Validate item template formatter hints

prompt_builder.py

@@ -318,6 +318,10 @@ def _template_action_family(metadata: dict[str, Any]) -> str:
     return item_template_policy.template_action_family(metadata)
 
 
+def _template_formatter_hints(metadata: dict[str, Any]) -> dict[str, list[str]]:
+    return item_template_policy.formatter_hints(metadata)
+
+
 def _merge_position_keys(primary: list[str], fallback: list[str]) -> list[str]:
     return item_template_policy.merge_position_keys(primary, fallback)
 
@@ -3757,6 +3761,7 @@ def _build_custom_row(
     if is_pose_category:
         item_text = _sanitize_hardcore_environment_anchors(item_text)
         item_axis_values = _sanitize_hardcore_axis_values(item_axis_values)
+    item_formatter_hints = _template_formatter_hints(item_template_metadata)
     subject_type = str(_merged_field(category, subcategory, item, "subject_type", "single_any"))
     context = _subject_context(person_rng, subject_type, ethnicity, figure, no_plus_women, no_black, women_count, men_count)
     character_slots = _parse_character_cast(character_cast)
@@ -4029,6 +4034,7 @@ def _build_custom_row(
             "custom_item": item_name,
             "item_axis_values": item_axis_values,
             "item_template_metadata": item_template_metadata,
+            "formatter_hints": item_formatter_hints,
             "scene_text": scene,
             "location_config": parsed_location_config if _location_config_active(parsed_location_config) else {},
             "pose": pose,