Function recordStepUsage

packages/agent-core/src/loop/run-turn.ts:74–79

(
    stepUsage: TokenUsage,
  )

  let stopReason: LoopTurnStopReason = 'end_turn';
  let activeStep: number | undefined;
  const recordStepUsage = async (
    stepUsage: TokenUsage,
  ): Promise<RecordStepUsageResult | void> => {
    usage = addUsage(usage, stepUsage);
    return hostRecordStepUsage?.(stepUsage);
  };

  try {
    while (true) {