Arthit focused on improving documentation quality and maintainability across the microsoft/sbom-tool and Shopify/grpc repositories. He enhanced onboarding and reduced ambiguity by updating SPDX references, standardizing code blocks, and correcting technical typos in both Markdown and C# files. In Shopify/grpc, he refined the grpcio-tools README using Python and RST, aligning compatibility notes with current Python versions and updating branding to macOS for consistency. Arthit’s work emphasized technical writing, link management, and documentation updates, ensuring that project documentation accurately reflected tool capabilities and standards. His contributions addressed both immediate clarity issues and laid groundwork for future maintainability and onboarding.