Function agenticSessionSearch

src/utils/agenticSessionSearch.ts:146–307

(
  query: string,
  logs: LogOption[],
  signal?: AbortSignal,
)

 * based on semantic understanding of the query.
 */
export async function agenticSessionSearch(
  query: string,
  logs: LogOption[],
  signal?: AbortSignal,
): Promise<LogOption[]> {
  if (!query.trim() || logs.length === 0) {
    return []
  }

  const queryLower = query.toLowerCase()

  // Pre-filter: find sessions that contain the query term
  // This ensures we search relevant sessions, not just recent ones
  const matchingLogs = logs.filter(log => logContainsQuery(log, queryLower))

  // Take up to MAX_SESSIONS_TO_SEARCH matching logs
  // If fewer matches, fill remaining slots with recent non-matching logs for context
  let logsToSearch: LogOption[]
  if (matchingLogs.length >= MAX_SESSIONS_TO_SEARCH) {
    logsToSearch = matchingLogs.slice(0, MAX_SESSIONS_TO_SEARCH)
  } else {
    const nonMatchingLogs = logs.filter(
      log => !logContainsQuery(log, queryLower),
    )
    const remainingSlots = MAX_SESSIONS_TO_SEARCH - matchingLogs.length
    logsToSearch = [
      ...matchingLogs,
      ...nonMatchingLogs.slice(0, remainingSlots),
    ]
  }

  // Debug: log what data we have
  logForDebugging(
    `Agentic search: ${logsToSearch.length}/${logs.length} logs, query="${query}", ` +
      `matching: ${matchingLogs.length}, with messages: ${count(logsToSearch, l => l.messages?.length > 0)}`,
  )

  // Load full logs for lite logs to get transcript content
  const logsWithTranscriptsPromises = logsToSearch.map(async log => {
    if (isLiteLog(log)) {
      try {
        return await loadFullLog(log)
      } catch (error) {
        logError(error as Error)
        // If loading fails, use the lite log (no transcript)
        return log
      }
    }
    return log
  })
  const logsWithTranscripts = await Promise.all(logsWithTranscriptsPromises)

  logForDebugging(
    `Agentic search: loaded ${count(logsWithTranscripts, l => l.messages?.length > 0)}/${logsToSearch.length} logs with transcripts`,
  )

  // Build session list for the prompt with all searchable metadata
  const sessionList = logsWithTranscripts