During May 2025, Ilarin developed a Production Data File Integrity Verification Plugin for the JeffersonLab/halld_recon repository. This plugin, written in C++ and utilizing shell scripting for build integration, computes two event-based control word checksums to validate the integrity of evio and hddm production data files. By automatically emitting integrity results, the plugin enables early detection of data corruption during production runs, thereby supporting robust data quality and reducing risks to downstream analyses. Ilarin’s work demonstrated proficiency in plugin development, build systems, and data integrity techniques, delivering a focused solution that enhances reliability in high-throughput scientific data environments.