Function parseClaudeJson

scripts/benchmark-utils.mjs:196–227

(stdout)

 * Returns { usage, result, durationMs, numTurns, costUsd, isError }.
 */
export function parseClaudeJson(stdout) {
  let data;
  try {
    data = JSON.parse(stdout.trim());
  } catch {
    return {
      usage: { inputTokens: 0, outputTokens: 0, totalTokens: 0 },
      result: stdout.trim(),
      durationMs: 0,
      numTurns: 0,
      costUsd: 0,
      isError: true,
    };
  }

  const usage = data.usage ?? {};
  const inputTokens = usage.input_tokens ?? 0;
  const outputTokens = usage.output_tokens ?? 0;

  return {
    usage: {
      inputTokens,
      outputTokens,
      totalTokens: inputTokens + outputTokens,
    },
    result: data.result ?? '',
    durationMs: data.duration_ms ?? 0,
    numTurns: data.num_turns ?? 0,
    costUsd: data.total_cost_usd ?? 0,
    isError: data.is_error ?? false,
  };
}

/**
 * Build Claude Code CLI args for execution benchmark.