Worked on enhancing real-time reliability in the phoenixframework/phoenix repository by implementing explicit WebSocket disconnection handling with close codes. Focused on backend development using Elixir, the work standardized how disconnect events are communicated, allowing clients to receive clear reasons for disconnections and enabling more robust reconnection strategies. This approach improved diagnostics and client-side error handling by reducing ambiguity in server-client interactions. Emphasized code quality and performance patterns while integrating the solution into Phoenix channels and transport layers. No major bugs were addressed during this period, as the primary goal was to strengthen real-time user experience and server-client contract clarity.