What problem does it solve? Fixing failing tests normally requires a full rebuild and test run for every code change, which slows down the fix-verify loop. This Skill sets up Microsoft Testing Platform (MTP) hot reload so the test host stays running and automatically re-runs affected tests when code changes. ## Core Features & Use Cases - Platform Detection: Verifies the project uses Microsoft Testing Platform rather than VSTest, since hot reload only works with MTP. - Guided Setup: Walks through installing the Microsoft.Testing.Extensions.HotReload NuGet package and enabling the TESTINGPLATFORM_HOTRELOAD_ENABLED environment variable via shell or launchSettings.json. - Iterative Fix Workflow: Runs the test project with dotnet run, optionally filtered to specific failing tests for MSTest, NUnit, xUnit v3, or TUnit, then re-runs tests automatically on each code edit. - Use Case: A developer has three failing xUnit tests. After setup, they run the test project once, edit the production code, and watch the tests re-run automatically until all pass, then confirm with a full dotnet test. ## Quick Start Set up MTP hot reload in my test project so I can iterate on my failing tests without rebuilding between changes.