First build out of ResultR.Valdiation companion library

.github/workflows/release-validation.yml

@@ -0,0 +1,59 @@
+name: Release ResultR.Validation
+
+on:
+  push:
+    tags:
+      - 'validation-v*'
+
+env:
+  DOTNET_VERSION: '10.0.x'
+
+permissions:
+  contents: write
+
+jobs:
+  release-validation:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: ${{ env.DOTNET_VERSION }}
+
+      - name: Restore dependencies
+        run: dotnet restore ResultR.slnx
+        working-directory: src
+
+      - name: Build
+        run: dotnet build ResultR.slnx --configuration Release --no-restore
+        working-directory: src
+
+      - name: Test
+        run: dotnet test ResultR.slnx --configuration Release --no-build --verbosity normal
+        working-directory: src
+
+      - name: Pack ResultR.Validation
+        run: |
+          VERSION=${GITHUB_REF#refs/tags/validation-v}
+          dotnet pack ResultR.Validation.csproj --configuration Release --no-build -p:PackageVersion=$VERSION -o ./nupkg
+        working-directory: src/ResultR.Validation
+
+      - name: Publish ResultR.Validation to NuGet
+        run: dotnet nuget push ./nupkg/*.nupkg --api-key ${{ secrets.NUGET_API_KEY }} --source https://api.nuget.org/v3/index.json --skip-duplicate
+        working-directory: src/ResultR.Validation
+
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: |
+            src/ResultR.Validation/nupkg/*.nupkg
+            src/ResultR.Validation/nupkg/*.snupkg
+          generate_release_notes: true
+          draft: false
+          prerelease: false
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

README.md

@@ -58,6 +58,16 @@ ResultR prioritizes:
 dotnet add package ResultR
 ```
 
+### Optional: ResultR.Validation
+
+For inline validation with a fluent API:
+
+```bash
+dotnet add package ResultR.Validation
+```
+
+**[→ Learn more about ResultR.Validation](https://github.com/AlanBarber/ResultR/wiki/ResultR.Validation)**
+
 ## 🚀 Quick Start
 
 ### 1. Define a Request
@@ -199,6 +209,44 @@ public class DeleteUserHandler : IRequestHandler<DeleteUserRequest>
 
 ## 🔧 Advanced Features
 
+### ResultR.Validation (Optional Package)
+
+Add fluent inline validation to your handlers without separate validator classes:
+
+```csharp
+dotnet add package ResultR.Validation
+```
+
+```csharp
+using ResultR.Validation;
+
+public class CreateUserHandler : IRequestHandler<CreateUserRequest, User>
+{
+    public ValueTask<Result> ValidateAsync(CreateUserRequest request)
+    {
+        return Validator.For(request)
+            .RuleFor(x => x.Email)
+                .NotEmpty("Email is required")
+                .EmailAddress("Invalid email format")
+            .RuleFor(x => x.Name)
+                .NotEmpty("Name is required")
+                .MinLength(2, "Name must be at least 2 characters")
+            .RuleFor(x => x.Age)
+                .GreaterThan(0, "Age must be positive")
+            .ToResult();
+    }
+
+    public async ValueTask<Result<User>> HandleAsync(CreateUserRequest request, CancellationToken ct)
+    {
+        var user = new User(request.Email, request.Name, request.Age);
+        await _repository.AddAsync(user, ct);
+        return Result<User>.Success(user);
+    }
+}
+```
+
+**[→ Full ResultR.Validation documentation](https://github.com/AlanBarber/ResultR/wiki/ResultR.Validation)**
+
 ### Metadata Support
 
 ```csharp

docs/wiki/Home.md

@@ -65,6 +65,8 @@ else
 
 ## Documentation
 
+### Core Documentation
+
 - [Getting Started](Getting-Started) - Installation and basic setup
 - [Requests and Handlers](Requests-and-Handlers) - Creating requests and handlers
 - [The Result Type](The-Result-Type) - Working with success and failure states
@@ -73,6 +75,10 @@ else
 - [Error Handling](Error-Handling) - Exception handling and failure patterns
 - [Best Practices](Best-Practices) - Recommended patterns and conventions
 
+### Optional Packages
+
+- [ResultR.Validation](ResultR.Validation) - Inline validation with fluent API
+
 ## Requirements
 
 - .NET 10.0 or later