whatsdiff/src/whatsdiff-mcp.php at main · whatsdiff/whatsdiff · GitHub

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<?php

declare(strict_types=1);

use PhpMcp\Server\Server;

use PhpMcp\Server\Transports\StdioServerTransport;

use Whatsdiff\Application;

use Whatsdiff\Mcp\Tools\FindCompatibleVersionTool;

use Whatsdiff\Mcp\Tools\GetAvailableUpgradesTool;

use Whatsdiff\Mcp\Tools\GetDependencyConstraintsTool;

use Whatsdiff\Mcp\Tools\GetReleaseNotesTool;

use Whatsdiff\Services\AgentEnvironment;

// Autoload dependencies

if (! class_exists('\Composer\InstalledVersions')) {

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

}

// Set up error handling (simplified for MCP server)

error_reporting(0);

// Initialize container with shared configuration.

// MCP responses are already structured; skip agent detection so CLI defaults

// (e.g. forcing JSON format) don't bleed into MCP tool output.

$container = Application::instantiateContainer(AgentEnvironment::noAgent());

// Build MCP server using the same container

$server = Server::make()

->withServerInfo('whatsdiff', Application::getVersionString())

->withContainer($container)

->withTool(

[FindCompatibleVersionTool::class, 'findCompatibleVersions'],

'find_compatible_versions',

'Find which major versions of a package are compatible with a given dependency constraint. Examples: which livewire versions work with illuminate/support ^11.0? Which laravel/framework versions work with PHP ^8.2?'

)

->withTool(

[GetReleaseNotesTool::class, 'getReleaseNotes'],

'get_release_notes',

'Fetch aggregated release notes for a package between two versions from GitHub releases.'

)

->withTool(

[GetAvailableUpgradesTool::class, 'getAvailableUpgrades'],

'get_available_upgrades',

'Get the latest available patch, minor, and major version upgrades for a package to help determine new composer.json constraints.'

)

->withTool(

[GetDependencyConstraintsTool::class, 'getDependencyConstraints'],

'get_dependency_constraints',

'Get all dependencies required by a specific package version. Example: what does livewire v3.0.0 require?'

)

->build();

// Create and start stdio transport

$transport = new StdioServerTransport;

$server->listen($transport);

whatsdiff/src/whatsdiff-mcp.php at main · whatsdiff/whatsdiff · GitHub

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