Issue #3447795 by Marcus_Johansson: The directory needs to be prepared in the filehlper

src/Plugin/AiEvaluationTool/AiInterpolatorTool.php

+<?php
+
+namespace Drupal\ai_interpolator\Plugin\AiEvaluationTool;
+
+use Drupal\ai_evaluation\PluginInterface\AiToolPluginInterface;
+use Drupal\ai_evaluation\Attribute\AiTool;
+use Drupal\Core\StringTranslation\TranslatableMarkup;
+
+
+#[AiTool(
+  id: 'ai_interpolator_tool',
+  label: new TranslatableMarkup('AI Interpolator'),
+  description: new TranslatableMarkup('Use the AI Interpolator to compare workflows.'),
+)]
+class AiInterpolatorTool implements AiToolPluginInterface {
+
+}

src/Rulehelpers/FileHelper.php

@@ -86,7 +86,9 @@ class FileHelper {
    */
   public function createFilePathFromFieldConfig($fileName, FieldDefinitionInterface $fieldDefinition, ContentEntityInterface $entity) {
     $config = $fieldDefinition->getConfig($entity->bundle())->getSettings();
-    return $this->token->replace($config['uri_scheme'] . '://' . rtrim($config['file_directory'], '/')) . '/' . $fileName;
+    $path = $this->token->replace($config['uri_scheme'] . '://' . rtrim($config['file_directory'], '/'));
+    $this->fileSystem->prepareDirectory($path);
+    return $path . '/' . $fileName;
   }
 
   /**