diff --git a/src/Integrations/Divi/Design/DesignSystemReader.php b/src/Integrations/Divi/Design/DesignSystemReader.php
index 87a77d9..e722131 100644
--- a/src/Integrations/Divi/Design/DesignSystemReader.php
+++ b/src/Integrations/Divi/Design/DesignSystemReader.php
@@ -8,6 +8,7 @@ use ET\Builder\Packages\GlobalData\GlobalData;
 use ET\Builder\Packages\GlobalData\GlobalPreset;
 use LIT\MCP\Integrations\Divi\Release\Call;
 use LIT\MCP\Integrations\Divi\Release\DiviAdapter;
+use LIT\MCP\Integrations\Divi\Release\DiviFeature;
 use LIT\MCP\Integrations\Divi\Release\Manifest;
 
 defined('ABSPATH') || exit;
@@ -34,7 +35,8 @@ class DesignSystemReader implements DiviAdapter
                 new Call(GlobalData::class . '::get_global_variables', 0),
                 new Call(GlobalPreset::class . '::get_data', 0),
             ],
-            keys: [self::OPTIONS]
+            keys: [self::OPTIONS],
+            features: [DiviFeature::DesignRead, DiviFeature::PageRead]
         );
     }
 
diff --git a/src/Integrations/Divi/Design/DesignSystemWriter.php b/src/Integrations/Divi/Design/DesignSystemWriter.php
index 80d7026..743965d 100644
--- a/src/Integrations/Divi/Design/DesignSystemWriter.php
+++ b/src/Integrations/Divi/Design/DesignSystemWriter.php
@@ -10,6 +10,7 @@ use ET\Builder\Packages\GlobalData\GlobalPreset;
 use ET\Builder\Packages\ModuleLibrary\ModuleRegistration;
 use LIT\MCP\Integrations\Divi\Release\Call;
 use LIT\MCP\Integrations\Divi\Release\DiviAdapter;
+use LIT\MCP\Integrations\Divi\Release\DiviFeature;
 use LIT\MCP\Integrations\Divi\Release\DiviLocked;
 use LIT\MCP\Integrations\Divi\Release\Manifest;
 use LIT\MCP\Integrations\Divi\Release\Mirror;
@@ -44,7 +45,8 @@ class DesignSystemWriter implements DiviAdapter
         return new Manifest(
             Manifest::DESIGN,
             calls: [
-                new Call(GlobalPreset::class . '::get_data', 0),
+                // Read by the preset tools as well as by the design system tool.
+                new Call(GlobalPreset::class . '::get_data', 0, [DiviFeature::DesignRead, DiviFeature::PresetWrite]),
                 new Call(GlobalPreset::class . '::prepare_data', 1),
                 new Call(GlobalPreset::class . '::validate_preset_count', 3),
                 new Call(GlobalPreset::class . '::get_deleted_preset_ids', 3),
@@ -52,8 +54,17 @@ class DesignSystemWriter implements DiviAdapter
                 new Call(GlobalPreset::class . '::save_data', 1),
                 new Call(Conversion::class . '::get_preset_attrs_mapping', 1),
                 new Call(Conversion::class . '::get_preset_attrs', 3),
-                new Call(GlobalPreset::class . '::get_group_preset_default_attr', 1),
-                new Call(ModuleRegistration::class . '::get_module_settings', 1),
+                // groupsOf(): also used by the composer for group presets (insert/update/assign), so Catalog too.
+                new Call(
+                    GlobalPreset::class . '::get_group_preset_default_attr',
+                    1,
+                    [DiviFeature::Catalog, DiviFeature::PresetWrite]
+                ),
+                new Call(
+                    ModuleRegistration::class . '::get_module_settings',
+                    1,
+                    [DiviFeature::Catalog, DiviFeature::PresetWrite]
+                ),
                 new Call(UserRole::class . '::can_current_user_use_visual_builder', 0),
             ],
             mirrors: [
@@ -65,7 +76,8 @@ class DesignSystemWriter implements DiviAdapter
                     'Speicherablauf der Presets (prepare_data, validate_preset_count, Bereinigung der Divi-4-Option '
                         . 'beim Löschen, save_data)'
                 ),
-            ]
+            ],
+            features: [DiviFeature::PresetWrite]
         );
     }
 
diff --git a/src/Integrations/Divi/Library/DiviLibraryStore.php b/src/Integrations/Divi/Library/DiviLibraryStore.php
index c2abfa8..18feaa6 100644
--- a/src/Integrations/Divi/Library/DiviLibraryStore.php
+++ b/src/Integrations/Divi/Library/DiviLibraryStore.php
@@ -7,6 +7,7 @@ namespace LIT\MCP\Integrations\Divi\Library;
 use LIT\MCP\Abilities\WriteFailed;
 use LIT\MCP\Integrations\Divi\Release\Call;
 use LIT\MCP\Integrations\Divi\Release\DiviAdapter;
+use LIT\MCP\Integrations\Divi\Release\DiviFeature;
 use LIT\MCP\Integrations\Divi\Release\DiviLocked;
 use LIT\MCP\Integrations\Divi\Release\Manifest;
 use LIT\MCP\Integrations\Divi\Release\Mirror;
@@ -55,7 +56,14 @@ class DiviLibraryStore implements DiviAdapter
     {
         return new Manifest(
             Manifest::LIBRARY,
-            calls: [new Call(self::GLOBAL_LAYOUT . '::is_global_layout_template', 1)],
+            calls: [
+                // isGlobal() serves listing and describing as well as the global edits.
+                new Call(
+                    self::GLOBAL_LAYOUT . '::is_global_layout_template',
+                    1,
+                    [DiviFeature::LibraryRead, DiviFeature::LibraryWrite]
+                ),
+            ],
             postTypes: [self::POST_TYPE],
             taxonomies: [...self::TAXONOMIES, 'layout_category', 'layout_tag'],
             keys: [self::MODULE_TYPE, self::EXCLUDED_OPTIONS, self::BUILT_FOR, self::TEMPLATE_TYPE],
@@ -68,7 +76,8 @@ class DiviLibraryStore implements DiviAdapter
                     'Terme und Meta neuer Bibliothekseinträge (scope, layout_type, module_width, _et_pb_module_type, '
                         . '_et_pb_excluded_global_options, _et_pb_built_for_post_type, _et_pb_template_type)'
                 ),
-            ]
+            ],
+            features: [DiviFeature::LibraryWrite]
         );
     }
 
diff --git a/src/Integrations/Divi/Library/DiviRoles.php b/src/Integrations/Divi/Library/DiviRoles.php
index 97090a0..e2c3e22 100644
--- a/src/Integrations/Divi/Library/DiviRoles.php
+++ b/src/Integrations/Divi/Library/DiviRoles.php
@@ -8,6 +8,7 @@ use Closure;
 use LIT\MCP\Abilities\Errors;
 use LIT\MCP\Integrations\Divi\Release\Call;
 use LIT\MCP\Integrations\Divi\Release\DiviAdapter;
+use LIT\MCP\Integrations\Divi\Release\DiviFeature;
 use LIT\MCP\Integrations\Divi\Release\Manifest;
 use WP_Error;
 
@@ -33,7 +34,11 @@ class DiviRoles implements DiviAdapter
 
     public static function manifest(): Manifest
     {
-        return new Manifest(Manifest::LIBRARY, calls: [new Call('et_pb_is_allowed', 1)]);
+        return new Manifest(
+            Manifest::LIBRARY,
+            calls: [new Call('et_pb_is_allowed', 1)],
+            features: [DiviFeature::Roles]
+        );
     }
 
     /** @param (Closure(string): bool)|null $check Test seam; null = Divi's et_pb_is_allowed(). */
diff --git a/src/Integrations/Divi/Pages/DiviPages.php b/src/Integrations/Divi/Pages/DiviPages.php
index fa35d4a..6e997f9 100644
--- a/src/Integrations/Divi/Pages/DiviPages.php
+++ b/src/Integrations/Divi/Pages/DiviPages.php
@@ -6,6 +6,7 @@ namespace LIT\MCP\Integrations\Divi\Pages;
 
 use LIT\MCP\Integrations\Divi\Release\Call;
 use LIT\MCP\Integrations\Divi\Release\DiviAdapter;
+use LIT\MCP\Integrations\Divi\Release\DiviFeature;
 use LIT\MCP\Integrations\Divi\Release\DiviLocked;
 use LIT\MCP\Integrations\Divi\Release\Manifest;
 use LIT\MCP\Integrations\Divi\Release\Mirror;
@@ -36,7 +37,12 @@ final class DiviPages implements DiviAdapter
         return new Manifest(
             Manifest::PAGES,
             calls: [
-                new Call('ET_Core_PageResource::remove_static_resources', 3),
+                // Also called by DiviThemeBuilder::clearSiteCaches() – a break locks both features.
+                new Call(
+                    'ET_Core_PageResource::remove_static_resources',
+                    3,
+                    [DiviFeature::PageWrite, DiviFeature::ThemeBuilderWrite]
+                ),
                 new Call('et_builder_get_public_post_types', 0),
             ],
             keys: ['_et_pb_use_divi_5', '_et_pb_use_builder', '_et_pb_show_page_creation', 'et_fb'],
@@ -48,7 +54,8 @@ final class DiviPages implements DiviAdapter
                     'SyncToServerController',
                     'Builder-Kennzeichen einer Seite (_et_pb_use_divi_5, _et_pb_use_builder, _et_pb_show_page_creation)'
                 ),
-            ]
+            ],
+            features: [DiviFeature::PageWrite]
         );
     }
 
diff --git a/src/Integrations/Divi/Pages/DynamicContentMap.php b/src/Integrations/Divi/Pages/DynamicContentMap.php
index 704f291..19bce45 100644
--- a/src/Integrations/Divi/Pages/DynamicContentMap.php
+++ b/src/Integrations/Divi/Pages/DynamicContentMap.php
@@ -9,6 +9,7 @@ use LIT\MCP\Integrations\Divi\Compose\Placeholders;
 use LIT\MCP\Integrations\Divi\Compose\DynamicContentRules;
 use LIT\MCP\Integrations\Divi\Release\Call;
 use LIT\MCP\Integrations\Divi\Release\DiviAdapter;
+use LIT\MCP\Integrations\Divi\Release\DiviFeature;
 use LIT\MCP\Integrations\Divi\Release\Manifest;
 use LIT\MCP\Log;
 use Throwable;
@@ -46,7 +47,11 @@ class DynamicContentMap implements DiviAdapter
 
     public static function manifest(): Manifest
     {
-        return new Manifest(Manifest::CATALOG, calls: [new Call(self::REGISTRY . '::get_options', 2)]);
+        return new Manifest(
+            Manifest::CATALOG,
+            calls: [new Call(self::REGISTRY . '::get_options', 2)],
+            features: [DiviFeature::DynamicSources]
+        );
     }
 
     /** @return array<string, array<string, string>>|null Null = use DynamicContentRules' default map. */
diff --git a/src/Integrations/Divi/Release/Call.php b/src/Integrations/Divi/Release/Call.php
index 1f558c6..2b714ac 100644
--- a/src/Integrations/Divi/Release/Call.php
+++ b/src/Integrations/Divi/Release/Call.php
@@ -10,11 +10,17 @@ defined('ABSPATH') || exit;
  * One Divi function or static method an adapter calls (spec §4.1), with the number of arguments the plugin passes.
  * $args null: only its existence matters (a function Divi itself needs, e.g. et_() inside store_template).
  */
-final class Call
+final class Call implements Requirement
 {
-    /** @param string $symbol "function_name" or "Fully\Qualified\Class::method". */
-    public function __construct(public readonly string $symbol, public readonly ?int $args = null)
-    {
+    /**
+     * @param string            $symbol   "function_name" or "Fully\Qualified\Class::method".
+     * @param list<DiviFeature> $features [] = the default of the manifest.
+     */
+    public function __construct(
+        public readonly string $symbol,
+        public readonly ?int $args = null,
+        private readonly array $features = []
+    ) {
     }
 
     public function className(): ?string
@@ -27,6 +33,11 @@ final class Call
         return str_contains($this->symbol, '::') ? explode('::', $this->symbol, 2)[1] : $this->symbol;
     }
 
+    public function features(): array
+    {
+        return $this->features;
+    }
+
     public function label(): string
     {
         $class = $this->className();
diff --git a/src/Integrations/Divi/Release/ConstantRequirement.php b/src/Integrations/Divi/Release/ConstantRequirement.php
new file mode 100644
index 0000000..86a4c23
--- /dev/null
+++ b/src/Integrations/Divi/Release/ConstantRequirement.php
@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LIT\MCP\Integrations\Divi\Release;
+
+defined('ABSPATH') || exit;
+
+/** A Divi constant an adapter reads (spec §4.1); it must be defined. */
+final class ConstantRequirement implements Requirement
+{
+    /** @param list<DiviFeature> $features [] = the default of the manifest. */
+    public function __construct(public readonly string $name, private readonly array $features = [])
+    {
+    }
+
+    public function label(): string
+    {
+        return 'Konstante ' . $this->name;
+    }
+
+    public function features(): array
+    {
+        return $this->features;
+    }
+}
diff --git a/src/Integrations/Divi/Release/DiviFeature.php b/src/Integrations/Divi/Release/DiviFeature.php
new file mode 100644
index 0000000..1762e35
--- /dev/null
+++ b/src/Integrations/Divi/Release/DiviFeature.php
@@ -0,0 +1,56 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LIT\MCP\Integrations\Divi\Release;
+
+defined('ABSPATH') || exit;
+
+// The installed PHPCompatibility sniffs predate enums (PHP 8.1) and read their methods as plain functions.
+// phpcs:disable PHPCompatibility.Variables.ForbiddenThisUseContexts.OutsideObjectContext
+
+/**
+ * What the plugin can do with Divi, as far as a Divi update may break it separately: every manifest entry (call,
+ * mirror, constant) belongs to one or more features, and the release gate decides per feature.
+ */
+enum DiviFeature: string
+{
+    case PageRead = 'page-read';
+    case PageWrite = 'page-write';
+    case Catalog = 'catalog';
+    case DynamicSources = 'dynamic-sources';
+    case DesignRead = 'design-read';
+    case PresetWrite = 'preset-write';
+    case LibraryRead = 'library-read';
+    case LibraryWrite = 'library-write';
+    case Roles = 'roles';
+    case ThemeBuilderRead = 'tb-read';
+    case ThemeBuilderWrite = 'tb-write';
+
+    /** Whether the feature changes data (the four *Write cases). */
+    public function isWrite(): bool
+    {
+        return match ($this) {
+            self::PageWrite, self::PresetWrite, self::LibraryWrite, self::ThemeBuilderWrite => true,
+            default => false,
+        };
+    }
+
+    /** Name for messages, the status tool and the admin tab (German). */
+    public function label(): string
+    {
+        return match ($this) {
+            self::PageRead => 'Seiten lesen',
+            self::PageWrite => 'Seiten schreiben',
+            self::Catalog => 'Modulkatalog',
+            self::DynamicSources => 'Dynamische Inhalte',
+            self::DesignRead => 'Designsystem lesen',
+            self::PresetWrite => 'Presets schreiben',
+            self::LibraryRead => 'Bibliothek lesen',
+            self::LibraryWrite => 'Bibliothek schreiben',
+            self::Roles => 'Divi-Rollen',
+            self::ThemeBuilderRead => 'Theme Builder lesen',
+            self::ThemeBuilderWrite => 'Theme Builder schreiben',
+        };
+    }
+}
diff --git a/src/Integrations/Divi/Release/Manifest.php b/src/Integrations/Divi/Release/Manifest.php
index 7819a0e..e84cd9c 100644
--- a/src/Integrations/Divi/Release/Manifest.php
+++ b/src/Integrations/Divi/Release/Manifest.php
@@ -18,27 +18,56 @@ final class Manifest
     public const DESIGN = 'Designsystem';
     public const CATALOG = 'Katalog';
 
+    /** @var list<ConstantRequirement> */
+    public readonly array $constants;
+
     /**
-     * @param string       $area       One of the constants above (the five areas of spec §3).
-     * @param list<Call>   $calls      Divi functions and static methods the adapter calls.
-     * @param list<string> $constants  Divi constants it reads.
-     * @param list<string> $postTypes  Divi post types it needs registered.
-     * @param list<string> $taxonomies Divi taxonomies it needs registered.
-     * @param list<string> $blockTypes Divi block types it needs (registered or in Divi's module metadata).
-     * @param list<string> $keys       Other Divi names it uses as strings: meta keys, options, internal post
-     *                                 types that need no registration check, query arguments.
-     * @param list<Mirror> $mirrors    Divi functions whose storage logic it repeats.
+     * @param string                           $area       One of the constants above (the five areas of spec §3).
+     * @param list<Call>                       $calls      Divi functions and static methods the adapter calls.
+     * @param list<string|ConstantRequirement> $constants  Divi constants it reads; a plain name stands for a
+     *                                                     ConstantRequirement without features of its own.
+     * @param list<string>                     $postTypes  Divi post types it needs registered.
+     * @param list<string>                     $taxonomies Divi taxonomies it needs registered.
+     * @param list<string>                     $blockTypes Divi block types it needs (registered or in Divi's
+     *                                                     module metadata).
+     * @param list<string>                     $keys       Other Divi names it uses as strings: meta keys, options,
+     *                                                     internal post types that need no registration check,
+     *                                                     query arguments.
+     * @param list<Mirror>                     $mirrors    Divi functions whose storage logic it repeats.
+     * @param list<DiviFeature>                $features   The features of every call, mirror and constant that names
+     *                                                     none itself (featuresOf()).
      */
     public function __construct(
         public readonly string $area,
         public readonly array $calls = [],
-        public readonly array $constants = [],
+        array $constants = [],
         public readonly array $postTypes = [],
         public readonly array $taxonomies = [],
         public readonly array $blockTypes = [],
         public readonly array $keys = [],
-        public readonly array $mirrors = []
+        public readonly array $mirrors = [],
+        public readonly array $features = []
     ) {
+        $this->constants = array_map(
+            static fn (string|ConstantRequirement $constant): ConstantRequirement => is_string($constant)
+                ? new ConstantRequirement($constant)
+                : $constant,
+            array_values($constants)
+        );
+    }
+
+    /** @return list<Requirement> Calls, constants and mirrors – everything the release gate checks as code. */
+    public function requirements(): array
+    {
+        return [...$this->calls, ...$this->constants, ...$this->mirrors];
+    }
+
+    /** @return list<DiviFeature> The features $requirement names itself, else this manifest's default. */
+    public function featuresOf(Requirement $requirement): array
+    {
+        $own = $requirement->features();
+
+        return $own !== [] ? $own : $this->features;
     }
 
     /**
@@ -51,11 +80,12 @@ final class Manifest
         foreach ($this->calls as $call) {
             $names[] = $call->className() ?? $call->member();
         }
+        $constants = array_map(static fn (ConstantRequirement $constant): string => $constant->name, $this->constants);
         $mirrored = array_map(static fn (Mirror $mirror): string => $mirror->function, $this->mirrors);
 
         return array_values(array_unique(array_merge(
             $names,
-            $this->constants,
+            $constants,
             $this->postTypes,
             $this->taxonomies,
             $this->keys,
diff --git a/src/Integrations/Divi/Release/ManifestCheck.php b/src/Integrations/Divi/Release/ManifestCheck.php
index 352e8da..f765077 100644
--- a/src/Integrations/Divi/Release/ManifestCheck.php
+++ b/src/Integrations/Divi/Release/ManifestCheck.php
@@ -57,7 +57,8 @@ class ManifestCheck
                 $checks[$manifest->area . ': ' . $call->label()] = static fn (): bool => self::accepts($call);
             }
             foreach ($manifest->constants as $constant) {
-                $checks[$manifest->area . ': Konstante ' . $constant] = static fn (): bool => defined($constant);
+                $checks[$manifest->area . ': ' . $constant->label()] =
+                    static fn (): bool => defined($constant->name);
             }
         }
 
diff --git a/src/Integrations/Divi/Release/Mirror.php b/src/Integrations/Divi/Release/Mirror.php
index 95bc431..e6f42bb 100644
--- a/src/Integrations/Divi/Release/Mirror.php
+++ b/src/Integrations/Divi/Release/Mirror.php
@@ -10,25 +10,33 @@ defined('ABSPATH') || exit;
  * A Divi function whose storage logic an adapter repeats instead of calling it (spec §4.1 "mirrors"). Its
  * fingerprint (SourceFingerprint) must match the one in fingerprints.json, else Divi changed what we copy.
  */
-final class Mirror
+final class Mirror implements Requirement
 {
     /**
-     * @param string      $id       Key in fingerprints.json and name of tests/Fixtures/divi/reference/<id>.txt.
-     * @param string      $file     Divi file, relative to the Divi theme directory.
-     * @param string      $function Function or method name.
-     * @param string|null $class    Class of a method – the short name is enough (the file fixes where it
-     *                              lives, and a short name is no Divi name for DiviBoundaryTest); null for a function.
-     * @param string      $what     What the plugin repeats (German, for reports).
+     * @param string            $id       Key in fingerprints.json and name of tests/Fixtures/divi/reference/<id>.txt.
+     * @param string            $file     Divi file, relative to the Divi theme directory.
+     * @param string            $function Function or method name.
+     * @param string|null       $class    Class of a method – the short name is enough (the file fixes where it
+     *                                    lives, and a short name is no Divi name for DiviBoundaryTest); null for a
+     *                                    function.
+     * @param string            $what     What the plugin repeats (German, for reports).
+     * @param list<DiviFeature> $features [] = the default of the manifest.
      */
     public function __construct(
         public readonly string $id,
         public readonly string $file,
         public readonly string $function,
         public readonly ?string $class,
-        public readonly string $what
+        public readonly string $what,
+        private readonly array $features = []
     ) {
     }
 
+    public function features(): array
+    {
+        return $this->features;
+    }
+
     public function label(): string
     {
         $class = $this->class === null ? '' : SourceFingerprint::shortName($this->class) . '::';
diff --git a/src/Integrations/Divi/Release/Requirement.php b/src/Integrations/Divi/Release/Requirement.php
new file mode 100644
index 0000000..b119701
--- /dev/null
+++ b/src/Integrations/Divi/Release/Requirement.php
@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LIT\MCP\Integrations\Divi\Release;
+
+defined('ABSPATH') || exit;
+
+/** One thing an adapter needs from Divi (a call, a mirrored function or a constant) and the features it serves. */
+interface Requirement
+{
+    /** Name for reports, e.g. "GlobalPreset::get_data()" (without the manifest area). */
+    public function label(): string;
+
+    /**
+     * The features this requirement serves itself; [] = the default of the manifest that lists it
+     * (Manifest::featuresOf() resolves that).
+     *
+     * @return list<DiviFeature>
+     */
+    public function features(): array;
+}
diff --git a/src/Integrations/Divi/Schema/DiviModules.php b/src/Integrations/Divi/Schema/DiviModules.php
index 1339ba1..feaeeed 100644
--- a/src/Integrations/Divi/Schema/DiviModules.php
+++ b/src/Integrations/Divi/Schema/DiviModules.php
@@ -9,6 +9,7 @@ use LIT\MCP\Integrations\Divi\BlockTree\GlobalInstance;
 use LIT\MCP\Integrations\Divi\Library\DiviLibraryStore;
 use LIT\MCP\Integrations\Divi\Release\Call;
 use LIT\MCP\Integrations\Divi\Release\DiviAdapter;
+use LIT\MCP\Integrations\Divi\Release\DiviFeature;
 use LIT\MCP\Integrations\Divi\Release\Manifest;
 use LIT\MCP\Integrations\Divi\ThemeBuilder\DiviThemeBuilder;
 
@@ -46,7 +47,8 @@ class DiviModules implements DiviAdapter
             ],
             constants: ['ET_BUILDER_PRODUCT_VERSION'],
             blockTypes: [GlobalInstance::BLOCK],
-            keys: ['et_pb_canvas', '_et_pb_speculation']
+            keys: ['et_pb_canvas', '_et_pb_speculation'],
+            features: [DiviFeature::Catalog]
         );
     }
 
diff --git a/src/Integrations/Divi/ThemeBuilder/DiviThemeBuilder.php b/src/Integrations/Divi/ThemeBuilder/DiviThemeBuilder.php
index 29dbd55..d573431 100644
--- a/src/Integrations/Divi/ThemeBuilder/DiviThemeBuilder.php
+++ b/src/Integrations/Divi/ThemeBuilder/DiviThemeBuilder.php
@@ -6,6 +6,7 @@ namespace LIT\MCP\Integrations\Divi\ThemeBuilder;
 
 use LIT\MCP\Integrations\Divi\Release\Call;
 use LIT\MCP\Integrations\Divi\Release\DiviAdapter;
+use LIT\MCP\Integrations\Divi\Release\DiviFeature;
 use LIT\MCP\Integrations\Divi\Release\DiviLocked;
 use LIT\MCP\Integrations\Divi\Release\Manifest;
 use LIT\MCP\Integrations\Divi\Release\Mirror;
@@ -84,16 +85,31 @@ class DiviThemeBuilder implements DiviAdapter
         return new Manifest(
             Manifest::THEME_BUILDER,
             calls: [
-                new Call('et_theme_builder_get_theme_builder_post_id', 2),
+                // liveId(): reads the live post, or creates it like Divi's first save.
+                new Call(
+                    'et_theme_builder_get_theme_builder_post_id',
+                    2,
+                    [DiviFeature::ThemeBuilderRead, DiviFeature::ThemeBuilderWrite]
+                ),
                 new Call('et_theme_builder_get_theme_builder_template_ids', 2),
                 new Call('et_theme_builder_get_template', 1),
-                new Call('et_theme_builder_insert_layout', 1),
-                new Call('et_theme_builder_store_template', 3),
+                new Call('et_theme_builder_insert_layout', 1, [DiviFeature::ThemeBuilderWrite]),
+                new Call('et_theme_builder_store_template', 3, [DiviFeature::ThemeBuilderWrite]),
                 new Call('et_theme_builder_get_flat_template_settings_options', 0),
-                new Call('et_theme_builder_clear_wp_cache', 1),
+                // clearSiteCaches() also runs after every page save with a site-wide scope (DiviSaver).
+                new Call(
+                    'et_theme_builder_clear_wp_cache',
+                    1,
+                    [DiviFeature::ThemeBuilderWrite, DiviFeature::PageWrite]
+                ),
                 // store_template needs Divi's et_() helper (E15).
-                new Call('et_'),
-                new Call('ET_Core_PageResource::remove_static_resources', 3),
+                new Call('et_', null, [DiviFeature::ThemeBuilderWrite]),
+                // Also called by DiviPages::clearPageCss() – a break locks both features.
+                new Call(
+                    'ET_Core_PageResource::remove_static_resources',
+                    3,
+                    [DiviFeature::ThemeBuilderWrite, DiviFeature::PageWrite]
+                ),
             ],
             postTypes: self::postTypes(),
             keys: [
@@ -106,23 +122,27 @@ class DiviThemeBuilder implements DiviAdapter
                     'et_theme_builder_api_save',
                     null,
                     'Vorlagenliste des Live-Theme-Builders (_et_template mit Sicherung et_tb_templates_backup_) und '
-                        . '„ungenutzt“-Markierung'
+                        . '„ungenutzt“-Markierung',
+                    [DiviFeature::ThemeBuilderWrite]
                 ),
                 new Mirror(
                     'tb-store-template',
                     $dir . 'theme-builder.php',
                     'et_theme_builder_store_template',
                     null,
-                    'Bedingungen (_et_use_on, _et_exclude_from) und Aktiv-Schalter (_et_enabled) einer Vorlage'
+                    'Bedingungen (_et_use_on, _et_exclude_from) und Aktiv-Schalter (_et_enabled) einer Vorlage',
+                    [DiviFeature::ThemeBuilderWrite]
                 ),
                 new Mirror(
                     'tb-load-setting-options',
                     $dir . 'theme-builder.php',
                     'et_theme_builder_load_template_setting_options',
                     null,
-                    'Zerlegen der Bedingungs-IDs (TemplateConditions)'
+                    'Zerlegen der Bedingungs-IDs (TemplateConditions)',
+                    [DiviFeature::ThemeBuilderRead, DiviFeature::ThemeBuilderWrite]
                 ),
-            ]
+            ],
+            features: [DiviFeature::ThemeBuilderRead]
         );
     }
 
diff --git a/tests/Unit/Integrations/Divi/Release/DiviFeatureAssignmentTest.php b/tests/Unit/Integrations/Divi/Release/DiviFeatureAssignmentTest.php
new file mode 100644
index 0000000..2222da6
--- /dev/null
+++ b/tests/Unit/Integrations/Divi/Release/DiviFeatureAssignmentTest.php
@@ -0,0 +1,163 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LIT\MCP\Tests\Unit\Integrations\Divi\Release;
+
+use LIT\MCP\Integrations\Divi\Design\DesignSystemReader;
+use LIT\MCP\Integrations\Divi\Design\DesignSystemWriter;
+use LIT\MCP\Integrations\Divi\Library\DiviLibraryStore;
+use LIT\MCP\Integrations\Divi\Library\DiviRoles;
+use LIT\MCP\Integrations\Divi\Pages\DiviPages;
+use LIT\MCP\Integrations\Divi\Pages\DynamicContentMap;
+use LIT\MCP\Integrations\Divi\Release\DiviAdapters;
+use LIT\MCP\Integrations\Divi\Release\DiviFeature;
+use LIT\MCP\Integrations\Divi\Release\Mirror;
+use LIT\MCP\Integrations\Divi\Schema\DiviModules;
+use LIT\MCP\Integrations\Divi\ThemeBuilder\DiviThemeBuilder;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Every manifest entry of every adapter names the Divi features it serves (D2 of the plan "Divi-Fähigkeiten"), and
+ * the assignment is pinned here: a changed tag shows up in review as a changed row of this table.
+ */
+final class DiviFeatureAssignmentTest extends TestCase
+{
+    /** Adapter => requirement ("Nachbau " before a mirror's label) => features (sorted values). */
+    private const EXPECTED = [
+        DiviPages::class => [
+            'ET_Core_PageResource::remove_static_resources()' => ['page-write', 'tb-write'],
+            'et_builder_get_public_post_types()' => ['page-write'],
+            'Nachbau SyncToServerController::update()' => ['page-write'],
+        ],
+        DiviLibraryStore::class => [
+            'GlobalLayout::is_global_layout_template()' => ['library-read', 'library-write'],
+            'Nachbau et_pb_submit_layout()' => ['library-write'],
+        ],
+        DiviRoles::class => [
+            'et_pb_is_allowed()' => ['roles'],
+        ],
+        DiviThemeBuilder::class => [
+            'et_theme_builder_get_theme_builder_post_id()' => ['tb-read', 'tb-write'],
+            'et_theme_builder_get_theme_builder_template_ids()' => ['tb-read'],
+            'et_theme_builder_get_template()' => ['tb-read'],
+            'et_theme_builder_insert_layout()' => ['tb-write'],
+            'et_theme_builder_store_template()' => ['tb-write'],
+            'et_theme_builder_get_flat_template_settings_options()' => ['tb-read'],
+            'et_theme_builder_clear_wp_cache()' => ['page-write', 'tb-write'],
+            'et_()' => ['tb-write'],
+            'ET_Core_PageResource::remove_static_resources()' => ['page-write', 'tb-write'],
+            'Nachbau et_theme_builder_api_save()' => ['tb-write'],
+            'Nachbau et_theme_builder_store_template()' => ['tb-write'],
+            'Nachbau et_theme_builder_load_template_setting_options()' => ['tb-read', 'tb-write'],
+        ],
+        DesignSystemReader::class => [
+            'GlobalData::get_global_colors()' => ['design-read', 'page-read'],
+            'GlobalData::get_global_variables()' => ['design-read', 'page-read'],
+            'GlobalPreset::get_data()' => ['design-read', 'page-read'],
+        ],
+        DesignSystemWriter::class => [
+            'GlobalPreset::get_data()' => ['design-read', 'preset-write'],
+            'GlobalPreset::prepare_data()' => ['preset-write'],
+            'GlobalPreset::validate_preset_count()' => ['preset-write'],
+            'GlobalPreset::get_deleted_preset_ids()' => ['preset-write'],
+            'GlobalPreset::remove_preset_from_legacy_option()' => ['preset-write'],
+            'GlobalPreset::save_data()' => ['preset-write'],
+            'Conversion::get_preset_attrs_mapping()' => ['preset-write'],
+            'Conversion::get_preset_attrs()' => ['preset-write'],
+            'GlobalPreset::get_group_preset_default_attr()' => ['catalog', 'preset-write'],
+            'ModuleRegistration::get_module_settings()' => ['catalog', 'preset-write'],
+            'UserRole::can_current_user_use_visual_builder()' => ['preset-write'],
+            'Nachbau GlobalPresetController::sync()' => ['preset-write'],
+        ],
+        DiviModules::class => [
+            'ModuleRegistration::get_all_core_modules_metadata()' => ['catalog'],
+            'ModuleRegistration::get_default_attrs()' => ['catalog'],
+            'et_builder_enabled_for_post_type()' => ['catalog'],
+            'Konstante ET_BUILDER_PRODUCT_VERSION' => ['catalog'],
+        ],
+        DynamicContentMap::class => [
+            'DynamicContentOptions::get_options()' => ['dynamic-sources'],
+        ],
+    ];
+
+    public function testEveryRequirementOfEveryAdapterServesAtLeastOneFeature(): void
+    {
+        $bare = [];
+        foreach (DiviAdapters::manifests() as $class => $manifest) {
+            foreach ($manifest->requirements() as $requirement) {
+                $features = $manifest->featuresOf($requirement);
+                if ($features === [] || array_unique($features, SORT_REGULAR) !== $features) {
+                    $bare[] = $class . ': ' . $requirement->label();
+                }
+            }
+        }
+
+        self::assertSame([], $bare, "Anforderungen ohne (eindeutige) Fähigkeit:\n" . implode("\n", $bare));
+    }
+
+    public function testEveryFeatureIsServedByAtLeastOneRequirement(): void
+    {
+        $served = [];
+        foreach (DiviAdapters::manifests() as $manifest) {
+            foreach ($manifest->requirements() as $requirement) {
+                foreach ($manifest->featuresOf($requirement) as $feature) {
+                    $served[$feature->value] = true;
+                }
+            }
+        }
+
+        $missing = array_values(array_diff(
+            array_map(static fn (DiviFeature $feature): string => $feature->value, DiviFeature::cases()),
+            array_keys($served)
+        ));
+
+        self::assertSame([], $missing, 'Fähigkeiten ohne Anforderung in einem Manifest');
+    }
+
+    public function testTheAssignmentIsThePinnedTable(): void
+    {
+        $actual = [];
+        foreach (DiviAdapters::manifests() as $class => $manifest) {
+            foreach ($manifest->requirements() as $requirement) {
+                $values = array_map(
+                    static fn (DiviFeature $feature): string => $feature->value,
+                    $manifest->featuresOf($requirement)
+                );
+                sort($values);
+                $name = ($requirement instanceof Mirror ? 'Nachbau ' : '') . $requirement->label();
+                $actual[$class][$name] = $values;
+            }
+        }
+
+        self::assertSame(self::EXPECTED, $actual);
+        self::assertSame(array_keys(self::EXPECTED), DiviAdapters::CLASSES, 'all eight adapters, in report order');
+    }
+
+    public function testReadingAdaptersCarryNoWriteFeature(): void
+    {
+        $readingOnly = [DesignSystemReader::class, DiviRoles::class, DiviModules::class, DynamicContentMap::class];
+
+        foreach ($readingOnly as $class) {
+            $manifest = DiviAdapters::manifests()[$class];
+            foreach ($manifest->requirements() as $requirement) {
+                foreach ($manifest->featuresOf($requirement) as $feature) {
+                    self::assertFalse($feature->isWrite(), $class . ': ' . $requirement->label());
+                }
+            }
+        }
+    }
+
+    public function testEveryMirrorServesAWriteFeature(): void
+    {
+        foreach (DiviAdapters::manifests() as $class => $manifest) {
+            foreach ($manifest->mirrors as $mirror) {
+                $writes = array_filter(
+                    $manifest->featuresOf($mirror),
+                    static fn (DiviFeature $feature): bool => $feature->isWrite()
+                );
+                self::assertNotSame([], $writes, $class . ': Nachbau ' . $mirror->id . ' dient keinem Schreib-Feature');
+            }
+        }
+    }
+}
diff --git a/tests/Unit/Integrations/Divi/Release/DiviFeatureTest.php b/tests/Unit/Integrations/Divi/Release/DiviFeatureTest.php
new file mode 100644
index 0000000..37e3c7b
--- /dev/null
+++ b/tests/Unit/Integrations/Divi/Release/DiviFeatureTest.php
@@ -0,0 +1,62 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LIT\MCP\Tests\Unit\Integrations\Divi\Release;
+
+use LIT\MCP\Integrations\Divi\Release\DiviFeature;
+use PHPUnit\Framework\TestCase;
+
+final class DiviFeatureTest extends TestCase
+{
+    public function testTheElevenFeaturesAndTheirValues(): void
+    {
+        self::assertSame(
+            [
+                'PageRead' => 'page-read',
+                'PageWrite' => 'page-write',
+                'Catalog' => 'catalog',
+                'DynamicSources' => 'dynamic-sources',
+                'DesignRead' => 'design-read',
+                'PresetWrite' => 'preset-write',
+                'LibraryRead' => 'library-read',
+                'LibraryWrite' => 'library-write',
+                'Roles' => 'roles',
+                'ThemeBuilderRead' => 'tb-read',
+                'ThemeBuilderWrite' => 'tb-write',
+            ],
+            array_column(array_map(
+                static fn (DiviFeature $feature): array => [$feature->name, $feature->value],
+                DiviFeature::cases()
+            ), 1, 0)
+        );
+    }
+
+    public function testOnlyTheFourWriteFeaturesWrite(): void
+    {
+        $writing = array_values(array_map(
+            static fn (DiviFeature $feature): string => $feature->value,
+            array_filter(DiviFeature::cases(), static fn (DiviFeature $feature): bool => $feature->isWrite())
+        ));
+
+        self::assertSame(['page-write', 'preset-write', 'library-write', 'tb-write'], $writing);
+    }
+
+    public function testEveryFeatureHasAUniqueGermanLabel(): void
+    {
+        $labels = array_map(static fn (DiviFeature $feature): string => $feature->label(), DiviFeature::cases());
+
+        self::assertCount(count(DiviFeature::cases()), array_unique($labels));
+        self::assertSame('Seiten schreiben', DiviFeature::PageWrite->label());
+        self::assertSame('Theme Builder lesen', DiviFeature::ThemeBuilderRead->label());
+        foreach ($labels as $label) {
+            self::assertNotSame('', trim($label));
+        }
+    }
+
+    public function testValuesResolveBackToTheFeature(): void
+    {
+        self::assertSame(DiviFeature::ThemeBuilderWrite, DiviFeature::from('tb-write'));
+        self::assertNull(DiviFeature::tryFrom('page'));
+    }
+}
diff --git a/tests/Unit/Integrations/Divi/Release/ManifestTest.php b/tests/Unit/Integrations/Divi/Release/ManifestTest.php
index 49807fb..8742180 100644
--- a/tests/Unit/Integrations/Divi/Release/ManifestTest.php
+++ b/tests/Unit/Integrations/Divi/Release/ManifestTest.php
@@ -5,6 +5,8 @@ declare(strict_types=1);
 namespace LIT\MCP\Tests\Unit\Integrations\Divi\Release;
 
 use LIT\MCP\Integrations\Divi\Release\Call;
+use LIT\MCP\Integrations\Divi\Release\ConstantRequirement;
+use LIT\MCP\Integrations\Divi\Release\DiviFeature;
 use LIT\MCP\Integrations\Divi\Release\Manifest;
 use LIT\MCP\Integrations\Divi\Release\Mirror;
 use PHPUnit\Framework\TestCase;
@@ -53,4 +55,61 @@ final class ManifestTest extends TestCase
         );
         self::assertSame('Bibliothek', $manifest->area);
     }
+
+    public function testPlainConstantNamesBecomeRequirementsWithALabel(): void
+    {
+        $manifest = new Manifest(
+            Manifest::CATALOG,
+            constants: ['ET_BUILDER_PRODUCT_VERSION', new ConstantRequirement('ET_OTHER', [DiviFeature::Roles])]
+        );
+
+        self::assertSame(
+            ['ET_BUILDER_PRODUCT_VERSION', 'ET_OTHER'],
+            array_map(static fn (ConstantRequirement $constant): string => $constant->name, $manifest->constants)
+        );
+        self::assertSame('Konstante ET_OTHER', $manifest->constants[1]->label());
+        self::assertSame([], $manifest->constants[0]->features());
+        self::assertSame([DiviFeature::Roles], $manifest->constants[1]->features());
+        self::assertSame(['ET_BUILDER_PRODUCT_VERSION', 'ET_OTHER'], $manifest->names());
+    }
+
+    public function testRequirementsAreCallsConstantsAndMirrorsInThatOrder(): void
+    {
+        $call = new Call('et_pb_is_allowed', 1);
+        $mirror = new Mirror('m', 'a.php', 'a', null, 'Terme');
+        $manifest = new Manifest(Manifest::LIBRARY, calls: [$call], constants: ['ET_X'], mirrors: [$mirror]);
+
+        $requirements = $manifest->requirements();
+
+        self::assertCount(3, $requirements);
+        self::assertSame($call, $requirements[0]);
+        self::assertSame('Konstante ET_X', $requirements[1]->label());
+        self::assertSame($mirror, $requirements[2]);
+    }
+
+    public function testFeaturesOfPrefersTheOwnFeaturesOverTheManifestDefault(): void
+    {
+        $own = new Call('et_a', null, [DiviFeature::PageWrite, DiviFeature::ThemeBuilderWrite]);
+        $inherited = new Call('et_b');
+        $mirror = new Mirror('m', 'a.php', 'a', null, 'x', [DiviFeature::LibraryWrite]);
+        $manifest = new Manifest(
+            Manifest::PAGES,
+            calls: [$own, $inherited],
+            constants: ['ET_X'],
+            mirrors: [$mirror],
+            features: [DiviFeature::PageRead]
+        );
+
+        self::assertSame([DiviFeature::PageWrite, DiviFeature::ThemeBuilderWrite], $manifest->featuresOf($own));
+        self::assertSame([DiviFeature::PageRead], $manifest->featuresOf($inherited));
+        self::assertSame([DiviFeature::PageRead], $manifest->featuresOf($manifest->constants[0]));
+        self::assertSame([DiviFeature::LibraryWrite], $manifest->featuresOf($mirror));
+    }
+
+    public function testWithoutAnyFeaturesAnEntryHasNone(): void
+    {
+        $call = new Call('et_a');
+
+        self::assertSame([], (new Manifest(Manifest::PAGES, calls: [$call]))->featuresOf($call));
+    }
 }
diff --git a/tests/Unit/Integrations/Divi/Schema/DiviModulesTest.php b/tests/Unit/Integrations/Divi/Schema/DiviModulesTest.php
index 0fd1d5b..a0501a7 100644
--- a/tests/Unit/Integrations/Divi/Schema/DiviModulesTest.php
+++ b/tests/Unit/Integrations/Divi/Schema/DiviModulesTest.php
@@ -7,6 +7,7 @@ namespace LIT\MCP\Tests\Unit\Integrations\Divi\Schema;
 use Brain\Monkey\Functions;
 use LIT\MCP\Integrations\Divi\Pages\DynamicContentMap;
 use LIT\MCP\Integrations\Divi\Release\Call;
+use LIT\MCP\Integrations\Divi\Release\ConstantRequirement;
 use LIT\MCP\Integrations\Divi\Release\DiviAdapters;
 use LIT\MCP\Integrations\Divi\Release\Manifest;
 use LIT\MCP\Integrations\Divi\Schema\DiviModules;
@@ -35,7 +36,10 @@ final class DiviModulesTest extends TestCase
             array_map(static fn (Call $call): string => $call->label(), $manifest->calls)
         );
         self::assertSame(['divi/global-layout'], $manifest->blockTypes);
-        self::assertSame(['ET_BUILDER_PRODUCT_VERSION'], $manifest->constants);
+        self::assertSame(
+            ['ET_BUILDER_PRODUCT_VERSION'],
+            array_map(static fn (ConstantRequirement $constant): string => $constant->name, $manifest->constants)
+        );
     }
 
     public function testInternalPostTypesAreDivisOwn(): void