Von Halip enhanced the Git message structure within the Jitera-Product/jitera_proto repository by introducing an optional headers field, enabling the inclusion of additional metadata in Git operations. Working with protocol buffers and applying API design principles, Von updated the project_source.proto file to improve both formatting and clarity, ensuring the message structure is more extensible and easier to maintain. The work focused on a single feature delivered over one month, with changes committed in two iterations. This targeted update addressed the need for greater flexibility in Git-related metadata handling, reflecting a focused and technically sound approach to protocol buffer schema evolution.