diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index f71bc26..ef35c67 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -31,5 +31,15 @@ jobs:
       - name: Install dependencies
         run: composer install --no-interaction --no-progress --no-suggest --prefer-dist
 
+      - name: Install dependencies for basic example
+        working-directory: examples/basic
+        run: composer install --no-interaction --no-progress --no-suggest --prefer-dist
+
       - name: PHP CS Fixer
         run: vendor/bin/php-cs-fixer fix --dry-run --diff
+
+      - name: PHPStan
+        run: vendor/bin/phpstan analyse --no-progress
+
+      - name: PHPStan (examples)
+        run: vendor/bin/phpstan analyse --no-progress -c phpstan.examples.neon
diff --git a/chandler/Bootstrap.php b/chandler/Bootstrap.php
index 38812c9..c8753a3 100644
--- a/chandler/Bootstrap.php
+++ b/chandler/Bootstrap.php
@@ -3,7 +3,7 @@
 declare(strict_types=1);
 use Tracy\Debugger;
 
-define("CHANDLER_VER", "0.1.0", false);
+define("CHANDLER_VER", "0.1.0");
 
 /**
  * Bootstrap class, that is called during framework starting phase.
@@ -27,18 +27,22 @@ public function __construct(?string $projectRoot = null, bool $skipExtensions =
 
     private function ensureDirectoriesCreated(): void
     {
-        function makeDir($path)
-        {
-            return is_dir($path) || mkdir($path);
+        $dirs = [
+            "/logs",
+            "/tmp",
+            "/tmp/cache",
+            "/tmp/cache/database",
+            "/tmp/cache/templates",
+            "/tmp/cache/yaml",
+            "/tmp/plugins-artifacts",
+        ];
+
+        foreach ($dirs as $dir) {
+            $path = $this->projectRoot . $dir;
+            if (!is_dir($path)) {
+                mkdir($path);
+            }
         }
-
-        makeDir($this->projectRoot . "/logs");
-        makeDir($this->projectRoot . "/tmp");
-        makeDir($this->projectRoot . "/tmp/cache");
-        makeDir($this->projectRoot . "/tmp/cache/database");
-        makeDir($this->projectRoot . "/tmp/cache/templates");
-        makeDir($this->projectRoot . "/tmp/cache/yaml");
-        makeDir($this->projectRoot . "/tmp/plugins-artifacts");
     }
 
     /**
@@ -118,7 +122,7 @@ private function defineIP(): void
             $ip = $_SERVER["REMOTE_ADDR"];
         }
 
-        define("CONNECTING_IP", $ip, false);
+        define("CONNECTING_IP", $ip);
     }
 
     /**
@@ -190,7 +194,7 @@ private function initCaptcha(): void
     public function ignite(bool $headless = false): void
     {
         if (!defined("CHANDLER_ROOT")) {
-            define("CHANDLER_ROOT", $this->projectRoot, false);
+            define("CHANDLER_ROOT", $this->projectRoot);
         }
 
         chandler_init_yaml_cache();
diff --git a/chandler/Captcha/CaptchaManager.php b/chandler/Captcha/CaptchaManager.php
index 3e70cc4..7ea1a4f 100644
--- a/chandler/Captcha/CaptchaManager.php
+++ b/chandler/Captcha/CaptchaManager.php
@@ -8,7 +8,7 @@
 use Chandler\Session\Session;
 use Chandler\Patterns\TSimpleSingleton;
 
-class CaptchaManager
+final class CaptchaManager
 {
     use TSimpleSingleton;
 
diff --git a/chandler/Database/DatabaseConnection.php b/chandler/Database/DatabaseConnection.php
index 182d657..12fd254 100644
--- a/chandler/Database/DatabaseConnection.php
+++ b/chandler/Database/DatabaseConnection.php
@@ -8,7 +8,7 @@
 use Nette\Caching\Storages\FileStorage;
 use Nette\Database\Conventions\DiscoveredConventions;
 
-class DatabaseConnection
+final class DatabaseConnection
 {
     private static $self = null;
 
diff --git a/chandler/Database/Log.php b/chandler/Database/Log.php
index 6854201..fcbfe63 100644
--- a/chandler/Database/Log.php
+++ b/chandler/Database/Log.php
@@ -54,12 +54,7 @@ public function getTypeNom(): string
 
     public function getObjectType(): string
     {
-        $type = tr("log_" . $this->getObjectTable());
-        if ($type === "@log_" . $this->getObjectTable()) {
-            return str_replace(CHANDLER_ROOT_CONF["preferences"]["logs"]["entitiesNamespace"], "", $this->getRecord()->object_model);
-        } else {
-            return $type;
-        }
+        return str_replace(CHANDLER_ROOT_CONF["preferences"]["logs"]["entitiesNamespace"], "", $this->getRecord()->object_model);
     }
 
     public function getObjectName(): string
diff --git a/chandler/Eventing/EventDispatcher.php b/chandler/Eventing/EventDispatcher.php
index 4317065..ff2cba7 100644
--- a/chandler/Eventing/EventDispatcher.php
+++ b/chandler/Eventing/EventDispatcher.php
@@ -6,7 +6,7 @@
 
 use Chandler\Patterns\TSimpleSingleton;
 
-class EventDispatcher
+final class EventDispatcher
 {
     use TSimpleSingleton;
     private $hooks = [];
@@ -20,7 +20,7 @@ public function addListener($hook): bool
 
     public function pushEvent(Events\Event $event): Events\Event
     {
-        foreach ($hooks as $hook) {
+        foreach ($this->hooks as $hook) {
             if ($event instanceof Events\Cancelable) {
                 if ($event->isCancelled()) {
                     break;
@@ -28,7 +28,7 @@ public function pushEvent(Events\Event $event): Events\Event
             }
 
             $method = "on" . str_replace("Event", "", get_class($event));
-            if (!method_exists($hook, $methodName)) {
+            if (!method_exists($hook, $method)) {
                 continue;
             }
 
diff --git a/chandler/Eventing/Events/Cancelable.php b/chandler/Eventing/Events/Cancelable.php
index 71362b2..ae44c33 100644
--- a/chandler/Eventing/Events/Cancelable.php
+++ b/chandler/Eventing/Events/Cancelable.php
@@ -6,8 +6,6 @@
 
 interface Cancelable
 {
-    protected $cancelled;
-
     public function cancel(): void;
 
     public function isCancelled(): bool;
diff --git a/chandler/Extensions/ExtensionManager.php b/chandler/Extensions/ExtensionManager.php
index 465e691..27d877d 100644
--- a/chandler/Extensions/ExtensionManager.php
+++ b/chandler/Extensions/ExtensionManager.php
@@ -7,7 +7,7 @@
 use Chandler\Patterns\TSimpleSingleton;
 use Chandler\MVC\Routing\Router;
 
-class ExtensionManager
+final class ExtensionManager
 {
     use TSimpleSingleton;
     private $extensions = [];
@@ -68,10 +68,10 @@ private function init(): void
 
             $constName = str_replace("-", "_", mb_strtoupper($name));
             if (!defined($constName . "_ROOT")) {
-                define($constName . "_ROOT", $extPath, false);
+                define($constName . "_ROOT", $extPath);
             }
             if (!defined($constName . "_ROOT_CONF")) {
-                define($constName . "_ROOT_CONF", chandler_parse_yaml("$extPath/$name.yml"), false);
+                define($constName . "_ROOT_CONF", chandler_parse_yaml("$extPath/$name.yml"));
             }
 
             Router::setExtensionPath($name, $extPath);
diff --git a/chandler/MVC/Routing/Router.php b/chandler/MVC/Routing/Router.php
index 186c0fd..e2b5464 100644
--- a/chandler/MVC/Routing/Router.php
+++ b/chandler/MVC/Routing/Router.php
@@ -11,7 +11,7 @@
 use Chandler\MVC\IPresenter;
 use Nette\DI;
 
-class Router
+final class Router
 {
     use TSimpleSingleton;
     public const HANDLER_DELIMITER = "%([#@❤]|\->)%";
@@ -221,7 +221,8 @@ public function delegateStatic(string $namespace, string $path, ?array $queryPar
         $hash = "W/\"" . hash_file("snefru", $file) . "\"";
         if (isset($_SERVER["HTTP_IF_NONE_MATCH"])) {
             if ($_SERVER["HTTP_IF_NONE_MATCH"] === $hash) {
-                exit(header("HTTP/1.1 304"));
+                header("HTTP/1.1 304");
+                exit;
             }
         }
 
diff --git a/chandler/Patterns/TSimpleSingleton.php b/chandler/Patterns/TSimpleSingleton.php
index 6548046..a35a31f 100644
--- a/chandler/Patterns/TSimpleSingleton.php
+++ b/chandler/Patterns/TSimpleSingleton.php
@@ -6,13 +6,13 @@
 
 trait TSimpleSingleton
 {
-    private static $self = null;
+    private static ?self $self = null;
 
     private function __construct() {}
     private function __clone() {}
     public function __wakeup() {}
 
-    public static function i()
+    public static function i(): static
     {
         return static::$self ?? static::$self = new static();
     }
diff --git a/chandler/Security/Authenticator.php b/chandler/Security/Authenticator.php
index 1c31c38..9849a82 100644
--- a/chandler/Security/Authenticator.php
+++ b/chandler/Security/Authenticator.php
@@ -8,7 +8,7 @@
 use Chandler\Patterns\TSimpleSingleton;
 use Chandler\Database\DatabaseConnection;
 
-class Authenticator
+final class Authenticator
 {
     use TSimpleSingleton;
     private $db;
@@ -23,8 +23,6 @@ private function __construct()
         $this->session = Session::i();
     }
 
-    private function verifySuRights(string $uId): bool {}
-
     private function makeToken(string $user, string $ip, string $ua): string
     {
         $data  = ["user" => $user, "ip" => $ip, "ua" => $ua];
@@ -74,7 +72,7 @@ public function getUser(): ?User
 
         $su = $this->session->get("_su");
         $cacheKey = $token . "\x00" . ($su ?? "");
-        return @$this->cache[$cacheKey] ??= $this->resolveUser($token, $su);
+        return @self::$cache[$cacheKey] ??= $this->resolveUser($token, $su);
     }
 
     private function resolveUser(string $token, $su)
diff --git a/chandler/Security/User.php b/chandler/Security/User.php
index 7c6e29b..e155751 100644
--- a/chandler/Security/User.php
+++ b/chandler/Security/User.php
@@ -14,6 +14,7 @@
  * User class.
  *
  * @author kurotsun <celestine@vriska.ru>
+ * @phpstan-consistent-constructor
  */
 class User
 {
diff --git a/chandler/Session/Session.php b/chandler/Session/Session.php
index f0e37e8..8b0f3ae 100644
--- a/chandler/Session/Session.php
+++ b/chandler/Session/Session.php
@@ -13,7 +13,7 @@
  *
  * @author kurotsun <celestine@vriska.ru>
  */
-class Session
+final class Session
 {
     use TSimpleSingleton;
     /**
diff --git a/chandler/Signaling/SignalManager.php b/chandler/Signaling/SignalManager.php
index 658183b..b042239 100644
--- a/chandler/Signaling/SignalManager.php
+++ b/chandler/Signaling/SignalManager.php
@@ -14,7 +14,7 @@
  * @author kurotsun <celestine@vriska.ru>
  * @author Vladimir Barinov <veselcraft@icloud.com>
  */
-class SignalManager
+final class SignalManager
 {
     use TSimpleSingleton;
 
@@ -163,7 +163,7 @@ public function listen(\Closure $callback, int $for, int $time = 25): void
                     "updates" => [],
                 ]));
             }
-        } catch (Exception $e) {
+        } catch (\Exception $e) {
             error_log("Couldn't connect to Redis server, fallback to old sqlite method. Exception Message: " . $e->getMessage());
         }
 
@@ -291,7 +291,7 @@ public function triggerEvent(object $event, int $for): bool
             try {
                 $redisClient = new RedisClient(CHANDLER_ROOT_CONF["redisUrl"]);
                 $redisClient->publish('im' . $for, json_encode([$id, $event]));
-            } catch (Exception $e) {
+            } catch (\Exception $e) {
                 error_log("Couldn't connect to Redis server and push the event. Exception Message: " . $e->getMessage());
             }
         }
diff --git a/composer.json b/composer.json
index 67d74ba..f4fd80d 100644
--- a/composer.json
+++ b/composer.json
@@ -8,7 +8,9 @@
     },
     "scripts": {
         "fix": "php-cs-fixer fix",
-        "lint": "php-cs-fixer fix --dry-run --diff --verbose"
+        "lint": "php-cs-fixer fix --dry-run --diff --verbose",
+        "analyse": "phpstan analyse --no-progress",
+        "analyse:examples": "phpstan analyse --no-progress -c phpstan.examples.neon"
     },
     "require": {
         "php": "~8.2",
@@ -43,6 +45,7 @@
         ]
     },
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "^3.90"
+        "friendsofphp/php-cs-fixer": "^3.90",
+        "phpstan/phpstan": "^2.2"
     }
 }
diff --git a/composer.lock b/composer.lock
index d6cbbe6..5382034 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": "8a305c3d22aba624739164d06c741ca1",
+    "content-hash": "17b66472712481e6935c31a5698c1943",
     "packages": [
         {
             "name": "doctrine/deprecations",
@@ -3401,6 +3401,70 @@
             ],
             "time": "2026-07-30T15:46:02+00:00"
         },
+        {
+            "name": "phpstan/phpstan",
+            "version": "2.2.8",
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/e285254e60f33c21902efef4a926ca0987c06804",
+                "reference": "e285254e60f33c21902efef4a926ca0987c06804",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.4|^8.0"
+            },
+            "conflict": {
+                "phpstan/phpstan-shim": "*"
+            },
+            "bin": [
+                "phpstan",
+                "phpstan.phar"
+            ],
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Ondřej Mirtes"
+                },
+                {
+                    "name": "Markus Staab"
+                },
+                {
+                    "name": "Vincent Langlet"
+                }
+            ],
+            "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": "2026-08-04T22:21:45+00:00"
+        },
         {
             "name": "react/cache",
             "version": "v1.2.0",
diff --git a/examples/basic/bootstrap.php b/examples/basic/bootstrap.php
index 16e1d99..fc30f80 100644
--- a/examples/basic/bootstrap.php
+++ b/examples/basic/bootstrap.php
@@ -19,7 +19,7 @@
 
 // ── Project root ─────────────────────────────────────────────────
 // Tells Chandler where to find logs/, tmp/, cache/, etc.
-define("CHANDLER_ROOT", __DIR__, false);
+define("CHANDLER_ROOT", __DIR__);
 
 // ── YAML cache ───────────────────────────────────────────────────
 // Must be called before any config parsing.
@@ -29,7 +29,7 @@
 // A single YAML file holds both Chandler framework settings
 // (chandler:) and app-specific settings (helloapp:).
 $config = chandler_parse_yaml(__DIR__ . "/helloapp.yml");
-define("CHANDLER_ROOT_CONF", $config["chandler"], false);
+define("CHANDLER_ROOT_CONF", $config["chandler"]);
 
 // ── Register the app as a builtin extension ──────────────────────
 // Once registered, ExtensionManager will:
diff --git a/phpstan.examples.neon b/phpstan.examples.neon
new file mode 100644
index 0000000..5ba4da4
--- /dev/null
+++ b/phpstan.examples.neon
@@ -0,0 +1,11 @@
+parameters:
+    level: 0
+    # Avoid mentiong a path that may lead to examples/basic/vendor
+    # as it contains a cyclical symlink to Chandler and bloats the check.
+    # "excludePaths" does not help.
+    paths:
+        - examples/basic/bootstrap.php
+        - examples/basic/init.php
+        - examples/basic/htdocs/
+        - examples/basic/Web/
+    tmpDir: tmp/phpstan-examples
\ No newline at end of file
diff --git a/phpstan.neon b/phpstan.neon
new file mode 100644
index 0000000..6d992a2
--- /dev/null
+++ b/phpstan.neon
@@ -0,0 +1,6 @@
+parameters:
+    level: 0
+    paths:
+        - chandler/
+        - bin/
+    tmpDir: tmp/phpstan