diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8454e20..0261ce7 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,7 +19,7 @@ jobs:
       - name: Define shared matrix values
         id: matrix
         run: |
-          echo 'php_versions=["8.3","8.4","8.5"]' >> "$GITHUB_OUTPUT"
+          echo 'php_versions=["8.4","8.5"]' >> "$GITHUB_OUTPUT"
           echo 'dependency_versions=["prefer-lowest","prefer-stable"]' >> "$GITHUB_OUTPUT"
 
   run:
@@ -57,7 +57,9 @@ jobs:
           composer test:code
           composer test:lint
           composer test:refactor
-          # Skip Psalm on prefer-lowest: older transitive amphp versions can trigger PHP 8.4+ deprecations at startup.
+          if [ "${{ matrix.dependency-version }}" != "prefer-lowest" ]; then
+            composer test:static
+          fi
           if [ "${{ matrix.dependency-version }}" != "prefer-lowest" ]; then
             composer test:security
           fi
diff --git a/captainhook.json b/captainhook.json
index 09484cf..8ef4f97 100644
--- a/captainhook.json
+++ b/captainhook.json
@@ -18,10 +18,6 @@
                 "action": "composer audit",
                 "options": []
             },
-            {
-                "action": "composer test:security",
-                "options": []
-            },
             {
                 "action": "composer tests",
                 "options": []
diff --git a/composer.json b/composer.json
index aee2eb5..56afbaf 100644
--- a/composer.json
+++ b/composer.json
@@ -40,21 +40,15 @@
         }
     },
     "scripts": {
-        "test:code": "@php vendor/bin/pest --parallel --processes=10",
-        "test:security": "@php vendor/bin/psalm --config=psalm.xml --security-analysis --show-info=false --no-progress --threads=1",
-        "test:refactor": "@php vendor/bin/rector process --dry-run",
-        "test:lint": "@php vendor/bin/pint --test",
-        "test:hook": [
-            "captainhook hook:post-checkout",
-            "captainhook hook:pre-commit",
-            "captainhook hook:post-commit",
-            "captainhook hook:post-merge",
-            "captainhook hook:post-rewrite",
-            "captainhook hook:pre-push"
-        ],
+        "test:code": "@php -d error_reporting=24575 vendor/bin/pest --parallel --processes=10",
+        "test:security": "@php -d error_reporting=24575 vendor/bin/psalm --config=psalm.xml --security-analysis --show-info=false --no-progress --threads=1",
+        "test:static": "@php -d error_reporting=24575 vendor/bin/phpstan analyse --configuration=phpstan.neon.dist --memory-limit=1G --no-progress",
+        "test:refactor": "@php -d error_reporting=24575 vendor/bin/rector process --dry-run",
+        "test:lint": "@php -d error_reporting=24575 vendor/bin/pint --test",
         "tests": [
             "@test:code",
             "@test:lint",
+            "@test:static",
             "@test:refactor",
             "@test:security"
         ],
@@ -72,6 +66,7 @@
         "pestphp/pest-plugin-drift": "^4.1",
         "rector/rector": "^2.3.9",
         "symfony/var-dumper": "^7.3 || ^8.0.8",
-        "vimeo/psalm": "^6.16.1"
+        "vimeo/psalm": "^6.16.1",
+        "tomasvotruba/cognitive-complexity": "^1.1"
     }
 }
diff --git a/pest.xml b/pest.xml
index 8f88bf3..d5d12d8 100644
--- a/pest.xml
+++ b/pest.xml
@@ -1,14 +1,22 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<pest>
-    <testsuites>
-        <testsuite name="Unit">
-            <directory>tests/Unit</directory>
-        </testsuite>
-        <testsuite name="Feature">
-            <directory>tests/Feature</directory>
-        </testsuite>
-        <testsuite name="Integration">
-            <directory>tests/Integration</directory>
-        </testsuite>
-    </testsuites>
-</pest>
\ No newline at end of file
+<phpunit
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd"
+    bootstrap="vendor/autoload.php"
+    colors="true"
+    displayDetailsOnTestsThatTriggerWarnings="true">
+  <testsuites>
+    <testsuite name="tests">
+      <directory>./tests</directory>
+    </testsuite>
+  </testsuites>
+  <source>
+    <include>
+      <directory suffix=".php">./src</directory>
+    </include>
+  </source>
+  <coverage includeUncoveredFiles="true"/>
+  <php>
+    <ini name="error_reporting" value="24575"/>
+  </php>
+</phpunit>
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
index 2ca6adc..068e2a6 100644
--- a/phpstan.neon.dist
+++ b/phpstan.neon.dist
@@ -1,8 +1,14 @@
+includes:
+    - vendor/tomasvotruba/cognitive-complexity/config/extension.neon
+
 parameters:
-    level: 3
+    customRulesetUsed: true
     paths:
         - src
-        - tests
-    tmpDir: var/phpstan
     parallel:
         maximumNumberOfProcesses: 1
+    cognitive_complexity:
+        class: 150
+        function: 15
+        dependency_tree: 150
+        dependency_tree_types: []
diff --git a/phpunit.xml b/phpunit.xml
index f504e3d..d5d12d8 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -1,16 +1,22 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd"
-         bootstrap="vendor/autoload.php"
-         colors="true">
-    <testsuites>
-        <testsuite name="Test Suite">
-            <directory suffix="Test.php">./tests</directory>
-        </testsuite>
-    </testsuites>
-    <source>
-        <include>
-            <directory>./src</directory>
-        </include>
-    </source>
+<phpunit
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd"
+    bootstrap="vendor/autoload.php"
+    colors="true"
+    displayDetailsOnTestsThatTriggerWarnings="true">
+  <testsuites>
+    <testsuite name="tests">
+      <directory>./tests</directory>
+    </testsuite>
+  </testsuites>
+  <source>
+    <include>
+      <directory suffix=".php">./src</directory>
+    </include>
+  </source>
+  <coverage includeUncoveredFiles="true"/>
+  <php>
+    <ini name="error_reporting" value="24575"/>
+  </php>
 </phpunit>
diff --git a/pint.json b/pint.json
index 69de9d0..e6b7949 100644
--- a/pint.json
+++ b/pint.json
@@ -1,8 +1,7 @@
 {
     "preset": "psr12",
     "exclude": [
-        "tests",
-        "var"
+        "tests"
     ],
     "notPath": [
         "rector.php"
diff --git a/psalm.xml b/psalm.xml
index 7dff260..37695ab 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -4,7 +4,6 @@
     xmlns="https://getpsalm.org/schema/config"
     xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
     errorLevel="3"
-    cacheDirectory=".psalm-cache"
 >
     <projectFiles>
         <directory name="src" />
diff --git a/rector.php b/rector.php
index 83ea877..8a280ec 100644
--- a/rector.php
+++ b/rector.php
@@ -6,11 +6,11 @@
 use Rector\Set\ValueObject\SetList;
 
 return static function (RectorConfig $rectorConfig): void {
-    $rectorConfig->paths([__DIR__ . '/src']);
+    $rectorConfig->paths([__DIR__.'/src']);
 
-    $setConstant = SetList::class . '::PHP_' . PHP_MAJOR_VERSION . PHP_MINOR_VERSION;
-    if (!defined($setConstant)) {
-        $setConstant = SetList::class . '::PHP_84';
+    $setConstant = SetList::class.'::PHP_'.PHP_MAJOR_VERSION.PHP_MINOR_VERSION;
+    if (! defined($setConstant)) {
+        $setConstant = SetList::class.'::PHP_84';
     }
 
     $rectorConfig->sets([