Worked on the envoyproxy/envoy repository to enhance HTTP/2 metadata handling by introducing a configurable maximum metadata size within Http2ProtocolOptions, defaulting to 1 MiB. This feature was implemented in C++ and protobuf, updating protocol buffer definitions, changelogs, and the MetadataDecoder to enforce the new limit during connection handling. The approach included comprehensive unit testing of the MetadataDecoder across various size configurations to ensure robust validation. By focusing on configuration management and network protocols, the work aligned with Envoy’s goals for resilience and performance, providing maintainers with greater control over HTTP/2 metadata resource usage and protocol compliance.