diff --git a/.gitattributes b/.gitattributes
index f9856b07..a32de845 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -10,6 +10,7 @@
 /.gitsplit.yml export-ignore
 /monorepo-builder.php export-ignore
 /CODE_OF_CONDUCT.md export-ignore
+/castor.php export-ignore
 /deptrac.yaml export-ignore
 /ecs.php export-ignore
 /infection.json export-ignore
diff --git a/.github/workflows/infection.yml b/.github/workflows/infection.yml
index cd32d9eb..cd6ed23e 100644
--- a/.github/workflows/infection.yml
+++ b/.github/workflows/infection.yml
@@ -1,4 +1,4 @@
-name: "Integrate"
+name: "Infection"
 
 on:
   push:
@@ -7,7 +7,7 @@ on:
 
 jobs:
   mutation_testing:
-    name: "5️⃣ Mutation Testing"
+    name: "0️⃣ Mutation Testing"
     runs-on: "ubuntu-latest"
     steps:
       - name: "Set up PHP"
@@ -15,13 +15,11 @@ jobs:
         with:
           php-version: "8.3"
           extensions: "json, mbstring, openssl, sqlite3, curl, uuid"
+          tools: castor
 
       - name: "Checkout code"
         uses: "actions/checkout@v4"
 
-      - name: "Fetch Git base reference"
-        run: "git fetch --depth=1 origin ${GITHUB_BASE_REF}"
-
       - name: "Install dependencies"
         uses: "ramsey/composer-install@v3"
         with:
@@ -29,4 +27,4 @@ jobs:
           composer-options: "--optimize-autoloader"
 
       - name: "Execute Infection"
-        run: "make ci-mu"
+        run: "castor infect"
diff --git a/.github/workflows/integrate.yml b/.github/workflows/integrate.yml
index beed9326..80a20b1a 100644
--- a/.github/workflows/integrate.yml
+++ b/.github/workflows/integrate.yml
@@ -30,17 +30,33 @@ jobs:
         uses: "shivammathur/setup-php@v2"
         with:
           php-version: "8.3"
+          extensions: "json, mbstring, openssl, sqlite3, curl, uuid"
+          tools: castor
 
       - name: "Checkout code"
         uses: "actions/checkout@v4"
 
+      - name: "Fetch Git base reference"
+        run: "git fetch --depth=1 origin ${GITHUB_BASE_REF}"
+
+      - name: "Validate Composer configuration"
+        run: "castor validate"
+
       - name: "Install dependencies"
         uses: "ramsey/composer-install@v3"
         with:
-          dependency-versions: "highest"
+          dependency-versions: "${{ matrix.dependencies }}"
+          composer-options: "--optimize-autoloader"
+
+      - name: "Cache dependencies"
+        uses: "actions/cache@v4"
+        id: "cache"
+        with:
+          path: "composer-cache"
+          key: "${{ runner.os }}-${{ hashFiles('**/composer.json') }}"
 
       - name: "Check source code for syntax errors"
-        run: "composer exec -- parallel-lint src/ tests/"
+        run: "castor lint"
 
   unit_tests:
     name: "2️⃣ Unit and functional tests"
@@ -63,6 +79,7 @@ jobs:
         with:
           php-version: "${{ matrix.php-version }}"
           extensions: "json, mbstring, openssl, sqlite3, curl, uuid"
+          tools: castor
           coverage: "xdebug"
 
       - name: "Checkout code"
@@ -75,7 +92,7 @@ jobs:
           composer-options: "--optimize-autoloader"
 
       - name: "Execute unit tests"
-        run: "make ci-cc"
+        run: "castor test --coverage-text"
 
   static_analysis:
     name: "3️⃣ Static Analysis"
@@ -89,13 +106,11 @@ jobs:
         with:
           php-version: "8.3"
           extensions: "json, mbstring, openssl, sqlite3, curl, uuid"
+          tools: castor
 
       - name: "Checkout code"
         uses: "actions/checkout@v4"
 
-      - name: "Validate Composer configuration"
-        run: "composer validate --strict"
-
       - name: "Install dependencies"
         uses: "ramsey/composer-install@v3"
         with:
@@ -103,7 +118,7 @@ jobs:
           composer-options: "--optimize-autoloader"
 
       - name: "Execute static analysis"
-        run: "make st"
+        run: "castor stan"
 
   coding_standards:
     name: "4️⃣ Coding Standards"
@@ -117,13 +132,40 @@ jobs:
         with:
           php-version: "8.3"
           extensions: "json, mbstring, openssl, sqlite3, curl, uuid"
+          tools: castor
 
       - name: "Checkout code"
         uses: "actions/checkout@v4"
 
+      - name: "Install dependencies"
+        uses: "ramsey/composer-install@v3"
+        with:
+          dependency-versions: "highest"
+          composer-options: "--optimize-autoloader"
+
       - name: "Check adherence to EditorConfig"
         uses: "greut/eclint-action@v0"
 
+      - name: "Check coding style"
+        run: "castor cs"
+
+  check_licenses:
+    name: "5️⃣ Check licenses"
+    needs:
+      - "byte_level"
+      - "syntax_errors"
+    runs-on: "ubuntu-latest"
+    steps:
+      - name: "Set up PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          php-version: "8.3"
+          extensions: "json, mbstring, openssl, sqlite3, curl, uuid"
+          tools: castor
+
+      - name: "Checkout code"
+        uses: "actions/checkout@v4"
+
       - name: "Install dependencies"
         uses: "ramsey/composer-install@v3"
         with:
@@ -131,7 +173,7 @@ jobs:
           composer-options: "--optimize-autoloader"
 
       - name: "Check coding style"
-        run: "make ci-cs"
+        run: "castor check-licenses"
 
   rector_checkstyle:
     name: "6️⃣ Rector Checkstyle"
@@ -145,14 +187,12 @@ jobs:
         with:
           php-version: "8.3"
           extensions: "json, mbstring, openssl, sqlite3, curl, uuid"
+          tools: castor
           coverage: "xdebug"
 
       - name: "Checkout code"
         uses: "actions/checkout@v4"
 
-      - name: "Fetch Git base reference"
-        run: "git fetch --depth=1 origin ${GITHUB_BASE_REF}"
-
       - name: "Install dependencies"
         uses: "ramsey/composer-install@v3"
         with:
@@ -160,7 +200,7 @@ jobs:
           composer-options: "--optimize-autoloader"
 
       - name: "Execute Rector"
-        run: "make rector"
+        run: "castor rector"
 
   exported_files:
     name: "7️⃣ Exported files"
diff --git a/.gitignore b/.gitignore
index 287a6d9e..277c2fc2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@ composer.lock
 vendor/
 src/Bundle/JoseFramework/var/
 infection.txt
+.castor.stub.php
diff --git a/castor.php b/castor.php
new file mode 100644
index 00000000..da1a11b6
--- /dev/null
+++ b/castor.php
@@ -0,0 +1,203 @@
+<?php
+
+declare(strict_types=1);
+
+use Castor\Attribute\AsTask;
+use function Castor\io;
+use function Castor\run;
+
+#[AsTask(description: 'Run mutation testing')]
+function infect(int $minMsi = 0, int $minCoveredMsi = 0, bool $ci = false): void
+{
+    io()->title('Running infection');
+    $nproc = run('nproc', quiet: true);
+    if (! $nproc->isSuccessful()) {
+        io()->error('Cannot determine the number of processors');
+        return;
+    }
+    $threads = (int) $nproc->getOutput();
+    $command = [
+        'php',
+        'vendor/bin/infection',
+        sprintf('--min-msi=%s', $minMsi),
+        sprintf('--min-covered-msi=%s', $minCoveredMsi),
+        sprintf('--threads=%s', $threads),
+    ];
+    if ($ci) {
+        $command[] = '--logger-github';
+        $command[] = '-s';
+    }
+    $environment = [
+        'XDEBUG_MODE' => 'coverage',
+    ];
+    run($command, environment: $environment);
+}
+
+#[AsTask(description: 'Run tests')]
+function test(bool $coverageHtml = false, bool $coverageText = false, null|string $group = null): void
+{
+    io()->title('Running tests');
+    $command = ['php', 'vendor/bin/phpunit', '--color'];
+    $environment = [
+        'XDEBUG_MODE' => 'off',
+    ];
+    if ($coverageHtml) {
+        $command[] = '--coverage-html=build/coverage';
+        $environment['XDEBUG_MODE'] = 'coverage';
+    }
+    if ($coverageText) {
+        $command[] = '--coverage-text';
+        $environment['XDEBUG_MODE'] = 'coverage';
+    }
+    if ($group !== null) {
+        $command[] = sprintf('--group=%s', $group);
+    }
+    run($command, environment: $environment);
+}
+
+#[AsTask(description: 'Coding standards check')]
+function cs(
+    #[\Castor\Attribute\AsOption(description: 'Fix issues if possible')]
+    bool $fix = false,
+    #[\Castor\Attribute\AsOption(description: 'Clear cache')]
+    bool $clearCache = false
+): void {
+    io()->title('Running coding standards check');
+    $command = ['php', 'vendor/bin/ecs', 'check'];
+    $environment = [
+        'XDEBUG_MODE' => 'off',
+    ];
+    if ($fix) {
+        $command[] = '--fix';
+    }
+    if ($clearCache) {
+        $command[] = '--clear-cache';
+    }
+    run($command, environment: $environment);
+}
+
+#[AsTask(description: 'Running PHPStan')]
+function stan(): void
+{
+    io()->title('Running PHPStan');
+    $command = ['php', 'vendor/bin/phpstan', 'analyse'];
+    $environment = [
+        'XDEBUG_MODE' => 'off',
+    ];
+    run($command, environment: $environment);
+}
+
+#[AsTask(description: 'Validate Composer configuration')]
+function validate(): void
+{
+    io()->title('Validating Composer configuration');
+    $command = ['composer', 'validate', '--strict'];
+    $environment = [
+        'XDEBUG_MODE' => 'off',
+    ];
+    run($command, environment: $environment);
+
+    $command = ['composer', 'dump-autoload', '--optimize', '--strict-psr'];
+    run($command, environment: $environment);
+}
+
+/**
+ * @param array<string> $allowedLicenses
+ */
+#[AsTask(description: 'Check licenses')]
+function checkLicenses(
+    array $allowedLicenses = ['Apache-2.0', 'BSD-2-Clause', 'BSD-3-Clause', 'ISC', 'MIT', 'MPL-2.0', 'OSL-3.0']
+): void {
+    io()->title('Checking licenses');
+    $allowedExceptions = [];
+    $command = ['composer', 'licenses', '-f', 'json'];
+    $environment = [
+        'XDEBUG_MODE' => 'off',
+    ];
+    $result = run($command, environment: $environment, quiet: true);
+    if (! $result->isSuccessful()) {
+        io()->error('Cannot determine licenses');
+        exit(1);
+    }
+    $licenses = json_decode($result->getOutput(), true);
+    $disallowed = array_filter(
+        $licenses['dependencies'],
+        static fn (array $info, $name) => ! in_array($name, $allowedExceptions, true)
+            && count(array_diff($info['license'], $allowedLicenses)) === 1,
+        \ARRAY_FILTER_USE_BOTH
+    );
+    $allowed = array_filter(
+        $licenses['dependencies'],
+        static fn (array $info, $name) => in_array($name, $allowedExceptions, true)
+            || count(array_diff($info['license'], $allowedLicenses)) === 0,
+        \ARRAY_FILTER_USE_BOTH
+    );
+    if (count($disallowed) > 0) {
+        io()
+            ->table(
+                ['Package', 'License'],
+                array_map(
+                    static fn ($name, $info) => [$name, implode(', ', $info['license'])],
+                    array_keys($disallowed),
+                    $disallowed
+                )
+            );
+        io()
+            ->error('Disallowed licenses found');
+        exit(1);
+    }
+    io()
+        ->table(
+            ['Package', 'License'],
+            array_map(
+                static fn ($name, $info) => [$name, implode(', ', $info['license'])],
+                array_keys($allowed),
+                $allowed
+            )
+        );
+    io()
+        ->success('All licenses are allowed');
+}
+
+#[AsTask(description: 'Run Rector')]
+function rector(
+    #[\Castor\Attribute\AsOption(description: 'Fix issues if possible')]
+    bool $fix = false,
+    #[\Castor\Attribute\AsOption(description: 'Clear cache')]
+    bool $clearCache = false
+): void {
+    io()->title('Running Rector');
+    $command = ['php', 'vendor/bin/rector', 'process', '--ansi'];
+    if (! $fix) {
+        $command[] = '--dry-run';
+    }
+    if ($clearCache) {
+        $command[] = '--clear-cache';
+    }
+    $environment = [
+        'XDEBUG_MODE' => 'off',
+    ];
+    run($command, environment: $environment);
+}
+
+#[AsTask(description: 'Run Rector')]
+function deptrac(): void
+{
+    io()->title('Running Rector');
+    $command = ['php', 'vendor/bin/deptrac', 'analyse', '--fail-on-uncovered', '--no-cache'];
+    $environment = [
+        'XDEBUG_MODE' => 'off',
+    ];
+    run($command, environment: $environment);
+}
+
+#[AsTask(description: 'Run Linter')]
+function lint(): void
+{
+    io()->title('Running Linter');
+    $command = ['composer', 'exec', '--', 'parallel-lint', __DIR__ . '/src/', __DIR__ . '/tests/'];
+    $environment = [
+        'XDEBUG_MODE' => 'off',
+    ];
+    run($command, environment: $environment);
+}
diff --git a/ecs.php b/ecs.php
index c0440103..40e74a0d 100644
--- a/ecs.php
+++ b/ecs.php
@@ -90,11 +90,6 @@
 
     $config->skip([PhpUnitTestClassRequiresCoversFixer::class]);
     $config->parallel();
-    $config->paths([
-        __DIR__ . '/performance',
-        __DIR__ . '/src',
-        __DIR__ . '/tests',
-        __DIR__ . '/ecs.php',
-        __DIR__ . '/rector.php',
-    ]);
+    $config->paths([__DIR__]);
+    $config->skip([__DIR__ . '/.github', __DIR__ . '/.castor.stub.php', __DIR__ . '/var', __DIR__ . '/vendor']);
 };
diff --git a/rector.php b/rector.php
index 0f5ae450..c6bc2810 100644
--- a/rector.php
+++ b/rector.php
@@ -5,18 +5,15 @@
 use Rector\Config\RectorConfig;
 use Rector\Doctrine\Set\DoctrineSetList;
 use Rector\PHPUnit\CodeQuality\Rector\Class_\PreferPHPUnitThisCallRector;
-use Rector\PHPUnit\Set\PHPUnitLevelSetList;
 use Rector\PHPUnit\Set\PHPUnitSetList;
 use Rector\Set\ValueObject\LevelSetList;
 use Rector\Set\ValueObject\SetList;
-use Rector\Symfony\Set\SymfonyLevelSetList;
 use Rector\Symfony\Set\SymfonySetList;
 use Rector\ValueObject\PhpVersion;
 
 return static function (RectorConfig $config): void {
     $config->import(SetList::DEAD_CODE);
     $config->import(LevelSetList::UP_TO_PHP_83);
-    //$config->import(SymfonyLevelSetList::UP_TO_SYMFONY_64);
     $config->import(SymfonySetList::SYMFONY_64);
     $config->import(SymfonySetList::SYMFONY_50_TYPES);
     $config->import(SymfonySetList::SYMFONY_52_VALIDATOR_ATTRIBUTES);
@@ -28,7 +25,6 @@
     $config->import(PHPUnitSetList::PHPUNIT_CODE_QUALITY);
     $config->import(PHPUnitSetList::ANNOTATIONS_TO_ATTRIBUTES);
     $config->import(PHPUnitSetList::PHPUNIT_100);
-    //$config->import(PHPUnitLevelSetList::UP_TO_PHPUNIT_100);
     $config->paths([
         __DIR__ . '/ecs.php',
         __DIR__ . '/rector.php',
diff --git a/src/Library/Checker/AlgorithmChecker.php b/src/Library/Checker/AlgorithmChecker.php
index 20afadee..23cb606a 100644
--- a/src/Library/Checker/AlgorithmChecker.php
+++ b/src/Library/Checker/AlgorithmChecker.php
@@ -9,8 +9,9 @@
 use function is_string;
 
 /**
- * This class is a header parameter checker. When the "alg" header parameter is present, it will check if the value is
- * within the allowed ones.
+ * AlgorithmChecker class.
+ *
+ * This class implements the HeaderChecker interface and is responsible for checking the "alg" header in a token.
  */
 final readonly class AlgorithmChecker implements HeaderChecker
 {
diff --git a/src/Library/Checker/AudienceChecker.php b/src/Library/Checker/AudienceChecker.php
index 3d608500..e7396a56 100644
--- a/src/Library/Checker/AudienceChecker.php
+++ b/src/Library/Checker/AudienceChecker.php
@@ -10,8 +10,7 @@
 use function is_string;
 
 /**
- * This class is a header parameter and claim checker. When the "aud" header parameter or claim is present, it will
- * check if the value is within the allowed ones.
+ * Represents a class that checks the audience claim and header in a JWT token.
  */
 final readonly class AudienceChecker implements ClaimChecker, HeaderChecker
 {
diff --git a/src/Library/Checker/CallableChecker.php b/src/Library/Checker/CallableChecker.php
index ceb0020f..ff5212a0 100644
--- a/src/Library/Checker/CallableChecker.php
+++ b/src/Library/Checker/CallableChecker.php
@@ -10,6 +10,7 @@
 use function is_callable;
 
 /**
+ * This class is responsible for checking claims and headers using a callable function.
  * @see \Jose\Tests\Component\Checker\CallableCheckerTest
  */
 final class CallableChecker implements ClaimChecker, HeaderChecker
diff --git a/src/Library/Checker/ClaimChecker.php b/src/Library/Checker/ClaimChecker.php
index 771f6d3f..3f97a1f3 100644
--- a/src/Library/Checker/ClaimChecker.php
+++ b/src/Library/Checker/ClaimChecker.php
@@ -4,16 +4,19 @@
 
 namespace Jose\Component\Checker;
 
+/**
+ * Represents a claim checker interface.
+ * Claim checkers are responsible for validating claims on a token.
+ */
 interface ClaimChecker
 {
     /**
-     * When the token has the applicable claim, the value is checked. If for some reason the value is not valid, an
-     * InvalidClaimException must be thrown.
+     * Checks if the given value matches the claim.
      */
     public function checkClaim(mixed $value): void;
 
     /**
-     * The method returns the claim to be checked.
+     * Returns the supported claim.
      */
     public function supportedClaim(): string;
 }
diff --git a/src/Library/Checker/ClaimCheckerManager.php b/src/Library/Checker/ClaimCheckerManager.php
index 64f0c405..330a471e 100644
--- a/src/Library/Checker/ClaimCheckerManager.php
+++ b/src/Library/Checker/ClaimCheckerManager.php
@@ -8,8 +8,7 @@
 use function count;
 
 /**
- * This manager handles as many claim checkers as needed.
- *
+ * This class manages claim checkers and performs claim checks.
  * @see \Jose\Tests\Component\Checker\ClaimCheckerManagerTest
  */
 class ClaimCheckerManager
diff --git a/src/Library/Checker/ClaimCheckerManagerFactory.php b/src/Library/Checker/ClaimCheckerManagerFactory.php
index f6c45ac9..8e994d6f 100644
--- a/src/Library/Checker/ClaimCheckerManagerFactory.php
+++ b/src/Library/Checker/ClaimCheckerManagerFactory.php
@@ -7,6 +7,7 @@
 use InvalidArgumentException;
 
 /**
+ * This class is responsible for creating and managing claim checkers.
  * @see \Jose\Tests\Component\Checker\ClaimCheckerManagerFactoryTest
  */
 class ClaimCheckerManagerFactory
diff --git a/src/Library/Checker/ClaimExceptionInterface.php b/src/Library/Checker/ClaimExceptionInterface.php
index 47971d03..5101a3ad 100644
--- a/src/Library/Checker/ClaimExceptionInterface.php
+++ b/src/Library/Checker/ClaimExceptionInterface.php
@@ -7,7 +7,10 @@
 use Throwable;
 
 /**
- * Exceptions thrown by this component.
+ * Represents an interface for claim exceptions.
+ *
+ * This interface extends from the Throwable interface, allowing
+ * the claim exceptions to be thrown and caught like any other exception.
  */
 interface ClaimExceptionInterface extends Throwable
 {
diff --git a/src/Library/Checker/ExpirationTimeChecker.php b/src/Library/Checker/ExpirationTimeChecker.php
index da2b192f..9eeaede7 100644
--- a/src/Library/Checker/ExpirationTimeChecker.php
+++ b/src/Library/Checker/ExpirationTimeChecker.php
@@ -10,7 +10,9 @@
 use function is_int;
 
 /**
- * This class is a claim checker. When the "exp" is present, it will compare the value with the current timestamp.
+ * This class is a claim checker.
+ *
+ * When the "exp" is present, it will compare the value with the current timestamp.
  */
 final readonly class ExpirationTimeChecker implements ClaimChecker, HeaderChecker
 {
diff --git a/src/Library/Checker/HeaderChecker.php b/src/Library/Checker/HeaderChecker.php
index 0856235b..daffe765 100644
--- a/src/Library/Checker/HeaderChecker.php
+++ b/src/Library/Checker/HeaderChecker.php
@@ -4,21 +4,25 @@
 
 namespace Jose\Component\Checker;
 
+/**
+ * Interface HeaderChecker
+ *
+ * This interface defines the contract for a header checker.
+ */
 interface HeaderChecker
 {
     /**
-     * This method is called when the header parameter is present. If for some reason the value is not valid, an
-     * InvalidHeaderException must be thrown.
+     * Checks if the given value matches the header parameter of the token.
      */
     public function checkHeader(mixed $value): void;
 
     /**
-     * The method returns the header parameter to be checked.
+     * Retrieves the supported header for the token.
      */
     public function supportedHeader(): string;
 
     /**
-     * When true, the header parameter to be checked MUST be set in the protected header of the token.
+     * Returns a boolean value indicating whether the requested resource can only be accessed with a protected header.
      */
     public function protectedHeaderOnly(): bool;
 }
diff --git a/src/Library/Checker/HeaderCheckerManager.php b/src/Library/Checker/HeaderCheckerManager.php
index 1b05be6e..427c9b85 100644
--- a/src/Library/Checker/HeaderCheckerManager.php
+++ b/src/Library/Checker/HeaderCheckerManager.php
@@ -10,6 +10,12 @@
 use function count;
 use function is_array;
 
+/**
+ * This class is a factory to create Header Checker Managers.
+ *
+ * It allows to add header parameter checkers and token type supports.
+ * The factory is responsible to create a Header Checker Manager with the header parameter checkers found based
+ */
 class HeaderCheckerManager
 {
     /**
diff --git a/src/Library/Checker/HeaderCheckerManagerFactory.php b/src/Library/Checker/HeaderCheckerManagerFactory.php
index c514050d..17339639 100644
--- a/src/Library/Checker/HeaderCheckerManagerFactory.php
+++ b/src/Library/Checker/HeaderCheckerManagerFactory.php
@@ -7,6 +7,9 @@
 use InvalidArgumentException;
 
 /**
+ * This class is a factory to create Header Checker Managers. It allows to add header parameter checkers and token type
+ * supports. The factory is responsible to create a Header Checker Manager with the header parameter checkers found based
+ * on the alias. If the alias is not supported, an InvalidArgumentException is thrown.
  * @see \Jose\Tests\Component\Checker\HeaderCheckerManagerFactoryTest
  */
 class HeaderCheckerManagerFactory
diff --git a/src/Library/Checker/InvalidHeaderException.php b/src/Library/Checker/InvalidHeaderException.php
index ae3e1d8b..9e70590d 100644
--- a/src/Library/Checker/InvalidHeaderException.php
+++ b/src/Library/Checker/InvalidHeaderException.php
@@ -7,7 +7,7 @@
 use Exception;
 
 /**
- * This exception is thrown by header parameter checkers when a header parameter check failed.
+ * This exception is thrown by header checkers when a header check failed.
  */
 class InvalidHeaderException extends Exception
 {
diff --git a/src/Library/Checker/IsEqualChecker.php b/src/Library/Checker/IsEqualChecker.php
index 7709aa0d..c39ee9db 100644
--- a/src/Library/Checker/IsEqualChecker.php
+++ b/src/Library/Checker/IsEqualChecker.php
@@ -7,6 +7,7 @@
 use Override;
 
 /**
+ * This class implements a claim and header checker that checks if the value is equal to the expected value.
  * @see \Jose\Tests\Component\Checker\IsEqualCheckerTest
  */
 final readonly class IsEqualChecker implements ClaimChecker, HeaderChecker
diff --git a/src/Library/Checker/IssuerChecker.php b/src/Library/Checker/IssuerChecker.php
index e4651b4c..b5db0b98 100644
--- a/src/Library/Checker/IssuerChecker.php
+++ b/src/Library/Checker/IssuerChecker.php
@@ -9,8 +9,9 @@
 use function is_string;
 
 /**
- * This class is a header parameter and claim checker. When the "iss" header parameter or claim is present, it will
- * check if the value is within the allowed ones.
+ * This class is a header parameter and claim checker.
+ *
+ * When the "iss" header parameter or claim is present, it will check if the value is within the allowed ones.
  */
 final readonly class IssuerChecker implements ClaimChecker, HeaderChecker
 {
diff --git a/src/Library/Checker/MissingMandatoryClaimException.php b/src/Library/Checker/MissingMandatoryClaimException.php
index f58bb2cb..85c00a83 100644
--- a/src/Library/Checker/MissingMandatoryClaimException.php
+++ b/src/Library/Checker/MissingMandatoryClaimException.php
@@ -6,6 +6,9 @@
 
 use Exception;
 
+/**
+ * This exception is thrown by claim checkers when a mandatory claim is missing.
+ */
 class MissingMandatoryClaimException extends Exception implements ClaimExceptionInterface
 {
     /**
diff --git a/src/Library/Checker/TokenTypeSupport.php b/src/Library/Checker/TokenTypeSupport.php
index 96b179b9..e280c9ed 100644
--- a/src/Library/Checker/TokenTypeSupport.php
+++ b/src/Library/Checker/TokenTypeSupport.php
@@ -6,6 +6,13 @@
 
 use Jose\Component\Core\JWT;
 
+/**
+ * This interface is used to support token types.
+ *
+ * The token type is a way to define the format of the token.
+ * For example, the JWE token type is used to define the format of the token when it is encrypted.
+ * The JWS token type is used to define the format of the token when it is signed.
+ */
 interface TokenTypeSupport
 {
     /**