During November 2025, DBMing focused on backend development for the volcengine/verl repository, addressing a critical bug in Agentloop’s image data handling during multi-round tool calls. By refining the logic for appending image data to the agent’s data structure, DBMing ensured that images were correctly managed without duplication or corruption, directly improving data integrity for downstream processes. The solution was implemented using Python and leveraged API development skills to enhance reliability within the existing backend framework. Comprehensive documentation and clear commit messages accompanied the code changes, supporting maintainability and auditability. The work demonstrated careful attention to detail and robust problem-solving.