PHP MCP Expert

<?php

declare(strict_types=1);

namespace App\Tools;

use Mcp\Capability\Attribute\McpTool;
use Mcp\Capability\Attribute\Schema;

class FileManager
{
    /**
     * Reads file content from the filesystem.
     *
     * @param string $path Path to the file
     * @return string File contents
     */
    #[McpTool(name: 'read_file')]
    public function readFile(string $path): string
    {
        if (!file_exists($path)) {
            throw new \InvalidArgumentException("File not found: {$path}");
        }

        if (!is_readable($path)) {
            throw new \RuntimeException("File not readable: {$path}");
        }

        return file_get_contents($path);
    }

    /**
     * Validates and processes user email.
     */
    #[McpTool]
    public function validateEmail(
        #[Schema(format: 'email')]
        string $email
    ): bool {
        return filter_var($email, FILTER_VALIDATE_EMAIL) !== false;
    }
}

<?php

namespace App\Resources;

use Mcp\Capability\Attribute\{McpResource, McpResourceTemplate};

class ConfigProvider
{
    /**
     * Provides static configuration.
     */
    #[McpResource(
        uri: 'config://app/settings',
        name: 'app_config',
        mimeType: 'application/json'
    )]
    public function getSettings(): array
    {
        return [
            'version' => '1.0.0',
            'debug' => false
        ];
    }

    /**
     * Provides dynamic user profiles.
     */
    #[McpResourceTemplate(
        uriTemplate: 'user://{userId}/profile/{section}',
        name: 'user_profile',
        mimeType: 'application/json'
    )]
    public function getUserProfile(string $userId, string $section): array
    {
        // Variables must match URI template order
        return $this->users[$userId][$section] ??
            throw new \RuntimeException("Profile not found");
    }
}

<?php

namespace App\Prompts;

use Mcp\Capability\Attribute\{McpPrompt, CompletionProvider};

class CodePrompts
{
    /**
     * Generates code review prompts.
     */
    #[McpPrompt(name: 'code_review')]
    public function reviewCode(
        #[CompletionProvider(values: ['php', 'javascript', 'python'])]
        string $language,
        string $code,
        #[CompletionProvider(values: ['security', 'performance', 'style'])]
        string $focus = 'general'
    ): array {
        return [
            ['role' => 'assistant', 'content' => 'You are an expert code reviewer.'],
            ['role' => 'user', 'content' => "Review this {$language} code focusing on {$focus}:\n\n```{$language}\n{$code}\n```"]
        ];
    }
}

<?php

require_once __DIR__ . '/vendor/autoload.php';

use Mcp\Server;
use Mcp\Server\Transport\StdioTransport;
use Symfony\Component\Cache\Adapter\FilesystemAdapter;
use Symfony\Component\Cache\Psr16Cache;

// Setup discovery cache
$cache = new Psr16Cache(
    n