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refactor(agent-loop): project runtime context before steps

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_Kerman
2026-08-01 20:39:10 +08:00
parent 1a09174987
commit d38c8bfaf3
11 changed files with 255 additions and 384 deletions
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packages/core/agent-loop/tests/contract-regressions.spec.ts
+14 -23
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@@ -1122,7 +1122,7 @@ describe('tool result call identity', () => {
})
describe('disposal and cancellation during pre-step assembly', () => {
it('disposal during system-prompt assembly closes the started step as disposed', { timeout: 30000 }, async () => {
it('disposal during system-prompt assembly prevents the turn from opening', { timeout: 30000 }, async () => {
// Start disposal, then release assembly. Do not await disposal first: it
// waits for the blocked driver to exit.
const adapter = new MockAdapter(['hang'])
@@ -1154,7 +1154,7 @@ describe('disposal and cancellation during pre-step assembly', () => {
ctx.on('session/event', (_s, event) => { if (event.type === 'turn/end') reasons.push(event.data.reason) })
send(agent, 'go')
// Give the loop time to enter the step and reach assemble().
// Give the loop time to reach pre-step assembly.
await new Promise(r => setTimeout(r, 50))
// Release assembly before awaiting disposal because disposal joins the blocked driver.
@@ -1165,18 +1165,15 @@ describe('disposal and cancellation during pre-step assembly', () => {
await driverDone(agent)
unlisten()
// Turn boundaries are durable rows; there is no `agent/*` mirror to assert.
const e = [...agent.session.events]
expect(e.filter(x => x.type === 'turn/start')).toHaveLength(1)
expect(e.filter(x => x.type === 'turn/end')).toHaveLength(1)
const turnEnd = e.findLast(x => x.type === 'turn/end')
expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason).toEqual({ kind: 'aborted', reason: { kind: 'disposed' } })
expect(e.filter(x => x.type === 'step/start')).toHaveLength(1)
expect(e.filter(x => x.type === 'step/end')).toHaveLength(1)
expect(e.some(x => x.type === 'turn/start')).toBe(false)
expect(e.some(x => x.type === 'turn/end')).toBe(false)
expect(e.some(x => x.type === 'step/start')).toBe(false)
expect(e.some(x => x.type === 'step/end')).toBe(false)
expect(e.some(x => x.type === 'assistant/chunk')).toBe(false)
})
it('cancel during system-prompt assembly closes the started step as aborted', { timeout: 30000 }, async () => {
it('cancel during system-prompt assembly prevents the turn from opening', { timeout: 30000 }, async () => {
const adapter = new MockAdapter([textResponse('should not appear')])
let releaseAssemble!: () => void
const blocker = new Promise<void>(r => void (releaseAssemble = r))
@@ -1215,16 +1212,14 @@ describe('disposal and cancellation during pre-step assembly', () => {
unlisten()
const e = [...agent.session.events]
expect(e.filter(x => x.type === 'turn/start')).toHaveLength(1)
expect(e.filter(x => x.type === 'turn/end')).toHaveLength(1)
const turnEnd = e.findLast(x => x.type === 'turn/end')
expect(turnEnd?.type === 'turn/end' && turnEnd.data.reason).toEqual({ kind: 'aborted', reason: { kind: 'user' } })
expect(e.filter(x => x.type === 'step/start')).toHaveLength(1)
expect(e.filter(x => x.type === 'step/end')).toHaveLength(1)
expect(e.some(x => x.type === 'turn/start')).toBe(false)
expect(e.some(x => x.type === 'turn/end')).toBe(false)
expect(e.some(x => x.type === 'step/start')).toBe(false)
expect(e.some(x => x.type === 'step/end')).toBe(false)
expect(e.some(x => x.type === 'assistant/chunk')).toBe(false)
expect(e.some(x => x.type === 'assistant/message')).toBe(false)
expect(adapter.requests).toHaveLength(0)
expect(reasons).toEqual([{ kind: 'aborted', reason: { kind: 'user' } }])
expect(reasons).toEqual([])
})
it('disposal during pre-step prevents the turn from opening', { timeout: 15000 }, async () => {
@@ -1356,14 +1351,10 @@ describe('disposal and cancellation during pre-step assembly', () => {
await driverDone(agent)
const e = [...agent.session.events]
expect(e.filter(x => x.type === 'turn/start')).toHaveLength(1)
expect(e.filter(x => x.type === 'turn/end')).toHaveLength(1)
// The critical assertions: after disposal, the turn has no assistant
// artifacts — the turn ended disposed before the model was invoked.
expect(e.some(x => x.type === 'turn/start')).toBe(false)
expect(e.some(x => x.type === 'turn/end')).toBe(false)
expect(e.some(x => x.type === 'assistant/chunk')).toBe(false)
expect(e.some(x => x.type === 'assistant/message')).toBe(false)
expect(adapter.requests).toHaveLength(0)
// The durable turn/end reason is the authoritative turn-boundary record
// (turn boundaries have no agent/* mirror).
})
})