diff --git a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/AddCoversClassAttributeRectorConfiguredTest.php b/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/AddCoversClassAttributeRectorConfiguredTest.php
deleted file mode 100644
index dc90ce10..00000000
--- a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/AddCoversClassAttributeRectorConfiguredTest.php
+++ /dev/null
@@ -1,28 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Rector\PHPUnit\Tests\CodeQuality\Rector\Class_\AddCoversClassAttributeRector;
-
-use Iterator;
-use PHPUnit\Framework\Attributes\DataProvider;
-use Rector\Testing\PHPUnit\AbstractRectorTestCase;
-
-final class AddCoversClassAttributeRectorConfiguredTest extends AbstractRectorTestCase
-{
-    #[DataProvider('provideData')]
-    public function test(string $filePath): void
-    {
-        $this->doTestFile($filePath);
-    }
-
-    public static function provideData(): Iterator
-    {
-        return self::yieldFilesFromDirectory(__DIR__ . '/ConfiguredFixture');
-    }
-
-    public function provideConfigFilePath(): string
-    {
-        return __DIR__ . '/config/configured_rule.php';
-    }
-}
diff --git a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/AddCoversClassAttributeRectorTest.php b/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/AddCoversClassAttributeRectorTest.php
deleted file mode 100644
index 082a69b6..00000000
--- a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/AddCoversClassAttributeRectorTest.php
+++ /dev/null
@@ -1,28 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Rector\PHPUnit\Tests\CodeQuality\Rector\Class_\AddCoversClassAttributeRector;
-
-use Iterator;
-use PHPUnit\Framework\Attributes\DataProvider;
-use Rector\Testing\PHPUnit\AbstractRectorTestCase;
-
-final class AddCoversClassAttributeRectorTest extends AbstractRectorTestCase
-{
-    #[DataProvider('provideData')]
-    public function test(string $filePath): void
-    {
-        $this->doTestFile($filePath);
-    }
-
-    public static function provideData(): Iterator
-    {
-        return self::yieldFilesFromDirectory(__DIR__ . '/Fixture');
-    }
-
-    public function provideConfigFilePath(): string
-    {
-        return __DIR__ . '/config/rule.php';
-    }
-}
diff --git a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/ConfiguredFixture/adds_covers_class_functional_test.php.inc b/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/ConfiguredFixture/adds_covers_class_functional_test.php.inc
deleted file mode 100644
index c02acaf2..00000000
--- a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/ConfiguredFixture/adds_covers_class_functional_test.php.inc
+++ /dev/null
@@ -1,22 +0,0 @@
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\ConfiguredFixture;
-
-use PHPUnit\Framework\TestCase;
-
-class SomeServiceFunctionalTest extends TestCase {}
-class SomeService {}
-
-?>
------
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\ConfiguredFixture;
-
-use PHPUnit\Framework\TestCase;
-
-#[\PHPUnit\Framework\Attributes\CoversClass(\Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\ConfiguredFixture\SomeService::class)]
-class SomeServiceFunctionalTest extends TestCase {}
-class SomeService {}
-
-?>
diff --git a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/ConfiguredFixture/adds_covers_class_integration_test.php.inc b/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/ConfiguredFixture/adds_covers_class_integration_test.php.inc
deleted file mode 100644
index a2175eaf..00000000
--- a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/ConfiguredFixture/adds_covers_class_integration_test.php.inc
+++ /dev/null
@@ -1,22 +0,0 @@
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\ConfiguredFixture;
-
-use PHPUnit\Framework\TestCase;
-
-class UserRepositoryIntegrationTest extends TestCase {}
-class UserRepository {}
-
-?>
------
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\ConfiguredFixture;
-
-use PHPUnit\Framework\TestCase;
-
-#[\PHPUnit\Framework\Attributes\CoversClass(\Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\ConfiguredFixture\UserRepository::class)]
-class UserRepositoryIntegrationTest extends TestCase {}
-class UserRepository {}
-
-?>
diff --git a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/adds_covers_class.php.inc b/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/adds_covers_class.php.inc
deleted file mode 100644
index db141e06..00000000
--- a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/adds_covers_class.php.inc
+++ /dev/null
@@ -1,22 +0,0 @@
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture;
-
-use PHPUnit\Framework\TestCase;
-
-class CalculatorTest extends TestCase {}
-class Calculator {}
-
-?>
------
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture;
-
-use PHPUnit\Framework\TestCase;
-
-#[\PHPUnit\Framework\Attributes\CoversClass(\Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture\Calculator::class)]
-class CalculatorTest extends TestCase {}
-class Calculator {}
-
-?>
diff --git a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/adds_covers_class_testcase.php.inc b/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/adds_covers_class_testcase.php.inc
deleted file mode 100644
index 03813b8f..00000000
--- a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/adds_covers_class_testcase.php.inc
+++ /dev/null
@@ -1,22 +0,0 @@
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture;
-
-use PHPUnit\Framework\TestCase;
-
-class CalculatorTestCase extends TestCase {}
-class Calculator {}
-
-?>
------
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture;
-
-use PHPUnit\Framework\TestCase;
-
-#[\PHPUnit\Framework\Attributes\CoversClass(\Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture\Calculator::class)]
-class CalculatorTestCase extends TestCase {}
-class Calculator {}
-
-?>
diff --git a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_abstract_class.php.inc b/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_abstract_class.php.inc
deleted file mode 100644
index 5e936917..00000000
--- a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_abstract_class.php.inc
+++ /dev/null
@@ -1,11 +0,0 @@
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture;
-
-use PHPUnit\Framework\TestCase;
-use PHPUnit\Framework\Attributes\CoversClass;
-
-class MyAbstractClassTest extends TestCase {}
-abstract class MyAbstractClass {}
-
-?>
diff --git a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_interfaces.php.inc b/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_interfaces.php.inc
deleted file mode 100644
index 861f1cfd..00000000
--- a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_interfaces.php.inc
+++ /dev/null
@@ -1,11 +0,0 @@
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture;
-
-use PHPUnit\Framework\TestCase;
-use PHPUnit\Framework\Attributes\CoversClass;
-
-class MyBusinessTest extends TestCase {}
-interface MyBusiness {}
-
-?>
diff --git a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_traits.php.inc b/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_traits.php.inc
deleted file mode 100644
index f192c318..00000000
--- a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_traits.php.inc
+++ /dev/null
@@ -1,11 +0,0 @@
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture;
-
-use PHPUnit\Framework\TestCase;
-use PHPUnit\Framework\Attributes\CoversClass;
-
-class MyTraitTest extends TestCase {}
-trait MyTrait {}
-
-?>
diff --git a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_when_already_added_covers_class.php.inc b/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_when_already_added_covers_class.php.inc
deleted file mode 100644
index e831b758..00000000
--- a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_when_already_added_covers_class.php.inc
+++ /dev/null
@@ -1,25 +0,0 @@
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture;
-
-use PHPUnit\Framework\TestCase;
-use PHPUnit\Framework\Attributes\CoversClass;
-
-#[CoversClass(Calculator::class)]
-class CalculatorTest extends TestCase {}
-class Calculator {}
-
-?>
------
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture;
-
-use PHPUnit\Framework\TestCase;
-use PHPUnit\Framework\Attributes\CoversClass;
-
-#[CoversClass(Calculator::class)]
-class CalculatorTest extends TestCase {}
-class Calculator {}
-
-?>
diff --git a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_when_already_added_covers_function.php.inc b/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_when_already_added_covers_function.php.inc
deleted file mode 100644
index c445d20b..00000000
--- a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_when_already_added_covers_function.php.inc
+++ /dev/null
@@ -1,25 +0,0 @@
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture;
-
-use PHPUnit\Framework\TestCase;
-use PHPUnit\Framework\Attributes\CoversFunction;
-
-#[CoversFunction('\trim')]
-class CalculatorTest extends TestCase {}
-class Calculator {}
-
-?>
------
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture;
-
-use PHPUnit\Framework\TestCase;
-use PHPUnit\Framework\Attributes\CoversFunction;
-
-#[CoversFunction('\trim')]
-class CalculatorTest extends TestCase {}
-class Calculator {}
-
-?>
diff --git a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_when_already_added_covers_nothing.php.inc b/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_when_already_added_covers_nothing.php.inc
deleted file mode 100644
index a4463636..00000000
--- a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_when_already_added_covers_nothing.php.inc
+++ /dev/null
@@ -1,25 +0,0 @@
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture;
-
-use PHPUnit\Framework\TestCase;
-use PHPUnit\Framework\Attributes\CoversNothing;
-
-#[CoversNothing]
-class CalculatorTest extends TestCase {}
-class Calculator {}
-
-?>
------
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture;
-
-use PHPUnit\Framework\TestCase;
-use PHPUnit\Framework\Attributes\CoversNothing;
-
-#[CoversNothing]
-class CalculatorTest extends TestCase {}
-class Calculator {}
-
-?>
diff --git a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_when_can_not_find_source_class.php.inc b/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_when_can_not_find_source_class.php.inc
deleted file mode 100644
index 02856d24..00000000
--- a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/Fixture/skips_when_can_not_find_source_class.php.inc
+++ /dev/null
@@ -1,27 +0,0 @@
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture\Abc {
-    use PHPUnit\Framework\TestCase;
-
-    class CalculatorTest extends TestCase {}
-}
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture\Xyz {
-    class Calculator {}
-}
-
-?>
------
-<?php
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture\Abc {
-    use PHPUnit\Framework\TestCase;
-
-    class CalculatorTest extends TestCase {}
-}
-
-namespace Utils\Rector\Tests\Rector\AddCoversClassAttributeRector\Fixture\Xyz {
-    class Calculator {}
-}
-
-?>
diff --git a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/config/configured_rule.php b/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/config/configured_rule.php
deleted file mode 100644
index ea5f3dd3..00000000
--- a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/config/configured_rule.php
+++ /dev/null
@@ -1,13 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-use Rector\Config\RectorConfig;
-use Rector\PHPUnit\CodeQuality\Rector\Class_\AddCoversClassAttributeRector;
-use Rector\PHPUnit\ValueObject\TestClassSuffixesConfig;
-
-return static function (RectorConfig $rectorConfig): void {
-    $rectorConfig->ruleWithConfiguration(AddCoversClassAttributeRector::class, [
-        new TestClassSuffixesConfig(['Test', 'TestCase', 'FunctionalTest', 'IntegrationTest']),
-    ]);
-};
diff --git a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/config/rule.php b/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/config/rule.php
deleted file mode 100644
index 3dabd2d4..00000000
--- a/rules-tests/CodeQuality/Rector/Class_/AddCoversClassAttributeRector/config/rule.php
+++ /dev/null
@@ -1,10 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-use Rector\Config\RectorConfig;
-use Rector\PHPUnit\CodeQuality\Rector\Class_\AddCoversClassAttributeRector;
-
-return static function (RectorConfig $rectorConfig): void {
-    $rectorConfig->rule(AddCoversClassAttributeRector::class);
-};
diff --git a/rules/CodeQuality/Rector/Class_/AddCoversClassAttributeRector.php b/rules/CodeQuality/Rector/Class_/AddCoversClassAttributeRector.php
index 6023eee4..61a9d17a 100644
--- a/rules/CodeQuality/Rector/Class_/AddCoversClassAttributeRector.php
+++ b/rules/CodeQuality/Rector/Class_/AddCoversClassAttributeRector.php
@@ -5,43 +5,20 @@
 namespace Rector\PHPUnit\CodeQuality\Rector\Class_;
 
 use PhpParser\Node;
-use PhpParser\Node\AttributeGroup;
 use PhpParser\Node\Stmt\Class_;
-use PHPStan\Reflection\ReflectionProvider;
+use Rector\Configuration\Deprecation\Contract\DeprecatedInterface;
 use Rector\Contract\Rector\ConfigurableRectorInterface;
-use Rector\Php80\NodeAnalyzer\PhpAttributeAnalyzer;
-use Rector\PhpAttribute\NodeFactory\PhpAttributeGroupFactory;
-use Rector\PHPUnit\NodeAnalyzer\TestsNodeAnalyzer;
+use Rector\Exception\ShouldNotHappenException;
 use Rector\PHPUnit\ValueObject\TestClassSuffixesConfig;
 use Rector\Rector\AbstractRector;
 use Symplify\RuleDocGenerator\ValueObject\CodeSample\ConfiguredCodeSample;
 use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
-use Webmozart\Assert\Assert;
-use function array_filter;
-use function array_merge;
-use function count;
-use function explode;
-use function implode;
-use function in_array;
-use function preg_replace;
-use function strtolower;
-use function trim;
 
-final class AddCoversClassAttributeRector extends AbstractRector implements ConfigurableRectorInterface
+/**
+ * @deprecated as very specific and assumes test + class colocation. Better use custom rule isntead.
+ */
+final class AddCoversClassAttributeRector extends AbstractRector implements ConfigurableRectorInterface, DeprecatedInterface
 {
-    /**
-     * @var string[]
-     */
-    private array $testClassSuffixes = ['Test', 'TestCase'];
-
-    public function __construct(
-        private readonly ReflectionProvider $reflectionProvider,
-        private readonly PhpAttributeGroupFactory $phpAttributeGroupFactory,
-        private readonly PhpAttributeAnalyzer $phpAttributeAnalyzer,
-        private readonly TestsNodeAnalyzer $testsNodeAnalyzer
-    ) {
-    }
-
     public function getRuleDefinition(): RuleDefinition
     {
         return new RuleDefinition(
@@ -93,38 +70,10 @@ public function getNodeTypes(): array
      */
     public function refactor(Node $node): ?Node
     {
-        $className = $this->getName($node);
-
-        if ($className === null) {
-            return null;
-        }
-
-        if (! $this->testsNodeAnalyzer->isInTestClass($node)) {
-            return null;
-        }
-
-        if (
-            $this->phpAttributeAnalyzer->hasPhpAttributes($node, [
-                'PHPUnit\\Framework\\Attributes\\CoversNothing',
-                'PHPUnit\\Framework\\Attributes\\CoversClass',
-                'PHPUnit\\Framework\\Attributes\\CoversFunction',
-            ])
-        ) {
-            return null;
-        }
-
-        $possibleTestClassNames = $this->resolveSourceClassNames($className);
-        $matchingTestClassName = $this->matchExistingClassName($possibleTestClassNames);
-
-        if (! is_string($matchingTestClassName)) {
-            return null;
-        }
-
-        $coversAttributeGroup = $this->createAttributeGroup('\\' . $matchingTestClassName);
-
-        $node->attrGroups = array_merge($node->attrGroups, [$coversAttributeGroup]);
-
-        return $node;
+        throw new ShouldNotHappenException(sprintf(
+            '"%s" rule is deprecated. As very opinionated and assumes test + class colocation. Better use custom rule instead.',
+            self::class
+        ));
     }
 
     /**
@@ -132,81 +81,5 @@ public function refactor(Node $node): ?Node
      */
     public function configure(array $configuration): void
     {
-        Assert::countBetween($configuration, 0, 1);
-
-        if (isset($configuration[0])) {
-            Assert::isInstanceOf($configuration[0], TestClassSuffixesConfig::class);
-            $this->testClassSuffixes = $configuration[0]->getSuffixes();
-        }
-    }
-
-    /**
-     * @return string[]
-     */
-    private function resolveSourceClassNames(string $className): array
-    {
-        $classNameParts = explode('\\', $className);
-        $partCount = count($classNameParts);
-
-        // Sort suffixes by length (longest first) to ensure more specific patterns match first
-        $sortedSuffixes = $this->testClassSuffixes;
-        usort($sortedSuffixes, static fn (string $a, string $b): int => strlen($b) <=> strlen($a));
-
-        $patterns = [];
-        foreach ($sortedSuffixes as $sortedSuffix) {
-            $patterns[] = '#' . preg_quote($sortedSuffix, '#') . '$#';
-        }
-
-        $classNameParts[$partCount - 1] = preg_replace($patterns, '', $classNameParts[$partCount - 1]);
-
-        $possibleTestClassNames = [implode('\\', $classNameParts)];
-
-        $partsWithoutTests = array_filter(
-            $classNameParts,
-            static fn (string|null $part): bool => $part === null
-                ? false
-                : ! in_array(strtolower($part), ['test', 'tests'], true)
-        );
-
-        $possibleTestClassNames[] = implode('\\', $partsWithoutTests);
-
-        return $possibleTestClassNames;
-    }
-
-    /**
-     * @param string[] $classNames
-     */
-    private function matchExistingClassName(array $classNames): ?string
-    {
-        foreach ($classNames as $className) {
-            if (! $this->reflectionProvider->hasClass($className)) {
-                continue;
-            }
-
-            $classReflection = $this->reflectionProvider->getClass($className);
-            if ($classReflection->isInterface()) {
-                continue;
-            }
-
-            if ($classReflection->isTrait()) {
-                continue;
-            }
-
-            if ($classReflection->isAbstract()) {
-                continue;
-            }
-
-            return $className;
-        }
-
-        return null;
-    }
-
-    private function createAttributeGroup(string $annotationValue): AttributeGroup
-    {
-        $attributeClass = 'PHPUnit\\Framework\\Attributes\\CoversClass';
-        $attributeValue = trim($annotationValue) . '::class';
-
-        return $this->phpAttributeGroupFactory->createFromClassWithItems($attributeClass, [$attributeValue]);
     }
 }