Charan focused on backend reliability and observability in Go SDKs, addressing concurrency and logging issues in google/go-github and Azure/azure-sdk-for-go. In google/go-github, Charan improved test reliability by replacing a plain integer with an atomic counter for rate limit tests, ensuring thread-safe increments and eliminating race conditions. For Azure/azure-sdk-for-go, Charan enhanced telemetry accuracy by escaping URL paths in ResponseError logs, preventing misleading representations in monitoring tools. Throughout the month, Charan applied Go, concurrency handling, and testing expertise to deliver targeted, high-value bug fixes. The work demonstrated depth in diagnosing subtle backend issues and implementing robust, maintainable solutions.