Worked on the yamadashy/repomix repository, focusing on improving the reliability of CLI source configuration handling. Addressed a bug in the Base64 output truncation logic by ensuring truncation only occurs when the truncateBase64 setting is explicitly set to 'cli', preventing unintended data loss in other configurations. Utilized TypeScript for CLI development and configuration management, updating the relevant logic in the CLI action scripts. Validated the fix through scenario-based checks to ensure consistent behavior across environments. The work emphasized stability and data integrity, integrating the changes with minimal disruption to ongoing development and without introducing new features during the period.