## Feature Already Exists - Triage Complete **Status:** ✅ FULLY IMPLEMENTED The WebSocket client hook requested in this issue **already exists** at: - `src/trckr_plow/web/frontend/src/hooks/useWebSocket.ts` (212 lines) ### All Acceptance Criteria Met: - ✅ Hook connects to WebSocket URL on mount - ✅ Connection state is exposed and accurate (connecting, connected, disconnected, error) - ✅ Auto-reconnect with exponential backoff (max 30s) - ✅ Messages are parsed and dispatched by message_type - ✅ send() function provided for outbound messages - ✅ Connection errors handled gracefully - ✅ No memory leaks on unmount ### All Tasks Complete: - ✅ `src/hooks/useWebSocket.ts` created - ✅ Connection state management implemented - ✅ Auto-reconnect with exponential backoff - ✅ JSON parsing and message_type dispatch - ✅ send() function for outbound messages - ✅ Error handling - ✅ Cleanup on unmount **Recommendation:** Cancel as duplicate - feature is fully implemented. See full triage report: `/tmp/triage-PLOW-52.md`