diff --git a/cpp/Platform.Exceptions.Tests/ContractTests.cpp b/cpp/Platform.Exceptions.Tests/ContractTests.cpp
new file mode 100644
index 0000000..991fd66
--- /dev/null
+++ b/cpp/Platform.Exceptions.Tests/ContractTests.cpp
@@ -0,0 +1,7 @@
+namespace Platform::Exceptions::Tests
+{
+    TEST(ContractTests, ArgumentNotNullContractTest)
+    {
+        EXPECT_THROW(Contract::Always::ArgumentNotNull(nullptr, "object"), std::invalid_argument);
+    };
+}
diff --git a/cpp/Platform.Exceptions.Tests/EnsuranceTests.cpp b/cpp/Platform.Exceptions.Tests/EnsuranceTests.cpp
deleted file mode 100644
index c9c9df0..0000000
--- a/cpp/Platform.Exceptions.Tests/EnsuranceTests.cpp
+++ /dev/null
@@ -1,7 +0,0 @@
-namespace Platform::Exceptions::Tests
-{
-    TEST(EnsuranceTests, ArgumentNotNullEnsuranceTest)
-    {
-        EXPECT_THROW(Ensure::Always::ArgumentNotNull(nullptr, "object"), std::invalid_argument);
-    };
-}
diff --git a/cpp/Platform.Exceptions.Tests/Ignore/EnsureExtensions.cpp b/cpp/Platform.Exceptions.Tests/Ignore/ContractExtensions.cpp
similarity index 100%
rename from cpp/Platform.Exceptions.Tests/Ignore/EnsureExtensions.cpp
rename to cpp/Platform.Exceptions.Tests/Ignore/ContractExtensions.cpp
diff --git a/cpp/Platform.Exceptions.Tests/Ignore/IgnoredEnsuranceTests.cpp b/cpp/Platform.Exceptions.Tests/Ignore/IgnoredContractTests.cpp
similarity index 71%
rename from cpp/Platform.Exceptions.Tests/Ignore/IgnoredEnsuranceTests.cpp
rename to cpp/Platform.Exceptions.Tests/Ignore/IgnoredContractTests.cpp
index e09517a..fe898e1 100644
--- a/cpp/Platform.Exceptions.Tests/Ignore/IgnoredEnsuranceTests.cpp
+++ b/cpp/Platform.Exceptions.Tests/Ignore/IgnoredContractTests.cpp
@@ -1,6 +1,6 @@
 namespace Platform::Exceptions::Tests::Ignore
 {
-    TEST(IgnoredEnsuranceTests, EnsuranceIgnoredTest)
+    TEST(IgnoredContractTests, ContractIgnoredTest)
     {
         EXPECT_NO_THROW(Always::ArgumentNotNull(nullptr, "object"));
     };
diff --git a/cpp/Platform.Exceptions/Ensure.h b/cpp/Platform.Exceptions/Contract.h
similarity index 100%
rename from cpp/Platform.Exceptions/Ensure.h
rename to cpp/Platform.Exceptions/Contract.h
diff --git a/cpp/Platform.Exceptions/EnsureExtensions.h b/cpp/Platform.Exceptions/ContractExtensions.h
similarity index 96%
rename from cpp/Platform.Exceptions/EnsureExtensions.h
rename to cpp/Platform.Exceptions/ContractExtensions.h
index 1cb8287..08bea34 100644
--- a/cpp/Platform.Exceptions/EnsureExtensions.h
+++ b/cpp/Platform.Exceptions/ContractExtensions.h
@@ -1,4 +1,4 @@
-namespace Platform::Exceptions::Ensure::Always
+namespace Platform::Exceptions::Contract::Always
 {
     void ArgumentNotNull(auto argument, const std::string& argumentName, const std::string& message)
         requires std::is_pointer_v<decltype(argument)> || std::is_null_pointer_v<decltype(argument)>
@@ -47,7 +47,7 @@
     }
 }
 
-namespace Platform::Exceptions::Ensure::OnDebug
+namespace Platform::Exceptions::Contract::OnDebug
 {
 #ifdef NDEBUG
     #define NDEBUG_CONSTEVAL consteval
diff --git a/cpp/Platform.Exceptions/ExtensionRoots/EnsureAlwaysExtensionRoot.h b/cpp/Platform.Exceptions/ExtensionRoots/ContractAlwaysExtensionRoot.h
similarity index 100%
rename from cpp/Platform.Exceptions/ExtensionRoots/EnsureAlwaysExtensionRoot.h
rename to cpp/Platform.Exceptions/ExtensionRoots/ContractAlwaysExtensionRoot.h
diff --git a/cpp/Platform.Exceptions/ExtensionRoots/EnsureOnDebugExtensionRoot.h b/cpp/Platform.Exceptions/ExtensionRoots/ContractOnDebugExtensionRoot.h
similarity index 100%
rename from cpp/Platform.Exceptions/ExtensionRoots/EnsureOnDebugExtensionRoot.h
rename to cpp/Platform.Exceptions/ExtensionRoots/ContractOnDebugExtensionRoot.h
diff --git a/csharp/Platform.Exceptions.Tests/EnsuranceTests.cs b/csharp/Platform.Exceptions.Tests/ContractTests.cs
similarity index 54%
rename from csharp/Platform.Exceptions.Tests/EnsuranceTests.cs
rename to csharp/Platform.Exceptions.Tests/ContractTests.cs
index 2bb4881..8b1e213 100644
--- a/csharp/Platform.Exceptions.Tests/EnsuranceTests.cs
+++ b/csharp/Platform.Exceptions.Tests/ContractTests.cs
@@ -3,13 +3,13 @@
 
 namespace Platform.Exceptions.Tests
 {
-    public static class EnsuranceTests
+    public static class ContractTests
     {
         [Fact]
-        public static void ArgumentNotNullEnsuranceTest()
+        public static void ArgumentNotNullContractTest()
         {
             // Should throw an exception (even if in neighbour "Ignore" namespace it was overridden, but here this namespace is not used)
-            Assert.Throws<ArgumentNullException>(() => Ensure.Always.ArgumentNotNull<object>(null, "object"));
+            Assert.Throws<ArgumentNullException>(() => Contract.Always.ArgumentNotNull<object>(null, "object"));
         }
     }
 }
diff --git a/csharp/Platform.Exceptions.Tests/Ignore/EnsureExtensions.cs b/csharp/Platform.Exceptions.Tests/Ignore/ContractExtensions.cs
similarity index 51%
rename from csharp/Platform.Exceptions.Tests/Ignore/EnsureExtensions.cs
rename to csharp/Platform.Exceptions.Tests/Ignore/ContractExtensions.cs
index 676a1c2..4048004 100644
--- a/csharp/Platform.Exceptions.Tests/Ignore/EnsureExtensions.cs
+++ b/csharp/Platform.Exceptions.Tests/Ignore/ContractExtensions.cs
@@ -3,13 +3,13 @@
 
 namespace Platform.Exceptions.Tests.Ignore
 {
-    public static class EnsureExtensions
+    public static class ContractExtensions
     {
         [Conditional("DEBUG")]
-        public static void ArgumentNotNull<TArgument>(this EnsureAlwaysExtensionRoot root, TArgument argument, string argumentName)
+        public static void ArgumentNotNull<TArgument>(this ContractAlwaysExtensionRoot root, TArgument argument, string argumentName)
             where TArgument : class
         {
-            // Override logic to do nothing (this should be used to reduce the overhead of the Ensure checks, when it is critical to performance)
+            // Override logic to do nothing (this should be used to reduce the overhead of the Contract checks, when it is critical to performance)
         }
     }
 }
diff --git a/csharp/Platform.Exceptions.Tests/Ignore/IgnoredEnsuranceTests.cs b/csharp/Platform.Exceptions.Tests/Ignore/IgnoredContractTests.cs
similarity index 62%
rename from csharp/Platform.Exceptions.Tests/Ignore/IgnoredEnsuranceTests.cs
rename to csharp/Platform.Exceptions.Tests/Ignore/IgnoredContractTests.cs
index ed12efa..62acc62 100644
--- a/csharp/Platform.Exceptions.Tests/Ignore/IgnoredEnsuranceTests.cs
+++ b/csharp/Platform.Exceptions.Tests/Ignore/IgnoredContractTests.cs
@@ -2,15 +2,15 @@
 
 namespace Platform.Exceptions.Tests.Ignore
 {
-    public static class IgnoredEnsuranceTests
+    public static class IgnoredContractTests
     {
         [Fact]
-        public static void EnsuranceIgnoredTest()
+        public static void ContractIgnoredTest()
         {
-            // Should not throw an exception (because logic is overriden in EnsureAlwaysExtensions that is located within the same namespace)
+            // Should not throw an exception (because logic is overriden in ContractAlwaysExtensions that is located within the same namespace)
             // And even should be optimized out at RELEASE (because method is now marked conditional DEBUG)
             // This can be useful in performance critical situations there even an check for exception is hurting performance enough
-            Ensure.Always.ArgumentNotNull<object>(null, "object");
+            Contract.Always.ArgumentNotNull<object>(null, "object");
         }
     }
 }
diff --git a/csharp/Platform.Exceptions/Ensure.cs b/csharp/Platform.Exceptions/Contract.cs
similarity index 87%
rename from csharp/Platform.Exceptions/Ensure.cs
rename to csharp/Platform.Exceptions/Contract.cs
index 295e1fe..6969a46 100644
--- a/csharp/Platform.Exceptions/Ensure.cs
+++ b/csharp/Platform.Exceptions/Contract.cs
@@ -6,18 +6,18 @@ namespace Platform.Exceptions
     /// <para>Contains two extensible classes instances that can be supplemented with static helper methods by using the extension mechanism. These methods ensure the contract compliance.</para>
     /// <para>Содержит два экземпляра расширяемых класса, которые можно дополнять статическими вспомогательными методами путём использования механизма расширений. Эти методы занимаются гарантированием соответствия контракту.</para>
     /// </summary>
-    public static class Ensure
+    public static class Contract
     {
         /// <summary>
         /// <para>Gets an instance of the extension root class that contains helper methods to guarantee compliance with the contract.</para>
         /// <para>Возвращает экземпляр класса корня-расширения, который содержит вспомогательные методы для гарантирования соответствия контракту.</para>
         /// </summary>
-        public static readonly EnsureAlwaysExtensionRoot Always = new EnsureAlwaysExtensionRoot();
+        public static readonly ContractAlwaysExtensionRoot Always = new ContractAlwaysExtensionRoot();
 
         /// <summary>
         /// <para>Gets an instance of the extension root class that contains helper methods to guarantee compliance with the contract, but are executed only during debugging.</para>
         /// <para>Возвращает экземпляр класса корня-расширения, который содержит вспомогательные методы для гарантирования соответствия контракту, но выполняются только во время отладки.</para>
         /// </summary>
-        public static readonly EnsureOnDebugExtensionRoot OnDebug = new EnsureOnDebugExtensionRoot();
+        public static readonly ContractOnDebugExtensionRoot OnDebug = new ContractOnDebugExtensionRoot();
     }
 }
diff --git a/csharp/Platform.Exceptions/EnsureExtensions.cs b/csharp/Platform.Exceptions/ContractExtensions.cs
similarity index 85%
rename from csharp/Platform.Exceptions/EnsureExtensions.cs
rename to csharp/Platform.Exceptions/ContractExtensions.cs
index 83501a6..46984ba 100644
--- a/csharp/Platform.Exceptions/EnsureExtensions.cs
+++ b/csharp/Platform.Exceptions/ContractExtensions.cs
@@ -8,10 +8,10 @@
 namespace Platform.Exceptions
 {
     /// <summary>
-    /// <para>Provides a set of extension methods for <see cref="EnsureAlwaysExtensionRoot"/> and <see cref="EnsureOnDebugExtensionRoot"/> objects.</para>
-    /// <para>Предоставляет набор методов расширения для объектов <see cref="EnsureAlwaysExtensionRoot"/> и <see cref="EnsureOnDebugExtensionRoot"/>.</para>
+    /// <para>Provides a set of extension methods for <see cref="ContractAlwaysExtensionRoot"/> and <see cref="ContractOnDebugExtensionRoot"/> objects.</para>
+    /// <para>Предоставляет набор методов расширения для объектов <see cref="ContractAlwaysExtensionRoot"/> и <see cref="ContractOnDebugExtensionRoot"/>.</para>
     /// </summary>
-    public static class EnsureExtensions
+    public static class ContractExtensions
     {
         #region Always
 
@@ -25,7 +25,7 @@ public static class EnsureExtensions
         /// <param name="argumentName"><para>The argument's name.</para><para>Имя аргумента.</para></param>
         /// <param name="message"><para>The message of the thrown exception.</para><para>Сообщение выбрасываемого исключения.</para></param>
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public static void ArgumentNotNull<TArgument>(this EnsureAlwaysExtensionRoot root, TArgument argument, string argumentName, string message)
+        public static void ArgumentNotNull<TArgument>(this ContractAlwaysExtensionRoot root, TArgument argument, string argumentName, string message)
             where TArgument : class
         {
             if (argument == null)
@@ -43,7 +43,7 @@ public static void ArgumentNotNull<TArgument>(this EnsureAlwaysExtensionRoot roo
         /// <param name="argument"><para>The argument.</para><para>Аргумент.</para></param>
         /// <param name="argumentName"><para>The argument's name.</para><para>Имя аргумента.</para></param>
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public static void ArgumentNotNull<TArgument>(this EnsureAlwaysExtensionRoot root, TArgument argument, string argumentName) where TArgument : class => ArgumentNotNull(root, argument, argumentName, $"Argument {argumentName} is null.");
+        public static void ArgumentNotNull<TArgument>(this ContractAlwaysExtensionRoot root, TArgument argument, string argumentName) where TArgument : class => ArgumentNotNull(root, argument, argumentName, $"Argument {argumentName} is null.");
 
         /// <summary>
         /// <para>Ensures that argument is not null. This check is performed regardless of the build configuration.</para>
@@ -53,7 +53,7 @@ public static void ArgumentNotNull<TArgument>(this EnsureAlwaysExtensionRoot roo
         /// <param name="root"><para>The extension root to which this method is bound.</para><para>Корень-расширения, к которому привязан этот метод.</para></param>
         /// <param name="argument"><para>The argument.</para><para>Аргумент.</para></param>
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public static void ArgumentNotNull<TArgument>(this EnsureAlwaysExtensionRoot root, TArgument argument) where TArgument : class => ArgumentNotNull(root, argument, null);
+        public static void ArgumentNotNull<TArgument>(this ContractAlwaysExtensionRoot root, TArgument argument) where TArgument : class => ArgumentNotNull(root, argument, null);
 
         /// <summary>
         /// <para>Ensures that the argument meets the criteria. This check is performed regardless of the build configuration.</para>
@@ -66,7 +66,7 @@ public static void ArgumentNotNull<TArgument>(this EnsureAlwaysExtensionRoot roo
         /// <param name="argumentName"><para>The argument's name.</para><para>Имя аргумента.</para></param>
         /// <param name="message"><para>The message of the thrown exception.</para><para>Сообщение выбрасываемого исключения.</para></param>
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public static void ArgumentMeetsCriteria<TArgument>(this EnsureAlwaysExtensionRoot root, TArgument argument, Predicate<TArgument> predicate, string argumentName, string message)
+        public static void ArgumentMeetsCriteria<TArgument>(this ContractAlwaysExtensionRoot root, TArgument argument, Predicate<TArgument> predicate, string argumentName, string message)
         {
             if (!predicate(argument))
             {
@@ -84,7 +84,7 @@ public static void ArgumentMeetsCriteria<TArgument>(this EnsureAlwaysExtensionRo
         /// <param name="predicate"><para>A predicate that determines whether the argument meets a criterion.</para><para>Предикат определяющий, соответствует ли аргумент критерию.</para></param>
         /// <param name="argumentName"><para>The argument's name.</para><para>Имя аргумента.</para></param>
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public static void ArgumentMeetsCriteria<TArgument>(this EnsureAlwaysExtensionRoot root, TArgument argument, Predicate<TArgument> predicate, string argumentName) => ArgumentMeetsCriteria(root, argument, predicate, argumentName, $"Argument {argumentName} does not meet the criteria.");
+        public static void ArgumentMeetsCriteria<TArgument>(this ContractAlwaysExtensionRoot root, TArgument argument, Predicate<TArgument> predicate, string argumentName) => ArgumentMeetsCriteria(root, argument, predicate, argumentName, $"Argument {argumentName} does not meet the criteria.");
 
         /// <summary>
         /// <para>Ensures that the argument meets the criteria. This check is performed regardless of the build configuration.</para>
@@ -95,7 +95,7 @@ public static void ArgumentMeetsCriteria<TArgument>(this EnsureAlwaysExtensionRo
         /// <param name="argument"><para>The argument.</para><para>Аргумент.</para></param>
         /// <param name="predicate"><para>A predicate that determines whether the argument meets a criterion.</para><para>Предикат определяющий, соответствует ли аргумент критерию.</para></param>
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public static void ArgumentMeetsCriteria<TArgument>(this EnsureAlwaysExtensionRoot root, TArgument argument, Predicate<TArgument> predicate) => ArgumentMeetsCriteria(root, argument, predicate, null);
+        public static void ArgumentMeetsCriteria<TArgument>(this ContractAlwaysExtensionRoot root, TArgument argument, Predicate<TArgument> predicate) => ArgumentMeetsCriteria(root, argument, predicate, null);
 
         #endregion
 
@@ -111,7 +111,7 @@ public static void ArgumentMeetsCriteria<TArgument>(this EnsureAlwaysExtensionRo
         /// <param name="argumentName"><para>The argument's name.</para><para>Имя аргумента.</para></param>
         /// <param name="message"><para>The message of the thrown exception.</para><para>Сообщение выбрасываемого исключения.</para></param>
         [Conditional("DEBUG")]
-        public static void ArgumentNotNull<TArgument>(this EnsureOnDebugExtensionRoot root, TArgument argument, string argumentName, string message) where TArgument : class => Ensure.Always.ArgumentNotNull(argument, argumentName, message);
+        public static void ArgumentNotNull<TArgument>(this ContractOnDebugExtensionRoot root, TArgument argument, string argumentName, string message) where TArgument : class => Contract.Always.ArgumentNotNull(argument, argumentName, message);
 
         /// <summary>
         /// <para>Ensures that argument is not null. This check is performed only for DEBUG build configuration.</para>
@@ -122,7 +122,7 @@ public static void ArgumentMeetsCriteria<TArgument>(this EnsureAlwaysExtensionRo
         /// <param name="argument"><para>The argument.</para><para>Аргумент.</para></param>
         /// <param name="argumentName"><para>The argument's name.</para><para>Имя аргумента.</para></param>
         [Conditional("DEBUG")]
-        public static void ArgumentNotNull<TArgument>(this EnsureOnDebugExtensionRoot root, TArgument argument, string argumentName) where TArgument : class => Ensure.Always.ArgumentNotNull(argument, argumentName);
+        public static void ArgumentNotNull<TArgument>(this ContractOnDebugExtensionRoot root, TArgument argument, string argumentName) where TArgument : class => Contract.Always.ArgumentNotNull(argument, argumentName);
 
         /// <summary>
         /// <para>Ensures that argument is not null. This check is performed only for DEBUG build configuration.</para>
@@ -132,7 +132,7 @@ public static void ArgumentMeetsCriteria<TArgument>(this EnsureAlwaysExtensionRo
         /// <param name="root"><para>The extension root to which this method is bound.</para><para>Корень-расширения, к которому привязан этот метод.</para></param>
         /// <param name="argument"><para>The argument.</para><para>Аргумент.</para></param>
         [Conditional("DEBUG")]
-        public static void ArgumentNotNull<TArgument>(this EnsureOnDebugExtensionRoot root, TArgument argument) where TArgument : class => Ensure.Always.ArgumentNotNull(argument);
+        public static void ArgumentNotNull<TArgument>(this ContractOnDebugExtensionRoot root, TArgument argument) where TArgument : class => Contract.Always.ArgumentNotNull(argument);
 
         /// <summary>
         /// <para>Ensures that the argument meets the criteria. This check is performed only for DEBUG build configuration.</para>
@@ -145,7 +145,7 @@ public static void ArgumentMeetsCriteria<TArgument>(this EnsureAlwaysExtensionRo
         /// <param name="argumentName"><para>The argument's name.</para><para>Имя аргумента.</para></param>
         /// <param name="message"><para>The message of the thrown exception.</para><para>Сообщение выбрасываемого исключения.</para></param>
         [Conditional("DEBUG")]
-        public static void ArgumentMeetsCriteria<TArgument>(this EnsureOnDebugExtensionRoot root, TArgument argument, Predicate<TArgument> predicate, string argumentName, string message) => Ensure.Always.ArgumentMeetsCriteria(argument, predicate, argumentName, message);
+        public static void ArgumentMeetsCriteria<TArgument>(this ContractOnDebugExtensionRoot root, TArgument argument, Predicate<TArgument> predicate, string argumentName, string message) => Contract.Always.ArgumentMeetsCriteria(argument, predicate, argumentName, message);
 
         /// <summary>
         /// <para>Ensures that the argument meets the criteria. This check is performed only for DEBUG build configuration.</para>
@@ -157,7 +157,7 @@ public static void ArgumentMeetsCriteria<TArgument>(this EnsureAlwaysExtensionRo
         /// <param name="predicate"><para>A predicate that determines whether the argument meets a criterion.</para><para>Предикат определяющий, соответствует ли аргумент критерию.</para></param>
         /// <param name="argumentName"><para>The argument's name.</para><para>Имя аргумента.</para></param>
         [Conditional("DEBUG")]
-        public static void ArgumentMeetsCriteria<TArgument>(this EnsureOnDebugExtensionRoot root, TArgument argument, Predicate<TArgument> predicate, string argumentName) => Ensure.Always.ArgumentMeetsCriteria(argument, predicate, argumentName);
+        public static void ArgumentMeetsCriteria<TArgument>(this ContractOnDebugExtensionRoot root, TArgument argument, Predicate<TArgument> predicate, string argumentName) => Contract.Always.ArgumentMeetsCriteria(argument, predicate, argumentName);
 
         /// <summary>
         /// <para>Ensures that the argument meets the criteria. This check is performed only for DEBUG build configuration.</para>
@@ -168,7 +168,7 @@ public static void ArgumentMeetsCriteria<TArgument>(this EnsureAlwaysExtensionRo
         /// <param name="argument"><para>The argument.</para><para>Аргумент.</para></param>
         /// <param name="predicate"><para>A predicate that determines whether the argument meets a criterion.</para><para>Предикат определяющий, соответствует ли аргумент критерию.</para></param>
         [Conditional("DEBUG")]
-        public static void ArgumentMeetsCriteria<TArgument>(this EnsureOnDebugExtensionRoot root, TArgument argument, Predicate<TArgument> predicate) => Ensure.Always.ArgumentMeetsCriteria(argument, predicate);
+        public static void ArgumentMeetsCriteria<TArgument>(this ContractOnDebugExtensionRoot root, TArgument argument, Predicate<TArgument> predicate) => Contract.Always.ArgumentMeetsCriteria(argument, predicate);
 
         #endregion
     }
diff --git a/csharp/Platform.Exceptions/ExtensionRoots/ContractAlwaysExtensionRoot.cs b/csharp/Platform.Exceptions/ExtensionRoots/ContractAlwaysExtensionRoot.cs
new file mode 100644
index 0000000..ad342e9
--- /dev/null
+++ b/csharp/Platform.Exceptions/ExtensionRoots/ContractAlwaysExtensionRoot.cs
@@ -0,0 +1,10 @@
+namespace Platform.Exceptions.ExtensionRoots
+{
+    /// <summary>
+    /// <para>Represents the extension root class for Contract.Always.</para>
+    /// <para>Представляет класс корень-расширения для Contract.Always.</para>
+    /// </summary>
+    public class ContractAlwaysExtensionRoot
+    {
+    }
+}
diff --git a/csharp/Platform.Exceptions/ExtensionRoots/ContractOnDebugExtensionRoot.cs b/csharp/Platform.Exceptions/ExtensionRoots/ContractOnDebugExtensionRoot.cs
new file mode 100644
index 0000000..1e5a979
--- /dev/null
+++ b/csharp/Platform.Exceptions/ExtensionRoots/ContractOnDebugExtensionRoot.cs
@@ -0,0 +1,10 @@
+namespace Platform.Exceptions.ExtensionRoots
+{
+    /// <summary>
+    /// <para>Represents the extension root class for Contract.OnDebug.</para>
+    /// <para>Представляет класс корень-расширения для Contract.OnDebug.</para>
+    /// </summary>
+    public class ContractOnDebugExtensionRoot
+    {
+    }
+}
diff --git a/csharp/Platform.Exceptions/ExtensionRoots/EnsureAlwaysExtensionRoot.cs b/csharp/Platform.Exceptions/ExtensionRoots/EnsureAlwaysExtensionRoot.cs
deleted file mode 100644
index fa2ddcd..0000000
--- a/csharp/Platform.Exceptions/ExtensionRoots/EnsureAlwaysExtensionRoot.cs
+++ /dev/null
@@ -1,10 +0,0 @@
-namespace Platform.Exceptions.ExtensionRoots
-{
-    /// <summary>
-    /// <para>Represents the extension root class for Ensure.Always.</para>
-    /// <para>Представляет класс корень-расширения для Ensure.Always.</para>
-    /// </summary>
-    public class EnsureAlwaysExtensionRoot
-    {
-    }
-}
diff --git a/csharp/Platform.Exceptions/ExtensionRoots/EnsureOnDebugExtensionRoot.cs b/csharp/Platform.Exceptions/ExtensionRoots/EnsureOnDebugExtensionRoot.cs
deleted file mode 100644
index 73dabae..0000000
--- a/csharp/Platform.Exceptions/ExtensionRoots/EnsureOnDebugExtensionRoot.cs
+++ /dev/null
@@ -1,10 +0,0 @@
-namespace Platform.Exceptions.ExtensionRoots
-{
-    /// <summary>
-    /// <para>Represents the extension root class for Ensure.OnDebug.</para>
-    /// <para>Представляет класс корень-расширения для Ensure.OnDebug.</para>
-    /// </summary>
-    public class EnsureOnDebugExtensionRoot
-    {
-    }
-}