<?php

declare(strict_types=1);

namespace Mod\Chain\Contracts;

/**
 * Service health check interface.
 *
 *   $result = $service->healthCheck();
 *   if ($result['status'] === 'healthy') { ... }
 */
interface HealthCheckable
{
    /**
     * @return array{status: string, detail: string, stale?: bool}
     */
    public function healthCheck(): array;
}