Worked on the tambo-ai/tambo repository to enhance the reliability of authentication flows for MCP server integration. Addressed a user-facing issue by fixing the OAuth callback URL construction, removing a hardcoded value and instead deriving the callback from the base URL to ensure accurate redirection after authorization. This backend update, implemented in TypeScript, focused on improving maintainability and reducing authentication failures that previously led to increased support requests. Leveraging skills in API integration and OAuth, the work centralized URL management within the authentication logic, aligning with related issues and contributing to a more robust and user-friendly authorization process.