Rishikesh Devare

Use when building real-time chat, messaging, or communication features in Flutter. Covers WebSocket connection lifecycle, ping/pong keep-alive, automatic reconnection, connection state machines, listener-based event architecture, message type hierarchies with polymorphic JSON serialization, typing indicators, read/delivery receipts, presence tracking (online/offline), echo prevention, operation queuing for race conditions, rich text formatting in chat (WYSIWYG to markdown to styled rendering), message bubble rendering, keyboard-aware message list layout, BLoC-based chat component architecture, and stream-based event distribution. Also use when seeing issues with WebSocket disconnects, duplicate messages, stale presence, typing indicator bugs, or chat UI jank during keyboard animation.