Worked on the infiniflow/ragflow repository to address a metadata retrieval issue affecting document queries. Focused on backend development using Python, the work involved enhancing the Document class by introducing a meta_fields attribute. This change ensured that all relevant metadata is now included when documents are queried, improving both data integrity and analytics readiness. The update also streamlined the developer experience by making metadata fields more accessible through the SDK, facilitating easier downstream integration and consistent metadata handling. Over the course of the month, the primary contribution centered on this targeted bug fix, reflecting a methodical approach to backend reliability.