Worked on the istio/istio repository to enhance the DestinationRule analyzer by addressing a bug that caused false positives when topology labels were used for service registry endpoints. Improved the analyzer’s logic to recognize topology labels added by Istio, ensuring more accurate validation and preventing incorrect pod selections during deployment. Utilized Go for backend analyzer development and applied test-driven development practices to validate the changes. Collaborated within the Istio and Kubernetes ecosystem to update the test suite and verify the fix locally, resulting in safer configuration validation and reduced operational noise for users managing service mesh deployments with topology-based endpoints.