feat(tracing): emit token usage on spans for SGP billing#458

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levilentz/sdk-cost-tracking-update

Commits on Jul 10, 2026

feat(tracing): add usage normalization helpers for span billing contract

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feat(tracing): emit real token usage from openai_agents temporal models

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feat(tracing): emit token usage from litellm streaming and auto_send spans

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feat(adk): add turn_span helper for per-turn aggregate usage and cost

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test: fix sys.modules stub leakage and apply repo formatting

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fix(adk): warn when record_usage replaces non-dict span data

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test: adapt streaming model usage tests to next's always-emit behavior

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refactor(tracing): remove dead TemporalTracing wrapper models

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refactor(adk): record_usage accepts harness TurnUsage; drop bespoke usage helpers

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