Ethan focused on improving codebase quality for the milvus repository by addressing non-functional issues that impact maintainability and developer experience. During this period, he identified and corrected typos in both import paths and Kafka client log messages, ensuring that the codebase remained consistent and reducing the risk of misconfigurations. His work involved Go programming and leveraged skills in bug fixing, logging, and refactoring. By clarifying log outputs and correcting import declarations, Ethan enhanced the reliability of the development workflow. Although no new features were introduced, his targeted fixes contributed to smoother onboarding and more efficient triage for the engineering team.