Share formatter cast descriptor policy

docs/prompt-architecture-improvement-plan.md

@@ -234,8 +234,9 @@ Keep here:
 
 Already isolated:
 
-- `krea_cast.py` owns cast descriptor parsing, cast prose, label joining, and
-  natural label replacement for formatter routes.
+- `krea_cast.py` owns cast descriptor parsing, cast labels, cast prose, label
+  joining, natural cast descriptor text, and label replacement for formatter
+  routes, including the caption naturalizer's cast metadata path.
 - `krea_clothing.py` owns clothing-state cleanup and action-aware body-access
   wording for formatter routes.
 - `krea_action_context.py` owns shared action-family predicates, axis context
@@ -302,10 +303,10 @@ Keep here:
 - style-tail policy.
 - metadata-family action labels from `action_family` and `position_family`.
 - shared formatter input parsing from `formatter_input.py`.
+- shared cast descriptor parsing and label replacement from `krea_cast.py`.
 
 Improve later:
 
-- share more metadata readers with Krea without sharing Krea prose;
 - add a `caption_profile` option for concise/dense LoRA caption styles.
 
 ### Category JSON Path

docs/prompt-pool-routing-map.md

@@ -92,6 +92,7 @@ Core helper ownership:
 | `hardcore_role_climax.py` | Climax and ejaculation aftermath role graph wording for face/body/ass, lap, open-thigh, side-lying, and group front/back placement. |
 | `hardcore_action_metadata.py` | Source action-family and position-family metadata used by Krea2, SDXL, and caption routes. |
 | `scene_camera_adapters.py` | Location-aware camera/scene prose such as coworking lounge camera layout. |
+| `krea_cast.py` | Shared formatter cast descriptor parsing, cast labels, cast prose, natural cast descriptor text, and label replacement used by Krea2 and caption routes. |
 | `prompt_hygiene.py` | Generic prompt, caption, and negative-prompt cleanup. |
 | `row_normalization.py` | Final prompt-row and pair metadata normalization: trigger prepending, extra-positive append, negative merge/dedupe, caption-part joining, and embedded soft/hard row sanitation. |
 | `formatter_input.py` | Shared formatter input parsing: text cleanup, metadata/source JSON detection, trigger-prefix stripping, `Avoid:` splitting, prompt-field extraction, and metadata row-value fallback. |