---
id: da0789e9-c0cb-412e-b4eb-bc742f33a32e
type: decision
title: "Phase 4 Game Service + WebSocket Plan"
tags: [mantimon-tcg, python, websocket, socketio, architecture, planning]
importance: 0.7
confidence: 0.8
created: "2026-01-28T21:51:09.186197+00:00"
updated: "2026-01-28T21:51:09.186197+00:00"
---

Created detailed 18-task project plan for Phase 4: WebSocket server with python-socketio, GameService lifecycle management, ConnectionManager with Redis session tracking, TurnTimeoutService, reconnection handling, REST endpoints for game management. Key architectural decisions: Socket.IO for bidirectional communication, Redis for connection state and turn timeouts, visibility filtering per player, write-behind caching pattern continues from Phase 1.