Function buildTrace

scripts/export-deepseek-session-traces.ts:404–439

(
  candidate: CandidateRow,
  representativeRows: Map<string, SessionRow>,
)

}

function buildTrace(
  candidate: CandidateRow,
  representativeRows: Map<string, SessionRow>,
) {
  const representativeRow = representativeRows.get(
    candidate.representative_message_id,
  )

  if (!representativeRow) {
    throw new Error(
      `No representative row found for ${candidate.client_id}: ${candidate.representative_message_id}`,
    )
  }

  const request = getRequest(representativeRow)
  const messages = buildFinalMessages(representativeRow)

  return {
    client_id: candidate.client_id,
    model: candidate.model,
    summary: {
      provider_call_count: Number(candidate.provider_call_count),
      first_finished_at: toIso(candidate.first_finished_at),
      last_finished_at: toIso(candidate.last_finished_at),
      representative_message_id: representativeRow.id,
      representative_run_id: representativeRow.run_id,
      representative_finished_at: toIso(representativeRow.finished_at),
      representative_message_count: representativeRow.message_count,
      final_message_count: messages.length,
      tool_count: getTools(request).length,
      appended_final_response: !!representativeRow.response?.trim(),
    },
    tools: getTools(request),
    messages,
  }
}

type SessionTrace = ReturnType<typeof buildTrace>