diff --git a/composer.json b/composer.json
index fcc7a53..75ce20e 100644
--- a/composer.json
+++ b/composer.json
@@ -27,7 +27,10 @@
         "symfony/browser-kit": "^6.4",
         "symfony/framework-bundle": "^6.4",
         "symfony/http-kernel": "^6.4",
-        "symfony/stopwatch": "^6.4"
+        "symfony/stopwatch": "^6.4",
+        "phpstan/phpstan": "^1.11",
+        "phpstan/phpstan-symfony": "^1.4",
+        "symfony/runtime": "^6.4"
     },
     "autoload": {
         "psr-4": {
@@ -43,6 +46,8 @@
         "ci": [
             "composer validate",
             "@check-cs",
+            "tests/Symfony/console ca:cl -e test",
+            "@phpstan",
             "@phpunit"
         ],
         "check-cs": [
@@ -53,11 +58,17 @@
         ],
         "phpunit": [
             "phpunit"
+        ],
+        "phpstan": [
+            "phpstan analyse -c phpstan.neon"
         ]
     },
     "config": {
         "platform": {
             "php": "8.1"
+        },
+        "allow-plugins": {
+            "symfony/runtime": true
         }
     }
 }
diff --git a/composer.lock b/composer.lock
index 467b327..b6f9464 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "288fafaa3ceabf8210ed9c794018e4c9",
+    "content-hash": "d800f3f145d9deb361165e67023f192d",
     "packages": [
         {
             "name": "akondas/php-runtime",
@@ -899,6 +899,136 @@
             },
             "time": "2022-02-21T01:04:05+00:00"
         },
+        {
+            "name": "phpstan/phpstan",
+            "version": "1.11.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpstan/phpstan.git",
+                "reference": "e64220a05c1209fc856d58e789c3b7a32c0bb9a5"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/e64220a05c1209fc856d58e789c3b7a32c0bb9a5",
+                "reference": "e64220a05c1209fc856d58e789c3b7a32c0bb9a5",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.2|^8.0"
+            },
+            "conflict": {
+                "phpstan/phpstan-shim": "*"
+            },
+            "bin": [
+                "phpstan",
+                "phpstan.phar"
+            ],
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "PHPStan - PHP Static Analysis Tool",
+            "keywords": [
+                "dev",
+                "static analysis"
+            ],
+            "support": {
+                "docs": "https://phpstan.org/user-guide/getting-started",
+                "forum": "https://github.com/phpstan/phpstan/discussions",
+                "issues": "https://github.com/phpstan/phpstan/issues",
+                "security": "https://github.com/phpstan/phpstan/security/policy",
+                "source": "https://github.com/phpstan/phpstan-src"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/ondrejmirtes",
+                    "type": "github"
+                },
+                {
+                    "url": "https://github.com/phpstan",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-05-31T13:53:37+00:00"
+        },
+        {
+            "name": "phpstan/phpstan-symfony",
+            "version": "1.4.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpstan/phpstan-symfony.git",
+                "reference": "af6ae0f4b91bc080265e80776af26da3e5befb28"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phpstan/phpstan-symfony/zipball/af6ae0f4b91bc080265e80776af26da3e5befb28",
+                "reference": "af6ae0f4b91bc080265e80776af26da3e5befb28",
+                "shasum": ""
+            },
+            "require": {
+                "ext-simplexml": "*",
+                "php": "^7.2 || ^8.0",
+                "phpstan/phpstan": "^1.11"
+            },
+            "conflict": {
+                "symfony/framework-bundle": "<3.0"
+            },
+            "require-dev": {
+                "nikic/php-parser": "^4.13.0",
+                "php-parallel-lint/php-parallel-lint": "^1.2",
+                "phpstan/phpstan-phpunit": "^1.3.11",
+                "phpstan/phpstan-strict-rules": "^1.5.1",
+                "phpunit/phpunit": "^8.5.29 || ^9.5",
+                "psr/container": "1.0 || 1.1.1",
+                "symfony/config": "^5.4 || ^6.1",
+                "symfony/console": "^5.4 || ^6.1",
+                "symfony/dependency-injection": "^5.4 || ^6.1",
+                "symfony/form": "^5.4 || ^6.1",
+                "symfony/framework-bundle": "^5.4 || ^6.1",
+                "symfony/http-foundation": "^5.4 || ^6.1",
+                "symfony/messenger": "^5.4",
+                "symfony/polyfill-php80": "^1.24",
+                "symfony/serializer": "^5.4",
+                "symfony/service-contracts": "^2.2.0"
+            },
+            "type": "phpstan-extension",
+            "extra": {
+                "phpstan": {
+                    "includes": [
+                        "extension.neon",
+                        "rules.neon"
+                    ]
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "PHPStan\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Lukáš Unger",
+                    "email": "looky.msc@gmail.com",
+                    "homepage": "https://lookyman.net"
+                }
+            ],
+            "description": "Symfony Framework extensions and rules for PHPStan",
+            "support": {
+                "issues": "https://github.com/phpstan/phpstan-symfony/issues",
+                "source": "https://github.com/phpstan/phpstan-symfony/tree/1.4.3"
+            },
+            "time": "2024-05-30T15:01:27+00:00"
+        },
         {
             "name": "phpunit/php-code-coverage",
             "version": "10.1.14",
@@ -5053,6 +5183,85 @@
             ],
             "time": "2024-04-18T09:22:46+00:00"
         },
+        {
+            "name": "symfony/runtime",
+            "version": "v6.4.7",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/runtime.git",
+                "reference": "20c90eb66bbf82fdb3ef74f2ea4ecf08518cbb5e"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/runtime/zipball/20c90eb66bbf82fdb3ef74f2ea4ecf08518cbb5e",
+                "reference": "20c90eb66bbf82fdb3ef74f2ea4ecf08518cbb5e",
+                "shasum": ""
+            },
+            "require": {
+                "composer-plugin-api": "^1.0|^2.0",
+                "php": ">=8.1"
+            },
+            "conflict": {
+                "symfony/dotenv": "<5.4"
+            },
+            "require-dev": {
+                "composer/composer": "^1.0.2|^2.0",
+                "symfony/console": "^5.4.9|^6.0.9|^7.0",
+                "symfony/dotenv": "^5.4|^6.0|^7.0",
+                "symfony/http-foundation": "^5.4|^6.0|^7.0",
+                "symfony/http-kernel": "^5.4|^6.0|^7.0"
+            },
+            "type": "composer-plugin",
+            "extra": {
+                "class": "Symfony\\Component\\Runtime\\Internal\\ComposerPlugin"
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\Runtime\\": "",
+                    "Symfony\\Runtime\\Symfony\\Component\\": "Internal/"
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Enables decoupling PHP applications from global state",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "runtime"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/runtime/tree/v6.4.7"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2024-04-18T09:22:46+00:00"
+        },
         {
             "name": "symfony/service-contracts",
             "version": "v3.5.0",
diff --git a/phpstan.neon b/phpstan.neon
new file mode 100644
index 0000000..26eb45e
--- /dev/null
+++ b/phpstan.neon
@@ -0,0 +1,13 @@
+includes:
+	- vendor/phpstan/phpstan/conf/bleedingEdge.neon
+	- vendor/phpstan/phpstan-symfony/extension.neon
+	- vendor/phpstan/phpstan-symfony/rules.neon
+
+parameters:
+	phpVersion: 80100
+	level: max
+	paths:
+		- src
+		- tests
+	symfony:
+		containerXmlPath: var/cache/test/Chaos_Monkey_Symfony_Tests_Symfony_KernelTestDebugContainer.xml
diff --git a/src/DependencyInjection/ChaosMonkeyExtension.php b/src/DependencyInjection/ChaosMonkeyExtension.php
index 8f802c6..662462a 100644
--- a/src/DependencyInjection/ChaosMonkeyExtension.php
+++ b/src/DependencyInjection/ChaosMonkeyExtension.php
@@ -9,20 +9,42 @@
 use Symfony\Component\DependencyInjection\Extension\Extension;
 use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
 
+/**
+ * @phpstan-type ConfigArray array{
+ *     enabled: bool,
+ *     probability: int,
+ *     assaults: array{
+ *      latency: array{active: bool, minimum: int, maximum: int},
+ *      memory: array{active: bool, fill_fraction: float},
+ *      exception: array{active: bool, class: class-string<\Throwable>},
+ *      kill_app: array{active: bool}
+ *     },
+ *     watchers: array{
+ *      request: array{enabled: bool, priority: int}
+ *     }
+ * }
+ */
 class ChaosMonkeyExtension extends Extension
 {
-    public function load(array $configs, ContainerBuilder $container)
+    /**
+     * @param array<array<mixed>> $configs
+     */
+    public function load(array $configs, ContainerBuilder $container): void
     {
         $loader = new XmlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
         $loader->load('services.xml');
 
         $configuration = new Configuration();
+        /** @var ConfigArray $config */
         $config = $this->processConfiguration($configuration, $configs);
 
         $this->setChaosMonkeySettings($container, $config);
         $this->enableWatchers($container, $config);
     }
 
+    /**
+     * @param ConfigArray $config
+     */
     private function setChaosMonkeySettings(ContainerBuilder $container, array $config): void
     {
         $definition = $container->getDefinition('chaos_monkey.settings');
@@ -42,6 +64,9 @@ private function setChaosMonkeySettings(ContainerBuilder $container, array $conf
         $definition->addMethodCall('setKillAppActive', [$config['assaults']['kill_app']['active']]);
     }
 
+    /**
+     * @param ConfigArray $config
+     */
     private function enableWatchers(ContainerBuilder $container, array $config): void
     {
         if ($config['watchers']['request']['enabled'] === true) {
diff --git a/tests/Controller/SymfonyControllerTest.php b/tests/Controller/SymfonyControllerTest.php
index 2156843..d4fcdf8 100644
--- a/tests/Controller/SymfonyControllerTest.php
+++ b/tests/Controller/SymfonyControllerTest.php
@@ -5,16 +5,9 @@
 namespace Chaos\Monkey\Symfony\Tests\Controller;
 
 use Chaos\Monkey\Settings;
-use Chaos\Monkey\Symfony\ChaosMonkeyBundle;
+use Chaos\Monkey\Symfony\Tests\Symfony\Kernel;
 use PHPUnit\Framework\TestCase;
-use Psr\Log\NullLogger;
-use Symfony\Bundle\FrameworkBundle\FrameworkBundle;
-use Symfony\Bundle\FrameworkBundle\Kernel\MicroKernelTrait;
 use Symfony\Bundle\FrameworkBundle\KernelBrowser;
-use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
-use Symfony\Component\HttpFoundation\Response;
-use Symfony\Component\HttpKernel\Kernel;
-use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
 use Symfony\Component\Stopwatch\Stopwatch;
 
 class SymfonyControllerTest extends TestCase
@@ -23,7 +16,7 @@ class SymfonyControllerTest extends TestCase
 
     protected function setUp(): void
     {
-        $this->client = new KernelBrowser($kernel = new SymfonyControllerKernel('test', false));
+        $this->client = new KernelBrowser($kernel = new Kernel('test', true));
         $this->client->disableReboot();
         $kernel->boot();
     }
@@ -92,35 +85,3 @@ private function chaosMonkeySettings(): Settings
         return $this->client->getContainer()->get('chaos_monkey')->settings();
     }
 }
-
-class SymfonyControllerKernel extends Kernel
-{
-    use MicroKernelTrait;
-
-    public function registerBundles(): iterable
-    {
-        return [
-            new FrameworkBundle(),
-            new ChaosMonkeyBundle(),
-        ];
-    }
-
-    protected function configureContainer(ContainerConfigurator $c): void
-    {
-        $c->extension('framework', [
-            'secret' => 'S0ME_SECRET',
-        ]);
-
-        $c->services()->set('logger', NullLogger::class);
-    }
-
-    protected function configureRoutes(RoutingConfigurator $routes)
-    {
-        $routes->add('home', '/hello')->controller([$this, 'hello']);
-    }
-
-    public function hello(): Response
-    {
-        return new Response('Hello world');
-    }
-}
diff --git a/tests/Symfony/Kernel.php b/tests/Symfony/Kernel.php
new file mode 100644
index 0000000..c2ba8ed
--- /dev/null
+++ b/tests/Symfony/Kernel.php
@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Chaos\Monkey\Symfony\Tests\Symfony;
+
+use Chaos\Monkey\Symfony\ChaosMonkeyBundle;
+use Psr\Log\NullLogger;
+use Symfony\Bundle\FrameworkBundle\FrameworkBundle;
+use Symfony\Bundle\FrameworkBundle\Kernel\MicroKernelTrait;
+use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpKernel\Kernel as SymfonyKernel;
+use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
+
+final class Kernel extends SymfonyKernel
+{
+    use MicroKernelTrait;
+
+    public function registerBundles(): iterable
+    {
+        return [
+            new FrameworkBundle(),
+            new ChaosMonkeyBundle(),
+        ];
+    }
+
+    protected function configureContainer(ContainerConfigurator $container): void
+    {
+        $container->extension('framework', [
+            'secret' => 'S0ME_SECRET',
+        ]);
+
+        $container->services()->set('logger', NullLogger::class);
+    }
+
+    protected function configureRoutes(RoutingConfigurator $routes): void
+    {
+        $routes->add('home', '/hello')->controller([$this, 'hello']);
+    }
+
+    public function hello(): Response
+    {
+        return new Response('Hello world');
+    }
+}
diff --git a/tests/Symfony/console b/tests/Symfony/console
new file mode 100755
index 0000000..df9c762
--- /dev/null
+++ b/tests/Symfony/console
@@ -0,0 +1,17 @@
+#!/usr/bin/env php
+<?php
+
+use Chaos\Monkey\Symfony\Tests\Symfony\Kernel;
+use Symfony\Bundle\FrameworkBundle\Console\Application;
+
+if (!is_file(__DIR__.'/../../vendor/autoload_runtime.php')) {
+    throw new LogicException('Symfony Runtime is missing. Try running "composer require symfony/runtime".');
+}
+
+require_once __DIR__.'/../../vendor/autoload_runtime.php';
+
+return function (array $context) {
+    $kernel = new Kernel($context['APP_ENV'], (bool) $context['APP_DEBUG']);
+
+    return new Application($kernel);
+};