Worked on the modelcontextprotocol/rust-sdk repository to address server-side resource management for Server-Sent Events (SSE). Focused on backend development using Rust and the Tokio async runtime, implementing a solution that monitors client connections and ensures proper cleanup when an SSE client disconnects. By linking the cleanup process to the closure of the client’s sender channel, the work prevented resource leaks and improved server scalability under high client churn. The approach involved transactional session management and demonstrated a strong grasp of concurrency patterns in Rust. All changes were traceable to specific commits, ensuring clear documentation and maintainability of the codebase.