dotnet-efficient-validationlisted

# Efficient .NET validation ## When to use Use this skill before any execution of: - `dotnet build`; - test discovery or execution with VSTest or Microsoft.Testing.Platform (MTP); - `dotnet publish`; - `dotnet run`; - validation of a C# solution, project, or test. ## Procedure 1. Identify the directly affected project or solution. For tests, determine the runner under **Runner detection** before choosing arguments. 2. Prefer the most specific test. In VSTest, use `--filter`; for MTP, read [references/mtp.md](references/mtp.md) in full before listing or running tests. 3. If restore assets are missing or package references changed, restore once: ```powershell rtk dotnet restore <project-or-solution> --nologo --verbosity:minimal ``` 4. With updated assets, build without restore only when a valid build does not already exist: ```powershell rtk dotnet build <project-or-solution> --no-restore --nologo --verbosity:minimal ``` 5. Reuse the build only for the same code, configuration, framework, and runtime. In **VSTest**, run without rebuilding or restoring: ```powershell rtk dotnet test <project-or-solution> --no-build --no-restore --nologo --logger "console;verbosity=minimal" ``` To discover names or investigate a filter with no matches, add `--list-tests` and check the listed tests. Listing does not replace execution. In MTP, use the command for the mode identified in the reference. 6. Run `dotnet publish` only when the published artifact