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\Enum;
15:
16: /**
17: * Controls the tool use ability of the model during sampling.
18: *
19: * @see https://github.com/modelcontextprotocol/modelcontextprotocol/blob/main/schema/2025-11-25/schema.ts
20: */
21: enum ToolChoiceMode: string
22: {
23: /**
24: * Model decides whether to use tools.
25: */
26: case Auto = 'auto';
27:
28: /**
29: * Model MUST NOT use any tools.
30: */
31: case None = 'none';
32:
33: /**
34: * Model MUST use at least one tool before completing.
35: */
36: case Required = 'required';
37: }
38: