Worked on enhancing profiling capabilities in the getsentry/sentry-protos repository by introducing a new TRACE_ITEM_TYPE_PROFILE_FUNCTION category to the TraceItemType enum. This addition, implemented in both Protocol Buffers and Rust, enabled explicit categorization of profile function data within traces, supporting more granular profiling and improved performance diagnostics. The work focused on ensuring cross-language consistency between proto definitions and Rust handling, laying a foundation for richer observability and future profiling enhancements. No major bugs were reported during this period, allowing concentrated effort on feature delivery and documentation. Utilized skills in API development, Rust, and Protocol Buffers throughout the project.