In February 2025, Akash Agarwal developed early data access for the TCP proxy filter in the envoyproxy/envoy repository. He designed and implemented a mechanism that buffers downstream data and exposes it to filters before the upstream connection is established, using a filter state object to manage early data flow. This required changes to filter initialization and data-path handling, enabling downstream filters to perform policy checks and observability tasks earlier in the connection lifecycle. Working primarily in C++ and YAML, Akash applied his expertise in Envoy Proxy, filter development, and network programming to deliver a feature with meaningful architectural depth.