Mathieu Guarino enhanced the SEKOIA-IO/documentation repository by delivering targeted improvements to documentation structure, clarity, and policy alignment over a two-month period. He focused on refining Markdown and YAML-based documentation, updating forwarder logs, Sekoia Operating Language usage, and data retention and password management policies to ensure consistency and governance compliance. Mathieu also improved navigation through MkDocs configuration updates and addressed user confusion by clarifying asset management behavior and correcting API naming conventions. His work emphasized documentation quality and maintainability, with careful attention to technical accuracy and readability, resulting in more accessible and reliable resources for both users and support teams.