Worked on the JETSCAPE/JETSCAPE repository to improve data quality in physics analysis workflows by refining hadron filtering within the Qnvector writer. Addressed a bug that previously allowed irrelevant particle data to be included in outputs, implementing status-based filtering logic to ensure only hadrons from iSS (status 11) and SMASH (status 27) were retained. This change, developed in C++ and leveraging data filtering expertise, reduced noise and improved the precision and reproducibility of downstream analyses. The work focused on enhancing the reliability of Qnvector outputs, with all modifications tracked through a clear and traceable commit for future reference and collaboration.