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fix(ai): align Anthropic stream handling (#38733)

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Aiden Cline 2026-07-24 14:23:35 -05:00 • committed by GitHub
commit 49bec25ae5
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4 changed files with 217 additions and 29 deletions
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15
packages/ai/src/protocols/utils/lifecycle.ts
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@ -14,16 +14,19 @@ export const stepStart = (state: State, events: LLMEvent[]): State => {
return { ...state, stepStarted: true }
}
export const textDelta = (state: State, events: LLMEvent[], id: string, text: string): State => {
export const textStart = (state: State, events: LLMEvent[], id: string, providerMetadata?: ProviderMetadata): State => {
if (state.text.has(id)) return state
const stepped = stepStart(state, events)
if (stepped.text.has(id)) {
events.push(LLMEvent.textDelta({ id, text }))
return stepped
}
events.push(LLMEvent.textStart({ id }), LLMEvent.textDelta({ id, text }))
events.push(LLMEvent.textStart({ id, providerMetadata }))
return { ...stepped, text: new Set([...stepped.text, id]) }
}
export const textDelta = (state: State, events: LLMEvent[], id: string, text: string): State => {
const started = textStart(state, events, id)
events.push(LLMEvent.textDelta({ id, text }))
return started
}
export const reasoningStart = (
state: State,
events: LLMEvent[],