Add H3 prompt subject count guard

tests/test_dumas_image_nodes.py

@@ -448,6 +448,7 @@ class DumasImageNodeTests(unittest.TestCase):
         result = node.curate_prompt(
             action_prompt="Dave runs from the Coffee Shop into the rain.",
             anatomy_guard="auto",
+            subject_count_guard="auto",
             anchor="grounded handheld thriller",
             soundscape="steady rain",
             ref_1=dave,
@@ -460,6 +461,8 @@ class DumasImageNodeTests(unittest.TestCase):
         self.assertIn("<Picture 2> Coffee Shop", prompt)
         self.assertIn("Action: Dave runs from the Coffee Shop into the rain.", prompt)
         self.assertIn("Anatomy guard:", prompt)
+        self.assertIn("Subject count guard:", prompt)
+        self.assertIn("exactly one named character: <Picture 1> Dave", prompt)
         self.assertIs(result[1], dave_image)
         self.assertIs(result[2], cafe_image)
         self.assertIsNone(result[3])
@@ -478,6 +481,7 @@ class DumasImageNodeTests(unittest.TestCase):
         result = node.curate_prompt(
             action_prompt="<Picture 1> Maya crosses to <ref3> as the wind rises.",
             anatomy_guard="off",
+            subject_count_guard="off",
             ref_1=first,
             ref_2=second,
             ref_3=third,
@@ -491,6 +495,24 @@ class DumasImageNodeTests(unittest.TestCase):
         self.assertIsNone(result[3])
         self.assertEqual(result[10], 2)
 
+    def test_h3_prompt_curator_can_force_subject_count_without_character_refs(self):
+        node = self.image_nodes.DumasH3PromptCuratorNode()
+
+        result = node.curate_prompt(
+            action_prompt="A locked-off shot of the empty corridor.",
+            anatomy_guard="off",
+            subject_count_guard="on",
+        )
+
+        self.assertIn("Subject count guard:", result[0])
+        self.assertIn("Only include the people explicitly described", result[0])
+        self.assertEqual(result[10], 0)
+
+    def test_h3_prompt_curator_defaults_anatomy_guard_to_on(self):
+        required = self.image_nodes.DumasH3PromptCuratorNode.INPUT_TYPES()["required"]
+
+        self.assertEqual(required["anatomy_guard"][1]["default"], "on")
+
     def test_helper_node_mappings_use_general_purpose_helpers(self):
         mappings = self.image_nodes.NODE_CLASS_MAPPINGS
         display = self.image_nodes.NODE_DISPLAY_NAME_MAPPINGS