Surface reasoning tokens in exec JSON usage#19308
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etraut-openai merged 1 commit intomainfrom Apr 24, 2026
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Summary
Fixes #19022.
codex exec --jsoncurrently emitsturn.completed.usagewith input, cached input, and output token counts, but drops the reasoning-token split that Codex already receives through thread token usage updates. Programmatic consumers that rely on the JSON stream, especially ephemeral runs that do not write rollout files, need this field to accurately display reasoning-model usage.This PR adds
reasoning_output_tokensto the public exec JSONUsagepayload and maps it from the existingThreadTokenUsageUpdatedtotal token usage data.Verification
event_processor_with_json_output::token_usage_update_is_emitted_on_turn_completionsoturn.completed.usage.reasoning_output_tokensis asserted.run()andrunStreamed()so TypeScript consumers see the new usage field.cargo test -p codex-exec.pnpm --filter ./sdk/typescript run build.pnpm --filter ./sdk/typescript run lint.pnpm --filter ./sdk/typescript exec jest --runInBand --testTimeout=30000.