Worked on enhancing the central configuration module in the elastic/apm-agent-ruby repository, focusing on improving robustness and maintainability. Refactored the handling of HTTP response status codes by introducing an explicit status_code property, which clarified the processing of configuration responses and reduced the risk of misinterpretation during runtime. This change streamlined the codebase, making future extensions more straightforward and improving overall reliability. Collaborated closely with another contributor to ensure code quality through structured reviews. Utilized Ruby and Ruby on Rails for backend development, emphasizing clear, maintainable code and a methodical approach to reducing configuration errors without addressing major bugs.