realtime-communication-bundle

# Real-Time Communication Bundle Agent uses this bundle for real-time bidirectional communication using SignalR or WebSockets. ## Activation | Prompt Scope | Use This Bundle | Route Detail | |---|---|---| | Add SignalR to application | Yes | Agent uses signalr-patterns | | Real-time notifications to clients | Yes | Agent uses signalr-patterns | | Bidirectional communication | Yes | Agent uses signalr-patterns | | Simple Server-Sent Events | No | Agent uses built-in SSE without SignalR | ## Coverage Matrix | Track | Specialist Skill | Agent Uses When | |---|---|---| | SignalR | `signalr-patterns` | Hubs, connection lifecycle, groups, scaling in scope | ## Workflow | Step | Agent Action | Test | Pass | |---|---|---|---| | 1. Classify need | Agent determines if SignalR fits the requirement. | Agent verifies bidirectional or broadcast need. | Requirement matches SignalR capabilities. | | 2. Apply SignalR skill | Agent uses signalr-patterns specialist skill. | Agent records skill application. | SignalR configured correctly. | | 3. Configure scaling | Agent adds Redis/Service Bus backplane when multi-server. | Inspect backplane configuration. | Backplane configured for scale-out. | | 4. Verify connectivity | Agent tests hub connection and message flow. | Connect client and send/receive messages. | Messages flow bidirectionally. | ## Pattern Selection Guide | Requirement | Recommended Approach | Notes | |---|---|---| | Bidirectional RPC | SignalR | Supports multiple transports, automatic reconnection | | Server-to-client only | Server-Sent Events or SignalR | SSE simpler for one-way push | | High-performance binary | SignalR with MessagePack | Use MessagePack protocol | | Multi-server deployment | SignalR + Redis/Service Bus | Required for scale-out | ## Verification Matrix | Test | Action | Pass | |---|---|---| | Connection | Client connects to hub. | Connection established successfully. | | Server-to-client | Server invokes client method. | Client receives invocation. | | Client-to-server | Client invokes hub method. | Server executes method. | | Reconnection | Disconnect and reconnect client. | Client reconnects automatically. | ## Common Pitfalls | Pitfall | Agent Fix | |---|---| | No backplane on multi-server | Agent adds Redis or Azure Service Bus backplane. | | Missing CORS configuration | Agent adds SignalR-compatible CORS policy. | | Synchronous hub methods | Agent converts hub methods to async. | | No authentication | Agent adds hub authorization attributes. | ## Outputs - SignalR hub implementation - Client connection configuration - Backplane setup for scale-out (when needed) - Real-time message flow verification