Function saveCustomTitle

src/utils/sessionStorage.ts:2656–2677

(
  sessionId: UUID,
  customTitle: string,
  fullPath?: string,
  source: 'user' | 'auto' = 'user',
)

/* eslint-enable custom-rules/no-sync-fs */

export async function saveCustomTitle(
  sessionId: UUID,
  customTitle: string,
  fullPath?: string,
  source: 'user' | 'auto' = 'user',
) {
  // Fall back to computed path if fullPath is not provided
  const resolvedPath = fullPath ?? getTranscriptPathForSession(sessionId)
  appendEntryToFile(resolvedPath, {
    type: 'custom-title',
    customTitle,
    sessionId,
  })
  // Cache for current session only (for immediate visibility)
  if (sessionId === getSessionId()) {
    getProject().currentSessionTitle = customTitle
  }
  logEvent('tengu_session_renamed', {
    source:
      source as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
  })
}

/**
 * Persist an AI-generated title to the JSONL as a distinct `ai-title` entry.