Titechnatume enhanced resource management in the traP-jp/traO-Judge-judge repository by implementing automatic cleanup for temporary files used by the ReadonlyFile component. Leveraging Rust’s ownership model and RAII patterns, Titechnatume introduced the Drop trait to ensure temporary files are reliably deleted when they go out of scope, reducing the risk of resource leaks during long-running judge workflows. The solution included robust error handling to gracefully manage cleanup failures, improving both reliability and observability. This work demonstrated a strong grasp of file management and resource lifecycle best practices in Rust, resulting in safer and more maintainable code for the project.