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[Server] Provide custom injection functionality #167
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Activity
- changed the title
[-][server]Provide custom injection functionality[/-][+][server] Provide custom injection functionality[/+]on Nov 23, 2025 - changed the title
[-][server] Provide custom injection functionality[/-][+][Server] Provide custom injection functionality[/+]on Nov 23, 2025 The Server can be built with a PSR-11 container. If you build that container yourself (or use the one from your framework), we could allow it to detect a way to inject services in the tool like that.
I need to think how this will play with example #161
Since 0.2.0 you may use
RequestContextto get the request.Note that the
RequestContextis bound to a request, it should not be added to the class. If you want to inject other services, feel free to use any PSR-11 container.<?php namespace app\controller; use Mcp\Capability\Attribute\McpTool; use Mcp\Server\RequestContext; class UserController { #[McpTool(name: 'hello')] public function hello(RequestContext $context) { $request = $context->getRequest(); $default_name = 'webman'; $name = $request->get('name', $default_name); return 'hello ' . $name; } }
Is your feature request related to a problem? Please describe.
My goal is to apply McpTool annotations to controllers, but the framework uses custom injection, similar to how ClientGateway is injected in the SDK, which prevents it from working in controllers.This type of injection typically does not occur in the Container, as it is associated with the request.
Describe the solution you'd like
Provide custom injection functionality and expose it in Builder.
Describe alternatives you've considered
Rewrite the prepareArguments method and set the ReferenceHandler in the Builder.
Additional context
sample code: