Aadik K. developed the ClientContext: Context Elements API for the grpc/grpc repository, delivering a public C++ API that enables attaching context elements to ClientContext. The implementation introduced a type allowlist and a registry system to manage these elements, supporting extensibility and safe cross-RPC propagation. By designing the Propagate mechanism, Aadik ensured that context elements could be securely copied into the arena, facilitating reliable data transfer between RPCs. The initial allowlist included TelemetryLabel, laying the groundwork for improved observability. This work demonstrated depth in C++ API development, client-server architecture, and gRPC, focusing on robust feature delivery and architectural foundations.