diff --git a/src/CachedServiceGenerator/Dto/MethodCallObject.php b/src/CachedServiceGenerator/Dto/MethodCallObject.php
index 5fee730..aa0725e 100644
--- a/src/CachedServiceGenerator/Dto/MethodCallObject.php
+++ b/src/CachedServiceGenerator/Dto/MethodCallObject.php
@@ -4,6 +4,8 @@
 
 namespace Tbessenreither\MultiLevelCache\CachedServiceGenerator\Dto;
 
+use Tbessenreither\MultiLevelCache\CachedServiceGenerator\Service\KeyGeneratorService;
+
 class MethodCallObject
 {
     public function __construct(
@@ -41,7 +43,7 @@ public function getAdditionalCacheKey(): ?string
 
     public function getCachePrefix(): string
     {
-        return str_replace(['\\', ':', ' '], ['_', '-', ''], $this->getClass());
+        return KeyGeneratorService::namespaceToKeyString($this->getClass());
     }
 
     public function getCallable(): callable
diff --git a/src/CachedServiceGenerator/Service/InvalidatorService.php b/src/CachedServiceGenerator/Service/InvalidatorService.php
index 1054c54..678f166 100644
--- a/src/CachedServiceGenerator/Service/InvalidatorService.php
+++ b/src/CachedServiceGenerator/Service/InvalidatorService.php
@@ -19,25 +19,47 @@ public function __construct(
         $this->directRedisCacheService = $multiLevelCacheFactory->getImplementationRedisWithPrefix('mlc');
     }
 
-    public function invalidateCacheForClass(string $classString): bool
+    public function invalidateEverything(): bool
     {
-        try {
-            $generateKey = KeyGeneratorService::getKeyPatternForClass(new MethodCallObject($classString, '', []));
+        return $this->deleteByPattern('*');
+    }
 
-            $this->directRedisCacheService->deleteByPattern($generateKey);
+    public function invalidateCacheForNamespace(string $namespace): bool
+    {
+        $completedWithoutError = true;
+        $invalidateKeyPatterns = [
+            KeyGeneratorService::namespaceToKeyString($namespace, null, true) . ':*',
+            KeyGeneratorService::namespaceToKeyString($namespace, null, false) . ':*',
+        ];
+        foreach ($invalidateKeyPatterns as $pattern) {
 
-            return true;
-        } catch (Throwable $e) {
-            return false;
+            $result = $this->deleteByPattern($pattern);
+            if ($result === false) {
+                $completedWithoutError = false;
+            }
         }
+
+        return $completedWithoutError;
+    }
+
+    public function invalidateCacheForClass(string $classString): bool
+    {
+        $generateKey = KeyGeneratorService::getKeyPatternForClass(new MethodCallObject($classString, '', []));
+
+        return $this->deleteByPattern($generateKey);
     }
 
     public function invalidateCacheForMethod(string $classString, string $method): bool
     {
-        try {
-            $generateKey = KeyGeneratorService::getKeyPatternForMethod(new MethodCallObject($classString, $method, []));
+        $generateKey = KeyGeneratorService::getKeyPatternForMethod(new MethodCallObject($classString, $method, []));
 
-            $this->directRedisCacheService->deleteByPattern($generateKey);
+        return $this->deleteByPattern($generateKey);
+    }
+
+    public function deleteByPattern(string $pattern): bool
+    {
+        try {
+            $this->directRedisCacheService->deleteByPattern($pattern);
 
             return true;
         } catch (Throwable $e) {
diff --git a/src/CachedServiceGenerator/Service/KeyGeneratorService.php b/src/CachedServiceGenerator/Service/KeyGeneratorService.php
index 232cf76..657d1ab 100644
--- a/src/CachedServiceGenerator/Service/KeyGeneratorService.php
+++ b/src/CachedServiceGenerator/Service/KeyGeneratorService.php
@@ -14,6 +14,8 @@
 
 class KeyGeneratorService
 {
+    public const string CACHED_SERVICE_GENERATOR_KEY_PREFIX = 'CachedService';
+
     /**
      * @var array<string, string>
      */
@@ -28,6 +30,20 @@ public static function getKey(MethodCallObject $methodCallObject, bool $throw =
         return self::defaultKeyGenerator($methodCallObject);
     }
 
+    public static function namespaceToKeyString(string $fqcn, ?string $method = null, bool $addCsgPrefix = false): string
+    {
+        $parts = [];
+        if ($addCsgPrefix) {
+            $parts[] = self::CACHED_SERVICE_GENERATOR_KEY_PREFIX;
+        }
+        $parts[] = str_replace(['\\', ':', ' '], ['_', '-', ''], $fqcn);
+        if ($method) {
+            $parts[] = $method;
+        }
+
+        return implode(':', $parts);
+    }
+
     public static function getKeyPatternForMethod(MethodCallObject $methodCallObject): string
     {
         $generatedFullKey = self::getKey($methodCallObject);
diff --git a/src/CachedServiceGenerator/Service/MakeCachedServiceService.php b/src/CachedServiceGenerator/Service/MakeCachedServiceService.php
index 385e839..70bbd77 100644
--- a/src/CachedServiceGenerator/Service/MakeCachedServiceService.php
+++ b/src/CachedServiceGenerator/Service/MakeCachedServiceService.php
@@ -129,6 +129,7 @@ class: $interfaceClass,
         $classCode = RenderTemplateService::render('Class/CachedService', [
             'ServiceNamespace' => $namespace,
             'ServiceName' => $shortName,
+            'CacheKeyPrefix' => KeyGeneratorService::namespaceToKeyString(fqcn:$class, addCsgPrefix:true),
             'ClassDotSeparated' => $classDotSeparated,
             'ClassUnderscoreSeparated' => $classUnderscoreSeparated,
             'ClassHyphenSeparated' => $classHyphenSeparated,
diff --git a/src/CachedServiceGenerator/Service/MlcTemplates/Class/CachedServiceTemplate.txt b/src/CachedServiceGenerator/Service/MlcTemplates/Class/CachedServiceTemplate.txt
index 87afafe..da62e9f 100644
--- a/src/CachedServiceGenerator/Service/MlcTemplates/Class/CachedServiceTemplate.txt
+++ b/src/CachedServiceGenerator/Service/MlcTemplates/Class/CachedServiceTemplate.txt
@@ -26,10 +26,11 @@ use Throwable;
  *
  * Cache enabled wrapper for Service /*{ServiceName}*/.
  *
- * This Wrapper provides all public methods from the origin service and was generated using the make command
- * You can regenerate/update using php vendor/tbessenreither/multi-level-cache/bin/make --service=/*{ClassDotSeparated}*/
- * Or you can update all services with php vendor/tbessenreither/multi-level-cache/bin/update
+ * This Wrapper provides all public methods from the origin service and was generated using the make command.
+ * You can regenerate/update using php vendor/tbessenreither/multi-level-cache/bin/make --service=/*{ClassDotSeparated}*/.
+ * Or you can update all services with php vendor/tbessenreither/multi-level-cache/bin/update.
  * @codeCoverageIgnore
+ * @mixin /*{ServiceName}*/
  */
 #[MlcCachedService(
     originalServiceClass: /*{ServiceName}*/::class,
@@ -37,7 +38,7 @@ use Throwable;
 )]
 class /*{ServiceName}*/Cached implements /*{InterfacesString}*/
 {
-    public const CACHE_KEY_PREFIX = 'CachedService:/*{ClassUnderscoreSeparated}*/';
+    public const CACHE_KEY_PREFIX = '/*{CacheKeyPrefix}*/';
 
     /**
      * @var array<string, MlcCacheableMethod|null>
diff --git a/tests/CachedServiceGenerator/Dto/MethodCallObjectTest.php b/tests/CachedServiceGenerator/Dto/MethodCallObjectTest.php
index 86fc805..7fdb9e7 100644
--- a/tests/CachedServiceGenerator/Dto/MethodCallObjectTest.php
+++ b/tests/CachedServiceGenerator/Dto/MethodCallObjectTest.php
@@ -6,10 +6,13 @@
 
 use Closure;
 use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\Attributes\UsesClass;
 use PHPUnit\Framework\TestCase;
 use Tbessenreither\MultiLevelCache\CachedServiceGenerator\Dto\MethodCallObject;
+use Tbessenreither\MultiLevelCache\CachedServiceGenerator\Service\KeyGeneratorService;
 
 #[CoversClass(MethodCallObject::class)]
+#[UsesClass(KeyGeneratorService::class)]
 class MethodCallObjectTest extends TestCase
 {
     public function testSetupAndGetter(): void
diff --git a/tests/CachedServiceGenerator/Service/InvalidatorServiceTest.php b/tests/CachedServiceGenerator/Service/InvalidatorServiceTest.php
index 1fe6237..68c7f5a 100644
--- a/tests/CachedServiceGenerator/Service/InvalidatorServiceTest.php
+++ b/tests/CachedServiceGenerator/Service/InvalidatorServiceTest.php
@@ -31,6 +31,53 @@
 #[UsesClass(RedisClientFactory::class)]
 class InvalidatorServiceTest extends TestCase
 {
+    public function testInvalidateEverything(): void
+    {
+        $redisMock = $this->createMock(Redis::class);
+        $redisMock->method('isConnected')->willReturn(true);
+        $redisMock->method('scan')->willReturnOnConsecutiveCalls(
+            ['key:1', 'key:2'],
+            []
+        );
+        $redisMock
+            ->expects($this->atLeastOnce())
+            ->method('del');
+
+        $directRedisCacheService = new DirectRedisCacheService(redisClientProvider: RedisClientFactoryTest::wrapClient($redisMock));
+
+        $multiLevelCacheFactoryStub = $this->createStub(MultiLevelCacheFactory::class);
+        $multiLevelCacheFactoryStub->method('getImplementationRedisWithPrefix')
+            ->willReturn($directRedisCacheService);
+
+        $invalidatorService = new InvalidatorService($multiLevelCacheFactoryStub);
+        $result = $invalidatorService->invalidateEverything();
+        $this->assertTrue($result);
+    }
+
+    public function testInvalidateEverythingWithError(): void
+    {
+        $redisMock = $this->createMock(Redis::class);
+        $redisMock->method('isConnected')->willReturn(true);
+        $redisMock->method('scan')->willReturnOnConsecutiveCalls(
+            ['key:1', 'key:2'],
+            []
+        );
+        $redisMock
+            ->expects($this->atLeastOnce())
+            ->method('del')
+            ->willThrowException(new Exception('random error'));
+
+        $directRedisCacheService = new DirectRedisCacheService(redisClientProvider: RedisClientFactoryTest::wrapClient($redisMock));
+
+        $multiLevelCacheFactoryStub = $this->createStub(MultiLevelCacheFactory::class);
+        $multiLevelCacheFactoryStub->method('getImplementationRedisWithPrefix')
+            ->willReturn($directRedisCacheService);
+
+        $invalidatorService = new InvalidatorService($multiLevelCacheFactoryStub);
+        $result = $invalidatorService->invalidateEverything();
+        $this->assertFalse($result);
+    }
+
     public function testClassInvalidation(): void
     {
         $redisStub = $this->createStub(Redis::class);
@@ -100,4 +147,47 @@ public function testMethodInvalidationError(): void
         $result = $invalidatorService->invalidateCacheForMethod(TestServiceA::class, 'testMethod');
         $this->assertFalse($result);
     }
+
+    public function testNamespaceInvalidation(): void
+    {
+        $redisMock = $this->createMock(Redis::class);
+        $redisMock->method('isConnected')->willReturn(true);
+        $redisMock->method('scan')->willReturnOnConsecutiveCalls(
+            ['key:1', 'key:2'],
+            []
+        );
+        $redisMock->expects($this->atLeastOnce())
+            ->method('del');
+        $directRedisCacheService = new DirectRedisCacheService(redisClientProvider: RedisClientFactoryTest::wrapClient($redisMock));
+
+        $multiLevelCacheFactoryStub = $this->createStub(MultiLevelCacheFactory::class);
+        $multiLevelCacheFactoryStub->method('getImplementationRedisWithPrefix')
+            ->willReturn($directRedisCacheService);
+
+        $invalidatorService = new InvalidatorService($multiLevelCacheFactoryStub);
+        $result = $invalidatorService->invalidateCacheForNamespace(TestServiceA::class);
+        $this->assertTrue($result);
+    }
+
+    public function testNamespaceInvalidationWithError(): void
+    {
+        $redisMock = $this->createMock(Redis::class);
+        $redisMock->method('isConnected')->willReturn(true);
+        $redisMock->method('scan')->willReturnOnConsecutiveCalls(
+            ['key:1', 'key:2'],
+            []
+        );
+        $redisMock->expects($this->atLeastOnce())
+            ->method('del')
+            ->willThrowException(new Exception('random error'));
+        $directRedisCacheService = new DirectRedisCacheService(redisClientProvider: RedisClientFactoryTest::wrapClient($redisMock));
+
+        $multiLevelCacheFactoryStub = $this->createStub(MultiLevelCacheFactory::class);
+        $multiLevelCacheFactoryStub->method('getImplementationRedisWithPrefix')
+            ->willReturn($directRedisCacheService);
+
+        $invalidatorService = new InvalidatorService($multiLevelCacheFactoryStub);
+        $result = $invalidatorService->invalidateCacheForNamespace(TestServiceA::class);
+        $this->assertFalse($result);
+    }
 }
diff --git a/tests/Commands/MakeTest.php b/tests/Commands/MakeTest.php
index d460a82..c8ce622 100644
--- a/tests/Commands/MakeTest.php
+++ b/tests/Commands/MakeTest.php
@@ -6,6 +6,7 @@
 
 use PHPUnit\Framework\Attributes\CoversNothing;
 use PHPUnit\Framework\TestCase;
+use Tbessenreither\MultiLevelCache\CachedServiceGenerator\Service\KeyGeneratorService;
 
 #[CoversNothing]
 class MakeTest extends TestCase
@@ -69,6 +70,7 @@ public function testMake(): void
         $this->assertStringContainsString('public function exampleMethod(): void', $interfaceFileContent);
         $this->assertStringContainsString('public function exampleMethodWithArguments(array $thing, bool $bool, int $int, string $string): void', $interfaceFileContent);
 
+        $this->assertStringContainsString("CACHE_KEY_PREFIX = '" . KeyGeneratorService::CACHED_SERVICE_GENERATOR_KEY_PREFIX . ":", $cachedFileContent);
     }
 
     public function testMakeWithInterfaces(): void