Worked on the ReactionMechanismGenerator/RMG-database repository to improve data integrity in chemical kinetics modeling. Focused on correcting the reversibility labeling for reactions X2 and X3 from Konnov 2015 Table 2, ensuring they were accurately marked as irreversible by setting the reversible flag to False. Used Python to implement and validate these changes against the chemical kinetics library, demonstrating skills in reaction mechanism development and data validation. This update addressed a critical bug that could have led to incorrect reaction direction in simulations, thereby enhancing the reliability of mechanism generation pipelines and supporting more trustworthy published datasets for downstream users.