Route pair metadata structurally

krea_format_route.py

@@ -5,9 +5,11 @@ from typing import Any, Callable
 
 try:
     from . import formatter_detail as detail_policy
+    from . import formatter_input as input_policy
     from . import formatter_target as target_policy
 except ImportError:  # pragma: no cover - plain-script smoke tests
     import formatter_detail as detail_policy
+    import formatter_input as input_policy
     import formatter_target as target_policy
 
 
@@ -68,7 +70,7 @@ def format_krea2_prompt_result(request: KreaFormatRequest, deps: KreaFormatDepen
     target = target_policy.normalize_target(request.target)
     row, method = deps.row_from_inputs(request.source_text, request.metadata_json, request.input_hint)
 
-    if row and row.get("mode") == "Insta/OF":
+    if row and input_policy.is_pair_metadata(row):
         pair_target = target_policy.pair_policy(target)
         soft_prompt, soft_negative, hard_prompt, hard_negative = deps.insta_pair_to_krea(
             row,