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refactor(agent): unify sourced message delivery

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_Kerman
2026-07-24 22:38:50 +08:00
parent 009d113e0e
commit 992cf894af
197 changed files with 1890 additions and 2132 deletions
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8
packages/compact/compact-basic/src/region.ts
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@@ -177,10 +177,10 @@ export async function compactSurfaceRegion(
/**
* Reconstruct the last routed request's cacheable prefix for the shadowed
* region: its system prompt and tool schemas, then the request-only message
* prefix followed by the region's own derived messages in surface order. The
* summarizer appends only the compaction instruction after this, so the call
* is a genuine prefix of the conversation and reuses the provider's KV cache.
* region: its system prompt and tool schemas, then the region's own derived
* messages in surface order. The summarizer appends only the compaction
* instruction after this, so the call is a genuine prefix of the conversation
* and reuses the provider's KV cache.
* @param session - session supplying the request header and per-node projection.
* @param shadowedSeqs - the surface-node seqs, in order, being compacted.
* @returns the replayed conversation prefix to condense.

2
packages/compact/compact-basic/src/summarizer.ts
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@@ -78,7 +78,7 @@ export interface SummarizationInput {
readonly system?: string
/** The conversation's tool schemas, reused for prefix-cache alignment; absent when the request carried none. */
readonly tools?: readonly ToolSchema[]
/** The request prefix followed by the shadowed region, in surface order, that precedes the compaction instruction. */
/** The shadowed region, in surface order, that precedes the compaction instruction. */
readonly messages: readonly Message[]
}

17
packages/compact/compact-basic/tests/compact-basic.spec.ts
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@@ -546,7 +546,7 @@ describe('pressure measurement and retention', () => {
expect(session.surface.nodes.length).toBeLessThan(8)
})
it('counts the durable routed request envelope without putting its prefix on the surface', async () => {
it('counts the durable routed request envelope without putting it on the surface', async () => {
const compact = service({
auto: false,
thresholdRatio: 0.9,
@@ -555,22 +555,15 @@ describe('pressure measurement and retention', () => {
const session = conversation(2, 'x'.repeat(600))
expect(await compactIfNeeded(compact, session)).toBeNull()
const prefix = [{ role: 'user' as const, content: [{ type: 'text' as const, text: 'p'.repeat(600) }] }]
session.append('request/header', {
header: {
config: { provider: MODEL, model: MODEL },
system: 's'.repeat(600),
messagePrefix: prefix,
system: 's'.repeat(2_000),
},
reason: 'resume',
})
const result = await compactIfNeeded(compact, session)
expect(result).not.toBeNull()
expect(prefix).toHaveLength(1)
// The routed request prefix must not reach the surface as its own message
// (the compaction summary itself is an expected plugin-sourced checkpoint).
expect(session.events.some(event => event.type === 'user/message'
&& event.data.content.some(block => block.type === 'text' && block.text.includes('p'.repeat(600))))).toBe(false)
})
it('uses the latest logged request envelope without an AgentOptions override', async () => {
@@ -800,13 +793,12 @@ describe('compaction region transaction', () => {
expect(replay.deriveMessages()).toEqual(session.deriveMessages())
})
it('replays the latest routed header prefix so the summarizer reuses the cache', async () => {
it('replays the latest routed header so the summarizer reuses the cache', async () => {
const compact = service()
const session = conversation(3)
const tools = [{ name: 'do_thing', description: 'd', parameters: { type: 'object' } }]
const messagePrefix: Message[] = [{ role: 'user', content: [{ type: 'text', text: 'SESSION PREFIX' }] }]
session.append('request/header', {
header: { config: { provider: MODEL, model: MODEL }, system: 'CONVERSATION SYSTEM', tools, messagePrefix },
header: { config: { provider: MODEL, model: MODEL }, system: 'CONVERSATION SYSTEM', tools },
reason: 'resume',
})
const nodes = session.surface.nodes
@@ -815,7 +807,6 @@ describe('compaction region transaction', () => {
const { input } = compact.calls[0]!
expect(input.system).toBe('CONVERSATION SYSTEM')
expect(input.tools).toEqual(tools)
expect(input.messages[0]).toEqual(messagePrefix[0])
expect(summarizedText(input)).toContain('fixture user 1')
})

10
packages/compact/compact-basic/tests/compact-loop-repro.spec.ts
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@@ -201,7 +201,7 @@ describe('CBR-001: a real-loop checkpoint is a valid boundary on both sides', ()
provider: 'unconfigured-agent-fallback',
model: 'unconfigured-agent-fallback',
})
agent.followup([{ type: 'text', text: 'do a routed multi-step task' }])
agent.followup({ content: [{ type: 'text', text: 'do a routed multi-step task' }], source: { kind: 'user' } })
await waitForIdle(ctx, agent)
expect(agent.session.requestHeader()?.config.model).toBe('mock')
@@ -219,7 +219,7 @@ describe('CBR-001: a real-loop checkpoint is a valid boundary on both sides', ()
const { ctx } = await harness(8)
try {
const agent = ctx.agentLoop.create(SessionId('post-step-order'), { provider: 'mock', model: 'mock' })
agent.followup([{ type: 'text', text: 'do tool work' }])
agent.followup({ content: [{ type: 'text', text: 'do tool work' }], source: { kind: 'user' } })
await waitForIdle(ctx, agent)
const events = [...agent.session.events]
@@ -251,7 +251,7 @@ describe('CBR-001: a real-loop checkpoint is a valid boundary on both sides', ()
const { ctx } = await harness(8)
try {
const agent = ctx.agentLoop.create(SessionId('repro'), { provider: 'mock', model: 'mock' })
agent.followup([{ type: 'text', text: 'do a long multi-step task' }])
agent.followup({ content: [{ type: 'text', text: 'do a long multi-step task' }], source: { kind: 'user' } })
await waitForIdle(ctx, agent)
const events = [...agent.session.events]
@@ -312,7 +312,7 @@ describe('context-overflow recovery across the real loop and compact-basic', ()
},
})
agent.followup([{ type: 'text', text: 'continue from history' }])
agent.followup({ content: [{ type: 'text', text: 'continue from history' }], source: { kind: 'user' } })
await agent.whenIdle()
expect(adapter.conversationRequests).toHaveLength(2)
@@ -388,7 +388,7 @@ describe('context-overflow recovery across the real loop and compact-basic', ()
seed: overflowHistorySeed(),
agentOptions: { provider: 'mock', model: 'mock' },
})
agent.followup([{ type: 'text', text: 'continue from history' }])
agent.followup({ content: [{ type: 'text', text: 'continue from history' }], source: { kind: 'user' } })
await agent.whenIdle()
expect(adapter.conversationRequests).toHaveLength(3)