Swapy Agarwal developed cross-repository push notification systems for the a2aproject/a2a-python and a2aproject/a2a-samples repositories, focusing on enhancing real-time task visibility and automating downstream processes. He implemented an InMemoryPushNotifier and integrated it with the DefaultRequestHandler, enabling the A2A server to send notifications upon task completion or status updates. In the agent executor, he introduced httpx.AsyncClient for asynchronous task updates, ensuring efficient notification delivery. Working primarily in Python and TypeScript, Swapy applied skills in API design, backend development, and system integration. The work demonstrated depth in asynchronous programming and delivered business value by streamlining notification workflows without introducing major bugs.