Worked on the basetenlabs/truss repository to enhance the stability and user experience of the command-line interface by addressing a critical bug related to configuration file handling. Focused on Python-based CLI development, the work introduced robust error handling and improved file I/O logic to gracefully manage scenarios where the .trussrc configuration file is missing during the truss configure process. By surfacing clear messaging and preventing application crashes, the update reduced user confusion and support overhead. The solution was directly linked to a tracked issue, ensuring maintainability and traceability of the fix while mitigating risks associated with configuration edge cases in user workflows.