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fix: 修复缓存

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claude-code-best
2026-04-13 20:09:23 +08:00
parent fce40fed1f
commit be80da4ce0
3 changed files with 61 additions and 3 deletions
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15
src/services/langfuse/tracing.ts
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@@ -68,7 +68,12 @@ export function recordLLMObservation(
provider: string
input: unknown
output: unknown
usage: { input_tokens: number; output_tokens: number }
usage: {
input_tokens: number
output_tokens: number
cache_creation_input_tokens?: number
cache_read_input_tokens?: number
}
startTime?: Date
endTime?: Date
completionStartTime?: Date
@@ -109,11 +114,17 @@ export function recordLLMObservation(
gen.otelSpan.setAttribute(LangfuseOtelSpanAttributes.TRACE_USER_ID, userId)
}
// Anthropic splits input into uncached + cache_read + cache_creation.
// Langfuse's "input" should be the total prompt tokens so cost calc is correct.
const cacheRead = params.usage.cache_read_input_tokens ?? 0
const cacheCreation = params.usage.cache_creation_input_tokens ?? 0
gen.update({
output: params.output,
usageDetails: {
input: params.usage.input_tokens,
input: params.usage.input_tokens + cacheCreation + cacheRead,
output: params.usage.output_tokens,
...(cacheRead > 0 && { cache_read: cacheRead }),
...(cacheCreation > 0 && { cache_creation: cacheCreation }),
},
})