During June 2025, Buzin enhanced the reliability and diagnosability of the Gel.ai RAG integration within the geldata/gel-python repository. He focused on backend development and API integration, implementing robust error handling and detailed logging using Python. By surfacing server error messages and introducing comprehensive HTTP error checks in both RAGClient and AsyncRAGClient, Buzin enabled faster issue diagnosis and reduced support time for users. His work included raising precise exceptions and logging granular error details, which improved the overall stability of Gel.ai interactions. The depth of these changes addressed core reliability concerns and strengthened the foundation for future development.