Worked on the cp2k/cp2k repository to enhance the robustness of output related to RI basis set contraction coefficients. Addressed a critical bug by correcting field-width overflow in Fortran output formatting, ensuring that numerical data is consistently and accurately represented. This fix improved the reliability and reproducibility of scientific results, particularly in automated parsing and downstream workflows. Demonstrated expertise in Fortran programming, numerical methods, and scientific computing by focusing on the stability of basis set I/O code. The work reduced the risk of runtime errors in automated pipelines and contributed to more dependable output generation for scientific applications.