Pengwa enhanced the modelcontextprotocol/python-sdk by developing improved diagnostics and error logging for JSON-RPC message parsing. Focusing on client-server communication, Pengwa implemented structured error handling and detailed logging for cases where JSON-RPC messages failed to parse or validate. This approach, using Python and leveraging robust logging techniques, enables faster identification and resolution of issues within the JSON-RPC pipeline. The work addressed the need for greater observability and reliability in distributed systems, making it easier for developers to diagnose communication problems. Over the course of the month, Pengwa’s contributions deepened the SDK’s error handling capabilities without introducing new bug fixes.