File Core/Schema/Notification/ToolListChangedNotification.php

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\Core\Schema\Notification;
15:
16:	use Nexus\Assert\Assert;
17:	use Nexus\Mcp\Core\Schema\JsonRpc\JsonRpcNotification;
18:	use Nexus\Mcp\Core\Schema\NotificationParams;
19:	use Nexus\Mcp\Core\Schema\NotificationParams\EmptyNotificationParams;
20:
21:	/**
22:	* An optional notification from the server to the client, informing it that the list of tools
23:	* it offers has changed. This is only delivered on a `subscriptions/listen` stream when the
24:	* client requested it via the `toolsListChanged` filter field.
25:	*
26:	* @property-read EmptyNotificationParams $params
27:	*
28:	* @extends JsonRpcNotification<'notifications/tools/list_changed', array{
29:	* jsonrpc: '2.0',
30:	* method: 'notifications/tools/list_changed',
31:	* params?: template-type<EmptyNotificationParams, NotificationParams, 'T'>,
32:	* }>
33:	*
34:	* @see https://modelcontextprotocol.io/specification/draft/schema#toollistchangednotification
35:	*/
36:	final readonly class ToolListChangedNotification extends JsonRpcNotification implements ServerNotification
37:	{
38:	#[\Override]
39:	public static function getMethod(): string
40:	{
41:	return 'notifications/tools/list_changed';
42:	}
43:
44:	#[\Override]
45:	public static function fromArray(array $data): static
46:	{
47:	$params = new EmptyNotificationParams();
48:
49:	if (\array_key_exists('params', $data)) {
50:	Assert::that($data['params'])
51:	->isArray('"params" must be an object, {type} given.')
52:	->isMap('"params" must be a string-keyed object.')
53:	;
54:	$params = EmptyNotificationParams::fromArray($data['params']);
55:	}
56:
57:	return new self(params: $params);
58:	}
59:
60:	#[\Override]
61:	public function toArray(): array
62:	{
63:	$envelope = [
64:	'jsonrpc' => self::JSONRPC_VERSION,
65:	'method' => static::getMethod(),
66:	];
67:
68:	$params = $this->params->toArray();
69:
70:	if ([] !== $params) {
71:	$envelope['params'] = $params;
72:	}
73:
74:	return $envelope;
75:	}
76:	}
77:

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