Function normalizeSnapshot

plugins/plugin-eval/src/core/observed-usage.js:87–120

(candidate, sourcePath, index)

}

function normalizeSnapshot(candidate, sourcePath, index) {
  const extracted = extractUsagePayload(candidate);
  if (!extracted) {
    return null;
  }

  const usage = extracted.usage || {};
  const inputTokens = toNumber(usage.input_tokens);
  const outputTokens = toNumber(usage.output_tokens);
  const totalTokens = toNumber(usage.total_tokens) ?? ((inputTokens || 0) + (outputTokens || 0));
  const cachedTokens =
    toNumber(usage.input_token_details?.cached_tokens) ??
    toNumber(usage.cached_tokens) ??
    0;
  const reasoningTokens =
    toNumber(usage.output_tokens_details?.reasoning_tokens) ??
    toNumber(usage.reasoning_tokens) ??
    0;

  if (inputTokens === null && outputTokens === null && totalTokens === null) {
    return null;
  }

  return {
    id: extracted.responseId || `${path.basename(sourcePath)}#${index + 1}`,
    label: extracted.label || null,
    sourcePath,
    inputTokens: inputTokens ?? 0,
    outputTokens: outputTokens ?? 0,
    totalTokens,
    cachedTokens,
    reasoningTokens,
  };
}

function collectSnapshots(value, sourcePath, results) {
  if (Array.isArray(value)) {