Worked on the rosetta-models/common-domain-model repository to update the Participants Directory, adding a new participant entry with an enrollment date to improve roster accuracy and onboarding readiness. Focused on enhancing documentation quality, the work involved editing and maintaining the Participants.md file using Markdown, ensuring that participant data remained current and traceable. No bugs were addressed during this period, as the effort centered on documentation hygiene and data governance. This update supports downstream analytics and regulatory reporting by providing accurate participant information, demonstrating attention to detail and a methodical approach to documentation management within the repository’s collaborative development environment.