Worked on the alex000kim/skypilot repository to deliver integration of VastData S3-compatible object storage, expanding the platform’s storage options and improving user setup flexibility. The implementation involved Python development focused on API design and cloud storage integration, with a refactored credential validation system that consolidated profile checks for better maintainability. Enhanced error messaging and dynamic cloud validation replaced static lists, providing more accurate feedback and reducing user friction. Documentation and user guidance were updated to reflect these changes, while expanded test coverage and inclusion in smoke tests ensured reliability. The work emphasized robust testing and clear documentation to support ongoing development.