During November 2024, contributed to the OpenMS/OpenMS repository by implementing feature annotation support in the Deisotoper module. This work introduced an annotate_features parameter, enabling the annotation of feature indices in output files to enhance traceability and facilitate downstream quality assurance. The solution was developed in C++ and integrated seamlessly with existing data processing workflows, aligning with reproducibility and feature tracking objectives in spectral analysis. The approach demonstrated proficiency in C++ development and software engineering, with attention to maintainability and extensibility. Additionally, the work laid the foundation for improved Python bindings, supporting broader interoperability within the OpenMS ecosystem.