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<?php |
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/** |
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* Bridge between NotificationX abilities and MCP tools. |
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* |
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* The tool surface *is* the ability registry — it cannot drift. This class |
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* turns registered abilities into `tools/list` entries and routes `tools/call` |
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* to the matching ability, enforcing read-only scope before any write runs. |
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* |
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* @package NotificationX\MCP |
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*/ |
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|
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namespace NotificationX\MCP; |
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|
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use NotificationX\GetInstance; |
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use NotificationX\Abilities\Registrar; |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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|
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/** |
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* @method static Tools get_instance( $args = null ) |
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*/ |
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class Tools { |
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|
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use GetInstance; |
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|
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/** |
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* When true, only read abilities may be invoked (set from the credential's |
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* scope by the server before dispatch). |
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* |
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* @var bool |
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*/ |
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protected $read_only = false; |
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|
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/** |
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* Set the read-only override for the current request. |
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* |
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* @param bool $read_only Whether the credential is read-only. |
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* @return void |
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*/ |
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public function set_read_only( $read_only ) { |
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$this->read_only = (bool) $read_only; |
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} |
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|
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/** |
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* Build the tools/list payload. |
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* |
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* @return array |
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*/ |
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public function list_tools() { |
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$tools = array(); |
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foreach ( Registrar::get_instance()->get_all() as $ability ) { |
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$tools[] = $ability->to_tool(); |
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} |
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return $tools; |
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} |
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|
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/** |
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* Invoke a tool by its MCP name. |
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* |
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* @param string $name Tool name (no category prefix). |
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* @param array $args Tool arguments. |
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* @return array|\WP_Error Ability result or error. |
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*/ |
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public function invoke( $name, $args = array() ) { |
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$ability = Registrar::get_instance()->get_by_tool_name( $name ); |
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|
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if ( ! $ability ) { |
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return new \WP_Error( |
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'nx_mcp_unknown_tool', |
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/* translators: %s: tool name. */ |
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sprintf( __( 'Unknown tool: %s', 'notificationx' ), $name ), |
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array( 'status' => 404 ) |
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); |
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} |
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|
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if ( $this->read_only && $ability->is_write() ) { |
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return new \WP_Error( |
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'nx_mcp_read_only', |
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__( 'This connection is read-only and cannot run write tools.', 'notificationx' ), |
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array( 'status' => 403 ) |
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); |
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} |
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|
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return $ability->run( is_array( $args ) ? $args : array() ); |
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} |
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} |
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|
