Function useRemoteSession

src/hooks/useRemoteSession.ts:79–616

({
  config,
  setMessages,
  setIsLoading,
  onInit,
  setToolUseConfirmQueue,
  tools,
  setStreamingToolUses,
  setStreamMode,
  setInProgressToolUseIDs,
}: UseRemoteSessionProps)

 * - Permission request/response flow via existing ToolUseConfirm queue
 */
export function useRemoteSession({
  config,
  setMessages,
  setIsLoading,
  onInit,
  setToolUseConfirmQueue,
  tools,
  setStreamingToolUses,
  setStreamMode,
  setInProgressToolUseIDs,
}: UseRemoteSessionProps): UseRemoteSessionResult {
  const isRemoteMode = !!config

  const setAppState = useSetAppState()
  const setConnStatus = useCallback(
    (s: AppState['remoteConnectionStatus']) =>
      setAppState(prev =>
        prev.remoteConnectionStatus === s
          ? prev
          : { ...prev, remoteConnectionStatus: s },
      ),
    [setAppState],
  )

  // Event-sourced count of subagents running inside the remote daemon child.
  // The viewer's own AppState.tasks is empty — tasks live in a different
  // process. task_started/task_notification reach us via the bridge WS.
  const runningTaskIdsRef = useRef(new Set<string>())
  const writeTaskCount = useCallback(() => {
    const n = runningTaskIdsRef.current.size
    setAppState(prev =>
      prev.remoteBackgroundTaskCount === n
        ? prev
        : { ...prev, remoteBackgroundTaskCount: n },
    )
  }, [setAppState])

  // Timer for detecting stuck sessions
  const responseTimeoutRef = useRef<NodeJS.Timeout | null>(null)

  // Track whether the remote session is compacting. During compaction the
  // CLI worker is busy with an API call and won't emit messages for a while;
  // use a longer timeout and suppress spurious "unresponsive" warnings.
  const isCompactingRef = useRef(false)

  const managerRef = useRef<RemoteSessionManager | null>(null)

  // Track whether we've already updated the session title (for no-initial-prompt sessions)
  const hasUpdatedTitleRef = useRef(false)

  // UUIDs of user messages we POSTed locally — the WS echoes them back and
  // we must filter them out when convertUserTextMessages is on, or the viewer
  // sees every typed message twice (once from local createUserMessage, once
  // from the echo). A single POST can echo MULTIPLE times with the same uuid:
  // the server may broadcast the POST directly to /subscribe, AND the worker
  // (cowork desktop / CLI daemon) echoes it again on its write path. A
  // delete-on-first-match Set would let the second echo through — use a
  // bounded ring instead. Cap is generous: users don't type 50 messages