Andrew YK focused on deprecating legacy documentation within the github/github-mcp-server repository, specifically targeting outdated pull request review tooling. He removed documentation for the add_pull_request_review_comment and create_pull_request_review endpoints, aligning the repository with an updated pull request workflow strategy. Using Git and GitHub for version control, Andrew emphasized documentation hygiene and deprecation planning, ensuring that users have clearer guidance and reducing ongoing maintenance requirements. His work, primarily in Markdown, improved traceability and cross-team alignment while freeing resources for higher-value features. The depth of the contribution lay in thoughtful planning and disciplined execution rather than in broad technical scope.