessRun({
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...continuableRequest(parent),
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signal: controller.signal,
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}, {})
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await checkpointStarted.promise
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controller.abort()
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releaseCheckpoint.resolve(undefined)
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await expect(run.result).resolves.toMatchObject({ stopReason: 'aborted' })
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expect(flushes).toBe(2)
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await run.dispose()
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})
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it('keeps foreground runs best-effort when their turn checkpoint fails', async () => {
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const { ctx, parent } = await setup([textResponse('driver answer')])
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let flushes = 0
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ctx.on('session/flush', (session) => {
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if (session.header.parentSession === undefined) return
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flushes++
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throw new Error('disk full')
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})
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const run = await startInProcessRun(request(parent), {})
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await expect(run.result).resolves.toMatchObject({ stopReason: 'completed' })
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expect(flushes).toBe(1)
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await run.dispose()
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})
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it('reports the message-turn outcome when a later non-message turn completes during flush', async () => {
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const { ctx, parent } = await setup([maxTokensResponse('partial answer')])
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let injected = false
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ctx.on('session/flush', (session) => {
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if (injected || session.header.parentSession === undefined) return
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const lastEnd = session.events.findLast(event => event.type === 'turn/end')
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if (lastEnd?.type !== 'turn/end' || lastEnd.data.reason.kind !== 'max-tokens') return
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injected = true
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const turn = lastEnd.data.turn + 1
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session.append('turn/start', {
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turn,
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trigger: { kind: 'injection', source: { kind: 'plugin', plugin: 'late-metadata' } },
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})
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session.append('user/message', createUserMessage({
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content: [{ type: 'text', text: 'late metadata' }],
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source: { kind: 'plugin', plugin: 'late-metadata' },
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}), { surfaceOp: 'append' })
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session.append('turn/end', { turn, reason: { kind: 'completed' } })
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})
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const run = await startInProcessRun(request(parent), {})
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const result = await run.result
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const child = ctx.agents.get(run.id)!
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expect(injected).toBe(true)
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expect(child.session.events.findLast(event => event.type === 'turn/end'))
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.toMatchObject({ data: { reason: { kind: 'completed' } } })
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expect(result.stopReason).toBe('max-tokens')
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await run.dispose()
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})
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it('seeds a forked child but reads only the child-owned output', async () => {
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const { ctx, parent } = await setup([textResponse('parent answer'), textResponse('child answer')])
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parent.followup(createUserMessage({ content: [{ type: 'text', text: 'parent question' }], source: { kind: 'user' } }))
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await parent.whenIdle()
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const seed = parent.session.events.slice()
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const run = await startInProcessRun(request(parent), { seed })
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const result = await run.result
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expect(text(result.output)).toBe('child answer')
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const child = ctx.agents.get(run.id)!
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expect(child.session.header.seedLength).toBe(seed.length)
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expect(child.session.events.slice(0, seed.length)).toEqual(seed)
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await run.dispose()
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})
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it('persists the child depth in its session header', async () => {
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const { ctx, parent } = await setup([textResponse('child answer')])
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const run = await startInProcessRun(request(parent), {})
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await run.result
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// The recursion budget is durable session data, not only runtime options —
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// a depth that lived only in AgentOptions would reset to 0 on resume.
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expect(ctx.agents.get(run.id)!.session.header.delegationDepth).toBe(1)
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await run.dispose()
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})
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it('inherits the parent output-token cap and accepts an explicit child override', async () => {
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const { ctx, parent, adapter } = await setup(
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[textResponse('inherited'), textResponse('overridden')],
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{ maxTokens: 111 },
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)
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const inherited = await startInProcessRun(request(parent), {})
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await inherited.result
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expect(adapter.requests[0]?.maxTokens).toBe(111)
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expect(ctx.agents.get(inherited.id)?.options.maxTokens).toBe(111)
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await inherited.dispose()
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const overridden = await startInProcessRun({
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...request(parent),
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agentOptions: { maxTokens: 222 },
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}, {})
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await overridden.result
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expect(adapter.requests[1]?.maxTokens).toBe(222)
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expect(ctx.agents.get(overridden.id)?.options.maxTokens).toBe(222)
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await overridden.dispose()
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})
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it('counts a RESUMED child by its persisted header depth, not the absent runtime depth', async () => {
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// Resume rebuilds runtime options, so the durable header must keep this
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// depth-1 child from delegating as though it were top-level.
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const { ctx } = await setup([textResponse('unused')])
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const resumed = (await ctx.agents.create({
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sessionId: SessionId('resumed-child'),
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meta: { parentSession: SessionId('root'), delegationDepth: 1 },
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agentOptions: { provider: 'mock', model: 'mock' },
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signal: new AbortController().signal,
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})).agent
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await expect(startInProcessRun({ ...request(resumed), maxDepth: 1 }, {}))
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.rejects.toMatchObject({ name: 'SubagentDepthError', attemptedDepth: 2, maxDepth: 1 })
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})
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it('lets runtime options deepen but never lower the persisted depth', async () => {
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const { ctx } = await setup([textResponse('unused')])
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const parent = (await ctx.agents.create({
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sessionId: SessionId('deep-parent'),
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meta: { delegationDepth: 2 },
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agentOptions: { provider: 'mock', model: 'mock', subagentDepth: 1 },
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signal: new AbortController().signal,
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})).agent
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// Persisted 2 vs runtime 1: the child is depth 3, so maxDepth 2 rejects.
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await expect(startInProcessRun({ ...request(parent), maxDepth: 2 }, {}))
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.rejects.toMatchObject({ name: 'SubagentDepthError', attemptedDepth: 3, maxDepth: 2 })
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})
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it('rejects invalid and exceeded depth before publication', async () => {
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const { parent } = await setup([])
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await expect(startInProcessRun({ ...request(parent), maxDepth: -1 }, {}))
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.rejects.toThrow('non-negative safe integer')
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await expect(startInProcessRun({ ...request(parent), maxDepth: 0 }, {}))
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.rejects.toMatchObject({ name: 'SubagentDepthError' })
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for (const value of [Number.NaN, 1.5, -1, -0, Number.MAX_SAFE_INTEGER + 1]) {
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const malformed = { options: { subagentDepth: value }, session: { header: {} } } as unknown as Agent
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await expect(startInProcessRun(request(malformed), {}))
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.rejects.toThrow('agent subagentDepth must be a non-negative safe integer')
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}
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const maxParent = { options: { subagentDepth: Number.MAX_SAFE_INTEGER }, session: { header: {} } } as unknown as Agent
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await expect(startInProcessRun(request(maxParent), {})).rejects.toBeInstanceOf(RangeError)
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})
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it('rejects an already-aborted request without publishing a child', async () => {
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const { ctx, parent } = await setup([])
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const beforeAgents = ctx.agents.list().length
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const beforeSessions = ctx.sessions.list().length
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const controller = new AbortController()
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controller.abort('too late')
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await expect(startInProcessRun(request(parent, controller.signal), {}))
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.rejects.toThrow('aborted before child publication')
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expect(ctx.agents.list()).toHaveLength(beforeAgents)
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expect(ctx.sessions.list()).toHaveLength(beforeSessions)
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})
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it('rejects an already-aborted resume before publication', async () => {
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const { parent } = await setup([])
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const controller = new AbortController()
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controller.abort('too late')
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await expect(resumeInProcessRun({
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sessionId: SessionId('resumed-child'),
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prompt: [{ type: 'text', text: 'continue' }],
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source: { kind: 'user' },
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parent,
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signal: controller.signal,
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descriptor: { version: SUBAGENT_DESCRIPTOR_VERSION, provider: 'spawn' },
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})).rejects.toThrow('aborted before child publication')
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})
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it('resumes without inventing undeclared agent model options', async () => {
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const childId = SessionId('resumed-child')
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let flushes = 0
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const child = {
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id: childId,
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options: {},
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session: new Session(childId),
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status: 'idle',
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acceptsNextStep: false,
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ctx: {
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sessions: {
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flushRequired: () => {
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flushes++
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return Promise.resolve()
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},
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},
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} as unknown as Context,
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send(): void {},
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reserveTurnAdmission: () => undefined,
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updateInbox: () => 'not-found',
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followup(): void {},
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steer() { return { outcome: Promise.resolve({ status: 'rejected' as const }) } },
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inject(): void {},
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cancel(): void {},
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whenIdle: () => Promise.resolve(),
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} as Agent
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let resumedOptions: unknown
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const parent = {
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ctx: {
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agents: {
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resume: (options: { agentOptions: unknown }) => {
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resumedOptions = options.agentOptions
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return Promise.resolve({ agent: child, dispose: () => Promise.resolve() })
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},
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},
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},
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} as unknown as Agent
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const run = await resumeInProcessRun({
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sessionId: childId,
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prompt: [{ type: 'text', text: 'continue' }],
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source: { kind: 'plugin', plugin: 'test-coordinator' },
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parent,
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signal: new AbortController().signal,
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descriptor: { version: SUBAGENT_DESCRIPTOR_VERSION, provider: 'spawn' },
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})
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expect(resumedOptions).toEqual({})
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await expect(run.result).resolves.toMatchObject({ stopReason: 'error' })
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expect(flushes).toBe(1)
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await run.dispose()
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})
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it('uses the request signal after publication and dispose as cancellation paths', async () => {
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const { parent, adapter } = await setup(['hang', 'hang'])
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const controller = new AbortController()
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const signalled = await startInProcessRun(request(parent, controller.signal), {})
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await new Promise(resolve => setTimeout(resolve, 30))
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controller.abort('stop child')
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await expect(signalled.result).resolves.toMatchObject({ stopReason: 'aborted' })
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expect(adapter.requests[0]?.signal?.reason).toEqual({ kind: 'parent' })
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const child = parent.ctx.agents.get(signalled.id)
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const turnEnd = child?.session.events.findLast(event => event.type === 'turn/end')
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expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason).toEqual({ kind: 'aborted' })
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await signalled.dispose()
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const disposed = await startInProcessRun(request(parent), {})
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await new Promise(resolve => setTimeout(resolve, 30))
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await disposed.dispose()
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await expect(disposed.result).resolves.toMatchObject({ stopReason: 'aborted' })
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})
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it('cleans a failed unpublished setup before rejecting', async () => {
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const { ctx, parent } = await setup([])
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const beforeAgents = ctx.agents.list().length
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const beforeSessions = ctx.sessions.list().length
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await expect(startInProcessRun({
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...request(parent),
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toolFilter: { deny: ['unknown-tool'] },
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}, {})).rejects.toThrow('unknown global tool')
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expect(ctx.agents.list()).toHaveLength(beforeAgents)
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expect(ctx.sessions.list()).toHaveLength(beforeSessions)
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})
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it('closes the abort handoff after the factory detaches its creation listener', async () => {
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const { ctx, parent } = await setup([])
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const controller = new AbortController()
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const beforeAgents = ctx.agents.list().length
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const beforeSessions = ctx.sessions.list().length
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const parentWithAbortAtHandoff = {
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options: parent.options,
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session: parent.session,
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ctx: {
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// The driver's synchronous inheritance capture probes both policy
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// services opportunistically; this stub composes neither.
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get: () => undefined,
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agents: {
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create: async (options: Parameters<typeof ctx.agents.create>[0]) => {
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const handle = await ctx.agents.create(options)
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// `create()` has detached its creation-only listener, but the
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// provider continuation has not installed its live-run listener.
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controller.abort('handoff race')
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return handle
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},
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},
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},
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} as unknown as Agent
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await expect(startInProcessRun(request(parentWithAbortAtHandoff, controller.signal), {}))
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.rejects.toThrow('aborted before child publication')
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expect(ctx.agents.list()).toHaveLength(beforeAgents)
|
|
expect(ctx.sessions.list()).toHaveLength(beforeSessions)
|
|
})
|
|
|
|
it('confirmed steering rejects a settled child instead of queueing an untracked turn', async () => {
|
|
const { ctx, parent } = await setup([textResponse('done')])
|
|
const run = await startInProcessRun(request(parent), {})
|
|
await run.result
|
|
await expect(run.steer!([{ type: 'text', text: 'late' }], { kind: 'user' }))
|
|
.rejects.toThrow(/not running; the message was not delivered/)
|
|
const child = ctx.agents.get(run.id)!
|
|
expect(child.session.events.some(event => event.type === 'steering/message')).toBe(false)
|
|
await run.dispose()
|
|
})
|
|
|
|
it('confirmed steering rejects when a concluding tool prevents request admission', async () => {
|
|
const { ctx, parent } = await setup([toolCallResponse('c1', 'finalize', {})])
|
|
const enteredTool = Promise.withResolvers<undefined>()
|
|
const releaseTool = Promise.withResolvers<undefined>()
|
|
ctx.tools.register(defineContentToolFixture({
|
|
name: 'finalize',
|
|
description: 'Finish the child run.',
|
|
parameters: {},
|
|
async execute(_args, exec) {
|
|
enteredTool.resolve(undefined)
|
|
await releaseTool.promise
|
|
exec.concludeTurn()
|
|
return [{ type: 'text', text: 'final' }]
|
|
},
|
|
}))
|
|
const run = await startInProcessRun(request(parent), {})
|
|
const child = ctx.agents.get(run.id)!
|
|
await enteredTool.promise
|
|
|
|
const delivery = run.steer!([{ type: 'text', text: 'terminal race' }], { kind: 'user' })
|
|
releaseTool.resolve(undefined)
|
|
await expect(delivery).rejects.toThrow(/stopped before steering admission; the message was not delivered/)
|
|
await run.result
|
|
expect(child.session.events.some(event => event.type === 'steering/message')).toBe(false)
|
|
await run.dispose()
|
|
})
|
|
|
|
it('confirmed steering fulfills only after the next request snapshot admits it', async () => {
|
|
const { ctx, parent, adapter } = await setup([textResponse('first'), textResponse('second')])
|
|
const enteredStopping = Promise.withResolvers<undefined>()
|
|
const releaseStopping = Promise.withResolvers<undefined>()
|
|
let held = false
|
|
ctx.on('agent/turn-stopping', (agent) => {
|
|
if (agent.session.header.parentSession === undefined || held) return
|
|
held = true
|
|
enteredStopping.resolve(undefined)
|
|
return releaseStopping.promise
|
|
})
|
|
|
|
const run = await startInProcessRun(request(parent), {})
|
|
const child = ctx.agents.get(run.id)!
|
|
await enteredStopping.promise
|
|
|
|
let settled = false
|
|
const delivery = run.steer!([{ type: 'text', text: 'after the first step' }], { kind: 'user' })
|
|
.then(() => { settled = true })
|
|
await Promise.resolve()
|
|
expect(settled).toBe(false)
|
|
releaseStopping.resolve(undefined)
|
|
await delivery
|
|
|
|
const result = await run.result
|
|
expect(adapter.requests).toHaveLength(2)
|
|
expect(JSON.stringify(adapter.requests[1]?.messages)).toContain('after the first step')
|
|
expect((result.output[0] as { text?: string }).text).toBe('second')
|
|
const steering = child.session.events.find(event => event.type === 'steering/message')
|
|
expect(steering?.type === 'steering/message' && steering.data.message.source).toEqual({ kind: 'user' })
|
|
await run.dispose()
|
|
})
|
|
|
|
it('carries steering from a non-terminal flush window into a tracked next turn', async () => {
|
|
const { ctx, parent, adapter } = await setup([textResponse('first'), textResponse('second')])
|
|
const enteredFlush = Promise.withResolvers<undefined>()
|
|
const releaseFlush = Promise.withResolvers<undefined>()
|
|
let held = false
|
|
ctx.on('session/flush', (session) => {
|
|
if (session.header.parentSession === undefined || held) return
|
|
if (!session.events.some(event => event.type === 'turn/end')) return
|
|
held = true
|
|
enteredFlush.resolve(undefined)
|
|
return releaseFlush.promise
|
|
})
|
|
|
|
const run = await startInProcessRun(request(parent), {})
|
|
const child = ctx.agents.get(run.id)!
|
|
await enteredFlush.promise
|
|
expect(child.status).toBe('running')
|
|
|
|
const delivery = run.steer!([{ type: 'text', text: 'next tracked turn' }], { kind: 'user' })
|
|
releaseFlush.resolve(undefined)
|
|
await delivery
|
|
const result = await run.result
|
|
expect(adapter.requests).toHaveLength(2)
|
|
expect(child.session.events.filter(event => event.type === 'turn/start')).toHaveLength(2)
|
|
expect(child.session.events.some(event => event.type === 'steering/message')).toBe(false)
|
|
expect((result.output[0] as { text?: string }).text).toBe('second')
|
|
await run.dispose()
|
|
})
|
|
})
|