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feat(core): make turn cancellation explicit

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This commit is contained in:
Yichen Jiang
2026-07-16 18:12:34 +08:00
parent b1e19d8b69
commit c238992fbb
55 changed files with 884 additions and 383 deletions
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14
packages/core/agent-loop/tests/loop.spec.ts
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@@ -228,7 +228,7 @@ describe('agent loop', () => {
assembly.variables['model'] = 'mock'
return next()
})
ctx.on('agent/request', async (_agent, _turn, _step, config, _next) => {
ctx.on('agent/request', async (_agent, _turn, _step, config, _signal, _next) => {
return { ...config, model: 'mock' }
})
const agent = ctx.agentLoop.create(AgentId('a-late-model'), {})
@@ -429,7 +429,7 @@ describe('agent loop', () => {
let steps = 0
ctx.on('session/event', (_session, event) => { if (event.type === 'step/end') steps++ })
ctx.on('agent/turn-continuation', async (_agent, _turn, _defaultDecision, next) => {
ctx.on('agent/turn-continuation', async (_agent, _turn, _defaultDecision, _signal, next) => {
if (steps < 3) return { action: 'continue' as const }
return next()
})
@@ -469,7 +469,7 @@ describe('agent loop', () => {
ctx.llm.registerAdapter(['other-model'], adapter)
const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' })
ctx.on('agent/request', async (_agent, _turn, _step, config, _next) => {
ctx.on('agent/request', async (_agent, _turn, _step, config, _signal, _next) => {
// The seed is frozen — config is not a mutable per-call knob; a switch
// is proposed by returning a replacement, and the loop logs it.
expect(Object.isFrozen(config)).toBe(true)
@@ -601,10 +601,10 @@ describe('agent loop', () => {
// wait until the stream is hanging, then cancel
await new Promise(r => setTimeout(r, 30))
expect(agent.status).toBe('running')
agent.cancel('user interrupt')
agent.cancel({ kind: 'user' })
await waitForIdle(ctx, agent)
expect(reasons).toEqual([{ kind: 'aborted', reason: 'user interrupt' }])
expect(reasons).toEqual([{ kind: 'aborted' }])
})
it('surfaces max-tokens as the turn-end reason when the last step is cut off', async () => {
@@ -641,7 +641,7 @@ describe('agent loop', () => {
ctx.on('session/event', (_session, event) => { if (event.type === 'step/end') steps++ })
// Force exactly one continuation (step 1 → step 2), then defer to default
// (step 2 is a plain stop with no tool calls → stops).
ctx.on('agent/turn-continuation', async (_agent, _turn, _defaultDecision, next) => {
ctx.on('agent/turn-continuation', async (_agent, _turn, _defaultDecision, _signal, next) => {
if (steps < 2) return { action: 'continue' as const }
return next()
})
@@ -781,7 +781,7 @@ describe('agent loop', () => {
]])
const ctx = await harness(adapter)
let stepResults = 0
ctx.on('agent/step-result', async (_agent, _turn, _step, message, next) => {
ctx.on('agent/step-result', async (_agent, _turn, _step, message, _signal, next) => {
stepResults += 1
expect(message.content).toEqual([{ type: 'text', text: 'partial text' }])
return next()