During July 2025, Azurite focused on backend reliability improvements for the traP-jp/traO-Judge-judge repository, addressing a critical issue in user session handling. By aligning the session_id type in the get_user function to Option<&str> to match cookie-derived values, Azurite improved the accuracy of session validation and reduced errors in user retrieval. This targeted bug fix enhanced the stability of user information access without introducing new features. Working primarily with Rust and leveraging skills in API and backend development, Azurite demonstrated depth in maintaining robust session management and ensuring the codebase remained stable through precise, well-documented engineering changes.