[cherry-pick] Fix missing reasoningEffort telemetry for Claude models#309646
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bhavyaus merged 1 commit intorelease/1.116from Apr 13, 2026
Merged
[cherry-pick] Fix missing reasoningEffort telemetry for Claude models#309646bhavyaus merged 1 commit intorelease/1.116from
bhavyaus merged 1 commit intorelease/1.116from
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Cherry-pick of #309639 from
main.Cherry-pick of #308325.
Problem
The
reasoningEfforttelemetry property onresponse.successandresponse.errorevents was only reading fromrequestBody.reasoning?.effort, which is set by the Responses API path (OpenAI models).Claude models use the Messages API path, which sets effort via
requestBody.output_config?.effortinstead. As a result, reasoning effort was silently missing from telemetry for all Claude model requests.Fix
Added a fallback:
requestBody.reasoning?.effort ?? requestBody.output_config?.efforton bothresponse.successandresponse.errortelemetry events so the effort level is captured regardless of which API path is used.Impact
response.success— now logsreasoningEffortfor Claude modelsresponse.error— now logsreasoningEffortfor Claude modelsreasoning.effortpath is checked first)