In December 2025, Madhav Bnk enhanced the spinnaker/spinnaker repository by improving the reliability of its GitHub integration. He implemented a token refresh mechanism for GitHub App authentication, ensuring seamless and uninterrupted access. Using Java and Spring, Madhav introduced a dedicated authenticator factory to manage token lifecycles and added integration tests with real HTTP calls to validate authentication flows. He also updated dependencies to BOM-managed versions, increasing system stability and security. By addressing rate-limit logging issues, Madhav reduced operational noise and improved monitoring clarity. His work focused on backend development, API integration, and robust testing within a complex authentication context.