Extract caption format dispatch route

tools/prompt_smoke.py

@@ -25,6 +25,7 @@ if str(ROOT) not in sys.path:
     sys.path.insert(0, str(ROOT))
 
 import caption_naturalizer  # noqa: E402
+import caption_format_route  # noqa: E402
 import caption_metadata_routes  # noqa: E402
 import caption_policy  # noqa: E402
 import caption_text_policy  # noqa: E402
@@ -2532,6 +2533,77 @@ def smoke_caption_policy() -> None:
     _expect(browsing_method == "text(fallback)", "Caption browsing profile changed fallback method")
 
 
+def smoke_caption_format_route_policy() -> None:
+    row = _prompt_row(
+        name="caption_format_route_single",
+        category="woman",
+        subcategory="random",
+        seed=3801,
+        men_count=0,
+    )
+    metadata_request = caption_format_route.CaptionFormatRequest(
+        source_text="",
+        metadata_json=_json(row),
+        input_hint="metadata_json",
+        trigger=Trigger,
+        include_trigger=False,
+        detail_level="concise",
+        style_policy="keep_style_terms",
+        caption_profile="training_dense",
+    )
+    typed_metadata = caption_format_route.naturalize_caption_result(
+        metadata_request,
+        caption_naturalizer._caption_format_dependencies(),
+    )
+    public_metadata = caption_naturalizer.naturalize_caption(
+        "",
+        metadata_json=metadata_request.metadata_json,
+        input_hint=metadata_request.input_hint,
+        trigger=metadata_request.trigger,
+        include_trigger=metadata_request.include_trigger,
+        detail_level=metadata_request.detail_level,
+        style_policy=metadata_request.style_policy,
+        caption_profile=metadata_request.caption_profile,
+    )
+    _expect(typed_metadata.as_tuple() == public_metadata, "Typed caption format route should match public metadata output")
+    _expect(typed_metadata.branch == "metadata", "Typed caption format route changed metadata branch")
+    _expect(typed_metadata.input_hint == "metadata_json", "Typed caption route lost input hint")
+    _expect(typed_metadata.detail_level == "dense", "Typed caption route lost training_dense detail override")
+    _expect(typed_metadata.style_policy == "drop_style_tail", "Typed caption route lost training_dense style override")
+    _expect(typed_metadata.include_trigger is True, "Typed caption route lost training_dense trigger override")
+    _expect(typed_metadata.caption.startswith(Trigger), "Typed caption metadata route should prepend training trigger")
+
+    fallback_request = caption_format_route.CaptionFormatRequest(
+        source_text="woman, red dress, studio, coloured pencil comic illustration",
+        input_hint="bad_hint",
+        trigger=Trigger,
+        include_trigger=True,
+        detail_level="dense",
+        style_policy="drop_style_tail",
+        caption_profile="browsing",
+    )
+    typed_fallback = caption_format_route.naturalize_caption_result(
+        fallback_request,
+        caption_naturalizer._caption_format_dependencies(),
+    )
+    public_fallback = caption_naturalizer.naturalize_caption(
+        fallback_request.source_text,
+        input_hint=fallback_request.input_hint,
+        trigger=fallback_request.trigger,
+        include_trigger=fallback_request.include_trigger,
+        detail_level=fallback_request.detail_level,
+        style_policy=fallback_request.style_policy,
+        caption_profile=fallback_request.caption_profile,
+    )
+    _expect(typed_fallback.as_tuple() == public_fallback, "Typed caption format route should match public fallback output")
+    _expect(typed_fallback.branch == "text", "Typed caption format route changed fallback branch")
+    _expect(typed_fallback.input_hint == "auto", "Typed caption route should normalize invalid input hint")
+    _expect(typed_fallback.include_trigger is False, "Typed caption browsing profile should disable trigger")
+    _expect(typed_fallback.keep_style is True, "Typed caption browsing profile should keep style terms")
+    _expect(not typed_fallback.caption.startswith(Trigger), "Typed caption fallback route should not prepend browsing trigger")
+    _expect(typed_fallback.method == "text(fallback)", "Typed caption fallback method changed")
+
+
 def smoke_caption_text_policy() -> None:
     row = {
         "primary_subject": "woman",
@@ -5746,6 +5818,7 @@ SMOKE_CASES: list[tuple[str, Callable[[], None]]] = [
     ("krea_format_route_policy", smoke_krea_format_route_policy),
     ("formatter_cast_policy", smoke_formatter_cast_policy),
     ("caption_policy", smoke_caption_policy),
+    ("caption_format_route_policy", smoke_caption_format_route_policy),
     ("caption_text_policy", smoke_caption_text_policy),
     ("caption_metadata_routes", smoke_caption_metadata_routes),
     ("sdxl_presets_policy", smoke_sdxl_presets_policy),