Strengthen seed determinism smoke

tools/prompt_smoke.py

@@ -383,6 +383,7 @@ def _prompt_row(
     category: str,
     subcategory: str,
     seed: int,
+    seed_config: str | dict[str, Any] | None = None,
     character_cast: str = "",
     women_count: int = 1,
     men_count: int = 1,
@@ -410,6 +411,7 @@ def _prompt_row(
         prepend_trigger_to_prompt=True,
         extra_positive="",
         extra_negative="",
+        seed_config=seed_config,
         character_cast=character_cast,
         women_count=women_count,
         men_count=men_count,
@@ -5244,6 +5246,55 @@ def smoke_seed_config_policy() -> None:
     _expect(rng_a.random() == rng_b.random(), "prompt_builder axis RNG should delegate to seed_config")
     _expect(pb._row_seed(123, 7, 41) == seed_config.row_seed(123, 7, 41), "row seed wrapper drifted from seed_config")
 
+    deterministic_seed = 3901
+    deterministic_config = pb.build_seed_lock_config_json(base_seed=deterministic_seed)
+    deterministic_kwargs = {
+        "name": "seed_config_policy_deterministic",
+        "category": "Hardcore sexual poses",
+        "subcategory": "Penetrative sex",
+        "seed": deterministic_seed,
+        "seed_config": deterministic_config,
+        "character_cast": _character_cast(),
+        "hardcore_position_config": _action_filter("penetration_only"),
+        "location_config": _coworking_location_config(),
+    }
+    deterministic_a = _prompt_row(**deterministic_kwargs)
+    deterministic_b = _prompt_row(**deterministic_kwargs)
+    _expect(deterministic_a == deterministic_b, "locked seed config should reproduce identical prompt row output")
+
+    pose_changed = False
+    for reroll_seed in range(deterministic_seed + 1, deterministic_seed + 10):
+        pose_reroll = _prompt_row(
+            name="seed_config_policy_pose_reroll",
+            category="Hardcore sexual poses",
+            subcategory="Penetrative sex",
+            seed=deterministic_seed,
+            seed_config=pb.build_seed_lock_config_json(
+                base_seed=deterministic_seed,
+                reroll_axis="pose",
+                reroll_seed=reroll_seed,
+            ),
+            character_cast=_character_cast(),
+            hardcore_position_config=_action_filter("penetration_only"),
+            location_config=_coworking_location_config(),
+        )
+        _expect(
+            pose_reroll.get("cast_descriptor_text") == deterministic_a.get("cast_descriptor_text"),
+            "pose reroll should keep locked cast descriptors stable",
+        )
+        _expect(
+            pose_reroll.get("scene_text") == deterministic_a.get("scene_text"),
+            "pose reroll should keep locked scene stable",
+        )
+        if (
+            pose_reroll.get("position_key") != deterministic_a.get("position_key")
+            or pose_reroll.get("source_role_graph") != deterministic_a.get("source_role_graph")
+            or pose_reroll.get("item") != deterministic_a.get("item")
+        ):
+            pose_changed = True
+            break
+    _expect(pose_changed, "pose reroll should change pose/action metadata while cast and scene stay locked")
+
 
 def smoke_node_camera_registration() -> None:
     required_nodes = [