Worked on improving the reliability of the router component in the kvcache-ai/sglang repository by enhancing the health check mechanism. Addressed a bug where health checks could produce false positives by implementing HTTP status code validation, ensuring that only successful 2xx responses are treated as healthy. Introduced centralized error handling within the health check flow to prevent unhandled errors from propagating and causing downstream failures. This update reduced the risk of false outage signals and improved service orchestration and monitoring. The work was carried out using Rust, with a focus on backend development practices and robust error management in distributed systems.