During March 2025, Frances Harris contributed to the cncf/glossary repository by authoring a comprehensive glossary entry for the term "Sidecar Container." She focused on technical writing and documentation, using Markdown to clearly explain the sidecar pattern’s role in separating concerns such as logging and monitoring from core application logic. Her work detailed the benefits and cross-platform applicability of the pattern, improving maintainability and supporting clearer communication across teams. By ensuring traceability to the implementing commit and related issues, Frances demonstrated a methodical approach to terminology governance and glossary design, delivering depth and clarity in technical documentation for containerized environments.