diff --git a/MyBlog.slnx b/MyBlog.slnx
index e9922981..f8de783a 100644
--- a/MyBlog.slnx
+++ b/MyBlog.slnx
@@ -8,6 +8,7 @@
   <Folder Name="/tests/">
     <Project Path="tests/AppHost.Tests/AppHost.Tests.csproj" />
     <Project Path="tests/Architecture.Tests/Architecture.Tests.csproj" />
+    <Project Path="tests/Domain.Tests/Domain.Tests.csproj" />
     <Project Path="tests/Web.Tests/Web.Tests.csproj" />
     <Project Path="tests/Web.Tests.Bunit/Web.Tests.Bunit.csproj" />
     <Project Path="tests/Web.Tests.Integration/Web.Tests.Integration.csproj" />
diff --git a/tests/Architecture.Tests/CachingLayerTests.cs b/tests/Architecture.Tests/CachingLayerTests.cs
new file mode 100644
index 00000000..ce42fb8d
--- /dev/null
+++ b/tests/Architecture.Tests/CachingLayerTests.cs
@@ -0,0 +1,45 @@
+//=======================================================
+//Copyright (c) 2026. All rights reserved.
+//File Name :     CachingLayerTests.cs
+//Company :       mpaulosky
+//Author :        Matthew Paulosky
+//Solution Name : MyBlog
+//Project Name :  Architecture.Tests
+//=======================================================
+
+using MyBlog.Web.Features.BlogPosts.List;
+
+namespace MyBlog.Architecture.Tests;
+
+public class CachingLayerTests
+{
+	private static readonly System.Reflection.Assembly WebAssembly = typeof(GetBlogPostsQuery).Assembly;
+
+	[Fact]
+	public void Features_Should_Not_Reference_IDistributedCache_Directly()
+	{
+		var result = Types.InAssembly(WebAssembly)
+				.That()
+				.ResideInNamespace("MyBlog.Web.Features")
+				.ShouldNot()
+				.HaveDependencyOnAny("Microsoft.Extensions.Caching.Distributed")
+				.GetResult();
+
+		result.IsSuccessful.Should().BeTrue(
+			"VSA handlers must delegate caching to IBlogPostCacheService, not reference IDistributedCache directly");
+	}
+
+	[Fact]
+	public void Features_Should_Not_Reference_IMemoryCache_Directly()
+	{
+		var result = Types.InAssembly(WebAssembly)
+				.That()
+				.ResideInNamespace("MyBlog.Web.Features")
+				.ShouldNot()
+				.HaveDependencyOnAny("Microsoft.Extensions.Caching.Memory")
+				.GetResult();
+
+		result.IsSuccessful.Should().BeTrue(
+			"VSA handlers must delegate caching to IBlogPostCacheService, not reference IMemoryCache directly");
+	}
+}
diff --git a/tests/Domain.Tests/Domain.Tests.csproj b/tests/Domain.Tests/Domain.Tests.csproj
new file mode 100644
index 00000000..4ef408b2
--- /dev/null
+++ b/tests/Domain.Tests/Domain.Tests.csproj
@@ -0,0 +1,28 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+	<PropertyGroup>
+		<TargetFramework>net10.0</TargetFramework>
+		<ImplicitUsings>enable</ImplicitUsings>
+		<Nullable>enable</Nullable>
+		<IsPackable>false</IsPackable>
+		<IsTestProject>true</IsTestProject>
+		<RootNamespace>MyBlog.Domain.Tests</RootNamespace>
+	</PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="coverlet.collector"/>
+		<PackageReference Include="FluentAssertions"/>
+		<PackageReference Include="Microsoft.NET.Test.Sdk" />
+		<PackageReference Include="xunit"/>
+		<PackageReference Include="xunit.runner.visualstudio"/>
+	</ItemGroup>
+
+	<ItemGroup>
+		<Using Include="Xunit"/>
+	</ItemGroup>
+
+	<ItemGroup>
+		<ProjectReference Include="..\..\src\Domain\Domain.csproj"/>
+	</ItemGroup>
+
+</Project>
diff --git a/tests/Domain.Tests/GlobalUsings.cs b/tests/Domain.Tests/GlobalUsings.cs
new file mode 100644
index 00000000..ca05c4d1
--- /dev/null
+++ b/tests/Domain.Tests/GlobalUsings.cs
@@ -0,0 +1,2 @@
+global using FluentAssertions;
+global using MyBlog.Domain.Entities;