diff --git a/.voidbot/state/aetheria.cc b/.voidbot/state/aetheria.cc
index e38382177..43fb51f2a 100644
Binary files a/.voidbot/state/aetheria.cc and b/.voidbot/state/aetheria.cc differ
diff --git a/Assets/Scripts/Gameplay/ActionGameManager.cs b/Assets/Scripts/Gameplay/ActionGameManager.cs
index 89aafd6b2..20016ed1b 100644
--- a/Assets/Scripts/Gameplay/ActionGameManager.cs
+++ b/Assets/Scripts/Gameplay/ActionGameManager.cs
@@ -35,7 +35,7 @@ public class ActionGameManager : MonoBehaviour
         get => _gameDataDirectory ??= new DirectoryInfo(Application.dataPath).Parent.CreateSubdirectory("GameData");
     }
 
-    public static string AetheriaStateFilePath => LegacyCatalogBoundary.GetStateFilePath(GameDataDirectory);
+    public static string AetheriaStateFilePath => AetheriaStateBoundary.GetStateFilePath(GameDataDirectory);
     private static string LegacyAetherDatabasePath => LegacyCatalogBoundary.GetLegacyCatalogPath(GameDataDirectory);
     private static ILegacyCatalogReader LegacyCatalog => LegacyCatalogBoundary.GetCatalog(GameDataDirectory);
 
diff --git a/Assets/Scripts/Gameplay/AetheriaStateBoundary.cs b/Assets/Scripts/Gameplay/AetheriaStateBoundary.cs
new file mode 100644
index 000000000..1dbb894f1
--- /dev/null
+++ b/Assets/Scripts/Gameplay/AetheriaStateBoundary.cs
@@ -0,0 +1,11 @@
+using System.IO;
+
+public static class AetheriaStateBoundary
+{
+    public const string RuntimeStateFileName = "aetheria-world.cc";
+
+    public static string GetStateFilePath(DirectoryInfo gameDataDirectory)
+    {
+        return Path.Combine(gameDataDirectory.FullName, RuntimeStateFileName);
+    }
+}
diff --git a/Assets/Scripts/Gameplay/LegacyCatalogBoundary.cs b/Assets/Scripts/Gameplay/LegacyCatalogBoundary.cs
index fe809f94d..00f320083 100644
--- a/Assets/Scripts/Gameplay/LegacyCatalogBoundary.cs
+++ b/Assets/Scripts/Gameplay/LegacyCatalogBoundary.cs
@@ -4,11 +4,6 @@ public static class LegacyCatalogBoundary
 {
     private static LegacyCatalogCache _catalogCache;
 
-    public static string GetStateFilePath(DirectoryInfo gameDataDirectory)
-    {
-        return Path.Combine(gameDataDirectory.FullName, "aetheria-world.cc");
-    }
-
     public static string GetLegacyCatalogPath(DirectoryInfo gameDataDirectory)
     {
         return Path.Combine(gameDataDirectory.FullName, "AetherDB.msgpack");
diff --git a/docs/aetheria-perfect-machine-map.md b/docs/aetheria-perfect-machine-map.md
index 22ebf38f3..c164cd883 100644
--- a/docs/aetheria-perfect-machine-map.md
+++ b/docs/aetheria-perfect-machine-map.md
@@ -20,10 +20,13 @@ legacy catalog cache, and legacy UI paths should be migration-only or deleted.
 - Unity client/runtime lives under `Assets/`. Gameplay still reads the legacy
   item/name catalog through a private `ActionGameManager` boot helper, which is
   now the only runtime entrypoint that calls `LegacyCatalogBoundary.GetCatalog`.
-  `ActionGameManager` no longer owns a global legacy cache. Local run saves,
-  loadouts, player settings files, zone files, and generated keyboard layout
-  caches no longer write bespoke durable files. The legacy `PlayerSettings`
-  runtime object is no longer decorated as a MessagePack persistence shape.
+  `ActionGameManager` no longer owns a global legacy cache.
+  `AetheriaStateBoundary` owns the Unity runtime path to
+  `GameData/aetheria-world.cc`; `LegacyCatalogBoundary` no longer names or owns
+  typed state paths. Local run saves, loadouts, player settings files, zone
+  files, and generated keyboard layout caches no longer write bespoke durable
+  files. The legacy `PlayerSettings` runtime object is no longer decorated as a
+  MessagePack persistence shape.
 - Shared domain state is still partly built around `DatabaseEntry`, GUID
   identity, MessagePack attributes, and static cache references. Newtonsoft,
   JsonKnownTypes, RethinkDB, LiteNetLib client transport, and the broken
@@ -126,6 +129,8 @@ legacy catalog cache, and legacy UI paths should be migration-only or deleted.
 - `GameData/aetheria-world.cc` is now materialized from the importer as the
   project-local typed state file for the checked-in catalog. The importer stores
   relative provenance in the state document, not machine-local absolute paths.
+  Unity resolves this path through `AetheriaStateBoundary`, not through the
+  legacy catalog boundary.
   Import rebuilds clear the generated `.cc`, `.cc.records`, and `.cultmesh`
   outputs for the selected state path after capturing legacy inputs, so schema
   evolution can rematerialize typed state instead of being blocked by stale
@@ -189,6 +194,7 @@ legacy catalog cache, and legacy UI paths should be migration-only or deleted.
 ## Current Authority Map
 
 - Owner: `Aetheria.State` owns the new typed state spine for durable state.
+  `AetheriaStateBoundary` owns Unity's runtime typed state file path.
   `LegacyCatalogBoundary` is the only named owner for opening the old catalog
   and binding legacy `DatabaseLink<T>` resolution until catalog migration lands.
   `ActionGameManager` has a private boot helper that calls it only to construct