During November 2025, Srdjan Vukelic enhanced the microsoft/mcp repository by architecting secure remote operation features and improving multi-user support. He implemented a remote HTTP server mode with OAuth authentication, leveraging ASP.NET Core and C# to enable downstream token acquisition and secure-by-default HTTPS behavior. Srdjan introduced per-user caching isolation using Azure services, replacing unsafe instance-level caching with thread-safe strategies for both CLI and web API scenarios. He also integrated CancellationToken support throughout asynchronous pathways, improving responsiveness and cancellation handling. His work included updating documentation and tooling, reflecting a deep focus on scalable backend development and robust operational guidance.