merge: WMO scene resource finalizer

RENDER.md

@@ -33,6 +33,7 @@ Paired run 2026-07-11 подтвердил крупный coordinate/placement g
 - `src/render/wmo/wmo_render_build_queue.gd` / `wmo_render_build_job.gd` - typed pending group jobs, FIFO placement keys and strong root/resource references without engine destruction.
 - `src/render/wmo/wmo_render_resource_cache_state.gd` - validated lightweight WMO render Resources, negative cache and pending cache paths without ResourceLoader I/O.
 - `src/render/wmo/wmo_render_resource_finalizer.gd` - lightweight WMO terminal polling, script/format validation and Resource/missing publication.
+- `src/render/wmo/wmo_scene_resource_finalizer.gd` - cached WMO terminal polling, PackedScene probe validation/lifetime and scene/missing publication.
 - `src/render/wmo/wmo_scene_resource_cache_state.gd` - validated cached-WMO PackedScenes, negative cache and pending `.tscn` paths without file/I/O/Node ownership.
 - `src/render/liquid/adt_water_load_pipeline_state.gd` - ADT water pending FIFO/dedupe, active task IDs and worker-safe parsed-result mailbox without parser or Node ownership.
 - `src/render/liquid/adt_water_scene_finalizer.gd` - stateless main-thread ADT water build/attach and optional persisted Editor ownership through the existing ADTBuilder.
@@ -1349,8 +1350,9 @@ $exe = Join-Path $env:TEMP 'godot-4.6.1-openwc\Godot_v4.6.1-stable_win64.exe'
 - `WmoSceneResourceCacheState` now owns validated cached-WMO PackedScenes,
   negative entries and normalized-path to pending-`.tscn` records.
 - `StreamingWorldLoader` still checks file existence and
-  `wmo_max_runtime_scene_mb`, calls `ResourceLoader`, instantiates a validation
-  probe, checks WMOBuilder cache metadata and frees the probe before adoption.
+  `wmo_max_runtime_scene_mb` and starts requests. `WmoSceneResourceFinalizer`
+  owns terminal ResourceLoader I/O, validation-probe instantiation, WMOBuilder
+  metadata validation and probe release before adoption.
 - Missing files, oversize scenes, request errors, load failures and stale scenes
   retain their prior negative-cache and live-prototype fallback behavior.
 - Map reset clears pending/negative state while retaining accepted scenes; final
@@ -1358,6 +1360,21 @@ $exe = Join-Path $env:TEMP 'godot-4.6.1-openwc\Godot_v4.6.1-stable_win64.exe'
 - Asset-backed oversize/stale fixtures, traversal/leak p95/p99 and paired fidelity
   evidence remain pending.
 
+## 2026-07-18 WMO Scene Resource Finalizer Extraction
+
+- `WmoSceneResourceFinalizer` now owns cached WMO `.tscn` terminal status
+  polling, loaded Resource/PackedScene validation, call-local probe lifetime and
+  exact scene/missing publication.
+- Pending snapshots preserve Dictionary insertion order. Non-terminal requests
+  remain pending; failed, null, wrong-type, wrong-root and stale outcomes keep
+  the existing negative-cache transition.
+- Current scenes retain exact PackedScene identity. Accepted and rejected probes
+  are freed before return; the rejected non-Node3D root now also releases its
+  temporary Node, closing a leak without changing fallback or visible output.
+- Loader retains file/size admission, oversize log, request start, live fallback,
+  placed Node materialization and shutdown order. Synthetic fixtures are not
+  serialized private assets, long leak, p95/p99 or visual-fidelity evidence.
+
 ## 2026-07-17 ADT Water Load Pipeline State Extraction
 
 - `AdtWaterLoadPipelineState` now owns ADT water pending FIFO/deduplication,

coordination/claims/M03-RND-WMO-SCENE-RESOURCE-FINALIZER-001.md

@@ -55,14 +55,21 @@ probe lifetime and scene/missing publication from the loader into one service.
 
 ## Status
 
-- State: active
-- Done: ownership/compatibility contract
-- Next: implementation, verification and documentation
+- State: ready
+- Done: implementation, verification and documentation
+- Next: merge and post-merge acceptance
 - Blocked by:
 
 ## Handoff
 
-- Commit:
-- Results:
-- Remaining risks:
-- Documentation updated:
+- Commit: `7779e9e` (`render: extract WMO scene resource finalizer`)
+- Results: finalizer PASS `cases=26 iterations=1000 elapsed_ms=4.186`;
+  adjacent WMO scene/render cache/finalizer/queue/planner/registry/resolver and
+  shutdown checks passed; autonomous headless suite `61/61`; documentation `48`;
+  coordination passed with `34` historical warnings; checkpoint dry-run `7/7`.
+- Remaining risks: PackedScene probe validation remains synchronous main-thread
+  work; no serialized private WMO stale/oversize, long leak, visual,
+  descriptor-pressure or p95/p99 evidence was added.
+- Documentation updated: new full module specification with API/I/O and
+  data-flow/state/sequence/dependency diagrams; adjacent WMO cache/world-renderer
+  specs, module registry, `RENDER.md` and M03 Evidence.

docs/modules/README.md

@@ -48,6 +48,7 @@
 | WMO render Resource cache state | Implemented extraction | [`wmo-render-resource-cache-state.md`](wmo-render-resource-cache-state.md) |
 | WMO render Resource finalizer | Implemented extraction | [`wmo-render-resource-finalizer.md`](wmo-render-resource-finalizer.md) |
 | WMO scene Resource cache state | Implemented extraction | [`wmo-scene-resource-cache-state.md`](wmo-scene-resource-cache-state.md) |
+| WMO scene Resource finalizer | Implemented extraction | [`wmo-scene-resource-finalizer.md`](wmo-scene-resource-finalizer.md) |
 | Third-person camera | Implemented | [`third-person-camera.md`](third-person-camera.md) |
 | Character presentation | Implemented boundary / Partial fidelity | [`character-presentation.md`](character-presentation.md) |
 | Renderer | Partial | [`world-renderer.md`](world-renderer.md), [`../../RENDER.md`](../../RENDER.md) |

docs/modules/wmo-scene-resource-cache-state.md

@@ -14,8 +14,9 @@
 
 Own mutually exclusive cached, missing and pending states for normalized WMO
 scene paths. The state accepts only caller-validated `PackedScene` references and
-records `.tscn` paths for threaded requests whose I/O, size limit and cache
-metadata validation remain in `StreamingWorldLoader`.
+records `.tscn` paths for threaded requests. Size admission remains in
+`StreamingWorldLoader`; terminal I/O/probe validation belongs to
+`WmoSceneResourceFinalizer`.
 
 ## Non-goals
 
@@ -33,8 +34,8 @@ flowchart LR
     Loader --> State[WmoSceneResourceCacheState]
     Loader --> Size[File existence and size limit]
     Size --> ResourceLoader[Godot ResourceLoader]
-    ResourceLoader --> Loader
-    Loader --> Probe[Instantiate, metadata/version check, free]
+    ResourceLoader --> Finalizer[WmoSceneResourceFinalizer]
+    Finalizer --> Probe[Instantiate, metadata/version check, free]
     Probe -->|accepted PackedScene or missing| State
     Loader --> Live[Live-prototype fallback]
 ```
@@ -82,7 +83,7 @@ flowchart TD
     Check -->|allowed| Request[Start threaded request]
     Request -->|error| Mark
     Request -->|accepted| Remember[remember_request]
-    Remember --> Poll[Loader polls snapshot]
+    Remember --> Poll[Scene Resource finalizer polls snapshot]
     Poll -->|failure| CompleteMissing[complete as missing]
     Poll -->|loaded| Validate[Instantiate and validate cache metadata]
     Validate -->|valid| CompleteScene[complete with scene]
@@ -114,24 +115,27 @@ stateDiagram-v2
 sequenceDiagram
     participant Loader as StreamingWorldLoader
     participant State as WmoSceneResourceCacheState
+    participant Finalizer as WmoSceneResourceFinalizer
     participant RL as ResourceLoader
     Loader->>State: cached/missing/pending queries
     Loader->>Loader: exists and wmo_max_runtime_scene_mb check
     Loader->>RL: load_threaded_request(.tscn)
     Loader->>State: remember_request(normalized, path)
     loop renderer tick
-        Loader->>State: request_paths_snapshot()
-        Loader->>RL: load_threaded_get_status(path)
+        Loader->>Finalizer: poll_terminal_requests(State)
+        Finalizer->>State: request_paths_snapshot()
+        Finalizer->>RL: load_threaded_get_status(path)
     end
-    Loader->>RL: load_threaded_get(path)
-    Loader->>Loader: instantiate, validate WMO metadata, free probe
-    Loader->>State: complete with scene or as missing
+    Finalizer->>RL: load_threaded_get(path)
+    Finalizer->>Finalizer: instantiate, validate WMO metadata, free probe
+    Finalizer->>State: complete with scene or as missing
 ```
 
 ## Ownership, threading and resources
 
 - State owns three Dictionaries and strong references to accepted PackedScenes.
-- Loader owns paths, file measurement, requests, validation and all Node lifetime.
+- Loader owns paths, file measurement, request admission and placed Nodes;
+  finalizer owns terminal I/O and call-local validation-probe lifetime.
 - All mutation is serialized on the renderer main thread; no mutex is required.
 - Detached request snapshots allow terminal removal while polling.
 - Scene instantiation borrows the PackedScene and does not transfer cache ownership.
@@ -143,7 +147,7 @@ sequenceDiagram
 | Missing `.tscn` | Loader ResourceLoader existence check | Direct missing state | Transient reset permits later retry |
 | Oversize `.tscn` | Loader byte limit | Missing plus unchanged debug log | Raise limit/rebuild, then reset |
 | Request-start/load failure | Loader error/status | Direct or terminal missing | Reset and retry later |
-| Wrong type/stale metadata | Loader PackedScene/probe validation | Terminal missing; probe freed | Rebuild cache and reset |
+| Wrong type/stale metadata | Finalizer PackedScene/probe validation | Terminal missing; probe freed | Rebuild cache and reset |
 | Shutdown while pending | Loader drains snapshot | Clear transient, then full cache release | New loader starts absent |
 
 ## Configuration and capabilities
@@ -184,8 +188,9 @@ in the loader; the state emits no logs.
 | Capability | Status | Evidence | Gap/next step |
 |---|---|---|---|
 | Cached WMO PackedScene state | Implemented extraction | Lifecycle/source/timing and shutdown verifiers | Asset-backed traversal/leak evidence pending |
-| Size and cache metadata validation | Preserved in loader | Source boundary and WMO regressions | Oversize/stale asset fixtures could follow |
-| ResourceLoader I/O and live fallback | Partial/loader-owned | Existing runtime behavior | Separate extraction if justified |
+| Size admission | Preserved in loader | Source boundary and WMO regressions | Oversize asset fixture could follow |
+| Terminal I/O and cache validation | Implemented extraction | Finalizer type/lifetime/source/timing verifier | Serialized stale fixture pending |
+| Live fallback | Loader-owned | Existing runtime behavior | Separate extraction if justified |
 
 ## Known gaps and risks
 
@@ -199,7 +204,8 @@ in the loader; the state emits no logs.
 | Path | Responsibility |
 |---|---|
 | `src/render/wmo/wmo_scene_resource_cache_state.gd` | Scene/missing/request state and resets |
-| `src/scenes/streaming/streaming_world_loader.gd` | Paths, file limit, requests, validation, fallback and Node lifetime |
+| `src/render/wmo/wmo_scene_resource_finalizer.gd` | Terminal I/O, probe validation/lifetime and publication |
+| `src/scenes/streaming/streaming_world_loader.gd` | Paths, file limit, request admission, fallback and placed Nodes |
 | `src/tools/verify_wmo_scene_resource_cache_state.gd` | State, boundary and timing regression |
 | `src/tools/verify_render_runtime_cache_shutdown.gd` | Loader final cache ownership regression |
 

docs/modules/wmo-scene-resource-finalizer.md

@@ -0,0 +1,233 @@
+# WMO Scene Resource Finalizer
+
+## Metadata
+
+| Field | Value |
+|---|---|
+| Status | Implemented extraction |
+| Target/work package | M03 / `M03-RND-WMO-SCENE-RESOURCE-FINALIZER-001` |
+| Owners | Cached WMO PackedScene terminal polling, validation-probe lifetime and scene/missing publication |
+| Last verified | Worktree `work/sindo-main-codex/m03-wmo-scene-resource-finalizer`, 2026-07-18 |
+| Profiles/capabilities | Profile-independent cached WMO `.tscn` finalization |
+
+## Purpose
+
+Finalize pending cached WMO `.tscn` requests outside `StreamingWorldLoader`:
+poll terminal status, retrieve a PackedScene, instantiate one validation probe,
+apply existing WMOBuilder cache metadata rules, release the probe and publish
+either the exact scene or the historical missing outcome.
+
+## Non-goals
+
+- Select paths, measure file size or start ResourceLoader requests.
+- Instantiate placed WMO scenes or execute live WMOBuilder fallback.
+- Own cache lifetime, placements, build queues, permits or attached Nodes.
+- Change cache metadata/version rules, fallback order or visible behavior.
+
+## Context and boundaries
+
+```mermaid
+flowchart LR
+    Loader[StreamingWorldLoader] -->|compose and tick| Finalizer[WmoSceneResourceFinalizer]
+    Cache[WmoSceneResourceCacheState] -->|pending snapshot| Finalizer
+    Finalizer --> ResourceLoader
+    Finalizer --> Probe[Temporary Node3D probe]
+    Probe --> Validator[WMOBuilder cache validator]
+    Finalizer -->|PackedScene or missing| Cache
+    Cache --> Fallback[Placed cached scene or live fallback]
+```
+
+The service may depend on ResourceLoader, PackedScene/Node3D lifetime and the
+injected cache validator. FileAccess, size policy, placement, attached SceneTree,
+scheduler and application layers remain outside it.
+
+## Public API
+
+| Symbol | Kind | Purpose | Thread/lifetime | Errors |
+|---|---|---|---|---|
+| `poll_terminal_requests(cache_state)` | Command/query | Poll every pending scene path once and publish terminal outcomes | Renderer main thread; stateless between calls | Null state returns zero; non-terminal retained |
+| `is_scene_cache_current(scene)` | Command/query | Instantiate, validate and release one probe | Renderer main thread; call-local Node | Null/no validator/wrong root/stale false |
+| `load_threaded_get_status(path)` | Boundary query | Read threaded status | Renderer main thread; injectable tests | ResourceLoader semantics |
+| `load_threaded_get(path)` | Boundary query | Retrieve terminal Resource | Renderer main thread; injectable tests | Null/wrong type rejected |
+
+## Inputs and outputs
+
+| Direction | Contract/data | Producer | Consumer | Ownership | Thread/lifetime |
+|---|---|---|---|---|---|
+| Input | Detached normalized-path to `.tscn` path Dictionary | Scene cache state | Finalizer polling | Caller-owned copy | One pass |
+| Input | Opaque load status/terminal Resource | ResourceLoader | Finalizer | Value/borrowed Resource | One path |
+| Input | Cached WMO PackedScene | ResourceLoader | Probe validator | Borrowed reference | One completion |
+| Input | Metadata validator | Loader composition | Finalizer | Borrowed Object | Finalizer lifetime |
+| Output | Exact validated PackedScene | Finalizer | Scene cache state | Cache adopts strong reference | Until full clear |
+| Output | Missing transition | Finalizer | Scene cache state | Path-only state | Until transient clear |
+| Side effect | Temporary validation Node | PackedScene/finalizer | Validator | Finalizer-owned | Freed before return |
+
+## Data flow
+
+```mermaid
+flowchart TD
+    Snapshot[Detached pending snapshot] --> Poll[Poll next status in insertion order]
+    Poll --> Terminal{Loaded or failed?}
+    Terminal -->|no| Retain[Retain pending]
+    Terminal -->|failed| Missing[Complete missing]
+    Terminal -->|loaded| Get[Get Resource]
+    Get --> Type{PackedScene?}
+    Type -->|no| Missing
+    Type -->|yes| Instantiate[Instantiate one probe]
+    Instantiate --> Root{Node3D root?}
+    Root -->|no| FreeRejected[Free rejected Node] --> Missing
+    Root -->|yes| Validate[WMOBuilder metadata validation]
+    Validate --> Free[Free Node3D probe]
+    Free --> Current{Current?}
+    Current -->|yes| Adopt[Adopt exact PackedScene]
+    Current -->|no| Missing
+```
+
+## Lifecycle/state
+
+```mermaid
+stateDiagram-v2
+    [*] --> Polling
+    Polling --> Pending: non-terminal
+    Polling --> Probing: loaded PackedScene
+    Polling --> Missing: failed/null/wrong type
+    Probing --> Missing: wrong root or stale metadata
+    Probing --> Cached: current metadata
+    Probing --> Released: probe freed before outcome
+    Released --> Missing
+    Released --> Cached
+    Pending --> Polling: later tick
+```
+
+The finalizer retains no request or Node. Cache state owns Pending/Cached/Missing
+lifetime; every instantiated probe is synchronously released before return.
+
+## Main sequence
+
+```mermaid
+sequenceDiagram
+    participant Loader as StreamingWorldLoader
+    participant Finalizer as WmoSceneResourceFinalizer
+    participant Cache as WmoSceneResourceCacheState
+    participant RL as ResourceLoader
+    participant Validator as WMOBuilder validator
+    Loader->>Finalizer: poll_terminal_requests(Cache)
+    Finalizer->>Cache: request_paths_snapshot()
+    loop insertion-ordered paths
+        Finalizer->>RL: load_threaded_get_status(path)
+        alt failed
+            Finalizer->>Cache: complete_request_as_missing(path)
+        else loaded
+            Finalizer->>RL: load_threaded_get(path)
+            Finalizer->>Finalizer: instantiate Node3D probe
+            Finalizer->>Validator: is_scene_cache_current(probe)
+            Finalizer->>Finalizer: free probe
+            Finalizer->>Cache: complete with exact scene or missing
+        else non-terminal
+            Finalizer->>Finalizer: retain request
+        end
+    end
+```
+
+## Dependency diagram
+
+```mermaid
+flowchart TB
+    Loader[StreamingWorldLoader] --> Finalizer[WmoSceneResourceFinalizer]
+    Loader --> Cache[WmoSceneResourceCacheState]
+    Finalizer --> Cache
+    Finalizer --> ResourceLoader
+    Finalizer --> PackedScene
+    Finalizer --> Node3D
+    Finalizer --> Validator[WMOBuilder cache validator]
+    Finalizer -. no dependency .-> FileAccess
+    Finalizer -. no dependency .-> Placement
+    Finalizer -. no dependency .-> Scheduler
+```
+
+## Ownership, threading and resources
+
+- Renderer main thread serializes polling, instantiation and cache publication.
+- Finalizer owns every call-local validation probe and frees it before return.
+- Non-Node3D rejected roots are also freed, closing the prior leak edge.
+- Cache state adopts accepted exact PackedScene references until full clear.
+- Loader owns admission/size policy, live fallback, placed Nodes and shutdown order.
+
+## Errors, cancellation and recovery
+
+| Failure/state | Detection | Behavior | Diagnostic | Recovery |
+|---|---|---|---|---|
+| Null cache state | Guard | Return zero | Contract verifier | Correct composition |
+| Non-terminal | Status | Retain pending | Pending count | Poll later |
+| Failed/null/wrong Resource | Status/type | Complete missing | Synthetic fixture | Reset/rebuild cache |
+| Non-Node3D root | Probe type | Free probe; complete missing | Type/lifetime fixture | Rebuild cache |
+| Stale metadata | Injected validator | Free probe; complete missing | Validation fixture | Rebuild/reset |
+| Shutdown | Loader lifecycle | Drain then clear cache | Shutdown verifier | New loader starts absent |
+
+## Configuration and capabilities
+
+The loader injects the existing WMOBuilder cache validator. `wmo_cache_dir`,
+`wmo_max_runtime_scene_mb`, debug logging, request timing and WMO budgets remain
+loader-owned. No setting, profile or cache version is added.
+
+## Persistence, cache and migration
+
+No data is serialized. Existing WMOBuilder metadata/version acceptance is called
+unchanged before adoption. The rejected-root lifetime fix needs no migration or
+rebake and does not alter accepted cache output.
+
+## Diagnostics and observability
+
+- Poll returns terminal completion count for tests/future metrics.
+- Existing pending count and renderer `wmobuild` metrics remain unchanged.
+- No logs are emitted; oversize debug logging remains at loader admission.
+- Normalized WMO relative path remains the correlation key.
+
+## Verification
+
+- `verify_wmo_scene_resource_finalizer.gd`: null/non-terminal, insertion order,
+  failed/load boundary, null/wrong/non-Node3D/stale rejection, current exact
+  identity, accepted/rejected probe release, source ownership and timing.
+- Scene cache, render finalizer/cache, WMO queue/planner/registry/resolver,
+  shutdown, facade, internal-access and baseline regressions cover neighbors.
+- Fidelity evidence is exact orchestration extraction plus rejected-root leak
+  repair; no asset-backed visual or original-client parity claim is made.
+
+## Extension points
+
+- Legal current/stale serialized `.tscn` fixtures can extend evidence unchanged.
+- Placed-scene preparation stays separate because it mutates an attached WMO
+  instance rather than a call-local validation probe.
+
+## Capability status
+
+| Capability | Status | Evidence | Gap/next step |
+|---|---|---|---|
+| Cached WMO scene terminal polling | Implemented extraction | Status/order/source/timing verifier | Asset-backed traversal pending |
+| Probe validation/lifetime | Implemented extraction | Current/stale/type/free fixtures | Serialized fixture pending |
+| Scene/missing publication | Implemented extraction | Exact identity/negative fixtures | Asset-backed lifetime/leak run pending |
+| File-size admission/live fallback | Loader-owned | Existing scene-cache regressions | Separate extraction if justified |
+
+## Known gaps and risks
+
+- PackedScene instantiation/metadata validation remains synchronous main-thread work.
+- No proprietary WMO corpus, serialized stale/oversize fixture, long leak run,
+  traversal p95/p99 or paired original-client capture is included.
+
+## Source map
+
+| Path | Responsibility |
+|---|---|
+| `src/render/wmo/wmo_scene_resource_finalizer.gd` | Terminal polling, probe validation/lifetime and publication |
+| `src/render/wmo/wmo_scene_resource_cache_state.gd` | Scene/missing/request ownership and resets |
+| `src/scenes/streaming/streaming_world_loader.gd` | Admission/size policy, live fallback and placed Node ownership |
+| `addons/mpq_extractor/loaders/wmo_builder.gd` | Existing cache metadata/version validation |
+| `src/tools/verify_wmo_scene_resource_finalizer.gd` | Terminal/probe/lifetime/source/timing regression |
+
+## Related decisions and references
+
+- [`wmo-scene-resource-cache-state.md`](wmo-scene-resource-cache-state.md)
+- [`wmo-render-resource-finalizer.md`](wmo-render-resource-finalizer.md)
+- [`world-renderer.md`](world-renderer.md)
+- [`../../RENDER.md`](../../RENDER.md)
+- [`../../targets/roadmap/02-rendering-and-graphics.md`](../../targets/roadmap/02-rendering-and-graphics.md)

docs/modules/world-renderer.md

@@ -167,6 +167,7 @@ from externally reading/writing loader-private queue, task, cache and tile-state
 | `WmoRenderResourceCacheState` | Internal WMO cache-state service | Owns validated Resources, negative entries and pending cache paths | Renderer main thread; map/cache session | Invalid/occupied request and unknown completion are rejected |
 | `WmoRenderResourceFinalizer` | Internal WMO terminal-I/O service | Polls lightweight render requests, validates script/format and publishes Resource/missing outcomes | Renderer main thread; stateless across calls | Non-terminal retained; failed/null/wrong/stale complete missing |
 | `WmoSceneResourceCacheState` | Internal WMO cache-state service | Owns validated PackedScenes, negative entries and pending `.tscn` paths | Renderer main thread; map/cache session | Direct missing and terminal request transitions remain distinct |
+| `WmoSceneResourceFinalizer` | Internal WMO terminal-I/O service | Polls cached scene requests, validates/frees probes and publishes scene/missing outcomes | Renderer main thread; stateless across calls | Failed/wrong/stale scenes complete missing; probes always released |
 | `AdtWaterLoadPipelineState` | Internal liquid async-state service | Owns ADT water FIFO/dedupe, active task IDs and mutex result mailbox | Main-thread state; worker result publication | Invalid/duplicate requests rejected; clear does not interrupt workers |
 | `AdtWaterSceneFinalizer.attach_water_scene` | Internal liquid main-thread service | Builds and attaches one existing-format ADT Water subtree | Main thread; stateless, returned Node tile-owned | Empty/invalid/dry input returns null without attachment |
 
@@ -416,9 +417,10 @@ sequenceDiagram
   and pending cache paths; `WmoRenderResourceFinalizer` owns its terminal
   ResourceLoader polling and script/format validation. `WmoSceneResourceCacheState`
   similarly owns validated PackedScenes, negative entries and pending `.tscn`
-  paths. The loader retains request admission, PackedScene/FileAccess I/O, size
-  and scene-cache validation, live fallback, materialization, permits, validity
-  reactions and every Node lifecycle action.
+  paths; `WmoSceneResourceFinalizer` owns terminal ResourceLoader I/O and
+  validation-probe lifetime. The loader retains request admission, FileAccess
+  size checks, live fallback, materialization, permits, validity reactions and
+  every placed-Node lifecycle action.
 - `AdtWaterLoadPipelineState` owns pending request order/deduplication, opaque
   active task IDs and the worker-safe parsed-result mailbox. The loader retains
   WorkerThreadPool start/wait, ADTLoader parsing, concurrency/finalize permits,
@@ -618,7 +620,8 @@ Exact exported settings and cache versions remain documented in [`../../RENDER.m
 | WMO render build queue | Implemented extraction | Typed lifecycle/order/ownership/source/timing contract | Materialization and asset-backed traversal/leak evidence pending |
 | WMO render Resource cache state | Implemented extraction | Scene-free lifecycle/exclusivity/source/timing plus shutdown contract | Asset-backed traversal/leak evidence pending |
 | WMO render Resource finalizer | Implemented extraction | Status/order/script/format/adoption/source/timing contract | Serialized/asset-backed corrupt-cache and leak evidence pending |
-| WMO scene Resource cache state | Implemented extraction | Scene-free lifecycle/direct-missing/source/timing plus shutdown contract | ResourceLoader/live-fallback extraction and asset-backed traversal/leak evidence pending |
+| WMO scene Resource cache state | Implemented extraction | Scene-free lifecycle/direct-missing/source/timing plus shutdown contract | Asset-backed traversal/leak evidence pending |
+| WMO scene Resource finalizer | Implemented extraction | Status/order/type/probe/lifetime/adoption/source/timing contract | Serialized stale/oversize and asset-backed evidence pending |
 | WMO rendering | Partial | Cached group rendering | Portals/rooms/material parity |
 | ADT water load pipeline state | Implemented extraction | Scene-free FIFO/task/thread/source/timing contract | Parse/finalization and asset-backed traversal/leak evidence pending |
 | Liquids | Partial | MH2O/MLIQ paths | LiquidType/depth/shore fidelity |
@@ -694,6 +697,7 @@ Exact exported settings and cache versions remain documented in [`../../RENDER.m
 | `src/render/m2/m2_native_animation_resource_observer.gd` | Native candidate/read/build/cache observation |
 | `src/render/m2/m2_prototype_cache_state.gd` | Detached prototype ownership and negative lookup outcomes |
 | `src/render/wmo/wmo_render_resource_finalizer.gd` | Lightweight WMO terminal polling, validation and publication |
+| `src/render/wmo/wmo_scene_resource_finalizer.gd` | Cached WMO terminal polling, probe validation/lifetime and publication |
 | `src/render/streaming/streaming_target_planner.gd` | Scene-free wanted/retained ADT target calculation |
 | `src/render/streaming/streaming_target_policy.gd` | Immutable renderer radius/prefetch policy |
 | `src/render/streaming/streaming_target_plan.gd` | Immutable planner result with read-only tile-key sets |
@@ -729,6 +733,7 @@ Exact exported settings and cache versions remain documented in [`../../RENDER.m
 | `src/tools/verify_m2_native_animation_resource_observer.gd` | Native candidate/cache/raw/build/adoption/boundary/timing regression |
 | `src/tools/verify_m2_prototype_cache_state.gd` | M2 prototype identity/negative/lifecycle/boundary/timing regression |
 | `src/tools/verify_wmo_render_resource_finalizer.gd` | WMO render status/order/validation/adoption/boundary/timing regression |
+| `src/tools/verify_wmo_scene_resource_finalizer.gd` | WMO scene status/order/probe/lifetime/adoption/boundary/timing regression |
 | `src/tools/verify_streaming_target_planner.gd` | Planner behavior, dependency and bounded timing regression |
 | `src/tools/verify_render_budget_scheduler.gd` | Scheduler bounds, shared-lane priority, cancellation and timing regression |
 | `src/tools/verify_renderer_internal_access.gd` | Gameplay/EditorPlugin/registered renderer-tool boundary gate derived from private streamer fields |

src/render/wmo/wmo_scene_resource_finalizer.gd

@@ -0,0 +1,97 @@
+class_name WmoSceneResourceFinalizer
+extends RefCounted
+
+## Polls cached WMO PackedScene requests and publishes validated outcomes.
+## File-size admission, live fallback and attached Node lifetime remain caller-owned.
+
+var _scene_cache_validator: Object
+var _resource_loader_adapter: Object
+
+
+func _init(
+	scene_cache_validator: Object,
+	resource_loader_adapter: Object = null
+) -> void:
+	_scene_cache_validator = scene_cache_validator
+	_resource_loader_adapter = resource_loader_adapter
+
+
+## Polls a detached pending snapshot in insertion order. Terminal requests are
+## published as the exact validated PackedScene or the historical missing state.
+func poll_terminal_requests(scene_resource_cache_state: RefCounted) -> int:
+	if scene_resource_cache_state == null:
+		return 0
+	var completed_request_count := 0
+	var request_paths: Dictionary = scene_resource_cache_state.call(
+		"request_paths_snapshot"
+	)
+	for normalized_relative_path_variant in request_paths.keys():
+		var normalized_relative_path := String(normalized_relative_path_variant)
+		var resource_path := String(request_paths[normalized_relative_path_variant])
+		var load_status := load_threaded_get_status(resource_path)
+		if (
+			load_status != ResourceLoader.THREAD_LOAD_LOADED
+			and load_status != ResourceLoader.THREAD_LOAD_FAILED
+		):
+			continue
+		if load_status != ResourceLoader.THREAD_LOAD_LOADED:
+			scene_resource_cache_state.call(
+				"complete_request_as_missing",
+				normalized_relative_path
+			)
+			completed_request_count += 1
+			continue
+		var loaded_resource := load_threaded_get(resource_path)
+		var loaded_scene := loaded_resource as PackedScene
+		if is_scene_cache_current(loaded_scene):
+			scene_resource_cache_state.call(
+				"complete_request_with_scene",
+				normalized_relative_path,
+				loaded_scene
+			)
+		else:
+			scene_resource_cache_state.call(
+				"complete_request_as_missing",
+				normalized_relative_path
+			)
+		completed_request_count += 1
+	return completed_request_count
+
+
+## Instantiates one Node3D probe, delegates the existing WMOBuilder metadata
+## check and synchronously releases the probe before returning.
+func is_scene_cache_current(scene: PackedScene) -> bool:
+	if scene == null or _scene_cache_validator == null:
+		return false
+	var instantiated_node := scene.instantiate()
+	if not (instantiated_node is Node3D):
+		if instantiated_node != null:
+			instantiated_node.free()
+		return false
+	var instance := instantiated_node as Node3D
+	var is_current := bool(_scene_cache_validator.call(
+		"is_scene_cache_current",
+		instance
+	))
+	instance.free()
+	return is_current
+
+
+## Production ResourceLoader status boundary; injectable for synthetic tests.
+func load_threaded_get_status(resource_path: String) -> int:
+	if _resource_loader_adapter != null:
+		return int(_resource_loader_adapter.call(
+			"load_threaded_get_status",
+			resource_path
+		))
+	return ResourceLoader.load_threaded_get_status(resource_path)
+
+
+## Production ResourceLoader result boundary; injectable for synthetic tests.
+func load_threaded_get(resource_path: String) -> Resource:
+	if _resource_loader_adapter != null:
+		return _resource_loader_adapter.call(
+			"load_threaded_get",
+			resource_path
+		) as Resource
+	return ResourceLoader.load_threaded_get(resource_path)

src/render/wmo/wmo_scene_resource_finalizer.gd.uid

@@ -0,0 +1 @@
+uid://cp2r3tadn8l6q

src/scenes/streaming/streaming_world_loader.gd

@@ -30,6 +30,9 @@ const WMO_RENDER_RESOURCE_FINALIZER_SCRIPT := preload(
 const WMO_SCENE_RESOURCE_CACHE_STATE_SCRIPT := preload(
 	"res://src/render/wmo/wmo_scene_resource_cache_state.gd"
 )
+const WMO_SCENE_RESOURCE_FINALIZER_SCRIPT := preload(
+	"res://src/render/wmo/wmo_scene_resource_finalizer.gd"
+)
 const M2_BUILDER_SCRIPT := preload("res://addons/mpq_extractor/loaders/m2_builder.gd")
 const M2_NATIVE_ANIMATOR_SCRIPT := preload("res://src/scenes/streaming/m2_native_animator.gd")
 const STREAMING_FOCUS_SCRIPT := preload("res://src/domain/streaming/streaming_focus.gd")
@@ -370,6 +373,9 @@ var _wmo_render_resource_finalizer := WMO_RENDER_RESOURCE_FINALIZER_SCRIPT.new(
 )
 var _wmo_render_build_queue := WMO_RENDER_BUILD_QUEUE_SCRIPT.new()
 var _wmo_scene_resource_cache_state := WMO_SCENE_RESOURCE_CACHE_STATE_SCRIPT.new()
+var _wmo_scene_resource_finalizer := WMO_SCENE_RESOURCE_FINALIZER_SCRIPT.new(
+	WMO_BUILDER_SCRIPT
+)
 var _wmo_missing_cache: Dictionary = {}
 var _wmo_placement_resolver := WMO_PLACEMENT_RESOLVER_SCRIPT.new()
 var _world_wmo_root: Node3D
@@ -3711,24 +3717,9 @@ func _process_wmo_build_jobs() -> void:
 
 
 func _drain_wmo_scene_loads() -> void:
-	var request_paths := _wmo_scene_resource_cache_state.request_paths_snapshot()
-	for normalized_rel_variant in request_paths.keys():
-		var normalized_rel := String(normalized_rel_variant)
-		var path := String(request_paths[normalized_rel])
-		var status := ResourceLoader.load_threaded_get_status(path)
-		if status != ResourceLoader.THREAD_LOAD_LOADED and status != ResourceLoader.THREAD_LOAD_FAILED:
-			continue
-		if status != ResourceLoader.THREAD_LOAD_LOADED:
-			_wmo_scene_resource_cache_state.complete_request_as_missing(normalized_rel)
-			continue
-		var resource: Resource = ResourceLoader.load_threaded_get(path)
-		if resource is PackedScene and _is_wmo_scene_cache_current(resource as PackedScene):
-			_wmo_scene_resource_cache_state.complete_request_with_scene(
-				normalized_rel,
-				resource as PackedScene
+	_wmo_scene_resource_finalizer.poll_terminal_requests(
+		_wmo_scene_resource_cache_state
 	)
-		else:
-			_wmo_scene_resource_cache_state.complete_request_as_missing(normalized_rel)
 
 
 func _drain_wmo_render_loads() -> void:
@@ -3926,17 +3917,6 @@ func _get_resource_file_size(path: String) -> int:
 	return int(length)
 
 
-func _is_wmo_scene_cache_current(scene: PackedScene) -> bool:
-	if scene == null:
-		return false
-	var instance := scene.instantiate() as Node3D
-	if instance == null:
-		return false
-	var current := _is_wmo_node_cache_current(instance)
-	instance.free()
-	return current
-
-
 func _is_wmo_node_cache_current(node: Node) -> bool:
 	if node == null:
 		return false

src/tools/verify_wmo_scene_resource_cache_state.gd

@@ -6,6 +6,7 @@ const CACHE_STATE_SCRIPT := preload(
 	"res://src/render/wmo/wmo_scene_resource_cache_state.gd"
 )
 const CACHE_STATE_PATH := "res://src/render/wmo/wmo_scene_resource_cache_state.gd"
+const FINALIZER_PATH := "res://src/render/wmo/wmo_scene_resource_finalizer.gd"
 const LOADER_PATH := "res://src/scenes/streaming/streaming_world_loader.gd"
 
 
@@ -233,6 +234,7 @@ func _verify_detached_sorted_diagnostics(failures: Array[String]) -> void:
 func _verify_ownership_boundaries(failures: Array[String]) -> void:
 	var loader_source := _read_text(LOADER_PATH, failures)
 	var cache_state_source := _read_text(CACHE_STATE_PATH, failures)
+	var finalizer_source := _read_text(FINALIZER_PATH, failures)
 	_expect_true(
 		loader_source.contains("WMO_SCENE_RESOURCE_CACHE_STATE_SCRIPT.new()"),
 		"loader composes scene cache state",
@@ -266,15 +268,22 @@ func _verify_ownership_boundaries(failures: Array[String]) -> void:
 	for retained_loader_rule in [
 		"wmo_max_runtime_scene_mb",
 		"_get_resource_file_size(cache_path)",
-		"_is_wmo_scene_cache_current(resource as PackedScene)",
-		"scene.instantiate() as Node3D",
-		"WMO_BUILDER_SCRIPT.is_scene_cache_current(node)",
 	]:
 		_expect_true(
 			loader_source.contains(retained_loader_rule),
 			"loader retains %s" % retained_loader_rule,
 			failures
 		)
+	for finalizer_rule in [
+		"scene.instantiate()",
+		"is_scene_cache_current",
+		"instance.free()",
+	]:
+		_expect_true(
+			finalizer_source.contains(finalizer_rule),
+			"finalizer owns %s" % finalizer_rule,
+			failures
+		)
 
 
 func _verify_bounded_timing(failures: Array[String]) -> float:

src/tools/verify_wmo_scene_resource_finalizer.gd

@@ -0,0 +1,346 @@
+extends SceneTree
+
+## Asset-free terminal-I/O, probe validation/lifetime, adoption, boundary and
+## timing regression for the cached WMO PackedScene finalizer.
+
+const FINALIZER_SCRIPT := preload("res://src/render/wmo/wmo_scene_resource_finalizer.gd")
+const CACHE_STATE_SCRIPT := preload("res://src/render/wmo/wmo_scene_resource_cache_state.gd")
+const FINALIZER_PATH := "res://src/render/wmo/wmo_scene_resource_finalizer.gd"
+const CACHE_STATE_PATH := "res://src/render/wmo/wmo_scene_resource_cache_state.gd"
+const LOADER_PATH := "res://src/scenes/streaming/streaming_world_loader.gd"
+
+
+class FakeSceneCacheValidator extends RefCounted:
+	var validated_nodes: Array[Node] = []
+
+	func is_scene_cache_current(node: Node) -> bool:
+		validated_nodes.append(node)
+		return bool(node.get_meta("current_wmo_cache", false))
+
+
+class FakeResourceLoaderAdapter extends RefCounted:
+	var status_by_path: Dictionary = {}
+	var resource_by_path: Dictionary = {}
+	var status_paths: Array[String] = []
+	var loaded_paths: Array[String] = []
+
+	func load_threaded_get_status(resource_path: String) -> int:
+		status_paths.append(resource_path)
+		return int(status_by_path.get(resource_path, ResourceLoader.THREAD_LOAD_IN_PROGRESS))
+
+	func load_threaded_get(resource_path: String) -> Resource:
+		loaded_paths.append(resource_path)
+		return resource_by_path.get(resource_path) as Resource
+
+
+func _initialize() -> void:
+	var failures: Array[String] = []
+	_verify_null_and_non_terminal_poll(failures)
+	_verify_failed_and_loaded_poll_order(failures)
+	_verify_loaded_resource_rejections(failures)
+	_verify_current_scene_adoption_and_probe_lifetime(failures)
+	_verify_validation_contract(failures)
+	_verify_source_boundaries(failures)
+	var elapsed_milliseconds := _verify_bounded_timing(failures)
+	if not failures.is_empty():
+		for failure in failures:
+			push_error("WMO_SCENE_RESOURCE_FINALIZER: %s" % failure)
+		quit(1)
+		return
+	print(
+		"WMO_SCENE_RESOURCE_FINALIZER PASS cases=26 iterations=1000 elapsed_ms=%.3f"
+		% elapsed_milliseconds
+	)
+	quit(0)
+
+
+func _verify_null_and_non_terminal_poll(failures: Array[String]) -> void:
+	var validator := FakeSceneCacheValidator.new()
+	var adapter := FakeResourceLoaderAdapter.new()
+	var finalizer: RefCounted = FINALIZER_SCRIPT.new(validator, adapter)
+	_expect_equal(
+		int(finalizer.call("poll_terminal_requests", null)),
+		0,
+		"null cache state rejected",
+		failures
+	)
+	var cache_state: RefCounted = CACHE_STATE_SCRIPT.new()
+	cache_state.call("remember_request", "world/pending.wmo", "res://cache/pending.tscn")
+	_expect_equal(
+		int(finalizer.call("poll_terminal_requests", cache_state)),
+		0,
+		"non-terminal request retained",
+		failures
+	)
+	_expect_true(
+		bool(cache_state.call("has_request", "world/pending.wmo")),
+		"pending state remains",
+		failures
+	)
+	_expect_string_array(
+		adapter.status_paths,
+		["res://cache/pending.tscn"],
+		"pending path polled once",
+		failures
+	)
+	_expect_equal(adapter.loaded_paths.size(), 0, "pending scene not loaded", failures)
+
+
+func _verify_failed_and_loaded_poll_order(failures: Array[String]) -> void:
+	var validator := FakeSceneCacheValidator.new()
+	var adapter := FakeResourceLoaderAdapter.new()
+	var finalizer: RefCounted = FINALIZER_SCRIPT.new(validator, adapter)
+	var current_scene := _packed_scene(true, true, failures)
+	var cache_state: RefCounted = CACHE_STATE_SCRIPT.new()
+	var requests := {
+		"world/pending.wmo": "res://cache/pending.tscn",
+		"world/failed.wmo": "res://cache/failed.tscn",
+		"world/loaded.wmo": "res://cache/loaded.tscn",
+	}
+	for normalized_relative_path in requests:
+		cache_state.call(
+			"remember_request",
+			normalized_relative_path,
+			requests[normalized_relative_path]
+		)
+	adapter.status_by_path = {
+		"res://cache/failed.tscn": ResourceLoader.THREAD_LOAD_FAILED,
+		"res://cache/loaded.tscn": ResourceLoader.THREAD_LOAD_LOADED,
+	}
+	adapter.resource_by_path["res://cache/loaded.tscn"] = current_scene
+	_expect_equal(
+		int(finalizer.call("poll_terminal_requests", cache_state)),
+		2,
+		"failed and loaded scenes complete",
+		failures
+	)
+	_expect_string_array(
+		adapter.status_paths,
+		[
+			"res://cache/pending.tscn",
+			"res://cache/failed.tscn",
+			"res://cache/loaded.tscn",
+		],
+		"detached insertion order preserved",
+		failures
+	)
+	_expect_string_array(
+		adapter.loaded_paths,
+		["res://cache/loaded.tscn"],
+		"only loaded terminal scene retrieved",
+		failures
+	)
+	_expect_true(
+		bool(cache_state.call("is_missing", "world/failed.wmo")),
+		"failed request publishes missing",
+		failures
+	)
+	_expect_true(
+		cache_state.call("scene_for", "world/loaded.wmo") == current_scene,
+		"loaded scene identity adopted",
+		failures
+	)
+
+
+func _verify_loaded_resource_rejections(failures: Array[String]) -> void:
+	var validator := FakeSceneCacheValidator.new()
+	var adapter := FakeResourceLoaderAdapter.new()
+	var finalizer: RefCounted = FINALIZER_SCRIPT.new(validator, adapter)
+	var rejected_resources := {
+		"null": null,
+		"wrong_type": Resource.new(),
+		"stale": _packed_scene(false, true, failures),
+		"non_node_3d": _packed_scene(true, false, failures),
+	}
+	var cache_state: RefCounted = CACHE_STATE_SCRIPT.new()
+	for rejection_name in rejected_resources:
+		var normalized_relative_path := "world/%s.wmo" % rejection_name
+		var cache_path := "res://cache/%s.tscn" % rejection_name
+		cache_state.call("remember_request", normalized_relative_path, cache_path)
+		adapter.status_by_path[cache_path] = ResourceLoader.THREAD_LOAD_LOADED
+		adapter.resource_by_path[cache_path] = rejected_resources[rejection_name]
+	_expect_equal(
+		int(finalizer.call("poll_terminal_requests", cache_state)),
+		4,
+		"all invalid loaded Resources complete",
+		failures
+	)
+	for rejection_name in rejected_resources:
+		_expect_true(
+			bool(cache_state.call("is_missing", "world/%s.wmo" % rejection_name)),
+			"%s loaded Resource publishes missing" % rejection_name,
+			failures
+		)
+	_expect_equal(
+		validator.validated_nodes.size(),
+		1,
+		"only Node3D stale scene reaches validator",
+		failures
+	)
+	_expect_false(
+		is_instance_valid(validator.validated_nodes[0]),
+		"stale validation probe released",
+		failures
+	)
+
+
+func _verify_current_scene_adoption_and_probe_lifetime(failures: Array[String]) -> void:
+	var validator := FakeSceneCacheValidator.new()
+	var adapter := FakeResourceLoaderAdapter.new()
+	var finalizer: RefCounted = FINALIZER_SCRIPT.new(validator, adapter)
+	var current_scene := _packed_scene(true, true, failures)
+	var cache_state: RefCounted = CACHE_STATE_SCRIPT.new()
+	cache_state.call("remember_request", "world/current.wmo", "res://cache/current.tscn")
+	adapter.status_by_path["res://cache/current.tscn"] = ResourceLoader.THREAD_LOAD_LOADED
+	adapter.resource_by_path["res://cache/current.tscn"] = current_scene
+	finalizer.call("poll_terminal_requests", cache_state)
+	_expect_true(
+		cache_state.call("scene_for", "world/current.wmo") == current_scene,
+		"current PackedScene exact identity adopted",
+		failures
+	)
+	_expect_equal(
+		validator.validated_nodes.size(),
+		1,
+		"current scene instantiated exactly once",
+		failures
+	)
+	_expect_false(
+		is_instance_valid(validator.validated_nodes[0]),
+		"accepted validation probe released",
+		failures
+	)
+
+
+func _verify_validation_contract(failures: Array[String]) -> void:
+	var validator := FakeSceneCacheValidator.new()
+	var finalizer: RefCounted = FINALIZER_SCRIPT.new(validator)
+	var current_scene := _packed_scene(true, true, failures)
+	_expect_true(
+		bool(finalizer.call("is_scene_cache_current", current_scene)),
+		"current Node3D scene accepted",
+		failures
+	)
+	_expect_false(
+		bool(finalizer.call("is_scene_cache_current", null)),
+		"null scene rejected",
+		failures
+	)
+	var missing_validator_finalizer: RefCounted = FINALIZER_SCRIPT.new(null)
+	_expect_false(
+		bool(missing_validator_finalizer.call("is_scene_cache_current", current_scene)),
+		"missing validator rejects scene without instantiation",
+		failures
+	)
+
+
+func _verify_source_boundaries(failures: Array[String]) -> void:
+	var loader_source := _read_text(LOADER_PATH, failures)
+	var finalizer_source := _read_text(FINALIZER_PATH, failures)
+	var cache_source := _read_text(CACHE_STATE_PATH, failures)
+	_expect_true(
+		loader_source.contains("WMO_SCENE_RESOURCE_FINALIZER_SCRIPT.new("),
+		"loader composes scene finalizer",
+		failures
+	)
+	_expect_true(
+		loader_source.contains("_wmo_scene_resource_finalizer.poll_terminal_requests("),
+		"loader delegates scene terminal polling",
+		failures
+	)
+	_expect_false(
+		loader_source.contains("func _is_wmo_scene_cache_current("),
+		"loader releases PackedScene probe validation",
+		failures
+	)
+	for required_token in [
+		"ResourceLoader.load_threaded_get_status(resource_path)",
+		"ResourceLoader.load_threaded_get(resource_path)",
+		"scene.instantiate()",
+		"is_scene_cache_current",
+		"instance.free()",
+		"complete_request_with_scene",
+		"complete_request_as_missing",
+	]:
+		_expect_true(
+			finalizer_source.contains(required_token),
+			"finalizer owns %s" % required_token,
+			failures
+		)
+	_expect_false(
+		cache_source.contains("ResourceLoader."),
+		"cache state remains free of ResourceLoader",
+		failures
+	)
+
+
+func _verify_bounded_timing(failures: Array[String]) -> float:
+	var adapter := FakeResourceLoaderAdapter.new()
+	var finalizer: RefCounted = FINALIZER_SCRIPT.new(
+		FakeSceneCacheValidator.new(),
+		adapter
+	)
+	var started_microseconds := Time.get_ticks_usec()
+	for iteration in range(1000):
+		var cache_state: RefCounted = CACHE_STATE_SCRIPT.new()
+		var normalized_relative_path := "world/object_%d.wmo" % iteration
+		var cache_path := "res://cache/object_%d.tscn" % iteration
+		cache_state.call("remember_request", normalized_relative_path, cache_path)
+		adapter.status_by_path[cache_path] = ResourceLoader.THREAD_LOAD_FAILED
+		finalizer.call("poll_terminal_requests", cache_state)
+	var elapsed_milliseconds := float(Time.get_ticks_usec() - started_microseconds) / 1000.0
+	if elapsed_milliseconds >= 1000.0:
+		failures.append(
+			"1000 terminal polls took %.3fms (budget < 1000ms)" % elapsed_milliseconds
+		)
+	return elapsed_milliseconds
+
+
+func _packed_scene(
+	is_current: bool,
+	use_node_3d_root: bool,
+	failures: Array[String]
+) -> PackedScene:
+	var root: Node = Node3D.new() if use_node_3d_root else Node.new()
+	root.set_meta("current_wmo_cache", is_current)
+	var scene := PackedScene.new()
+	var pack_error := scene.pack(root)
+	root.free()
+	if pack_error != OK:
+		failures.append("cannot pack synthetic scene: %d" % pack_error)
+	return scene
+
+
+func _read_text(path: String, failures: Array[String]) -> String:
+	var file := FileAccess.open(path, FileAccess.READ)
+	if file == null:
+		failures.append("cannot read %s" % path)
+		return ""
+	var source := file.get_as_text()
+	file.close()
+	return source
+
+
+func _expect_true(value: bool, label: String, failures: Array[String]) -> void:
+	if not value:
+		failures.append(label)
+
+
+func _expect_false(value: bool, label: String, failures: Array[String]) -> void:
+	if value:
+		failures.append(label)
+
+
+func _expect_equal(actual: int, expected: int, label: String, failures: Array[String]) -> void:
+	if actual != expected:
+		failures.append("%s: expected %d, got %d" % [label, expected, actual])
+
+
+func _expect_string_array(
+	actual: Array,
+	expected: Array,
+	label: String,
+	failures: Array[String]
+) -> void:
+	if actual != expected:
+		failures.append("%s: expected %s, got %s" % [label, expected, actual])

src/tools/verify_wmo_scene_resource_finalizer.gd.uid

@@ -0,0 +1 @@
+uid://cs6gj0x3i3fg6

targets/03-renderer-facade.md

@@ -43,6 +43,7 @@ Runtime и Editor используют facade; planner/scheduler тестиру
   `M03-RND-WMO-RENDER-RESOURCE-CACHE-001`,
   `M03-RND-WMO-RENDER-RESOURCE-FINALIZER-001`,
   `M03-RND-WMO-SCENE-RESOURCE-CACHE-001`,
+  `M03-RND-WMO-SCENE-RESOURCE-FINALIZER-001`,
   `M03-RND-ADT-WATER-LOAD-PIPELINE-001`,
   `M03-RND-ADT-WATER-SCENE-FINALIZER-001`,
   `M03-RND-M2-RUNTIME-REBUILD-CLASSIFIER-001`,
@@ -142,6 +143,13 @@ Runtime и Editor используют facade; planner/scheduler тестиру
   Post-merge scene state (`40.113ms`), render state (`43.434ms`), shutdown,
   WMO queue/resolver, facade, internal-access `40`, `7/7` manifest,
   documentation and coordination gates remained green.
+  WMO scene Resource finalizer passed `cases=26 iterations=1000
+  elapsed_ms=4.186` with insertion-order status polling, non-terminal retention,
+  failed/null/wrong-type/non-Node3D/stale rejection, current exact PackedScene
+  adoption, accepted/rejected probe release and source boundaries. All 61
+  autonomous headless regressions passed; internal-access remained `30`,
+  documentation covered `48` module specifications, coordination retained `34`
+  historical expired-claim warnings and checkpoint dry-run kept all `7/7` plans.
   ADT water load pipeline state passed `cases=12 iterations=100
   elapsed_ms=86.170`; its initial direct no-`.godot` run passed (`94.576ms`),
   WMO caches/queue/planner/registry/resolver/material/shutdown and 18 adjacent
@@ -407,9 +415,10 @@ Runtime и Editor используют facade; planner/scheduler тестиру
   loader-owned request admission and shutdown drain order are unchanged.
   Cached WMO scene paths retain direct negative caching for missing/oversize/
   request-start failures, terminal missing state for load/validation failures and
-  the prior transient-reset versus final-shutdown lifetime. File-size limits,
-  `PackedScene` probe instantiation, WMOBuilder metadata validation and probe-node
-  destruction remain loader-owned before state accepts a scene.
+  the prior transient-reset versus final-shutdown lifetime. File-size limits and
+  request admission remain loader-owned; terminal I/O, `PackedScene` probe,
+  WMOBuilder metadata validation and probe release belong to the scene finalizer.
+  Rejected non-Node3D probes are now freed without changing fallback or output.
   ADT water requests retain FIFO order and tile-key deduplication; tile release
   removes pending requests without cancelling active work, task completion and
   result publication order are unchanged, and the mutex remains limited to the
@@ -487,8 +496,9 @@ Runtime и Editor используют facade; planner/scheduler тестиру
   typed WMO render build job/queue and loader enqueue/drain/cancel/clear adapters,
   lightweight WMO render Resource/missing/request state and loader lookup/request/
   reset adapters, plus terminal Resource polling/validation/publication finalizer,
-  cached WMO PackedScene/missing/request state and loader file-size/I/O/probe/
-  validation/reset adapters,
+  cached WMO PackedScene/missing/request state and loader file-size/admission/
+  reset adapters, plus terminal PackedScene polling/probe/lifetime/publication
+  finalizer,
   ADT water pending/task/result pipeline state and loader enqueue/start/publish/
   drain/release/reset/shutdown/metrics adapters,
   stateless ADT water scene finalizer and both loader build/attach adapters,
@@ -548,8 +558,8 @@ Runtime и Editor используют facade; planner/scheduler тестиру
   observers produce typed per-operation state, including native observation;
   animation and static Mesh terminal ResourceLoader drains are extracted, while
   action execution, material-prototype lookup and root cleanup remain loader-owned;
-  cached-scene WMO ResourceLoader/FileAccess I/O, live fallback and group
-  materialization remain in the loader; lightweight render terminal I/O is separated;
+  cached-scene WMO FileAccess/size admission, live fallback and group
+  materialization remain in the loader; both WMO terminal I/O paths are separated;
   asset-backed WMO placement/portal/material/leak/p95/p99 evidence remains pending;
   ADT water parsing and active worker interruption remain loader-owned;
   materialization is separated but remains synchronous main-thread work behind