During December 2024, Maceachern developed the Conservative Mask Aggregation (CombineMasks) feature for the radiocosmology/draco repository, focusing on backend development and data processing using Python. This feature enables robust consolidation of multiple input masks into a single conservative mask by performing a bitwise OR operation across datasets. Maceachern implemented type validation to ensure input consistency and added checks for cross-input inconsistencies, flagging any data point present in any mask. The approach improves data quality and reliability for downstream analyses while reducing manual masking effort, establishing a scalable foundation for future masking tasks across diverse datasets in radiocosmology workflows.