template-instantiation

npx skills add dotnet/skills --skill template-instantiation --agent claude-code

Same command for any agent — swap --agent for codex, cursor, copilot.

# Template Instantiation This skill creates .NET projects from templates using `dotnet new` CLI commands, with guidance for parameter validation, Central Package Management adaptation, and multi-project composition. > **Match the workspace, then stop.** The highest-value move is aligning the new project with the repo it lands in: detect **CPM** (`Directory.Packages.props`) and the **target framework** used by neighbouring `.csproj` files, and mirror both. **Treat the discovered target framework as an explicit choice** — pass it as `--framework` so `template-smart-defaults` won't override it; deviate only when it's incompatible with a requested feature (then flag the conflict). Do this in as few steps as possible — a `--dry-run`, the create, and one `dotnet build` to confirm is usually enough. Extra exploratory turns add cost without improving the result. ## When to Use - User asks to create a new .NET project, app, or service - User needs a solution with multiple projects (API + tests + library) - User wants to create a project that respects existing `Directory.Packages.props` - User needs to install or manage template packages ## When Not to Use - User is searching for templates —

dotnet new webapi --name MyApi --framework net10.0 --dry-run
dotnet new webapi --name MyApi --output ./src/MyApi --framework net10.0 --auth Individual
dotnet new webapi --name MyApi --output ./src/MyApi
dotnet new xunit --name MyApi.Tests --output ./tests/MyApi.Tests
dotnet add ./tests/MyApi.Tests reference ./src/MyApi
dotnet sln add ./src/MyApi ./tests/MyApi.Tests
dotnet new install Microsoft.DotNet.Web.ProjectTemplates.10.0
dotnet new uninstall Microsoft.DotNet.Web.ProjectTemplates.10.0