diff --git a/src/Compiler/ServiceInvocationGenerator.php b/src/Compiler/ServiceInvocationGenerator.php
index ac05e83..3f82ec1 100644
--- a/src/Compiler/ServiceInvocationGenerator.php
+++ b/src/Compiler/ServiceInvocationGenerator.php
@@ -5,8 +5,12 @@
 namespace Maduser\Argon\Container\Compiler;
 
 use Maduser\Argon\Container\ArgonContainer;
+use Maduser\Argon\Container\ServiceDescriptor;
 use Maduser\Argon\Container\Support\StringHelper;
 use Nette\PhpGenerator\ClassType;
+use ReflectionException;
+use ReflectionMethod;
+use ReflectionNamedType;
 
 final class ServiceInvocationGenerator
 {
@@ -33,12 +37,21 @@ public function generate(ClassType $class): void
                     }
                 }
 
-                $mergedArgsLine = 'array_merge([' . implode(", ", $compiledArgs) . '], $args)';
-                $body = <<<PHP
-                    {$controllerFetch}
-                    \$mergedArgs = {$mergedArgsLine};
-                    return \$controller->{$method}(...\$mergedArgs);
-                PHP;
+                $casts = $this->buildPrimitiveCastLines($descriptor, $method);
+                $indent = str_repeat(' ', 20);
+
+                $lines = [
+                    $indent . $controllerFetch,
+                    $indent . '$mergedArgs = ' . 'array_merge([' . implode(", ", $compiledArgs) . '], $args);',
+                ];
+
+                foreach ($casts as $castLine) {
+                    $lines[] = $indent . $castLine;
+                }
+
+                $lines[] = $indent . "return \$controller->{$method}(...\$mergedArgs);";
+
+                $body = implode("\n", $lines);
 
                 $class->addMethod($compiledMethodName)
                     ->setPublic()
@@ -56,4 +69,49 @@ private function buildMethodInvokerName(string $serviceId, string $method): stri
 
         return 'invoke_' . $sanitizedService . '__' . $sanitizedMethod;
     }
+
+    /**
+     * @return list<string>
+     */
+    private function buildPrimitiveCastLines(ServiceDescriptor $descriptor, string $method): array
+    {
+        $concrete = $descriptor->getConcrete();
+
+        if (!is_string($concrete) || !class_exists($concrete)) {
+            return [];
+        }
+
+        try {
+            $reflection = new ReflectionMethod($concrete, $method);
+        } catch (ReflectionException) {
+            return [];
+        }
+
+        $casts = [];
+
+        foreach ($reflection->getParameters() as $parameter) {
+            $type = $parameter->getType();
+
+            if (!$type instanceof ReflectionNamedType || !$type->isBuiltin()) {
+                continue;
+            }
+
+            $name = $parameter->getName();
+            $condition = "array_key_exists('{$name}', \$mergedArgs) && \$mergedArgs['{$name}'] !== null";
+
+            switch ($type->getName()) {
+                case 'int':
+                    $casts[] = "if ({$condition}) { \$mergedArgs['{$name}'] = (int) \$mergedArgs['{$name}']; }";
+                    break;
+                case 'float':
+                case 'double':
+                    $casts[] = "if ({$condition}) { \$mergedArgs['{$name}'] = (float) \$mergedArgs['{$name}']; }";
+                    break;
+                default:
+                    break;
+            }
+        }
+
+        return $casts;
+    }
 }
diff --git a/tests/unit/Container/Compiler/ServiceInvocationGeneratorTest.php b/tests/unit/Container/Compiler/ServiceInvocationGeneratorTest.php
new file mode 100644
index 0000000..ae159d5
--- /dev/null
+++ b/tests/unit/Container/Compiler/ServiceInvocationGeneratorTest.php
@@ -0,0 +1,92 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Unit\Container\Compiler;
+
+use Maduser\Argon\Container\ArgonContainer;
+use Maduser\Argon\Container\Compiler\ServiceInvocationGenerator;
+use Maduser\Argon\Container\Support\StringHelper;
+use Nette\PhpGenerator\ClassType;
+use PHPUnit\Framework\TestCase;
+use Tests\Unit\Container\Compiler\Stubs\ServiceDependency;
+use Tests\Unit\Container\Compiler\Stubs\ServiceWithTypedMethods;
+
+final class ServiceInvocationGeneratorTest extends TestCase
+{
+    public function testGenerateCreatesInvokerWithCastsAndServiceReferences(): void
+    {
+        $container = new ArgonContainer();
+        $container->set(ServiceWithTypedMethods::class)
+            ->defineInvocation('handle', [
+                'id' => '42',
+                'ratio' => '3.5',
+                'dependency' => '@dependency.service',
+                'note' => 'test',
+            ]);
+        $container->set('dependency.service', static fn() => new ServiceDependency());
+
+        $generator = new ServiceInvocationGenerator($container);
+        $class = new ClassType('CompiledContainer');
+
+        $generator->generate($class);
+
+        $methodName = 'invoke_'
+            . StringHelper::sanitizeIdentifier(ServiceWithTypedMethods::class)
+            . '__handle';
+
+        self::assertTrue($class->hasMethod($methodName));
+        $method = $class->getMethod($methodName);
+        self::assertSame('mixed', $method->getReturnType());
+
+        $parameters = $method->getParameters();
+        self::assertArrayHasKey('args', $parameters);
+        $argsParameter = $parameters['args'];
+        self::assertSame('array', $argsParameter->getType());
+        self::assertTrue($argsParameter->hasDefaultValue());
+        self::assertSame([], $argsParameter->getDefaultValue());
+
+        $body = $method->getBody();
+        $escapedServiceClass = str_replace('\\', '\\\\', ServiceWithTypedMethods::class);
+        self::assertStringContainsString("\$controller = \$this->get('{$escapedServiceClass}');", $body);
+        self::assertStringContainsString("\$this->get('dependency.service')", $body);
+        self::assertStringContainsString("(int) \$mergedArgs['id']", $body);
+        self::assertStringContainsString("(float) \$mergedArgs['ratio']", $body);
+    }
+
+    public function testGenerateSkipsPrimitiveCastsForNonClassAndMissingMethod(): void
+    {
+        $container = new ArgonContainer();
+        $container->set('closure.service', static fn() => new ServiceWithTypedMethods())
+            ->defineInvocation('handle', ['id' => 1]);
+        $container->set(ServiceWithTypedMethods::class)
+            ->defineInvocation('undefinedMethod', []);
+
+        $generator = new ServiceInvocationGenerator($container);
+        $class = new ClassType('CompiledContainer');
+
+        $generator->generate($class);
+
+        $closureInvokerName = 'invoke_'
+            . StringHelper::sanitizeIdentifier('closure.service')
+            . '__handle';
+        $missingInvokerName = 'invoke_'
+            . StringHelper::sanitizeIdentifier(ServiceWithTypedMethods::class)
+            . '__undefinedMethod';
+
+        self::assertTrue($class->hasMethod($closureInvokerName));
+        self::assertTrue($class->hasMethod($missingInvokerName));
+        $closureMethod = $class->getMethod($closureInvokerName);
+        $missingMethod = $class->getMethod($missingInvokerName);
+
+        $escapedServiceClass = str_replace('\\', '\\\\', ServiceWithTypedMethods::class);
+
+        $closureBody = $closureMethod->getBody();
+        self::assertStringNotContainsString('(int)', $closureBody);
+        self::assertStringNotContainsString('(float)', $closureBody);
+
+        $missingBody = $missingMethod->getBody();
+        self::assertStringContainsString("\$controller = \$this->get('{$escapedServiceClass}');", $missingBody);
+        self::assertStringContainsString("\$controller->undefinedMethod(...\$mergedArgs);", $missingBody);
+    }
+}
diff --git a/tests/unit/Container/Compiler/Stubs/ServiceDependency.php b/tests/unit/Container/Compiler/Stubs/ServiceDependency.php
new file mode 100644
index 0000000..205c76b
--- /dev/null
+++ b/tests/unit/Container/Compiler/Stubs/ServiceDependency.php
@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Unit\Container\Compiler\Stubs;
+
+final class ServiceDependency
+{
+}
diff --git a/tests/unit/Container/Compiler/Stubs/ServiceWithTypedMethods.php b/tests/unit/Container/Compiler/Stubs/ServiceWithTypedMethods.php
new file mode 100644
index 0000000..01d289d
--- /dev/null
+++ b/tests/unit/Container/Compiler/Stubs/ServiceWithTypedMethods.php
@@ -0,0 +1,13 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Unit\Container\Compiler\Stubs;
+
+final class ServiceWithTypedMethods
+{
+    public function handle(int $id, float $ratio, ServiceDependency $dependency, ?string $note = null): array
+    {
+        return [$id, $ratio, $dependency, $note];
+    }
+}