core: Vertical Shafts on the shared Core cave planner (L139, v237; 15/16 seeds)

Shaft mode reuses PlanResolvedCavernNetworkV1 with a capped full-height cylinder primitive (shapeKind=1), ledges,
access bores and cross links; 11 VerticalShaftParams fields mapped. Basal law: arrival 2-3 to a walkable terminal
landing; drops/climbs stay reporting tiers. Seed 2 fails shell/seams at the 2-3 arrival mouth (3 variants tried,
stopped per AGENTS.md). Whole view faster than assembler/world in 8/8 cells; near-ready slower in 7/8.
Source/: VoxelForgeCoreAdapter.cpp.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016dhxM43dnWvUu2B5Ph1iG1

CURRENT-STATE.md

@@ -1,18 +1,18 @@
 # VoxelForge current state
 
-As of 2026-10-31. L131 is on `assembler/world` as `8107196`; this L132 worktree is on `wip/l132-dispatch-truth`, starting at `ebae71b`. Current-state claims below point to their code or measured report.
+As of 2026-11-01. L139 is being developed on `wip/l134-cave-planner`. Current-state claims below point to their code or measured report; L139's Vertical Shafts implementation has not passed composed acceptance and is not promoted.
 
 ## What ships today
 
-- **Core:** evaluator version **227**. Unreal's `AVoxelWorld::bUseVoxelForgeCore` is opt-in and defaults to `false`; the legacy generator remains the default runtime path. [Core version](Standalone/Core/include/VoxelForgeCore/VoxelForgeCore.h), [runtime switch](Source/VoxelForge/Public/VoxelWorld.h), [L130 report](Standalone/Research/WorldAssemblerM3/Linux130/REPORT.md).
-- **Verified owner4 generator dispatch (L132):** SW binds `SurfaceWorld-native` because the owner export contains a matching `SurfaceWorld.Heightfield2D` v2 plan. FI binds `compiled-analytic/FloatingIslands` because its `FloatingIslands.ClusterField` v0 layout has no matching native island plan. TN and VS bind `compiled-analytic/TunnelNetwork` and `compiled-analytic/VerticalShafts`; their legacy recipe IDs provide neither a `NativeCaves`/`NativeLattice` graph recipe nor native field capability. The L132 fast-tier report prints the binding and generated tile-center share at each owner strate. [Dispatch](Standalone/Core/src/ShapeWorldInternal.h), [adapter recipe checks](Standalone/Core/include/VoxelForgeCore/VoxelForgeCore.h), [L132 report](Standalone/Research/WorldAssemblerM3/Linux132/REPORT.md).
+- **Core:** evaluator version **237** in the L139 worktree. Unreal's `AVoxelWorld::bUseVoxelForgeCore` remains opt-in and defaults to `false`; the legacy generator remains the default runtime path. [Core version](Standalone/Core/include/VoxelForgeCore/VoxelForgeCore.h), [runtime switch](Source/VoxelForge/Public/VoxelWorld.h), [L139 report](Standalone/Research/WorldAssemblerM3/Linux139/REPORT.md).
+- **Verified owner4 generator dispatch:** S0 SurfaceWorld binds `SurfaceWorld-native`; S1 FloatingIslands remains `compiled-analytic/FloatingIslands`; S2 TunnelNetwork binds `Core.Caves.PrimitiveField`; and the L139 fast-tier report binds S3 VerticalShafts to `Core.Caves.PrimitiveField` / `Caves-native`. This proves dispatch, not the full shaft gate: the composed 16-seed sweep fails the passage-shell audit at seed 2. [Dispatch](Standalone/Core/src/ShapeWorldInternal.h), [adapter recipe checks](Standalone/Core/include/VoxelForgeCore/VoxelForgeCore.h), [L139 report](Standalone/Research/WorldAssemblerM3/Linux139/REPORT.md).
 - **Passages:** continuous smooth swept tubes with a continuous floor profile. L125 stamps conservative route slabs and outside sentinels into the tile cache; exact route geometry is still evaluated. All 21,425 route samples passed the open-air walk check; the nine-station floor probe's maximum root offset was 7.884 mm. L130 sets the shared influence reach to **1.0533 m** (0.75 m shell + 0.21 m relief + 0.50 m smooth-max support / 6 + 0.01 m margin), converted once from metres to Core voxels for the proof, feature, fallback, and off-grid bounds. [L125](Standalone/Research/WorldAssemblerM3/Linux125/REPORT.md), [L130](Standalone/Research/WorldAssemblerM3/Linux130/REPORT.md).
 - **Streaming:** arrival uses a bounded startup apply burst: `voxel.StreamingStartupApplyBoost=1` by default, up to 24 visible meshes or 14 ms per frame for at most 30 seconds, until the initial desired set and walkable ring are ready. `voxel.StreamingFarApplySupplement=1` is also default-on: after the normal visible apply cap, at most one far result applies when under half the apply-time budget; it is inactive during the startup burst. Dynamic near reserve defaults on; coarse-first remains off; the legacy pending-result cap defaults off. The far-apply lane is Unreal-only. [CVar source](Source/VoxelForge/Private/VoxelWorld.cpp), [L121 report](Standalone/Research/WorldAssemblerM3/Linux121/REPORT.md), [architecture](ARCHITECTURE.md).
-- **Determinism:** proven on Linux with Clang and GCC at W1/W8/W12. L131's unchanged-output comparison covers owner4's SW/FI/TN/VS views in 24 compiler/worker cases; the canonical owner4/owner2 recipe matrix also passes. Windows determinism is unverified. [L131 checks](Standalone/Research/WorldAssemblerM3/Linux131/REPORT.md), [v227 canonical hashes](Standalone/Tools/verify/baselines/owner-hash/canonical/).
+- **Determinism:** the L139 Vertical Shafts plan and field match across Clang/GCC at W1/W8/W12 (six cases); L131's unchanged-output comparison still covers the earlier owner4 SW/FI/TN/VS views and canonical owner4/owner2 recipe matrix. Windows determinism is unverified. [L139 checks](Standalone/Research/WorldAssemblerM3/Linux139/REPORT.md), [L131 checks](Standalone/Research/WorldAssemblerM3/Linux131/REPORT.md), [canonical hashes](Standalone/Tools/verify/baselines/owner-hash/canonical/).
 
 ## Current performance references
 
-Headless medians in seconds, five interleaved L80-style measurements per version in each cell. Near-ready means the complete LOD0–2 set; whole-view is the full requested view. Values below are the edited L131 binary; the paired pre-cleanup comparison is in the [L131 report](Standalone/Research/WorldAssemblerM3/Linux131/REPORT.md) and [timing summary](Saved/Linux/l131/timing/summary.json).
+Headless medians in seconds, five interleaved L80-style measurements per version in each cell. Near-ready means the complete LOD0–2 set; whole-view is the full requested view. Values below are the latest complete L131 measurements; L139 characterization is in the [L139 report](Standalone/Research/WorldAssemblerM3/Linux139/REPORT.md) and [timing summary](Saved/Linux/l139/timing/summary.json). The paired pre-cleanup comparison is in the [L131 report](Standalone/Research/WorldAssemblerM3/Linux131/REPORT.md) and [timing summary](Saved/Linux/l131/timing/summary.json).
 
 | Stratum | Near-ready W8 / W12 | Whole-view W8 / W12 |
 |---|---:|---:|
@@ -28,17 +28,18 @@ The latest recorded Linux Unreal start-to-LOD0–2 values are L127's one run per
 ## Open gaps
 
 - Multiplayer world lifecycle is unfinished: seed/layout replication, authoritative modification RPCs, and serialized diff replay for late join are still open. See [ARCHITECTURE §9.5 and §9.7](ARCHITECTURE.md).
+- L139 Vertical Shafts is not accepted: the composed audit's seed 2 fails the incoming passage shell after three geometry variants failed that same gate. L80 characterization and the Linux host build passed, but neither changes the composed acceptance result. See [L139 report](Standalone/Research/WorldAssemblerM3/Linux139/REPORT.md).
 - Determinism has not been verified on Windows. Linux Clang/GCC agreement does not establish MSVC agreement.
 - NullRHI measures residency and apply timing, not the first presented pixel or rendered enclosure. L127 also found four low-contrast views among 23 otherwise verified captures. [L121](Standalone/Research/WorldAssemblerM3/Linux121/REPORT.md), [L127](Standalone/Research/WorldAssemblerM3/Linux127/REPORT.md).
 - UE startup/movement numbers above predate L130's v227 reach change; there is no L130/L131 UE movement comparison.
 
 ## How to verify
 
-- Build standalone Clang or GCC with [`Standalone/BuildLinux.sh`](Standalone/BuildLinux.sh), for example `bash Standalone/BuildLinux.sh --compiler=clang++-19 --variant=l132-clang --fp-contract=off --jobs=4`. The script pins CPUs 0–11 and applies `prlimit --as=6442450944` itself.
-- Fast tier: `python3 Standalone/Tools/verify/verify.py fast --out Saved/Linux/l132 --overall-timeout 1740`. It includes the L132 four-pose owner density-dispatch report; per-run logs and the summary stay under `Saved/Linux/l132`.
-- Canonical output baselines are the v227 files in `Standalone/Tools/verify/baselines/owner-hash/canonical/`. L131 also provides reproducible pre-cleanup identity matrices for owner4 tile hashes and owner4/owner2 canonical hashes under `Standalone/Research/WorldAssemblerM3/Linux131/`.
-- Timing follows L80: quiet machine, no overlapping build, one warm-up per version, five interleaved runs per stratum and worker count, W8/W12. Each headless run uses `taskset -c 0-11`, `prlimit --as=6442450944`, and a 1,740 s timeout. See [`RunL131Timing.py`](Standalone/Research/WorldAssemblerM3/Linux131/RunL131Timing.py).
-- Linux host build: `/home/jahni/UnrealEngine/Engine/Build/BatchFiles/Linux/Build.sh VFHostEditor Linux Development -Project=/home/jahni/VFHost/VFHost.uproject -NoUBA -MaxParallelActions=4 -Log=/home/jahni/VoxelM/Plugins/VoxelForge/Saved/Linux/l131/ubt.log`. Run Unreal without `prlimit`.
+- Build standalone Clang or GCC with [`Standalone/BuildLinux.sh`](Standalone/BuildLinux.sh), for example `bash Standalone/BuildLinux.sh --compiler=clang++-19 --variant=l139-clang --fp-contract=off --jobs=4`. The script pins CPUs 0–11 and applies `prlimit --as=6442450944` itself.
+- Fast tier: `python3 Standalone/Tools/verify/verify.py fast --out Saved/Linux/l139 --overall-timeout 1740`. It includes the four-strate owner density-dispatch report; per-run logs and the summary stay under `Saved/Linux/l139`.
+- The L139 v237 canonical Surface World and Floating Islands owner-hash baselines are in `Standalone/Tools/verify/baselines/owner-hash/canonical/`; both values match v236. L131 also provides reproducible pre-cleanup identity matrices for owner4 tile hashes and owner4/owner2 canonical hashes under `Standalone/Research/WorldAssemblerM3/Linux131/`.
+- Timing follows L80: quiet machine, no overlapping build, one warm-up per version, five interleaved runs per stratum and worker count, W8/W12. The L139 run recorded the L137 A/A noise floor of ±1%. Each headless run uses `taskset -c 0-11`, `prlimit --as=6442450944`, and a 1,740 s timeout. See [`RunL139FinalTiming.py`](Standalone/Research/WorldAssemblerM3/Linux139/RunL139FinalTiming.py).
+- Linux host build: `/home/jahni/UnrealEngine/Engine/Build/BatchFiles/Linux/Build.sh VFHostEditor Linux Development -Project=/home/jahni/VFHost/VFHost.uproject -NoUBA -MaxParallelActions=4 -Log=/home/jahni/VoxelM/Plugins/VoxelForge/Saved/Linux/l139/ubt.log`. Run Unreal without `prlimit`.
 
 ## Closed experiments