diff --git a/VContainerAnalyzer.Test/PreserveAttributeAnalyzerTest.cs b/VContainerAnalyzer.Test/PreserveAttributeAnalyzerTest.cs
index ce0767f..4bce26e 100644
--- a/VContainerAnalyzer.Test/PreserveAttributeAnalyzerTest.cs
+++ b/VContainerAnalyzer.Test/PreserveAttributeAnalyzerTest.cs
@@ -9,6 +9,7 @@
 using Dena.CodeAnalysis.CSharp.Testing;
 using Microsoft.CodeAnalysis.Text;
 using NUnit.Framework;
+using VContainerAnalyzer.Analyzers;
 using Assert = NUnit.Framework.Assert;
 
 namespace VContainerAnalyzer.Test;
@@ -230,4 +231,42 @@ public async ValueTask AnalyzeRegisterMethod_ConstructorHasInjectAttribute_Repor
 
         Assert.That(actual.Length, Is.EqualTo(0));
     }
+
+    [Test]
+    public async ValueTask AnalyzeAddMethod_ConstructorDoesNotHaveInjectAttribute_ReportDiagnostics()
+    {
+        var source = ReadCodes("ConstructorWithoutInjectAttributeClass.cs",
+            "EmptyClassStub.cs",
+            "Interfaces.cs",
+            "AddConstructorWithoutInjectAttributeClassLifetimeScope.cs");
+
+        var analyzer = new PreserveAttributeAnalyzer();
+        var diagnostics = await DiagnosticAnalyzerRunner.Run(analyzer, source);
+
+        var actual = diagnostics
+            .Where(x => x.Id != "CS1591") // Ignore "Missing XML comment for publicly visible type or member"
+            .Where(x => x.Id != "CS8019") // Ignore "Unnecessary using directive"
+            .ToArray();
+
+        Assert.Multiple(() =>
+        {
+            Assert.That(actual.First().Id, Is.EqualTo("VContainer0001"));
+            Assert.That(actual.First().GetMessage(),
+                Is.EqualTo(
+                    "The constructor of 'ConstructorWithoutInjectAttributeClass' have no attribute that extends PreserveAttribute, such as InjectAttribute."));
+        });
+
+        var expectedPositions = new[] { new { Start = new LinePosition(15, 32), End = new LinePosition(15, 70) }, };
+
+        Assert.That(actual, Has.Length.EqualTo(expectedPositions.Length));
+
+        for (var i = 0; i < expectedPositions.Length; i++)
+        {
+            LocationAssert.HaveTheSpan(
+                expectedPositions[i].Start,
+                expectedPositions[i].End,
+                actual[i].Location
+            );
+        }
+    }
 }
diff --git a/VContainerAnalyzer.Test/TestData/AddConstructorWithoutInjectAttributeClassLifetimeScope.cs b/VContainerAnalyzer.Test/TestData/AddConstructorWithoutInjectAttributeClassLifetimeScope.cs
new file mode 100644
index 0000000..c5dd0bd
--- /dev/null
+++ b/VContainerAnalyzer.Test/TestData/AddConstructorWithoutInjectAttributeClassLifetimeScope.cs
@@ -0,0 +1,20 @@
+// Copyright (c) 2020-2024 VeyronSakai.
+// This software is released under the MIT License.
+
+using VContainer;
+using VContainer.Unity;
+
+namespace VContainerAnalyzer.Test.TestData
+{
+    public class AddConstructorWithoutInjectAttributeClassLifetimeScope
+    {
+        // ReSharper disable once UnusedMember.Global
+        public void Configure(IContainerBuilder builder)
+        {
+            builder.UseEntryPoints(Lifetime.Singleton, entryPoints =>
+            {
+                entryPoints.Add<ConstructorWithoutInjectAttributeClass>();
+            });
+        }
+    }
+}
diff --git a/VContainerAnalyzer.Test/TestData/VContainer/ContainerBuilderUnityExtensions.cs b/VContainerAnalyzer.Test/TestData/VContainer/ContainerBuilderUnityExtensions.cs
index 2813f38..b3fcebc 100644
--- a/VContainerAnalyzer.Test/TestData/VContainer/ContainerBuilderUnityExtensions.cs
+++ b/VContainerAnalyzer.Test/TestData/VContainer/ContainerBuilderUnityExtensions.cs
@@ -1,10 +1,26 @@
 // Copyright (c) 2020-2024 VeyronSakai.
 // This software is released under the MIT License.
 
-// ReSharper disable once CheckNamespace
+using System;
 
+// ReSharper disable once CheckNamespace
 namespace VContainer.Unity
 {
+    public readonly struct EntryPointsBuilder
+    {
+        private readonly IContainerBuilder _containerBuilder;
+        private readonly Lifetime _lifetime;
+
+        // ReSharper disable once ConvertToPrimaryConstructor
+        public EntryPointsBuilder(IContainerBuilder containerBuilder, Lifetime lifetime)
+        {
+            this._containerBuilder = containerBuilder;
+            this._lifetime = lifetime;
+        }
+
+        public RegistrationBuilder Add<T>() => _containerBuilder.Register<T>(_lifetime).AsImplementedInterfaces();
+    }
+
     public static class ContainerBuilderUnityExtensions
     {
         public static RegistrationBuilder RegisterEntryPoint<T>(this IContainerBuilder builder,
@@ -12,5 +28,13 @@ public static RegistrationBuilder RegisterEntryPoint<T>(this IContainerBuilder b
         {
             return new RegistrationBuilder();
         }
+
+        public static void UseEntryPoints(
+            this IContainerBuilder builder,
+            Lifetime lifetime,
+            Action<EntryPointsBuilder> configuration)
+        {
+            configuration(new EntryPointsBuilder(builder, lifetime));
+        }
     }
 }
diff --git a/VContainerAnalyzer.Test/TestData/VContainer/RegistrationBuilder.cs b/VContainerAnalyzer.Test/TestData/VContainer/RegistrationBuilder.cs
index 87dc119..78d4219 100644
--- a/VContainerAnalyzer.Test/TestData/VContainer/RegistrationBuilder.cs
+++ b/VContainerAnalyzer.Test/TestData/VContainer/RegistrationBuilder.cs
@@ -12,5 +12,10 @@ public RegistrationBuilder As<TInterface>()
         {
             return this;
         }
+
+        public virtual RegistrationBuilder AsImplementedInterfaces()
+        {
+            return this;
+        }
     }
 }
diff --git a/VContainerAnalyzer/PreserveAttributeAnalyzer.cs b/VContainerAnalyzer/Analyzers/PreserveAttributeAnalyzer.cs
similarity index 81%
rename from VContainerAnalyzer/PreserveAttributeAnalyzer.cs
rename to VContainerAnalyzer/Analyzers/PreserveAttributeAnalyzer.cs
index 2246a00..ad8621d 100644
--- a/VContainerAnalyzer/PreserveAttributeAnalyzer.cs
+++ b/VContainerAnalyzer/Analyzers/PreserveAttributeAnalyzer.cs
@@ -7,7 +7,7 @@
 using Microsoft.CodeAnalysis.Diagnostics;
 using Microsoft.CodeAnalysis.Operations;
 
-namespace VContainerAnalyzer;
+namespace VContainerAnalyzer.Analyzers;
 
 [DiagnosticAnalyzer(LanguageNames.CSharp)]
 public sealed class PreserveAttributeAnalyzer : DiagnosticAnalyzer
@@ -38,22 +38,34 @@ private static void AnalyzeAttributes(OperationAnalysisContext context)
         var invocation = (IInvocationOperation)context.Operation;
         var methodSymbol = invocation.TargetMethod;
         var namespaceSymbol = methodSymbol.ContainingNamespace;
+
         if (IsContainerBuilderUnityExtensions(namespaceSymbol, methodSymbol))
         {
             switch (invocation.TargetMethod.Name)
             {
                 case "RegisterEntryPoint":
                     AnalyzeRegisterEntryPointMethod(ref context, invocation);
-                    break;
+                    return;
             }
         }
-        else if (IsContainerBuilderExtensions(namespaceSymbol, methodSymbol))
+
+        if (IsContainerBuilderExtensions(namespaceSymbol, methodSymbol))
         {
             switch (invocation.TargetMethod.Name)
             {
                 case "Register":
                     AnalyzeRegisterMethod(ref context, invocation);
-                    break;
+                    return;
+            }
+        }
+
+        if (IsEntryPointBuilder(namespaceSymbol, methodSymbol))
+        {
+            switch (invocation.TargetMethod.Name)
+            {
+                case "Add":
+                    AnalyzeAddMethod(ref context, invocation);
+                    return;
             }
         }
     }
@@ -80,6 +92,28 @@ private static bool IsContainerBuilderUnityExtensions(INamespaceSymbol namespace
         return methodSymbol.ContainingType.Name == "ContainerBuilderUnityExtensions";
     }
 
+    private static bool IsEntryPointBuilder(INamespaceSymbol namespaceSymbol, IMethodSymbol methodSymbol)
+    {
+        if (namespaceSymbol is not { Name: "Unity" })
+        {
+            return false;
+        }
+
+        namespaceSymbol = namespaceSymbol.ContainingNamespace;
+        if (namespaceSymbol is not { Name: "VContainer" })
+        {
+            return false;
+        }
+
+        namespaceSymbol = namespaceSymbol.ContainingNamespace;
+        if (namespaceSymbol is not { Name: "" })
+        {
+            return false;
+        }
+
+        return methodSymbol.ContainingType.Name == "EntryPointsBuilder";
+    }
+
     private static bool IsContainerBuilderExtensions(INamespaceSymbol namespaceSymbol, IMethodSymbol methodSymbol)
     {
         if (namespaceSymbol is not { Name: "VContainer" })
@@ -119,6 +153,29 @@ private static void AnalyzeRegisterMethod(ref OperationAnalysisContext context,
         context.ReportDiagnostic(Diagnostic.Create(s_rule, targetLocation, concreteType.Name));
     }
 
+    private static void AnalyzeAddMethod(ref OperationAnalysisContext context, IInvocationOperation invocation)
+    {
+        var typeArgument = invocation.TargetMethod.TypeArguments.SingleOrDefault();
+        if (typeArgument is not INamedTypeSymbol concreteType)
+        {
+            return;
+        }
+
+        if (concreteType.TypeKind != TypeKind.Class)
+        {
+            return;
+        }
+
+        if (HasConstructorWithPreserveAttribute(concreteType) || !HasCustomConstructor(concreteType))
+        {
+            return;
+        }
+
+        var typeArgumentLocation = GetTypeArgumentLocation(invocation);
+        var targetLocation = typeArgumentLocation == default ? invocation.Syntax.GetLocation() : typeArgumentLocation;
+        context.ReportDiagnostic(Diagnostic.Create(s_rule, targetLocation, concreteType.Name));
+    }
+
     private static void AnalyzeRegisterInstanceMethod(ref OperationAnalysisContext context,
         IInvocationOperation invocation)
     {
diff --git a/VContainerAnalyzer/VContainerAnalyzer.csproj b/VContainerAnalyzer/VContainerAnalyzer.csproj
index 6b33a8b..db3e0ee 100644
--- a/VContainerAnalyzer/VContainerAnalyzer.csproj
+++ b/VContainerAnalyzer/VContainerAnalyzer.csproj
@@ -19,9 +19,6 @@
   <ItemGroup Condition="Exists('$(TargetPath)')">
     <Analyzer Include="$(TargetPath)"/>
   </ItemGroup>
-  <ItemGroup>
-    <Folder Include="Analyzers\" />
-  </ItemGroup>
 
   <!-- For pack -->
   <PropertyGroup>