Write production C# code following repository coding standards and architecture. Triggers: "write code", "implement feature", "add feature", "fix bug", "create class", "add method", "implement interface", "refactor", "add property", "extend functionality", any GitHub issue number referencing a feature or bug fix.
Write unit tests for this repository using NUnit following repository best practices. Triggers: "write unit tests", "add tests", "create tests", "add unit tests", "test coverage", "missing tests", any GitHub issue number referencing unit tests.
Write and review XML API documentation following .NET guidelines. Triggers: "document class", "add XML docs", "write XML documentation", "add triple-slash comments", "review documentation quality", "check docs for errors", "fix doc issues", "fill in missing docs", "remove To be added placeholders", API documentation requests.
Write and maintain documentation for Catel. Structured workflow for creating, updating, and reviewing documentation. Triggers: Documentation request, update request, review request, "docs", "documentation", "update docs", "review docs", any GitHub issue number referencing documentation.