diff --git a/src/Configuration/PhpUnitConfigGenerator.php b/src/Configuration/PhpUnitConfigGenerator.php
index c800f0a..c6d8d2e 100644
--- a/src/Configuration/PhpUnitConfigGenerator.php
+++ b/src/Configuration/PhpUnitConfigGenerator.php
@@ -41,7 +41,7 @@ public function generate(ProjectContext $context): string
             <?xml version="1.0" encoding="UTF-8"?>
             <!-- Generated by KaririCode Devkit — override via devkit.php (project root) -->
             <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-                     xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/11.0/phpunit.xsd"
+                     xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/12.5/phpunit.xsd"
                      bootstrap="../vendor/autoload.php"
                      cacheDirectory="build/.phpunit.cache"
                      executionOrder="depends,defects"
diff --git a/tests/Unit/Command/AbstractCommandTest.php b/tests/Unit/Command/AbstractCommandTest.php
index 30612b9..25d5193 100644
--- a/tests/Unit/Command/AbstractCommandTest.php
+++ b/tests/Unit/Command/AbstractCommandTest.php
@@ -184,49 +184,4 @@ public function passthroughWithNoConsumedFlagsReturnsAll(): void
         $result = $this->command->callPassthrough($args);
         $this->assertSame($args, $result);
     }
-
-    // ── Output helpers — fwrite(STDOUT/STDERR) cannot be captured by ob_start ─
-    // We verify these methods exist and do not throw exceptions.
-
-    #[Test]
-    public function infoDoesNotThrow(): void
-    {
-        $this->expectNotToPerformAssertions();
-        $this->command->callInfo('hello');
-    }
-
-    #[Test]
-    public function warningDoesNotThrow(): void
-    {
-        $this->expectNotToPerformAssertions();
-        $this->command->callWarning('caution');
-    }
-
-    #[Test]
-    public function errorDoesNotThrow(): void
-    {
-        $this->expectNotToPerformAssertions();
-        $this->command->callError('something failed');
-    }
-
-    #[Test]
-    public function lineDoesNotThrow(): void
-    {
-        $this->expectNotToPerformAssertions();
-        $this->command->callLine('some output');
-    }
-
-    #[Test]
-    public function bannerDoesNotThrow(): void
-    {
-        $this->expectNotToPerformAssertions();
-        $this->command->callBanner('My Banner');
-    }
-
-    #[Test]
-    public function sectionDoesNotThrow(): void
-    {
-        $this->expectNotToPerformAssertions();
-        $this->command->callSection('My Section');
-    }
 }
diff --git a/tests/Unit/Configuration/CsFixerConfigGeneratorTest.php b/tests/Unit/Configuration/CsFixerConfigGeneratorTest.php
index 06e772c..8d20309 100644
--- a/tests/Unit/Configuration/CsFixerConfigGeneratorTest.php
+++ b/tests/Unit/Configuration/CsFixerConfigGeneratorTest.php
@@ -8,9 +8,11 @@
 use KaririCode\Devkit\Core\ProjectContext;
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\Attributes\UsesClass;
 use PHPUnit\Framework\TestCase;
 
 #[CoversClass(CsFixerConfigGenerator::class)]
+#[UsesClass(ProjectContext::class)]
 final class CsFixerConfigGeneratorTest extends TestCase
 {
     private CsFixerConfigGenerator $generator;
diff --git a/tests/Unit/Configuration/PhpStanConfigGeneratorTest.php b/tests/Unit/Configuration/PhpStanConfigGeneratorTest.php
index 7fb6d3b..a3b0f91 100644
--- a/tests/Unit/Configuration/PhpStanConfigGeneratorTest.php
+++ b/tests/Unit/Configuration/PhpStanConfigGeneratorTest.php
@@ -8,9 +8,11 @@
 use KaririCode\Devkit\Core\ProjectContext;
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\Attributes\UsesClass;
 use PHPUnit\Framework\TestCase;
 
 #[CoversClass(PhpStanConfigGenerator::class)]
+#[UsesClass(ProjectContext::class)]
 final class PhpStanConfigGeneratorTest extends TestCase
 {
     private PhpStanConfigGenerator $generator;
diff --git a/tests/Unit/Configuration/PhpUnitConfigGeneratorTest.php b/tests/Unit/Configuration/PhpUnitConfigGeneratorTest.php
index 1972a39..cb6846f 100644
--- a/tests/Unit/Configuration/PhpUnitConfigGeneratorTest.php
+++ b/tests/Unit/Configuration/PhpUnitConfigGeneratorTest.php
@@ -8,9 +8,11 @@
 use KaririCode\Devkit\Core\ProjectContext;
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\Attributes\UsesClass;
 use PHPUnit\Framework\TestCase;
 
 #[CoversClass(PhpUnitConfigGenerator::class)]
+#[UsesClass(ProjectContext::class)]
 final class PhpUnitConfigGeneratorTest extends TestCase
 {
     private PhpUnitConfigGenerator $generator;
diff --git a/tests/Unit/Configuration/PsalmConfigGeneratorTest.php b/tests/Unit/Configuration/PsalmConfigGeneratorTest.php
index ff9b56a..2c939fe 100644
--- a/tests/Unit/Configuration/PsalmConfigGeneratorTest.php
+++ b/tests/Unit/Configuration/PsalmConfigGeneratorTest.php
@@ -8,9 +8,11 @@
 use KaririCode\Devkit\Core\ProjectContext;
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\Attributes\UsesClass;
 use PHPUnit\Framework\TestCase;
 
 #[CoversClass(PsalmConfigGenerator::class)]
+#[UsesClass(ProjectContext::class)]
 final class PsalmConfigGeneratorTest extends TestCase
 {
     private PsalmConfigGenerator $generator;
diff --git a/tests/Unit/Configuration/RectorConfigGeneratorTest.php b/tests/Unit/Configuration/RectorConfigGeneratorTest.php
index 5fc58bd..91c4537 100644
--- a/tests/Unit/Configuration/RectorConfigGeneratorTest.php
+++ b/tests/Unit/Configuration/RectorConfigGeneratorTest.php
@@ -8,9 +8,11 @@
 use KaririCode\Devkit\Core\ProjectContext;
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\Attributes\UsesClass;
 use PHPUnit\Framework\TestCase;
 
 #[CoversClass(RectorConfigGenerator::class)]
+#[UsesClass(ProjectContext::class)]
 final class RectorConfigGeneratorTest extends TestCase
 {
     private RectorConfigGenerator $generator;
diff --git a/tests/Unit/Core/DevkitTest.php b/tests/Unit/Core/DevkitTest.php
index 4b1ce60..67eea58 100644
--- a/tests/Unit/Core/DevkitTest.php
+++ b/tests/Unit/Core/DevkitTest.php
@@ -7,6 +7,7 @@
 use KaririCode\Devkit\Contract\ConfigGenerator;
 use KaririCode\Devkit\Contract\ToolRunner;
 use KaririCode\Devkit\Core\Devkit;
+use KaririCode\Devkit\Core\DevkitConfig;
 use KaririCode\Devkit\Core\ProjectContext;
 use KaririCode\Devkit\Core\ProjectDetector;
 use KaririCode\Devkit\Exception\DevkitException;
@@ -19,7 +20,8 @@
 
 #[CoversClass(Devkit::class)]
 #[UsesClass(ProjectContext::class)]
-#[UsesClass(DevkitException::class)]
+#[UsesClass(ProjectDetector::class)]
+#[UsesClass(DevkitConfig::class)]
 #[UsesClass(QualityReport::class)]
 #[UsesClass(ToolResult::class)]
 final class DevkitTest extends TestCase
diff --git a/tests/Unit/Core/ProjectDetectorTest.php b/tests/Unit/Core/ProjectDetectorTest.php
index 60da41b..258fe6d 100644
--- a/tests/Unit/Core/ProjectDetectorTest.php
+++ b/tests/Unit/Core/ProjectDetectorTest.php
@@ -16,7 +16,6 @@
 #[CoversClass(ProjectDetector::class)]
 #[UsesClass(ProjectContext::class)]
 #[UsesClass(DevkitConfig::class)]
-#[UsesClass(DevkitException::class)]
 final class ProjectDetectorTest extends TestCase
 {
     private string $tmpDir;
diff --git a/tests/Unit/Exception/ConfigurationExceptionTest.php b/tests/Unit/Exception/ConfigurationExceptionTest.php
index f4340b1..05a2a5f 100644
--- a/tests/Unit/Exception/ConfigurationExceptionTest.php
+++ b/tests/Unit/Exception/ConfigurationExceptionTest.php
@@ -6,13 +6,11 @@
 
 use KaririCode\Devkit\Exception\ConfigurationException;
 use KaririCode\Devkit\Exception\DevkitException;
-use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\Attributes\CoversNothing;
 use PHPUnit\Framework\Attributes\Test;
-use PHPUnit\Framework\Attributes\UsesClass;
 use PHPUnit\Framework\TestCase;
 
-#[CoversClass(ConfigurationException::class)]
-#[UsesClass(DevkitException::class)]
+#[CoversNothing]
 final class ConfigurationExceptionTest extends TestCase
 {
     #[Test]
diff --git a/tests/Unit/Exception/DevkitExceptionTest.php b/tests/Unit/Exception/DevkitExceptionTest.php
index b3ff102..c241d5a 100644
--- a/tests/Unit/Exception/DevkitExceptionTest.php
+++ b/tests/Unit/Exception/DevkitExceptionTest.php
@@ -5,11 +5,11 @@
 namespace KaririCode\Devkit\Tests\Unit\Exception;
 
 use KaririCode\Devkit\Exception\DevkitException;
-use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\Attributes\CoversNothing;
 use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 
-#[CoversClass(DevkitException::class)]
+#[CoversNothing]
 final class DevkitExceptionTest extends TestCase
 {
     #[Test]
diff --git a/tests/Unit/Exception/ToolExceptionTest.php b/tests/Unit/Exception/ToolExceptionTest.php
index 418e011..6c89c6a 100644
--- a/tests/Unit/Exception/ToolExceptionTest.php
+++ b/tests/Unit/Exception/ToolExceptionTest.php
@@ -6,13 +6,11 @@
 
 use KaririCode\Devkit\Exception\DevkitException;
 use KaririCode\Devkit\Exception\ToolException;
-use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\Attributes\CoversNothing;
 use PHPUnit\Framework\Attributes\Test;
-use PHPUnit\Framework\Attributes\UsesClass;
 use PHPUnit\Framework\TestCase;
 
-#[CoversClass(ToolException::class)]
-#[UsesClass(DevkitException::class)]
+#[CoversNothing]
 final class ToolExceptionTest extends TestCase
 {
     #[Test]