1: <?php
2:
3: declare(strict_types=1);
4:
5: /**
6: * This file is part of the Nexus MCP SDK package.
7: *
8: * (c) 2026 John Paul E. Balandan, CPA <paulbalandan@gmail.com>
9: *
10: * For the full copyright and license information, please view
11: * the LICENSE file that was distributed with this source code.
12: */
13:
14: namespace Nexus\Mcp\Server\Extension;
15:
16: use Nexus\Mcp\Core\Handler\RequestHandlerInterface;
17: use Nexus\Mcp\Core\Schema\Result;
18: use Nexus\Mcp\Server\ServerContext;
19:
20: /**
21: * Optional add-on to `ServerExtensionInterface` for extensions decorating the
22: * handlers that serve spec-registry request methods.
23: *
24: * @phpstan-type RequestHandlerDecorator \Closure(RequestHandlerInterface<non-empty-string, Result, ServerContext>): RequestHandlerInterface<non-empty-string, Result, ServerContext>
25: */
26: interface RequestHandlerDecoratorInterface
27: {
28: /**
29: * Decorator closures keyed by the spec-registry request method they wrap.
30: *
31: * @return array<non-empty-string, RequestHandlerDecorator>
32: */
33: public function getRequestHandlerDecorators(): array;
34: }
35: