diff --git a/docs/plan/editor-core-refactor-plan.md b/docs/plan/editor-core-refactor-plan.md
index 339a6390..4640a1da 100644
--- a/docs/plan/editor-core-refactor-plan.md
+++ b/docs/plan/editor-core-refactor-plan.md
@@ -109,7 +109,7 @@ Completed boundary cuts:
 - The private `editor/app` compatibility include root is gone from
   `XCEditorCore` and `XCEditor`. App implementation files now include through
   explicit module roots such as `app/Composition`, `app/Features`,
-  `app/Windowing`, `app/Scene`, `app/Services`, `app/Support`,
+  `app/Windowing`, `app/Services`, `app/Support`,
   `app/Host/Interfaces`, `app/Host/Win32`, and `app/Host/D3D12`; only
   executable-host code consumes `app/Bootstrap`.
 - Concrete `app/Rendering/**` files now build through the
@@ -346,7 +346,7 @@ Initial contents:
 - `app/Composition/**`
 - `app/Features/**`
 - `app/Project/**` or `app/Services/Project/**`
-- `app/Scene/**` or `app/Services/Scene/**`
+- `app/Services/Scene/**`
 - `app/Core/UtilityWindows/**`
 - `app/Core/Windowing/**`
 - `app/Windowing/**` core files that do not require Win32 or D3D12
@@ -469,13 +469,20 @@ Completed:
 ```text
 Rendering/Viewport/SceneViewportRenderRequest.h
     -> Core/Scene/SceneViewportRenderRequest.h
+
+Scene/EditorSceneRuntime.h
+Scene/EditorSceneBridge.h
+Scene/SceneToolState.h
+Scene/SceneViewportCameraController.h
+    -> Services/Scene/
 ```
 
 Current shape:
 
 ```text
 Core/Scene/SceneViewportRenderRequest.h
-Scene/EditorSceneRuntime.h
+Services/Scene/EditorSceneRuntime.h
+Services/Scene/EditorSceneBridge.h
 Rendering/Viewport/SceneViewportRenderService.h
 ```
 
@@ -483,6 +490,9 @@ Rendering/Viewport/SceneViewportRenderService.h
 not a rendering implementation detail. Keep future scene-to-viewport request
 values under `Core/Scene` so scene services can build requests without taking
 an `app/Rendering/**` include dependency.
+Scene runtime, scene bridge, scene tool state, and scene viewport camera
+control are service-layer implementation and live under `Services/Scene`;
+the app root no longer owns a concrete `Scene` service directory.
 - Scene viewport shader paths are runtime configuration now. Build them from
   the runtime repo root in the viewport runtime service, inject them into
   `SceneViewportRenderService`, and keep grid/selection render passes from
diff --git a/editor/AGENTS.md b/editor/AGENTS.md
index cc58927a..fcf0aaa7 100644
--- a/editor/AGENTS.md
+++ b/editor/AGENTS.md
@@ -35,8 +35,8 @@ change.
   contracts under `app/Core` and `app/Host/Interfaces`.
 - `XCEditorCore` also does not consume the whole `editor/app` root privately.
   Its implementation include paths enumerate concrete app module roots such as
-  `app/Composition`, `app/Features`, `app/Windowing`, `app/Scene`,
-  `app/Services`, and `app/Support`.
+  `app/Composition`, `app/Features`, `app/Windowing`, `app/Services`,
+  and `app/Support`.
 - Concrete `app/Rendering/**` implementation builds as the
   `XCEditorCoreRendering` object library. `XCEditorCore` consumes those object
   files, but it does not publish or privately widen its include surface back to
@@ -105,12 +105,15 @@ change.
   panel factory. Shared utility-window contracts and descriptors live under
   `app/Core/UtilityWindows` so windowing can resolve utility window shape
   without constructing concrete feature panels.
-- `app/Services/Project/` and `app/Scene/` hold application services that
-  panels should use instead of owning global state themselves. Shared app
+- `app/Services/Project/` and `app/Services/Scene/` hold application services
+  that panels should use instead of owning global state themselves. Shared app
   state contracts live under `app/Core/State`.
   `ProjectBrowserModel` and `EditorProjectRuntime` live under
   `app/Services/Project`; project panels adapt those service models into
   widget-specific tree/list presentation data.
+  `EditorSceneRuntime`, `EditorSceneBridge`, scene tool state, and the scene
+  viewport camera controller live under `app/Services/Scene`; scene feature
+  panels consume those services instead of owning scene state.
 
 ## Layering
 
@@ -457,6 +460,8 @@ inside pure shell/widget code.
 - `editor/app/Composition/EditorContext.cpp`
 - `editor/app/Services/Project/EditorProjectRuntime.cpp`
 - `editor/app/Services/Project/ProjectBrowserModel.cpp`
+- `editor/app/Services/Scene/EditorSceneRuntime.cpp`
+- `editor/app/Services/Scene/EditorSceneBridge.cpp`
 - `editor/app/Composition/EditorShellRuntime.cpp`
 - `editor/app/Composition/EditorShellAssetBuilder.cpp`
 - `editor/app/Windowing/EditorWindowManager.cpp`
@@ -552,6 +557,12 @@ ownership rule.
   and `EditorProjectRuntime` now live under `app/Services/Project`, and the
   Project panel owns the widget-tree projection instead of making the service
   model depend on `UIEditorTreeViewItem`.
+- Scene service ownership moved out of the app root:
+  `EditorSceneRuntime`, `EditorSceneBridge`, scene tool state, and the scene
+  viewport camera controller now live under `app/Services/Scene`. The app root
+  no longer has a concrete `app/Scene` service directory; shared scene
+  contracts remain under `app/Core/Scene`, and scene viewport UI stays under
+  `app/Features/Scene`.
 - The old `Win32EditorWindowRenderRuntimeSurface` adapter was removed. Win32
   now captures native render startup data into the neutral
   `Rendering::Host::EditorWindowRenderRuntimeSurface` value contract, so D3D12
diff --git a/editor/CMakeLists.txt b/editor/CMakeLists.txt
index 8c933dba..eb3c4cd1 100644
--- a/editor/CMakeLists.txt
+++ b/editor/CMakeLists.txt
@@ -279,10 +279,10 @@ if(XCENGINE_BUILD_XCUI_EDITOR_CORE)
     )
 
     set(XCUI_EDITOR_APP_SUPPORT_SOURCES
-        app/Scene/EditorSceneRuntime.cpp
+        app/Services/Scene/EditorSceneRuntime.cpp
         app/Services/Project/EditorProjectRuntime.cpp
         app/Services/Project/ProjectBrowserModel.cpp
-        app/Scene/EditorSceneBridge.cpp
+        app/Services/Scene/EditorSceneBridge.cpp
     )
 
     set(XCUI_EDITOR_APP_CORE_SOURCES
@@ -336,7 +336,6 @@ if(XCENGINE_BUILD_XCUI_EDITOR_CORE)
         PRIVATE
         ${CMAKE_CURRENT_SOURCE_DIR}/app/Composition
         ${CMAKE_CURRENT_SOURCE_DIR}/app/Features
-        ${CMAKE_CURRENT_SOURCE_DIR}/app/Scene
         ${CMAKE_CURRENT_SOURCE_DIR}/app/Services
         ${CMAKE_CURRENT_SOURCE_DIR}/app/Support
         ${CMAKE_CURRENT_SOURCE_DIR}/app/Windowing
@@ -392,7 +391,6 @@ if(XCENGINE_BUILD_XCUI_EDITOR_APP)
         ${CMAKE_CURRENT_SOURCE_DIR}/app/Host/Win32
         ${CMAKE_CURRENT_SOURCE_DIR}/app/Host/D3D12
         ${CMAKE_CURRENT_SOURCE_DIR}/app/Rendering
-        ${CMAKE_CURRENT_SOURCE_DIR}/app/Scene
         ${CMAKE_CURRENT_SOURCE_DIR}/app/Services
         ${CMAKE_CURRENT_SOURCE_DIR}/app/Support
         ${CMAKE_CURRENT_SOURCE_DIR}/app/Windowing
diff --git a/editor/app/Composition/EditorContext.cpp b/editor/app/Composition/EditorContext.cpp
index fba41cba..17badee7 100644
--- a/editor/app/Composition/EditorContext.cpp
+++ b/editor/app/Composition/EditorContext.cpp
@@ -1,6 +1,6 @@
 #include "EditorContext.h"
 #include "EditorShellAssetBuilder.h"
-#include "EditorSceneRuntime.h"
+#include "Scene/EditorSceneRuntime.h"
 #include "Panels/EditorPanelIds.h"
 #include "WorkspaceEventSync.h"
 #include <XCEditor/Foundation/UIEditorRuntimeTrace.h>
diff --git a/editor/app/Composition/EditorContext.h b/editor/app/Composition/EditorContext.h
index e2874421..822ef82b 100644
--- a/editor/app/Composition/EditorContext.h
+++ b/editor/app/Composition/EditorContext.h
@@ -2,7 +2,7 @@
 
 #include "Panels/EditorPanelServices.h"
 #include "Windowing/EditorFrameServices.h"
-#include "EditorSceneRuntime.h"
+#include "Scene/EditorSceneRuntime.h"
 #include "Project/EditorProjectRuntime.h"
 #include "UtilityWindows/EditorUtilityWindowRuntime.h"
 
diff --git a/editor/app/Features/Hierarchy/HierarchyModel.cpp b/editor/app/Features/Hierarchy/HierarchyModel.cpp
index 10157165..c7c5ff70 100644
--- a/editor/app/Features/Hierarchy/HierarchyModel.cpp
+++ b/editor/app/Features/Hierarchy/HierarchyModel.cpp
@@ -1,6 +1,6 @@
 #include "HierarchyModel.h"
 
-#include "EditorSceneBridge.h"
+#include "Scene/EditorSceneBridge.h"
 
 #include <XCEngine/Components/GameObject.h>
 #include <XCEngine/Scene/Scene.h>
diff --git a/editor/app/Features/Hierarchy/HierarchyPanel.cpp b/editor/app/Features/Hierarchy/HierarchyPanel.cpp
index 92d4843b..2bb80b36 100644
--- a/editor/app/Features/Hierarchy/HierarchyPanel.cpp
+++ b/editor/app/Features/Hierarchy/HierarchyPanel.cpp
@@ -2,7 +2,7 @@
 #include "Assets/EditorIconService.h"
 #include <XCEditor/Foundation/UIEditorPanelInputFilter.h>
 #include <XCEditor/Foundation/UIEditorTheme.h>
-#include "EditorSceneRuntime.h"
+#include "Scene/EditorSceneRuntime.h"
 #include "State/EditorCommandFocusService.h"
 #include <XCEditor/Fields/UIEditorFieldStyle.h>
 #include <XCEditor/Fields/UIEditorTextField.h>
diff --git a/editor/app/Features/Inspector/Components/IInspectorComponentEditor.h b/editor/app/Features/Inspector/Components/IInspectorComponentEditor.h
index 78ad92c9..96fddbaa 100644
--- a/editor/app/Features/Inspector/Components/IInspectorComponentEditor.h
+++ b/editor/app/Features/Inspector/Components/IInspectorComponentEditor.h
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "EditorSceneRuntime.h"
+#include "Scene/EditorSceneRuntime.h"
 
 #include <XCEditor/Fields/UIEditorPropertyGrid.h>
 
diff --git a/editor/app/Features/Inspector/InspectorPanel.cpp b/editor/app/Features/Inspector/InspectorPanel.cpp
index 0bb69115..f1dea886 100644
--- a/editor/app/Features/Inspector/InspectorPanel.cpp
+++ b/editor/app/Features/Inspector/InspectorPanel.cpp
@@ -10,7 +10,7 @@
 
 #include "Inspector/Components/IInspectorComponentEditor.h"
 #include "Inspector/Components/InspectorComponentEditorRegistry.h"
-#include "EditorSceneRuntime.h"
+#include "Scene/EditorSceneRuntime.h"
 #include "Project/EditorProjectRuntime.h"
 #include "State/EditorCommandFocusService.h"
 
diff --git a/editor/app/Features/Inspector/InspectorPresentationModel.cpp b/editor/app/Features/Inspector/InspectorPresentationModel.cpp
index 6f10ac2c..53dd588c 100644
--- a/editor/app/Features/Inspector/InspectorPresentationModel.cpp
+++ b/editor/app/Features/Inspector/InspectorPresentationModel.cpp
@@ -3,7 +3,7 @@
 #include "Inspector/Components/IInspectorComponentEditor.h"
 #include "Inspector/Components/InspectorComponentEditorUtils.h"
 #include "Inspector/Components/InspectorComponentEditorRegistry.h"
-#include "EditorSceneRuntime.h"
+#include "Scene/EditorSceneRuntime.h"
 
 #include <XCEngine/Components/GameObject.h>
 
diff --git a/editor/app/Features/Inspector/InspectorSubject.cpp b/editor/app/Features/Inspector/InspectorSubject.cpp
index 3ff91f26..718ce132 100644
--- a/editor/app/Features/Inspector/InspectorSubject.cpp
+++ b/editor/app/Features/Inspector/InspectorSubject.cpp
@@ -1,6 +1,6 @@
 #include "Inspector/InspectorSubject.h"
 
-#include "EditorSceneRuntime.h"
+#include "Scene/EditorSceneRuntime.h"
 
 namespace XCEngine::UI::Editor::App {
 
diff --git a/editor/app/Features/Scene/SceneEditCommandRoute.cpp b/editor/app/Features/Scene/SceneEditCommandRoute.cpp
index f40434de..8b8826c1 100644
--- a/editor/app/Features/Scene/SceneEditCommandRoute.cpp
+++ b/editor/app/Features/Scene/SceneEditCommandRoute.cpp
@@ -1,6 +1,6 @@
 #include "Scene/SceneEditCommandRoute.h"
 
-#include "EditorSceneRuntime.h"
+#include "Scene/EditorSceneRuntime.h"
 
 #include <utility>
 
diff --git a/editor/app/Features/Scene/SceneViewportController.cpp b/editor/app/Features/Scene/SceneViewportController.cpp
index 8012c1fc..09d2ee53 100644
--- a/editor/app/Features/Scene/SceneViewportController.cpp
+++ b/editor/app/Features/Scene/SceneViewportController.cpp
@@ -1,7 +1,7 @@
 #include "Scene/SceneViewportController.h"
 
 #include "Viewport/EditorViewportPicking.h"
-#include "EditorSceneRuntime.h"
+#include "Scene/EditorSceneRuntime.h"
 #include "State/EditorCommandFocusService.h"
 
 #include "Panels/EditorPanelIds.h"
diff --git a/editor/app/Features/Scene/SceneViewportFeature.cpp b/editor/app/Features/Scene/SceneViewportFeature.cpp
index 152e4edb..1ff80cc6 100644
--- a/editor/app/Features/Scene/SceneViewportFeature.cpp
+++ b/editor/app/Features/Scene/SceneViewportFeature.cpp
@@ -1,6 +1,6 @@
 #include "Scene/SceneViewportFeature.h"
 
-#include "EditorSceneRuntime.h"
+#include "Scene/EditorSceneRuntime.h"
 #include "State/EditorCommandFocusService.h"
 
 namespace XCEngine::UI::Editor::App {
diff --git a/editor/app/Features/Scene/SceneViewportSceneOverlay.cpp b/editor/app/Features/Scene/SceneViewportSceneOverlay.cpp
index 59fb8d3d..6c2f9119 100644
--- a/editor/app/Features/Scene/SceneViewportSceneOverlay.cpp
+++ b/editor/app/Features/Scene/SceneViewportSceneOverlay.cpp
@@ -2,7 +2,7 @@
 
 #include "Scene/SceneViewportTransformGizmoSupport.h"
 #include "Assets/EditorIconService.h"
-#include "EditorSceneRuntime.h"
+#include "Scene/EditorSceneRuntime.h"
 
 #include <XCEngine/Components/CameraComponent.h>
 #include <XCEngine/Components/GameObject.h>
diff --git a/editor/app/Features/Scene/SceneViewportToolOverlay.h b/editor/app/Features/Scene/SceneViewportToolOverlay.h
index 28367422..9c1e555b 100644
--- a/editor/app/Features/Scene/SceneViewportToolOverlay.h
+++ b/editor/app/Features/Scene/SceneViewportToolOverlay.h
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "SceneToolState.h"
+#include "Scene/SceneToolState.h"
 #include "Assets/EditorIconService.h"
 
 #include <XCEngine/UI/DrawData.h>
diff --git a/editor/app/Features/Scene/SceneViewportTransformGizmo.cpp b/editor/app/Features/Scene/SceneViewportTransformGizmo.cpp
index bee2b013..bd811d44 100644
--- a/editor/app/Features/Scene/SceneViewportTransformGizmo.cpp
+++ b/editor/app/Features/Scene/SceneViewportTransformGizmo.cpp
@@ -1,8 +1,8 @@
 #include "Scene/SceneViewportTransformGizmo.h"
 
 #include "Scene/SceneViewportTransformGizmoSupport.h"
-#include "EditorSceneRuntime.h"
-#include "SceneToolState.h"
+#include "Scene/EditorSceneRuntime.h"
+#include "Scene/SceneToolState.h"
 
 #include <XCEngine/Components/CameraComponent.h>
 #include <XCEngine/Components/GameObject.h>
diff --git a/editor/app/Scene/EditorSceneBridge.cpp b/editor/app/Services/Scene/EditorSceneBridge.cpp
similarity index 99%
rename from editor/app/Scene/EditorSceneBridge.cpp
rename to editor/app/Services/Scene/EditorSceneBridge.cpp
index 7da77ff9..409c5852 100644
--- a/editor/app/Scene/EditorSceneBridge.cpp
+++ b/editor/app/Services/Scene/EditorSceneBridge.cpp
@@ -1,4 +1,4 @@
-#include "EditorSceneBridge.h"
+#include "Scene/EditorSceneBridge.h"
 
 #include <XCEditor/Foundation/UIEditorRuntimeTrace.h>
 #include <XCEngine/Components/ComponentFactoryRegistry.h>
diff --git a/editor/app/Scene/EditorSceneBridge.h b/editor/app/Services/Scene/EditorSceneBridge.h
similarity index 100%
rename from editor/app/Scene/EditorSceneBridge.h
rename to editor/app/Services/Scene/EditorSceneBridge.h
diff --git a/editor/app/Scene/EditorSceneRuntime.cpp b/editor/app/Services/Scene/EditorSceneRuntime.cpp
similarity index 99%
rename from editor/app/Scene/EditorSceneRuntime.cpp
rename to editor/app/Services/Scene/EditorSceneRuntime.cpp
index 5182f7ee..3ebc3ca3 100644
--- a/editor/app/Scene/EditorSceneRuntime.cpp
+++ b/editor/app/Services/Scene/EditorSceneRuntime.cpp
@@ -1,4 +1,4 @@
-#include "EditorSceneRuntime.h"
+#include "Scene/EditorSceneRuntime.h"
 
 #include <XCEngine/Components/ComponentFactoryRegistry.h>
 #include <XCEngine/Components/CameraComponent.h>
diff --git a/editor/app/Scene/EditorSceneRuntime.h b/editor/app/Services/Scene/EditorSceneRuntime.h
similarity index 98%
rename from editor/app/Scene/EditorSceneRuntime.h
rename to editor/app/Services/Scene/EditorSceneRuntime.h
index 64ebcf98..cad32c86 100644
--- a/editor/app/Scene/EditorSceneRuntime.h
+++ b/editor/app/Services/Scene/EditorSceneRuntime.h
@@ -1,8 +1,8 @@
 #pragma once
 
-#include "EditorSceneBridge.h"
-#include "SceneViewportCameraController.h"
-#include "SceneToolState.h"
+#include "Scene/EditorSceneBridge.h"
+#include "Scene/SceneViewportCameraController.h"
+#include "Scene/SceneToolState.h"
 #include "State/EditorSelectionService.h"
 #include "Scene/SceneViewportRenderRequest.h"
 
diff --git a/editor/app/Scene/SceneToolState.h b/editor/app/Services/Scene/SceneToolState.h
similarity index 100%
rename from editor/app/Scene/SceneToolState.h
rename to editor/app/Services/Scene/SceneToolState.h
diff --git a/editor/app/Scene/SceneViewportCameraController.h b/editor/app/Services/Scene/SceneViewportCameraController.h
similarity index 100%
rename from editor/app/Scene/SceneViewportCameraController.h
rename to editor/app/Services/Scene/SceneViewportCameraController.h
diff --git a/tests/UI/Editor/unit/CMakeLists.txt b/tests/UI/Editor/unit/CMakeLists.txt
index c9091f2d..44fa9f5e 100644
--- a/tests/UI/Editor/unit/CMakeLists.txt
+++ b/tests/UI/Editor/unit/CMakeLists.txt
@@ -132,7 +132,6 @@ if(TARGET XCEditorCore)
             ${XCENGINE_EDITOR_UI_TESTS_EDITOR_ROOT}/app/Core
             ${XCENGINE_EDITOR_UI_TESTS_EDITOR_ROOT}/app/Features
             ${XCENGINE_EDITOR_UI_TESTS_EDITOR_ROOT}/app/Host/Interfaces
-            ${XCENGINE_EDITOR_UI_TESTS_EDITOR_ROOT}/app/Scene
             ${XCENGINE_EDITOR_UI_TESTS_EDITOR_ROOT}/app/Services
             ${XCENGINE_EDITOR_UI_TESTS_EDITOR_ROOT}/app/Support
             ${XCENGINE_EDITOR_UI_TESTS_EDITOR_ROOT}/include
@@ -175,7 +174,6 @@ if(TARGET XCEditorCore)
             ${XCENGINE_EDITOR_UI_TESTS_EDITOR_ROOT}/app/Features
             ${XCENGINE_EDITOR_UI_TESTS_EDITOR_ROOT}/app/Host/Interfaces
             ${XCENGINE_EDITOR_UI_TESTS_EDITOR_ROOT}/app/Rendering
-            ${XCENGINE_EDITOR_UI_TESTS_EDITOR_ROOT}/app/Scene
             ${XCENGINE_EDITOR_UI_TESTS_EDITOR_ROOT}/app/Services
             ${XCENGINE_EDITOR_UI_TESTS_EDITOR_ROOT}/app/Support
             ${XCENGINE_EDITOR_UI_TESTS_EDITOR_ROOT}/include
diff --git a/tests/UI/Editor/unit/test_hierarchy_scene_binding.cpp b/tests/UI/Editor/unit/test_hierarchy_scene_binding.cpp
index d1387b7d..19085ffa 100644
--- a/tests/UI/Editor/unit/test_hierarchy_scene_binding.cpp
+++ b/tests/UI/Editor/unit/test_hierarchy_scene_binding.cpp
@@ -1,5 +1,5 @@
 #include "Hierarchy/HierarchyModel.h"
-#include "EditorSceneBridge.h"
+#include "Scene/EditorSceneBridge.h"
 
 #include <XCEngine/Components/GameObject.h>
 #include <XCEngine/Core/Asset/ResourceManager.h>
diff --git a/tests/UI/Editor/unit/test_inspector_presentation.cpp b/tests/UI/Editor/unit/test_inspector_presentation.cpp
index a497b80d..17fe82ea 100644
--- a/tests/UI/Editor/unit/test_inspector_presentation.cpp
+++ b/tests/UI/Editor/unit/test_inspector_presentation.cpp
@@ -2,7 +2,7 @@
 #include "Inspector/Components/InspectorComponentEditorRegistry.h"
 #include "Inspector/InspectorPresentationModel.h"
 #include "Inspector/InspectorSubject.h"
-#include "EditorSceneRuntime.h"
+#include "Scene/EditorSceneRuntime.h"
 
 #include <XCEngine/Components/CameraComponent.h>
 #include <XCEngine/Components/GameObject.h>
diff --git a/tests/UI/Editor/unit/test_scene_viewport_runtime.cpp b/tests/UI/Editor/unit/test_scene_viewport_runtime.cpp
index f3c679b7..4ead961a 100644
--- a/tests/UI/Editor/unit/test_scene_viewport_runtime.cpp
+++ b/tests/UI/Editor/unit/test_scene_viewport_runtime.cpp
@@ -1,4 +1,4 @@
-#include "EditorSceneRuntime.h"
+#include "Scene/EditorSceneRuntime.h"
 #include "Scene/SceneViewportController.h"
 #include "Inspector/InspectorSubject.h"
 #include "Viewport/SceneViewportRenderService.h"