Dotnet Project Init

---
name: dotnet-project-init
description: Discovers .NET solution context — projects, frameworks, test runners, EF contexts, architecture style, and package management.
---

# .NET Project Initialization Skill

This skill discovers everything about a .NET solution needed for DotnetPilot to operate effectively.

## Discovery Protocol

### 1. Solution File
- Search for `*.slnx` (modern) or `*.sln` (legacy) in current directory
- If multiple solutions: ask user which one to use
- Parse project references from solution file

### 2. Per-Project Analysis

For each project in the solution:

```bash
dotnet list <project.csproj> reference    # project references
dotnet list <project.csproj> package      # NuGet packages
```

Parse `.csproj` for:
- `<TargetFramework>` → net8.0, net9.0, net10.0, etc.
- `<OutputType>` → Exe, Library
- `<Sdk>` → Microsoft.NET.Sdk.Web (web), Microsoft.NET.Sdk (classlib)
- `<IsPackable>` → library intended for NuGet distribution
- `<RootNamespace>` → namespace convention

### 3. Framework Detection

| Indicator | Detection |
|-----------|----------|
| **Test runner** | xunit → `xunit` package; NUnit → `NUnit` package; MSTest → `MSTest.TestAdapter` |
| **Mocking** | `Moq`, `NSubstitute`, `FakeItEasy` in test project packages |
| **Assertions** | `FluentAssertions`, `Shouldly` in test project packages |
| **ORM** | `Microsoft.EntityFrameworkCore` → EF Core; `Dapper` → Dapper |
| **Validation** | `FluentValidation` or DataAnnotations (check for `[Required]` attributes) |
| **CQRS** | `MediatR` package presence |
| **Mapping** | `AutoMapper` or `Mapster` package presence |
| **API style** | `[ApiController]` attribute → controllers; `MapGet/MapPost` → minimal API |

### 4. Architecture Style Detection

Analyze project reference graph:

**Clean Architecture:**
- Domain has 0 project references
- Application references only Domain
- Infrastructure references Domain + Application
- Api references Application + Infrastructure

**Vertical Slices:**
- Feature folders within a single project
- No strict layer separation

**Flat:**
- Single project or 2 projects (app + tests)

### 5. EF Core Context Discovery

Search for classes inheriting `DbContext`:
```csharp
class *DbContext : DbContext
class *Context : DbContext
```

For each context, identify:
- Project location
- Database provider (from `Use*` call or package: `Npgsql`, `SqlServer`, `Sqlite`)
- Migrations assembly location