Worked on enhancing the Nearby Connections API within the google/nearby repository by expanding the OperationResultCode enums and updating Protocol Buffers definitions to support broader connection-related functionality. Focused on improving error reporting and diagnostics, the developer updated the connections_enums.proto file in C++ to introduce new enum values and extend the valid operation code range. These changes increased the catalog of string names, enabling richer error reporting and improved observability for future development. The work delivered a forward-compatible change set, laying the groundwork for additional features and facilitating faster issue resolution through more robust and descriptive API responses and diagnostics.