Worked on the KIT-CMS/CROWN repository to enhance the GenParticles module by improving documentation accuracy and standardizing variable naming conventions. Focused on code maintenance and refactoring in C++, the developer addressed inconsistencies in PDG ID naming by updating all relevant headers and source files from pdgid to pdg_id, ensuring uniformity throughout the codebase. These changes were implemented through three well-documented commits, providing clear traceability for future reviews and onboarding. The work reduced the risk of confusion in downstream physics workflows and made the codebase more accessible for new contributors, emphasizing maintainability and clarity in both documentation and implementation.