Worked on the modelcontextprotocol/python-sdk repository to address a critical resource-management issue affecting server session lifecycles after stateless HTTP requests. Using Python and leveraging backend development and asynchronous programming skills, refactored the session termination logic by renaming the _terminate_session method to terminate and ensuring its explicit invocation from StreamableHTTPSessionManager. This change closed a potential resource leak under high-concurrency scenarios, improving the reliability and stability of client sessions. The work focused on precise lifecycle management and code clarity, aligning with best practices for API development. The update was linked to a specific commit and targeted robust session handling for scalable backend systems.