Worked on the google/go-github repository to implement rate limit abuse protection, focusing on improving API reliability for consumers. Developed a feature in Go that introduces a configurable client option to cap the maximum retry-after duration when secondary rate limits are encountered. Integrated this option directly into the request flow, ensuring that excessive retries are prevented and responsiveness is maintained under rate limiting conditions. Emphasized robust error handling and thorough testing by adding dedicated unit tests to validate the new behavior. The work demonstrates a methodical approach to API integration, rate limiting, and test-driven development within a widely used open source client.