Benjamin Guinet contributed to the SPAAM-community/AncientMetagenomeDir repository by delivering two data management features focused on expanding metagenomic metadata coverage. He enhanced material options within material.json and updated related enums to support a broader range of sample materials, while also extending the sample host list to include Mammuthus trogontherii. Working primarily with JSON and leveraging data management best practices, Benjamin ensured that all updates were fully traceable to specific repository commits, supporting auditability and alignment with the Guinet2025 data refresh. His work improved data completeness and enabled more comprehensive downstream analyses, demonstrating a methodical approach to metadata enrichment and repository maintenance.