NexusRider

nexus-rider is an MCP (Model Context Protocol) proxy plugin designed for JetBrains Rider. It starts a local HTTP server (default port 6800) to automatically discover Unreal Engine instances and forwards tool calls from AI clients (such as Cursor, CodeBuddy, and Windsurf) to the NexusLink plugin on the UE side via WebSocket. The plugin primarily provides the following features: 1. **Instance Discovery and Connection**: Automatically scans specified port ranges to discover UE instances and displays the connection status in the Rider status bar. 2. **AI Tool Forwarding**: Acts as an intermediary layer to forward requests from AI clients to UE, enabling the AI to operate UE capabilities such as Blueprints, assets, and PIE (Play In Editor). 3. **Flexible Configuration Management**: Supports configuration of the MCP port, scanning range, write operation gating (e.g., restricting delete/rename operations), and local area network access. 4. **Authentication Mechanism**: Provides Bearer Token authentication to ensure secure communication between the AI client and the proxy server. Using this plugin requires the companion NexusLink plugin installed in UE version 4.26+ and the use of Rider version 2025.3+.