Mark Cohen focused on enhancing documentation for the awslabs/aws-athena-query-federation repository, specifically targeting the onboarding experience for Athena Federated Queries. He revised the Getting Started guide and README using Markdown, clarifying usage instructions and correcting steps related to engine version upgrades. Mark’s technical writing skills were applied to improve the readability and accuracy of setup and deployment instructions, aiming to reduce misconfigurations and support overhead. By streamlining onboarding steps, he enabled faster adoption for users integrating federated data sources. The work demonstrated depth in documentation practices, emphasizing clarity and precision to address common pain points in user onboarding and deployment.