Worked on improving the stability and correctness of geometry computations in the ferdymercury/root repository by addressing an interface mismatch and enforcing const-correctness for the ComputeNormal method within the vecgeom geometry module. Focused on aligning the derived TGeoVGShape class with the base TGeoBBox to ensure proper inheritance and type safety, which reduces runtime errors during geometry traversals. Utilized C++ and applied principles of software engineering and geometry to enhance code maintainability and safety. Although no new features were introduced during this period, the work laid a solid foundation for future development by clarifying interface contracts and improving computational reliability.