Worked on the mathesar-foundation/mathesar repository to deliver a targeted user experience improvement in the file import process. Focused on front end development using TypeScript, the work involved standardizing and clarifying error messages related to file uploads, ensuring users receive clear guidance on allowed formats. The approach included refactoring error message handling to provide consistent feedback throughout the import flow, reducing confusion and potential support requests. By consolidating messaging logic across two commits, the changes enhanced maintainability and usability. This feature addressed a specific pain point in the import workflow, demonstrating attention to detail and a methodical approach to UX refinement.