Worked on the gpu-mode/discord-cluster-manager repository to enhance backend security by generalizing error handling for unauthorized authentication headers. Focused on API development using Python, the update removed a hard-coded user reference from error messages, reducing the risk of exposing sensitive information in logs and user-facing outputs. This change introduced a more generic and auditable error path, aligning with security-first practices while maintaining the stability of cluster management workflows. The work emphasized backend development principles, ensuring that authentication errors are handled securely and consistently without impacting existing functionality, and contributed to a more robust and privacy-conscious authentication process.