diff --git a/src/test/java/it/cnr/isti/workflow/manager/controllers/ContainersControllerTest.java b/src/test/java/it/cnr/isti/workflow/manager/controllers/ContainersControllerTest.java
index fa6849d..7c39a52 100644
--- a/src/test/java/it/cnr/isti/workflow/manager/controllers/ContainersControllerTest.java
+++ b/src/test/java/it/cnr/isti/workflow/manager/controllers/ContainersControllerTest.java
@@ -146,6 +146,38 @@ public class ContainersControllerTest {
                 .anyMatch(node -> "subFlow".equals(node.asText())));
     }
 
+    @Test
+    public void loopContainerSchemaContainsConditionalLlmPromptMetadata() {
+        ContainersController.ContainerConfigurationDescriptor descriptor = containersController.getTypes().stream()
+                .filter(type -> LoopContainerType.TYPE.equals(type.type()))
+                .findFirst()
+                .orElseThrow();
+
+        assertNotNull(descriptor.schema());
+        assertTrue(descriptor.schema() instanceof JsonNode);
+
+        JsonNode schema = (JsonNode) descriptor.schema();
+        JsonNode useLlm = schema.path("properties").path("useLlm");
+        JsonNode llmDescriptor = schema.path("properties").path("llmDescriptor");
+        JsonNode prompt = schema.path("properties").path("prompt");
+
+        assertTrue(useLlm.path("x-ui-structural").asBoolean());
+
+        assertEquals("useLlm", llmDescriptor.path("x-ui-enabled-when").path("field").asText());
+        assertEquals("true", llmDescriptor.path("x-ui-enabled-when").path("equals").asText());
+        assertEquals("useLlm", llmDescriptor.path("x-ui-required-when").path("field").asText());
+        assertEquals("true", llmDescriptor.path("x-ui-required-when").path("equals").asText());
+        assertEquals("llm", llmDescriptor.path("x-ui-group").asText());
+
+        assertTrue(prompt.path("x-ui-structural").asBoolean());
+        assertEquals("textarea", prompt.path("x-ui-widget").asText());
+        assertEquals("useLlm", prompt.path("x-ui-enabled-when").path("field").asText());
+        assertEquals("true", prompt.path("x-ui-enabled-when").path("equals").asText());
+        assertEquals("useLlm", prompt.path("x-ui-required-when").path("field").asText());
+        assertEquals("true", prompt.path("x-ui-required-when").path("equals").asText());
+        assertEquals("llm", prompt.path("x-ui-group").asText());
+    }
+
     @Test
     public void createGenericContainerExposesOpenHandles() {
         Block<LLMBlockType> internalBlock = blocksController.create(LLMBlockConfiguration.builder()