feat: jedes Divi-Tool und lit/content-create erklärt seine Divi-Fähigkeiten (RequiresDiviFeatures, DeclaresRequirements, FeatureSets); Tabelle Tool → Fähigkeiten als Test

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

src/Integrations/WordPress/Content/ContentComposer.php

@@ -35,6 +35,15 @@ interface ContentComposer
      */
     public function refusal(): ?WP_Error;
 
+    /**
+     * IDs of the capabilities of the composing integration that composing a new entry needs (the Divi integration:
+     * the DiviFeature values). lit/content-create hands them on as DeclaresRequirements; the core never interprets
+     * them.
+     *
+     * @return list<string>
+     */
+    public function requirements(): array;
+
     /**
      * Validates the description for a new entry of $postType. Nothing is written.
      *

src/Integrations/WordPress/Content/ContentCreateAbility.php

@@ -6,6 +6,7 @@ namespace LIT\MCP\Integrations\WordPress\Content;
 
 use LIT\MCP\Abilities\Ability;
 use LIT\MCP\Abilities\Annotations;
+use LIT\MCP\Abilities\DeclaresRequirements;
 use LIT\MCP\Abilities\Errors;
 use LIT\MCP\Abilities\Rev;
 use LIT\MCP\Abilities\ToolResult;
@@ -32,7 +33,7 @@ defined('ABSPATH') || exit;
  * (title/excerpt keep kses), then the composer stores the layout (DiviSaver's kses window, spec
  * D7) – a refusal or failure there deletes the draft again.
  */
-final class ContentCreateAbility implements Ability
+final class ContentCreateAbility implements Ability, DeclaresRequirements
 {
     /** The extras (written after the layout) re-saved the entry and changed the stored layout (review m-6). */
     public const LAYOUT_CHANGED = 'Der Divi-Inhalt wurde beim Speichern der Felder verändert (z. B. durch ein Plugin); '
@@ -109,6 +110,15 @@ final class ContentCreateAbility implements Ability
         return $type instanceof WP_Error ? $type : true;
     }
 
+    /**
+     * Without divi the call stays in WordPress and needs nothing; with divi it needs what the ContentComposer says it
+     * needs (the Divi integration names its capabilities), so the guard refuses before a draft is inserted.
+     */
+    public function requirements(array $input): array
+    {
+        return array_key_exists('divi', $input) && $this->divi !== null ? $this->divi->requirements() : [];
+    }
+
     public function execute(array $input): mixed
     {
         $type = PostGuard::postType($input['post_type'] ?? null, $this->schema, 'create_posts');