Worked on enhancing TEI-encoded content for Les Caractères in the UBS_M1_TEI repository, focusing on both content quality and metadata governance. Delivered improvements to the TEI header and body, including the addition of remarks, bibliographic data, character declarations, and notes, which refined content structure and presentation. Applied XML and TEI expertise to ensure consistent rendering and support downstream processing, while also addressing content accuracy by correcting a textual error in a Horace quote. Emphasized maintainability and data fidelity through incremental, commit-based development, resulting in improved searchability, discoverability, and overall data quality within a single month of focused work.