diff --git a/lib/composer/composer/autoload_classmap.php b/lib/composer/composer/autoload_classmap.php
index ee77fbd4cda82..115e8babde21a 100644
--- a/lib/composer/composer/autoload_classmap.php
+++ b/lib/composer/composer/autoload_classmap.php
@@ -871,6 +871,7 @@
     'OCP\\TaskProcessing\\Exception\\ProcessingException' => $baseDir . '/lib/public/TaskProcessing/Exception/ProcessingException.php',
     'OCP\\TaskProcessing\\Exception\\UnauthorizedException' => $baseDir . '/lib/public/TaskProcessing/Exception/UnauthorizedException.php',
     'OCP\\TaskProcessing\\Exception\\ValidationException' => $baseDir . '/lib/public/TaskProcessing/Exception/ValidationException.php',
+    'OCP\\TaskProcessing\\IInternalTaskType' => $baseDir . '/lib/public/TaskProcessing/IInternalTaskType.php',
     'OCP\\TaskProcessing\\IManager' => $baseDir . '/lib/public/TaskProcessing/IManager.php',
     'OCP\\TaskProcessing\\IProvider' => $baseDir . '/lib/public/TaskProcessing/IProvider.php',
     'OCP\\TaskProcessing\\ISynchronousProvider' => $baseDir . '/lib/public/TaskProcessing/ISynchronousProvider.php',
diff --git a/lib/composer/composer/autoload_static.php b/lib/composer/composer/autoload_static.php
index 3b18f00da9697..0354cc2097da3 100644
--- a/lib/composer/composer/autoload_static.php
+++ b/lib/composer/composer/autoload_static.php
@@ -912,6 +912,7 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OCP\\TaskProcessing\\Exception\\ProcessingException' => __DIR__ . '/../../..' . '/lib/public/TaskProcessing/Exception/ProcessingException.php',
         'OCP\\TaskProcessing\\Exception\\UnauthorizedException' => __DIR__ . '/../../..' . '/lib/public/TaskProcessing/Exception/UnauthorizedException.php',
         'OCP\\TaskProcessing\\Exception\\ValidationException' => __DIR__ . '/../../..' . '/lib/public/TaskProcessing/Exception/ValidationException.php',
+        'OCP\\TaskProcessing\\IInternalTaskType' => __DIR__ . '/../../..' . '/lib/public/TaskProcessing/IInternalTaskType.php',
         'OCP\\TaskProcessing\\IManager' => __DIR__ . '/../../..' . '/lib/public/TaskProcessing/IManager.php',
         'OCP\\TaskProcessing\\IProvider' => __DIR__ . '/../../..' . '/lib/public/TaskProcessing/IProvider.php',
         'OCP\\TaskProcessing\\ISynchronousProvider' => __DIR__ . '/../../..' . '/lib/public/TaskProcessing/ISynchronousProvider.php',
diff --git a/lib/private/TaskProcessing/Manager.php b/lib/private/TaskProcessing/Manager.php
index d67b025d5edc0..371b1ab7eaf8f 100644
--- a/lib/private/TaskProcessing/Manager.php
+++ b/lib/private/TaskProcessing/Manager.php
@@ -51,6 +51,7 @@
 use OCP\TaskProcessing\Exception\ProcessingException;
 use OCP\TaskProcessing\Exception\UnauthorizedException;
 use OCP\TaskProcessing\Exception\ValidationException;
+use OCP\TaskProcessing\IInternalTaskType;
 use OCP\TaskProcessing\IManager;
 use OCP\TaskProcessing\IProvider;
 use OCP\TaskProcessing\ISynchronousProvider;
@@ -88,7 +89,7 @@ class Manager implements IManager {
 	private ?array $providers = null;
 
 	/**
-	 * @var array<array-key,array{name: string, description: string, inputShape: ShapeDescriptor[], inputShapeEnumValues: ShapeEnumValue[][], inputShapeDefaults: array<array-key, numeric|string>, optionalInputShape: ShapeDescriptor[], optionalInputShapeEnumValues: ShapeEnumValue[][], optionalInputShapeDefaults: array<array-key, numeric|string>, outputShape: ShapeDescriptor[], outputShapeEnumValues: ShapeEnumValue[][], optionalOutputShape: ShapeDescriptor[], optionalOutputShapeEnumValues: ShapeEnumValue[][]}>
+	 * @var array<array-key,array{name: string, description: string, inputShape: ShapeDescriptor[], inputShapeEnumValues: ShapeEnumValue[][], inputShapeDefaults: array<array-key, numeric|string>, isInternal: bool, optionalInputShape: ShapeDescriptor[], optionalInputShapeEnumValues: ShapeEnumValue[][], optionalInputShapeDefaults: array<array-key, numeric|string>, outputShape: ShapeDescriptor[], outputShapeEnumValues: ShapeEnumValue[][], optionalOutputShape: ShapeDescriptor[], optionalOutputShapeEnumValues: ShapeEnumValue[][]}>
 	 */
 	private ?array $availableTaskTypes = null;
 
@@ -878,6 +879,7 @@ public function getAvailableTaskTypes(bool $showDisabled = false, ?string $userI
 						'outputShapeEnumValues' => $provider->getOutputShapeEnumValues(),
 						'optionalOutputShape' => $provider->getOptionalOutputShape(),
 						'optionalOutputShapeEnumValues' => $provider->getOptionalOutputShapeEnumValues(),
+						'isInternal' => $taskType instanceof IInternalTaskType,
 					];
 				} catch (\Throwable $e) {
 					$this->logger->error('Failed to set up TaskProcessing provider ' . $provider::class, ['exception' => $e]);
diff --git a/lib/public/TaskProcessing/IInternalTaskType.php b/lib/public/TaskProcessing/IInternalTaskType.php
new file mode 100644
index 0000000000000..56c53d5a8420b
--- /dev/null
+++ b/lib/public/TaskProcessing/IInternalTaskType.php
@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2025 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCP\TaskProcessing;
+
+/**
+ * This is a task type interface that is implemented by task processing
+ * task types that should not show up in the assistant UI
+ * @since 33.0.0
+ */
+interface IInternalTaskType extends ITaskType {
+
+}
diff --git a/lib/public/TaskProcessing/IManager.php b/lib/public/TaskProcessing/IManager.php
index 28beeafc88474..c8f86364c3503 100644
--- a/lib/public/TaskProcessing/IManager.php
+++ b/lib/public/TaskProcessing/IManager.php
@@ -49,10 +49,11 @@ public function getPreferredProvider(string $taskTypeId);
 	/**
 	 * @param bool $showDisabled if false, disabled task types will be filtered out
 	 * @param ?string $userId to check if the user is a guest. Will be obtained from session if left to default
-	 * @return array<string, array{name: string, description: string, inputShape: ShapeDescriptor[], inputShapeEnumValues: ShapeEnumValue[][], inputShapeDefaults: array<array-key, numeric|string>, optionalInputShape: ShapeDescriptor[], optionalInputShapeEnumValues: ShapeEnumValue[][], optionalInputShapeDefaults: array<array-key, numeric|string>, outputShape: ShapeDescriptor[], outputShapeEnumValues: ShapeEnumValue[][], optionalOutputShape: ShapeDescriptor[], optionalOutputShapeEnumValues: ShapeEnumValue[][]}>
+	 * @return array<string, array{name: string, description: string, inputShape: ShapeDescriptor[], inputShapeEnumValues: ShapeEnumValue[][], inputShapeDefaults: array<array-key, numeric|string>, isInternal: bool, optionalInputShape: ShapeDescriptor[], optionalInputShapeEnumValues: ShapeEnumValue[][], optionalInputShapeDefaults: array<array-key, numeric|string>, outputShape: ShapeDescriptor[], outputShapeEnumValues: ShapeEnumValue[][], optionalOutputShape: ShapeDescriptor[], optionalOutputShapeEnumValues: ShapeEnumValue[][]}>
 	 * @since 30.0.0
 	 * @since 31.0.0 Added the `showDisabled` argument.
 	 * @since 31.0.7 Added the `userId` argument
+	 * @since 33.0.0 Added `isInternal` to return value
 	 */
 	public function getAvailableTaskTypes(bool $showDisabled = false, ?string $userId = null): array;
 
diff --git a/lib/public/TaskProcessing/TaskTypes/AudioToAudioChat.php b/lib/public/TaskProcessing/TaskTypes/AudioToAudioChat.php
index c862437e86b27..0613a2d07d244 100644
--- a/lib/public/TaskProcessing/TaskTypes/AudioToAudioChat.php
+++ b/lib/public/TaskProcessing/TaskTypes/AudioToAudioChat.php
@@ -12,14 +12,14 @@
 use OCP\IL10N;
 use OCP\L10N\IFactory;
 use OCP\TaskProcessing\EShapeType;
-use OCP\TaskProcessing\ITaskType;
+use OCP\TaskProcessing\IInternalTaskType;
 use OCP\TaskProcessing\ShapeDescriptor;
 
 /**
  * This is the task processing task type for audio chat
  * @since 32.0.0
  */
-class AudioToAudioChat implements ITaskType {
+class AudioToAudioChat implements IInternalTaskType {
 	/**
 	 * @since 32.0.0
 	 */
diff --git a/lib/public/TaskProcessing/TaskTypes/ContextAgentAudioInteraction.php b/lib/public/TaskProcessing/TaskTypes/ContextAgentAudioInteraction.php
index 6cd358040b716..b668ea248067d 100644
--- a/lib/public/TaskProcessing/TaskTypes/ContextAgentAudioInteraction.php
+++ b/lib/public/TaskProcessing/TaskTypes/ContextAgentAudioInteraction.php
@@ -12,14 +12,14 @@
 use OCP\IL10N;
 use OCP\L10N\IFactory;
 use OCP\TaskProcessing\EShapeType;
-use OCP\TaskProcessing\ITaskType;
+use OCP\TaskProcessing\IInternalTaskType;
 use OCP\TaskProcessing\ShapeDescriptor;
 
 /**
  * This is the task processing task type for Context Agent interaction
  * @since 32.0.0
  */
-class ContextAgentAudioInteraction implements ITaskType {
+class ContextAgentAudioInteraction implements IInternalTaskType {
 	public const ID = 'core:contextagent:audio-interaction';
 
 	private IL10N $l;
diff --git a/lib/public/TaskProcessing/TaskTypes/ContextAgentInteraction.php b/lib/public/TaskProcessing/TaskTypes/ContextAgentInteraction.php
index cd08d6f4e3de3..6cb126e189453 100644
--- a/lib/public/TaskProcessing/TaskTypes/ContextAgentInteraction.php
+++ b/lib/public/TaskProcessing/TaskTypes/ContextAgentInteraction.php
@@ -12,14 +12,14 @@
 use OCP\IL10N;
 use OCP\L10N\IFactory;
 use OCP\TaskProcessing\EShapeType;
-use OCP\TaskProcessing\ITaskType;
+use OCP\TaskProcessing\IInternalTaskType;
 use OCP\TaskProcessing\ShapeDescriptor;
 
 /**
  * This is the task processing task type for Context Agent interaction
  * @since 31.0.0
  */
-class ContextAgentInteraction implements ITaskType {
+class ContextAgentInteraction implements IInternalTaskType {
 	public const ID = 'core:contextagent:interaction';
 
 	private IL10N $l;
diff --git a/lib/public/TaskProcessing/TaskTypes/TextToTextChatWithTools.php b/lib/public/TaskProcessing/TaskTypes/TextToTextChatWithTools.php
index ebc660a3af952..3e470bf23aefe 100644
--- a/lib/public/TaskProcessing/TaskTypes/TextToTextChatWithTools.php
+++ b/lib/public/TaskProcessing/TaskTypes/TextToTextChatWithTools.php
@@ -12,14 +12,14 @@
 use OCP\IL10N;
 use OCP\L10N\IFactory;
 use OCP\TaskProcessing\EShapeType;
-use OCP\TaskProcessing\ITaskType;
+use OCP\TaskProcessing\IInternalTaskType;
 use OCP\TaskProcessing\ShapeDescriptor;
 
 /**
  * This is the task processing task type for invoking Chat-enabled LLMs with tool call support
  * @since 31.0.0
  */
-class TextToTextChatWithTools implements ITaskType {
+class TextToTextChatWithTools implements IInternalTaskType {
 	public const ID = 'core:text2text:chatwithtools';
 
 	private IL10N $l;