Elisa Darthenay established the foundational architecture for chat capabilities in the EPF-MDE/git-first-steps repository, focusing on the Elisadty project. She delivered the initial project scaffolding and a placeholder function module, emphasizing modularity and future extensibility. Her work centered on file management and text-based configuration, creating clear module boundaries to streamline future development. By initializing placeholder files and baseline commits, Elisa enabled faster ramp-up for upcoming user-facing chat features and function extensions. Although no bugs were addressed during this period, her contributions provided a solid technical baseline, ensuring that subsequent feature integration would proceed efficiently and with well-organized project structure.