Worked on enhancing the ASP.NET Core routing documentation in the dotnet/AspNetCore.Docs repository by delivering a comprehensive update to the list of default route constraints. Focused on technical writing and documentation using Markdown, the work clarified the behavior and expected matches for each constraint, including the addition of new 'file' and 'nonfile' constraints. This update improved the readability and completeness of the routing fundamentals guide, supporting faster developer onboarding and reducing potential misconfigurations. The approach emphasized clear, detailed explanations and alignment with documentation quality standards, ensuring that the guidance is both accessible and technically accurate for the developer community.