During July 2025, contributed to the TeamNewPipe/NewPipeExtractor repository by enhancing code safety and maintainability through the introduction of @Nullable annotations in ListExtractor.java. This work clarified the nullability of fields and parameters such as nextPage, enabling more robust static analysis and reducing the risk of NullPointerExceptions. The approach focused on improving API clarity and preparing the codebase for future resilience and refactoring. Utilizing Java and code annotation techniques, the developer ensured commit-level traceability with clear documentation. No bugs were reported or fixed during this period, and the primary focus remained on strengthening static analysis readiness and maintainable Java development practices.