Function resetTaskList

src/utils/tasks.ts:148–189

(taskListId: string)

 * Uses file locking to prevent race conditions when multiple Claudes run in parallel.
 */
export async function resetTaskList(taskListId: string): Promise<void> {
  const dir = getTasksDir(taskListId)
  const lockPath = await ensureTaskListLockFile(taskListId)

  let release: (() => Promise<void>) | undefined
  try {
    // Acquire exclusive lock on the task list
    release = await lockfile.lock(lockPath, LOCK_OPTIONS)

    // Find the current highest ID and save it to the high water mark file
    const currentHighest = await findHighestTaskIdFromFiles(taskListId)
    if (currentHighest > 0) {
      const existingMark = await readHighWaterMark(taskListId)
      if (currentHighest > existingMark) {
        await writeHighWaterMark(taskListId, currentHighest)
      }
    }

    // Delete all task files
    let files: string[]
    try {
      files = await readdir(dir)
    } catch {
      files = []
    }
    for (const file of files) {
      if (file.endsWith('.json') && !file.startsWith('.')) {
        const filePath = join(dir, file)
        try {
          await unlink(filePath)
        } catch {
          // Ignore errors, file may already be deleted
        }
      }
    }
    notifyTasksUpdated()
  } finally {
    if (release) {
      await release()
    }
  }
}

/**
 * Gets the task list ID based on the current context.