feat: Divi read tools accept library entries (library access, E1/E3)

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

src/Integrations/Divi/Pages/DiviPage.php

@@ -21,10 +21,17 @@ final class DiviPage
     public function __construct(
         public readonly WP_Post $post,
         public readonly Document $document,
-        public readonly NodeIndex $index
+        public readonly NodeIndex $index,
+        private bool $libraryItem = false
     ) {
     }
 
+    /** Whether the entry is a Divi Library entry (et_pb_layout), loaded through LibraryAccess. */
+    public function isLibraryItem(): bool
+    {
+        return $this->libraryItem;
+    }
+
     public function treeRev(): string
     {
         return Rev::of((string) $this->post->post_content);
@@ -40,7 +47,10 @@ final class DiviPage
 
     public function editUrl(): string
     {
-        return self::builderUrl($this->post);
+        // A library entry has no public permalink (public: false); Divi's library list opens it here.
+        return $this->libraryItem
+            ? (string) get_edit_post_link($this->post, 'raw')
+            : self::builderUrl($this->post);
     }
 
     /** The entry opened in the Divi Visual Builder – the edit_url of every Divi write (review I-1). */

src/Integrations/Divi/Pages/DiviPageLoader.php

@@ -8,31 +8,45 @@ use LIT\MCP\Abilities\Errors;
 use LIT\MCP\Integrations\Divi\BlockTree\MalformedMarkup;
 use LIT\MCP\Integrations\Divi\BlockTree\NodeIndex;
 use LIT\MCP\Integrations\Divi\BlockTree\Parser;
+use LIT\MCP\Integrations\Divi\Library\LibraryAccess;
 use LIT\MCP\Integrations\WordPress\PostGuard;
 use LIT\MCP\Integrations\WordPress\Schema\ContentSchema;
 use LIT\MCP\Log;
 use WP_Error;
+use WP_Post;
 
 defined('ABSPATH') || exit;
 
 /**
- * Loads an entry for the Divi tools: rights and status via PostGuard (spec §4.5), then the
- * block tree. Divi 4 shortcode content and unbalanced markup are refused with a hint –
- * spec §3.4: Divi 4 content is kept, never edited.
+ * Loads an entry for the Divi tools: Divi Library entries via LibraryAccess (E1/E3), every other
+ * entry with its rights and status via PostGuard (spec §4.5), then the block tree. Divi 4
+ * shortcode content and unbalanced markup are refused with a hint – spec §3.4: Divi 4 content
+ * is kept, never edited.
  */
 final class DiviPageLoader
 {
     public const OUTLINE_HINT = 'Aktuellen Stand mit lit/divi-outline (direkt: lit-divi-outline) neu lesen und die '
         . 'Änderung mit der neuen tree_rev wiederholen.';
 
-    public function __construct(private ContentSchema $schema, private Parser $parser = new Parser())
+    public function __construct(
+        private ContentSchema $schema,
+        private Parser $parser = new Parser(),
+        private ?LibraryAccess $library = null
+    ) {
+    }
+
+    /** The library access the Divi tools use, null when library entries are not reachable. */
+    public function library(): ?LibraryAccess
     {
+        return $this->library;
     }
 
     /** Readers pass $forWrite = false (trashed entries may be read, like lit-content-get). */
     public function load(mixed $postId, bool $forWrite): DiviPage|WP_Error
     {
-        $post = PostGuard::editable($postId, $this->schema, 'post_id', ! $forWrite);
+        // Library entries (E1): only for reading so far, and only with a library access.
+        $item = $forWrite ? null : $this->library?->item($postId, false);
+        $post = $item ?? PostGuard::editable($postId, $this->schema, 'post_id', ! $forWrite);
         if ($post instanceof WP_Error) {
             return $post;
         }
@@ -64,7 +78,7 @@ final class DiviPageLoader
             );
         }
 
-        return new DiviPage($post, $document, NodeIndex::build($document));
+        return new DiviPage($post, $document, NodeIndex::build($document), $item instanceof WP_Post);
     }
 
     /** The entry loaded for writing and checked by writable() – the refusal of either step. */