feat(usage): pure usage normalizer + accumulators (Task #5)#21
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lubobill1990 wants to merge 1 commit into
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feat(usage): pure usage normalizer + accumulators (Task #5)#21lubobill1990 wants to merge 1 commit into
lubobill1990 wants to merge 1 commit into
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- src/lib/usage-normalizer.ts: NormalizedUsage shape + helpers for OpenAI / Anthropic / embeddings, plus streaming accumulators that watch for include_usage / message_start+message_delta and finalize to NormalizedUsage. UsageMissingError raised if OpenAI stream finishes without usage. Tests: OpenAI/Anthropic/embeddings normalize, OpenAI accumulator capture + missing-usage error, Anthropic accumulator aggregation + sane zeros. Refs #5 Co-Authored-By: Claude Opus 4 <noreply@anthropic.com>
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Summary
src/lib/usage-normalizer.ts(no DB / network / state)Test plan
Refs #5
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