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<?php |
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/** |
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* Resolves whether an ability is exposed through the default MCP server. |
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* |
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* @package McpAdapter |
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*/ |
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|
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declare( strict_types=1 ); |
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|
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namespace WP\MCP\Abilities; |
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|
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use WP_Ability; |
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|
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/** |
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* Class McpAbilityExposure |
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* |
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* Single source of truth for MCP exposure. Every read of the exposure flag must |
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* go through this class. Reading `meta.mcp.public` directly reintroduces the bug |
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* this class exists to prevent: exposure cannot be resolved while an ability is |
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* being registered, because `wp_register_ability_args` callbacks that run later |
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* can still change `meta.public`, and no filter priority is guaranteed to run |
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* last. Resolving from the stored ability instead happens after registration is |
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* complete, so the metadata is final. |
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* |
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* @since 0.6.0 |
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*/ |
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final class McpAbilityExposure { |
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|
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/** |
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* Determines whether an ability is exposed through the default MCP server. |
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* |
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* An explicit `meta.mcp.public` wins. When it is absent or null, exposure is |
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* inherited from the high-level `meta.public` flag. Malformed `meta.mcp` |
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* fails closed. |
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* |
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* @since 0.6.0 |
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* |
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* @param \WP_Ability $ability The ability to check. |
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* |
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* @return bool True when the ability is exposed through MCP, false otherwise. |
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*/ |
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public static function is_public( WP_Ability $ability ): bool { |
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return self::is_meta_public( $ability->get_meta() ); |
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} |
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|
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/** |
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* Determines whether ability metadata resolves to MCP exposure. |
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* |
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* @since 0.6.0 |
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* |
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* @param array<string, mixed> $meta Ability metadata. |
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* |
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* @return bool True when the metadata resolves to MCP exposure, false otherwise. |
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*/ |
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public static function is_meta_public( array $meta ): bool { |
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$mcp_meta = $meta['mcp'] ?? array(); |
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|
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// Fail closed when `meta.mcp` is malformed. |
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if ( ! is_array( $mcp_meta ) ) { |
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return false; |
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} |
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|
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if ( isset( $mcp_meta['public'] ) ) { |
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return (bool) $mcp_meta['public']; |
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} |
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return true === ( $meta['public'] ?? false ); |
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} |
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} |
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