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feat(compact): recover context overflow (PR3 phase 2)

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Hypatia May
2026-07-15 16:50:44 +08:00
parent e8d066f750
commit 12484104c8
46 changed files with 913 additions and 242 deletions
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21
packages/core/agent-loop/tests/loop.spec.ts
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@@ -486,9 +486,8 @@ describe('agent loop', () => {
it('agent/pre-step fires once per step before the step is opened', async () => {
// Two steps (a tool call, then a final text turn) → two model calls → two
// pre-step fires, each carrying the assembled full system prompt, BEFORE
// the step is opened and its request is derived (the request the adapter
// sees reflects any surface state at fire time).
// pre-step fires BEFORE the step is opened and its request is derived (the
// request the adapter sees reflects any surface state at fire time).
const adapter = new MockAdapter([
toolCallResponse('c1', 'echo', {}, 'calling echo'),
textResponse('done'),
@@ -500,21 +499,19 @@ describe('agent loop', () => {
}))
const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' })
const fires: { turn: number; step: number; fullSystemPrompt: string }[] = []
ctx.on('agent/pre-step', (subject, turn, step, fullSystemPrompt) => {
if (subject === agent) fires.push({ turn, step, fullSystemPrompt })
const fires: { turn: number; step: number; signal: AbortSignal }[] = []
ctx.on('agent/pre-step', (subject, turn, step, signal) => {
if (subject === agent) fires.push({ turn, step, signal })
})
send(agent, 'go')
await waitForIdle(ctx, agent)
// One fire per step, in order, each with the assembled system prompt
// (here just the loop's own harness-identity section — no persona set).
const HARNESS = 'You are an AI agent powered by the DeepSeek Harness SDK.'
expect(fires).toEqual([
{ turn: 1, step: 1, fullSystemPrompt: HARNESS },
{ turn: 1, step: 2, fullSystemPrompt: HARNESS },
expect(fires.map(({ turn, step }) => ({ turn, step }))).toEqual([
{ turn: 1, step: 1 },
{ turn: 1, step: 2 },
])
expect(fires.every(({ signal }) => signal instanceof AbortSignal)).toBe(true)
})
it('agent/pre-step fires BEFORE the step it precedes opens (events land outside the step)', async () => {