add readme and license headers

.doctor-rst.yaml

@@ -0,0 +1,96 @@
+rules:
+    american_english: ~
+    argument_variable_must_match_type: ~
+    avoid_repetetive_words: ~
+#    be_kind_to_newcomers: ~
+    blank_line_after_anchor: ~
+#    blank_line_after_colon: ~
+    blank_line_after_directive: ~
+#    blank_line_after_filepath_in_code_block: ~
+#    blank_line_after_filepath_in_php_code_block: ~
+#    blank_line_after_filepath_in_twig_code_block: ~
+#    blank_line_after_filepath_in_xml_code_block: ~
+#    blank_line_after_filepath_in_yaml_code_block: ~
+    blank_line_before_directive: ~
+#    composer_dev_option_at_the_end: ~
+    composer_dev_option_not_at_the_end: ~
+    correct_code_block_directive_based_on_the_content: ~
+    deprecated_directive_major_version:
+        major_version: 2
+    deprecated_directive_min_version:
+        min_version: '2.0'
+    deprecated_directive_should_have_version: ~
+    ensure_bash_prompt_before_composer_command: ~
+    ensure_exactly_one_space_before_directive_type: ~
+    ensure_exactly_one_space_between_link_definition_and_link: ~
+    ensure_link_definition_contains_valid_url: ~
+    ensure_order_of_code_blocks_in_configuration_block: ~
+    extend_abstract_admin: ~
+    extend_abstract_controller: ~
+#    extend_controller: ~
+    extension_xlf_instead_of_xliff: ~
+#    filename_uses_dashes_only: ~
+#    filename_uses_underscores_only: ~
+    final_admin_classes: ~
+    final_admin_extension_classes: ~
+    forbidden_directives:
+        directives:
+            - '.. index::'
+    indention: ~
+    kernel_instead_of_app_kernel: ~
+#    line_length: ~
+    lowercase_as_in_use_statements: ~
+    max_blank_lines:
+        max: 2
+    max_colons: ~
+    no_admin_yaml: ~
+    no_app_bundle: ~
+    no_app_console: ~
+#    no_bash_prompt: ~
+    no_blank_line_after_filepath_in_code_block: ~
+    no_blank_line_after_filepath_in_php_code_block: ~
+    no_blank_line_after_filepath_in_twig_code_block: ~
+    no_blank_line_after_filepath_in_xml_code_block: ~
+    no_blank_line_after_filepath_in_yaml_code_block: ~
+    no_brackets_in_method_directive: ~
+    no_composer_phar: ~
+    no_composer_req: ~
+    no_config_yaml: ~
+#    no_contraction: ~
+    no_directive_after_shorthand: ~
+    no_explicit_use_of_code_block_php: ~
+    no_inheritdoc_in_code_examples: ~
+    no_merge_conflict: ~
+    no_namespace_after_use_statements: ~
+    no_php_open_tag_in_code_block_php_directive: ~
+#    no_php_prefix_before_bin_console: ~
+#    no_php_prefix_before_composer: ~
+#    no_space_before_self_xml_closing_tag: ~
+    only_backslashes_in_namespace_in_php_code_block: ~
+    only_backslashes_in_use_statements_in_php_code_block: ~
+    ordered_use_statements: ~
+#    php_open_tag_in_code_block_php_directive: ~
+    php_prefix_before_bin_console: ~
+    replace_code_block_types: ~
+    replacement: ~
+    short_array_syntax: ~
+#    space_before_self_xml_closing_tag: ~
+    space_between_label_and_link_in_doc: ~
+    space_between_label_and_link_in_ref: ~
+    string_replacement: ~
+    title_underline_length_must_match_title_length: ~
+    typo: ~
+    unused_links: ~
+    use_deprecated_directive_instead_of_versionadded: ~
+    use_https_xsd_urls: ~
+#    use_named_constructor_without_new_keyword_rule: ~
+    valid_inline_highlighted_namespaces: ~
+    valid_use_statements: ~
+    versionadded_directive_major_version:
+        major_version: 2
+    versionadded_directive_min_version:
+        min_version: '2.0'
+    versionadded_directive_should_have_version: ~
+    yaml_instead_of_yml_suffix: ~
+    yarn_dev_option_at_the_end: ~
+#    yarn_dev_option_not_at_the_end: ~

.php-cs-fixer.dist.php

@@ -1,13 +1,54 @@
 <?php
 
-$finder = (new PhpCsFixer\Finder())
-    ->in('src')
-    ->exclude(['var', 'vendor'])
-;
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+if (!file_exists(__DIR__.'/src')) {
+    exit(0);
+}
+
+$fileHeaderParts = [
+    <<<'EOF'
+        This file is part of the Symfony package.
+
+        (c) Fabien Potencier <fabien@symfony.com>
+
+        EOF,
+    <<<'EOF'
+
+        For the full copyright and license information, please view the LICENSE
+        file that was distributed with this source code.
+        EOF,
+];
 
 return (new PhpCsFixer\Config())
+    // @see https://github.com/PHP-CS-Fixer/PHP-CS-Fixer/pull/7777
+    ->setParallelConfig(PhpCsFixer\Runner\Parallel\ParallelConfigFactory::detect())
     ->setRules([
+        '@PHP71Migration' => true,
+        '@PHPUnit75Migration:risky' => true,
         '@Symfony' => true,
+        '@Symfony:risky' => true,
+        'protected_to_private' => false,
+        'declare_strict_types' => true,
+        'header_comment' => [
+            'header' => implode('', $fileHeaderParts),
+        ],
     ])
-    ->setFinder($finder)
+    ->setRiskyAllowed(true)
+    ->setFinder(
+        (new PhpCsFixer\Finder())
+            ->in(__DIR__.'/src')
+            ->append([__FILE__])
+            ->notPath('#/Fixtures/#')
+    )
+    ->setCacheFile('.php-cs-fixer.cache')
 ;

CONTRIBUTING.md

@@ -0,0 +1,26 @@
+Contributing
+------------
+
+Symfony is an open source, community-driven project.
+
+If you'd like to contribute, please read the following documents:
+
+* [Reviewing issues/pull requests][0]
+* [Reporting a Bug][1]
+* [Submitting a Patch][2]
+* [Symfony Core Team][3]
+* [Security Issues][4]
+* [Running Symfony Tests][5]
+* [Our Backwards Compatibility Promise][6]
+* [Coding Standards][7]
+* [Conventions][8]
+
+[0]: https://symfony.com/doc/current/contributing/community/reviews.html
+[1]: https://symfony.com/doc/current/contributing/code/bugs.html
+[2]: https://symfony.com/doc/current/contributing/code/patches.html
+[3]: https://symfony.com/doc/current/contributing/code/core_team.html
+[4]: https://symfony.com/doc/current/contributing/code/security.html
+[5]: https://symfony.com/doc/current/contributing/code/tests.html
+[6]: https://symfony.com/doc/current/contributing/code/bc.html
+[7]: https://symfony.com/doc/current/contributing/code/standards.html
+[8]: https://symfony.com/doc/current/contributing/code/conventions.html

README.md

@@ -0,0 +1,20 @@
+<p align="center"><a href="https://symfony.com" target="_blank">
+    <img src="https://symfony.com/logos/symfony_dynamic_01.svg" alt="Symfony Logo">
+</a></p>
+
+<h3 align="center">
+    Symfony AI
+</h3>
+
+Symfony AI is a set of packages that integrate AI capabilities into PHP applications.
+
+## Sponsor
+
+Help Symfony by [sponsoring][2] its development!
+
+## Contributing
+
+Thank you for considering contributing to Symfony AI! You can find the [contribution guide here](CONTRIBUTING.md).
+
+[1]: https://symfony.com/backers
+[2]: https://symfony.com/sponsor

src/mcp-sdk/README.md

@@ -1,119 +1,26 @@
-# Model Context Protocol PHP SDK [WIP]
+# Model Context Protocol PHP SDK
 
 Model Context Protocol SDK for Client and Server applications in PHP.
-**Currently only support Tool Calls as Server via Server-Sent Events (SSE) and STDIO.**
-
-See [Demo App](https://github.com/php-llm/mcp-demo) for a working example and [MCP Bundle](https://github.com/php-llm/mcp-bundle) for Symfony integration.
 
 ## Installation
 
 ```bash
-composer require php-llm/mcp-sdk
+composer require symfony/mcp-sdk
 ```
 
-## Usage with Symfony
+This is a low level SDK that implements the [Model Context Protocol](https://modelcontextprotocol.io/)
+(MCP). The protocol is used by LLM model to build "plugins" and give them extra
+context. Example the logged in users' latest order.
 
-Server integration points for are tailored to Symfony Console and HttpFoundation (Laravel compatible).
+**This repository is a READ-ONLY sub-tree split**. See
+https://github.com/symfony/ai to create issues or submit pull requests.
 
-### Console Command for STDIO Server
+## Resources
 
-```php
-namespace App\Command;
+-   [Documentation](doc/index.rst)
+-   [Report issues](https://github.com/symfony/ai/issues) and
+    [send Pull Requests](https://github.com/symfony/ai/pulls)
+    in the [main Symfony AI repository](https://github.com/symfony/ai)
 
-use PhpLlm\McpSdk\Server;
-use PhpLlm\McpSdk\Server\Transport\Stdio\SymfonyConsoleTransport;
-use Symfony\Component\Console\Attribute\AsCommand;
-use Symfony\Component\Console\Command\Command;
-use Symfony\Component\Console\Input\InputInterface;
-use Symfony\Component\Console\Output\OutputInterface;
-
-#[AsCommand('mcp', 'Starts an MCP server')]
-final class McpCommand extends Command
-{
-    public function __construct(
-        private readonly Server $server,
-    ) {
-        parent::__construct();
-    }
-
-    protected function execute(InputInterface $input, OutputInterface $output): int
-    {
-        $this->server->connect(
-            new SymfonyConsoleTransport($input, $output)
-        );
-
-        return Command::SUCCESS;
-    }
-}
-```
-
-### Controller for Server-Sent Events Server
-
-```php
-namespace App\Controller;
-
-use PhpLlm\McpSdk\Server;
-use PhpLlm\McpSdk\Server\Transport\Sse\Store\CachePoolStore;
-use PhpLlm\McpSdk\Server\Transport\Sse\StreamTransport;
-use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpFoundation\Response;
-use Symfony\Component\HttpFoundation\StreamedResponse;
-use Symfony\Component\HttpKernel\Attribute\AsController;
-use Symfony\Component\Routing\Attribute\Route;
-use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
-use Symfony\Component\Uid\Uuid;
-
-#[AsController]
-#[Route('/mcp', name: 'mcp_')]
-final readonly class McpController
-{
-    public function __construct(
-        private Server $server,
-        private CachePoolStore $store,
-        private UrlGeneratorInterface $urlGenerator,
-    ) {
-    }
-
-    #[Route('/sse', name: 'sse', methods: ['GET'])]
-    public function sse(): StreamedResponse
-    {
-        $id = Uuid::v4();
-        $endpoint = $this->urlGenerator->generate('mcp_messages', ['id' => $id], UrlGeneratorInterface::ABSOLUTE_URL);
-        $transport = new StreamTransport($endpoint, $this->store, $id);
-
-        return new StreamedResponse(fn() => $this->server->connect($transport), headers: [
-            'Content-Type' => 'text/event-stream',
-            'Cache-Control' => 'no-cache',
-            'X-Accel-Buffering' => 'no',
-        ]);
-    }
-
-    #[Route('/messages/{id}', name: 'messages', methods: ['POST'])]
-    public function messages(Request $request, Uuid $id): Response
-    {
-        $this->store->push($id, $request->getContent());
-
-        return new Response();
-    }
-}
-```
-
-### Exposing Tools
-
-Under the hood the SDK uses [LLM Chain](https://github.com/php-llm/llm-chain)'s `ToolBox` to register, analyze and
-execute tools. In combination with its [Symfony Bundle](https://github.com/php-llm/llm-chain-bundle) you can expose
-tools with `#[AsTool]` attribute.
-
-```php
-use PhpLlm\LlmChain\ToolBox\Attribute\AsTool;
-
-#[AsTool('company_name', 'Provides the name of your company')]
-final class CompanyName
-{
-    public function __invoke(): string
-    {
-        return 'ACME Corp.'
-    }
-}
-```
-See [LLM Chain Documentation](https://github.com/php-llm/llm-chain?tab=readme-ov-file#tools) for more information.
+[1]: https://symfony.com/backers
+[3]: https://symfony.com/sponsor

src/mcp-sdk/composer.json

@@ -1,5 +1,5 @@
 {
-    "name": "php-llm/mcp-sdk",
+    "name": "symfony/mcp-sdk",
     "type": "library",
     "description": "Model Context Protocol SDK for Client and Server applications in PHP",
     "license": "MIT",

src/mcp-sdk/doc/index.rst

@@ -0,0 +1,32 @@
+Model Context Protocol SDK
+==========================
+
+Symfony AI MCP SDK is the low level library that enables communication between
+a PHP application and an LLM model.
+
+Installation
+------------
+
+Install the bundle using Composer:
+
+.. code-block:: terminal
+
+    $ composer require symfony/mcp-sdk
+
+Usage
+-----
+
+The `Model Context Protocol`_ is built on top of JSON-RPC. There two types of
+messages. A Notification and Request. The Notification is just a status update
+that something has happened. There is never a response to a Notification. A Request
+is a message that expects a response. There are 3 concepts that you may request.
+These are::
+
+1. **Resources**: File-like data that can be read by clients (like API responses or file contents)
+1. **Tools**: Functions that can be called by the LLM (with user approval)
+1. **Prompts**: Pre-written templates that help users accomplish specific tasks
+
+The SDK comes with NotificationHandlers and RequestHandlers which are expected
+to be wired up in your application.
+
+.. _`Model Context Protocol`: https://modelcontextprotocol.io/

src/mcp-sdk/examples/cli/index.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 require __DIR__.'/vendor/autoload.php';
 
 use Symfony\Component\Console as SymfonyConsole;

src/mcp-sdk/examples/cli/src/Builder.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace App;
 
 use PhpLlm\McpSdk\Capability\PromptChain;

src/mcp-sdk/examples/cli/src/ExamplePrompt.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace App;
 
 use PhpLlm\McpSdk\Capability\Prompt\MetadataInterface;
@@ -18,7 +29,7 @@ class ExamplePrompt implements MetadataInterface, PromptGetterInterface
             $this->getDescription(),
             [new PromptGetResultMessages(
                 'user',
-                sprintf('Hello %s', $firstName ?? 'World')
+                \sprintf('Hello %s', $firstName ?? 'World')
             )]
         );
     }

src/mcp-sdk/examples/cli/src/ExampleResource.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace App;
 
 use PhpLlm\McpSdk\Capability\Resource\MetadataInterface;

src/mcp-sdk/examples/cli/src/ExampleTool.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace App;
 
 use PhpLlm\McpSdk\Capability\Tool\MetadataInterface;

src/mcp-sdk/src/Capability/Prompt/CollectionInterface.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Prompt;
 
 interface CollectionInterface

src/mcp-sdk/src/Capability/Prompt/IdentifierInterface.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Prompt;
 
 interface IdentifierInterface

src/mcp-sdk/src/Capability/Prompt/MetadataInterface.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Prompt;
 
 interface MetadataInterface extends IdentifierInterface

src/mcp-sdk/src/Capability/Prompt/PromptGet.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Prompt;
 
 final readonly class PromptGet

src/mcp-sdk/src/Capability/Prompt/PromptGetResult.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Prompt;
 
 final readonly class PromptGetResult

src/mcp-sdk/src/Capability/Prompt/PromptGetResultMessages.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Prompt;
 
 final readonly class PromptGetResultMessages

src/mcp-sdk/src/Capability/Prompt/PromptGetterInterface.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Prompt;
 
 use PhpLlm\McpSdk\Exception\PromptGetException;

src/mcp-sdk/src/Capability/PromptChain.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability;
 
 use PhpLlm\McpSdk\Capability\Prompt\CollectionInterface;

src/mcp-sdk/src/Capability/Resource/CollectionInterface.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Resource;
 
 interface CollectionInterface

src/mcp-sdk/src/Capability/Resource/IdentifierInterface.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Resource;
 
 interface IdentifierInterface

src/mcp-sdk/src/Capability/Resource/MetadataInterface.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Resource;
 
 interface MetadataInterface extends IdentifierInterface

src/mcp-sdk/src/Capability/Resource/ResourceRead.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Resource;
 
 final readonly class ResourceRead

src/mcp-sdk/src/Capability/Resource/ResourceReadResult.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Resource;
 
 final readonly class ResourceReadResult

src/mcp-sdk/src/Capability/Resource/ResourceReaderInterface.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Resource;
 
 use PhpLlm\McpSdk\Exception\ResourceNotFoundException;

src/mcp-sdk/src/Capability/ResourceChain.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability;
 
 use PhpLlm\McpSdk\Capability\Resource\CollectionInterface;

src/mcp-sdk/src/Capability/Tool/CollectionInterface.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Tool;
 
 interface CollectionInterface

src/mcp-sdk/src/Capability/Tool/IdentifierInterface.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Tool;
 
 interface IdentifierInterface

src/mcp-sdk/src/Capability/Tool/MetadataInterface.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Tool;
 
 interface MetadataInterface extends IdentifierInterface

src/mcp-sdk/src/Capability/Tool/ToolCall.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Tool;
 
 final readonly class ToolCall

src/mcp-sdk/src/Capability/Tool/ToolCallResult.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Tool;
 
 final readonly class ToolCallResult

src/mcp-sdk/src/Capability/Tool/ToolCollectionInterface.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Tool;
 
 interface ToolCollectionInterface

src/mcp-sdk/src/Capability/Tool/ToolExecutorInterface.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability\Tool;
 
 use PhpLlm\McpSdk\Exception\ToolExecutionException;

src/mcp-sdk/src/Capability/ToolChain.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Capability;
 
 use PhpLlm\McpSdk\Capability\Tool\CollectionInterface;

src/mcp-sdk/src/Exception/ExceptionInterface.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Exception;
 
 interface ExceptionInterface

src/mcp-sdk/src/Exception/NotFoundExceptionInterface.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Exception;
 
 interface NotFoundExceptionInterface extends ExceptionInterface

src/mcp-sdk/src/Exception/PromptGetException.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Exception;
 
 use PhpLlm\McpSdk\Capability\Prompt\PromptGet;
@@ -12,6 +21,6 @@ final class PromptGetException extends \RuntimeException implements ExceptionInt
         public readonly PromptGet $promptGet,
         ?\Throwable $previous = null,
     ) {
-        parent::__construct(sprintf('Handling prompt "%s" failed with error: %s', $promptGet->name, $previous->getMessage()), previous: $previous);
+        parent::__construct(\sprintf('Handling prompt "%s" failed with error: %s', $promptGet->name, $previous->getMessage()), previous: $previous);
     }
 }

src/mcp-sdk/src/Exception/PromptNotFoundException.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Exception;
 
 use PhpLlm\McpSdk\Capability\Prompt\PromptGet;
@@ -11,6 +20,6 @@ final class PromptNotFoundException extends \RuntimeException implements NotFoun
     public function __construct(
         public readonly PromptGet $promptGet,
     ) {
-        parent::__construct(sprintf('Resource not found for uri: "%s"', $promptGet->name));
+        parent::__construct(\sprintf('Resource not found for uri: "%s"', $promptGet->name));
     }
 }

src/mcp-sdk/src/Exception/ResourceNotFoundException.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Exception;
 
 use PhpLlm\McpSdk\Capability\Resource\ResourceRead;
@@ -11,6 +20,6 @@ final class ResourceNotFoundException extends \RuntimeException implements NotFo
     public function __construct(
         public readonly ResourceRead $readRequest,
     ) {
-        parent::__construct(sprintf('Resource not found for uri: "%s"', $readRequest->uri));
+        parent::__construct(\sprintf('Resource not found for uri: "%s"', $readRequest->uri));
     }
 }

src/mcp-sdk/src/Exception/ResourceReadException.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Exception;
 
 use PhpLlm\McpSdk\Capability\Resource\ResourceRead;
@@ -12,6 +21,6 @@ final class ResourceReadException extends \RuntimeException implements Exception
         public readonly ResourceRead $readRequest,
         ?\Throwable $previous = null,
     ) {
-        parent::__construct(sprintf('Reading resource "%s" failed with error: %s', $readRequest->uri, $previous?->getMessage() ?? ''), previous: $previous);
+        parent::__construct(\sprintf('Reading resource "%s" failed with error: %s', $readRequest->uri, $previous?->getMessage() ?? ''), previous: $previous);
     }
 }

src/mcp-sdk/src/Exception/ToolExecutionException.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Exception;
 
 use PhpLlm\McpSdk\Capability\Tool\ToolCall;
@@ -12,6 +21,6 @@ final class ToolExecutionException extends \RuntimeException implements Exceptio
         public readonly ToolCall $toolCall,
         ?\Throwable $previous = null,
     ) {
-        parent::__construct(sprintf('Execution of tool "%s" failed with error: %s', $toolCall->name, $previous?->getMessage() ?? ''), previous: $previous);
+        parent::__construct(\sprintf('Execution of tool "%s" failed with error: %s', $toolCall->name, $previous?->getMessage() ?? ''), previous: $previous);
     }
 }

src/mcp-sdk/src/Exception/ToolNotFoundException.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Exception;
 
 use PhpLlm\McpSdk\Capability\Tool\ToolCall;
@@ -11,6 +20,6 @@ final class ToolNotFoundException extends \RuntimeException implements NotFoundE
     public function __construct(
         public readonly ToolCall $toolCall,
     ) {
-        parent::__construct(sprintf('Tool not found for call: "%s"', $toolCall->name));
+        parent::__construct(\sprintf('Tool not found for call: "%s"', $toolCall->name));
     }
 }

src/mcp-sdk/src/Message/Error.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Message;
 
 final readonly class Error implements \JsonSerializable

src/mcp-sdk/src/Message/Factory.php

@@ -2,13 +2,22 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Message;
 
 final class Factory
 {
     public function create(string $json): Request|Notification
     {
-        $data = json_decode($json, true, flags: JSON_THROW_ON_ERROR);
+        $data = json_decode($json, true, flags: \JSON_THROW_ON_ERROR);
 
         if (!isset($data['method'])) {
             throw new \InvalidArgumentException('Invalid JSON-RPC request, missing method');

src/mcp-sdk/src/Message/Notification.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Message;
 
 final readonly class Notification implements \JsonSerializable, \Stringable
@@ -40,6 +49,6 @@ final readonly class Notification implements \JsonSerializable, \Stringable
 
     public function __toString(): string
     {
-        return sprintf('%s', $this->method);
+        return \sprintf('%s', $this->method);
     }
 }

src/mcp-sdk/src/Message/Request.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Message;
 
 final class Request implements \JsonSerializable, \Stringable
@@ -43,6 +52,6 @@ final class Request implements \JsonSerializable, \Stringable
 
     public function __toString(): string
     {
-        return sprintf('%s: %s', $this->id, $this->method);
+        return \sprintf('%s: %s', $this->id, $this->method);
     }
 }

src/mcp-sdk/src/Message/Response.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Message;
 
 final readonly class Response implements \JsonSerializable

src/mcp-sdk/src/Server.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk;
 
 use PhpLlm\McpSdk\Server\JsonRpcHandler;

src/mcp-sdk/src/Server/JsonRpcHandler.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server;
 
 use PhpLlm\McpSdk\Message\Error;
@@ -68,7 +77,7 @@ readonly class JsonRpcHandler
         } catch (\DomainException) {
             return null;
         } catch (\InvalidArgumentException $e) {
-            $this->logger->warning(sprintf('Failed to create response: %s', $e->getMessage()), ['exception' => $e]);
+            $this->logger->warning(\sprintf('Failed to create response: %s', $e->getMessage()), ['exception' => $e]);
 
             return $this->encodeResponse(Error::methodNotFound($message->id ?? 0, $e->getMessage()));
         }
@@ -85,10 +94,10 @@ readonly class JsonRpcHandler
         $this->logger->info('Encoding response', ['response' => $response]);
 
         if ($response instanceof Response && [] === $response->result) {
-            return json_encode($response, JSON_THROW_ON_ERROR | JSON_FORCE_OBJECT);
+            return json_encode($response, \JSON_THROW_ON_ERROR | \JSON_FORCE_OBJECT);
         }
 
-        return json_encode($response, JSON_THROW_ON_ERROR);
+        return json_encode($response, \JSON_THROW_ON_ERROR);
     }
 
     private function handleNotification(Notification $notification): null
@@ -99,7 +108,7 @@ readonly class JsonRpcHandler
             }
         }
 
-        $this->logger->warning(sprintf('No handler found for "%s".', $notification->method), ['notification' => $notification]);
+        $this->logger->warning(\sprintf('No handler found for "%s".', $notification->method), ['notification' => $notification]);
 
         return null;
     }
@@ -112,6 +121,6 @@ readonly class JsonRpcHandler
             }
         }
 
-        throw new \InvalidArgumentException(sprintf('No handler found for method "%s".', $request->method));
+        throw new \InvalidArgumentException(\sprintf('No handler found for method "%s".', $request->method));
     }
 }

src/mcp-sdk/src/Server/NotificationHandler/BaseNotificationHandler.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server\NotificationHandler;
 
 use PhpLlm\McpSdk\Message\Notification;
@@ -11,7 +20,7 @@ abstract class BaseNotificationHandler implements NotificationHandlerInterface
 {
     public function supports(Notification $message): bool
     {
-        return $message->method === sprintf('notifications/%s', $this->supportedNotification());
+        return $message->method === \sprintf('notifications/%s', $this->supportedNotification());
     }
 
     abstract protected function supportedNotification(): string;

src/mcp-sdk/src/Server/NotificationHandler/InitializedHandler.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server\NotificationHandler;
 
 use PhpLlm\McpSdk\Message\Notification;

src/mcp-sdk/src/Server/NotificationHandlerInterface.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server;
 
 use PhpLlm\McpSdk\Message\Notification;

src/mcp-sdk/src/Server/RequestHandler/BaseRequestHandler.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server\RequestHandler;
 
 use PhpLlm\McpSdk\Message\Request;

src/mcp-sdk/src/Server/RequestHandler/InitializeHandler.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server\RequestHandler;
 
 use PhpLlm\McpSdk\Message\Request;

src/mcp-sdk/src/Server/RequestHandler/PingHandler.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server\RequestHandler;
 
 use PhpLlm\McpSdk\Message\Request;

src/mcp-sdk/src/Server/RequestHandler/PromptGetHandler.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server\RequestHandler;
 
 use PhpLlm\McpSdk\Capability\Prompt\PromptGet;

src/mcp-sdk/src/Server/RequestHandler/PromptListHandler.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server\RequestHandler;
 
 use PhpLlm\McpSdk\Capability\Prompt\CollectionInterface;

src/mcp-sdk/src/Server/RequestHandler/ResourceListHandler.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server\RequestHandler;
 
 use PhpLlm\McpSdk\Capability\Resource\CollectionInterface;

src/mcp-sdk/src/Server/RequestHandler/ResourceReadHandler.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server\RequestHandler;
 
 use PhpLlm\McpSdk\Capability\Resource\ResourceRead;

src/mcp-sdk/src/Server/RequestHandler/ToolCallHandler.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server\RequestHandler;
 
 use PhpLlm\McpSdk\Capability\Tool\ToolCall;

src/mcp-sdk/src/Server/RequestHandler/ToolListHandler.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server\RequestHandler;
 
 use PhpLlm\McpSdk\Capability\Tool\CollectionInterface;

src/mcp-sdk/src/Server/RequestHandlerInterface.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server;
 
 use PhpLlm\McpSdk\Message\Error;

src/mcp-sdk/src/Server/Transport/Sse/Store/CachePoolStore.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server\Transport\Sse\Store;
 
 use PhpLlm\McpSdk\Server\Transport\Sse\StoreInterface;

src/mcp-sdk/src/Server/Transport/Sse/StoreInterface.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server\Transport\Sse;
 
 use Symfony\Component\Uid\Uuid;

src/mcp-sdk/src/Server/Transport/Sse/StreamTransport.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server\Transport\Sse;
 
 use PhpLlm\McpSdk\Server\TransportInterface;
@@ -44,9 +53,9 @@ final readonly class StreamTransport implements TransportInterface
 
     private function flushEvent(string $event, string $data): void
     {
-        echo sprintf('event: %s', $event).PHP_EOL;
-        echo sprintf('data: %s', $data).PHP_EOL;
-        echo PHP_EOL;
+        echo \sprintf('event: %s', $event).\PHP_EOL;
+        echo \sprintf('data: %s', $data).\PHP_EOL;
+        echo \PHP_EOL;
         if (false !== ob_get_length()) {
             ob_flush();
         }

src/mcp-sdk/src/Server/Transport/Stdio/SymfonyConsoleTransport.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server\Transport\Stdio;
 
 use PhpLlm\McpSdk\Server\TransportInterface;
@@ -33,14 +42,14 @@ final class SymfonyConsoleTransport implements TransportInterface
 
     public function receive(): \Generator
     {
-        $stream = $this->input instanceof StreamableInputInterface ? $this->input->getStream() ?? STDIN : STDIN;
+        $stream = $this->input instanceof StreamableInputInterface ? $this->input->getStream() ?? \STDIN : \STDIN;
         $line = fgets($stream);
         if (false === $line) {
             return;
         }
-        $this->buffer .= STDIN === $stream ? rtrim($line).PHP_EOL : $line;
-        if (str_contains($this->buffer, PHP_EOL)) {
-            $lines = explode(PHP_EOL, $this->buffer);
+        $this->buffer .= \STDIN === $stream ? rtrim($line).\PHP_EOL : $line;
+        if (str_contains($this->buffer, \PHP_EOL)) {
+            $lines = explode(\PHP_EOL, $this->buffer);
             $this->buffer = array_pop($lines);
 
             yield from $lines;

src/mcp-sdk/src/Server/TransportInterface.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Server;
 
 interface TransportInterface

src/mcp-sdk/tests/Message/ErrorTest.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Tests\Message;
 
 use PhpLlm\McpSdk\Message\Error;

src/mcp-sdk/tests/Message/FactoryTest.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Tests\Message;
 
 use PhpLlm\McpSdk\Message\Factory;

src/mcp-sdk/tests/Message/ResponseTest.php

@@ -2,6 +2,15 @@
 
 declare(strict_types=1);
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Tests\Message;
 
 use PhpLlm\McpSdk\Message\Response;

src/mcp-sdk/tests/ServerTest.php

@@ -1,5 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpLlm\McpSdk\Tests;
 
 use PhpLlm\McpSdk\Server;