refactor(core): boundary policy as resolved capabilities, not generator-name tests (L42, step 6); R9

ResolvedLayoutSnapshotV3::finalize maps each strate's generator and interface once into capability
records (FI gradient air-gap, surface/FI landing support, passage-anchor columns, SW-to-TN floor);
ApplyResolvedStrateBoundaryBand and passage composition read those instead of generator kinds. Derived
records stay out of canonical JSON, so layout identity is unchanged. Owner hashes identical to L41;
fast/medium/full PASS on clean Clang and GCC builds; cost within noise.
Research R9 (read-only): player-visible roadmap refresh.

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

ARCHITECTURE.md

@@ -2215,6 +2215,27 @@ per-sample dispatch path; this migration adds no manager lookup to it. The Unrea
 cannot be compiled in this Linux workspace, so their small source changes still need the Windows
 Unreal build before integration.
 
+### 8.52 Resolved boundary and landing capabilities — World Assembler M3 L42
+
+`ResolvedLayoutSnapshotV3::finalize` materializes runtime capability records from the immutable
+strate/interface fields before sampling begins. The upper interface records whether its Gradient FI
+bedrock air gap remains open and whether a SurfaceWorld-to-TunnelNetwork passage gets the special
+landing support profile. Per-strate passage records carry the existing SurfaceWorld landing profile,
+FloatingIslands route-support behavior, and passage-anchor column center policy. Shared boundary and
+passage composition reads these records; it no longer compares generator-kind strings.
+
+The records are deterministic derivatives of `generator_kind`, `transition_mode`, and the resolved
+adjacent strate, and are omitted from canonical JSON. Those source fields remain in the hashed layout,
+so owner layout IDs and density hashes retain their L41 identity. The upper strate still controls
+Hard/Gradient/Interleaved evaluation; each strate still composes ceiling, content, then breakable
+bedrock. L29 transition samples and the passage-mouth fade arithmetic are unchanged.
+
+`BindResolvedStratumFields` still tests the resolved generator kind once to bind the concrete
+SurfaceWorld, FloatingIslands, or legacy evaluator. Passage planning in `ResolvedLayoutInternal.h`
+also retains generator-specific anchor and default-mouth placement rules; those are outside the
+shared composition boundary policy. No Unreal source changed. See the L42 report for hashes, tier
+results and paired cost measurements.
+
 ## 9. Multiplayer model (listen-server first, dedicated-friendly)
 
 > **Status: transport is DESIGN ONLY — nothing is networked in-tree yet** (no `Replicated`/`HasAuthority`/RPCs; a

CODEMAP.md

@@ -1284,6 +1284,17 @@ ARCHITECTURE §8.47 and
 Hash parity is unchanged from L37/L39; see ARCHITECTURE §8.50 and
 [`Standalone/Research/WorldAssemblerM3/Linux40/REPORT.md`](Standalone/Research/WorldAssemblerM3/Linux40/REPORT.md).
 
+### 3.34 Resolved boundary and landing capabilities — World Assembler M3 L42
+
+| Symbol | Canonical file | Role |
+|---|---|---|
+| `ResolvedLayoutStratePassageCapabilitiesV1`, `ResolvedLayoutInterfaceCapabilitiesV1` | `Standalone/Core/include/VoxelForgeCore/VoxelForgeCore.h` | Runtime-only resolved records for surface/island landing, passage-column anchoring, the FI Gradient air gap, and SW-to-TunnelNetwork support. They are derived during layout finalization from fields already included in the canonical layout identity. |
+| `ResolvedLayoutSnapshotV3::finalize` | `Standalone/Core/src/ResolvedLayoutInternal.h` | Resolves those capabilities once before sampling; canonical JSON and stable layout IDs stay unchanged. |
+| `FStandaloneShapeWorld::ApplyResolvedStrateBoundaryBand`, `ApplyResolvedStratePassageCarves`, `BuildPassageVoidCrossingPlan`, `PassageBridgeSignedDistance` | `Standalone/Core/src/ShapeWorldInternal.h` | Consume resolved capability records. Generator-kind selection remains only in `BindResolvedStratumFields`, where it binds the concrete evaluator once. |
+
+Owner hashes match L41; see ARCHITECTURE §8.52 and
+[`Standalone/Research/WorldAssemblerM3/Linux42/REPORT.md`](Standalone/Research/WorldAssemblerM3/Linux42/REPORT.md).
+
 ## 4. The density pipeline (most-edited hot path)
 
 ### 4.1 `GetDensityWithParams` (TunnelNetwork) — VoxelGenerator.cpp:3749

Standalone/Core/include/VoxelForgeCore/VoxelForgeCore.h

@@ -729,6 +729,22 @@ namespace VoxelForgeCore
         std::int64_t solidDensityQ16 = 1ll << 16;
     };
 
+    // Runtime policy resolved once from the director's immutable strate/interface
+    // description. These derived capabilities are deliberately omitted from canonical
+    // JSON: their source fields are already hashed and the records preserve that identity.
+    struct ResolvedLayoutStratePassageCapabilitiesV1
+    {
+        bool hasSurfaceLanding = false;
+        bool hasFloatingIslandLanding = false;
+        bool usePassageAnchorForColumns = false;
+    };
+
+    struct ResolvedLayoutInterfaceCapabilitiesV1
+    {
+        bool preserveUpperBedrockAirGap = false;
+        bool surfaceToTunnelLandingSupport = false;
+    };
+
     struct ResolvedLayoutStratumV2
     {
         std::string stableId;
@@ -758,6 +774,8 @@ namespace VoxelForgeCore
         std::int64_t managerChunkWidthMicrometres = 0;
         std::int64_t dispatchChunkWidthMicrometres = 0;
         std::vector<ResolvedLayoutAnchorV2> anchors;
+        ResolvedLayoutStratePassageCapabilitiesV1 passageCapabilities;
+        ResolvedLayoutInterfaceCapabilitiesV1 lowerInterfaceCapabilities;
     };
 
     /** Per-column resolved bands for one adjacent bedrock/ceiling interface.

Standalone/Core/src/ResolvedLayoutInternal.h

@@ -409,6 +409,26 @@ bool ResolvedLayoutSnapshotV3::finalize(std::string& error)
         if(x.bedrock.kind.empty())x.bedrock.kind="bedrock";
         if(x.interiorTopMicrometres<=x.interiorBottomMicrometres||x.voxelSizeMicrometres==0)
         {error="resolved layout contains an invalid interior interval or voxel size";return false;}
+
+        // Materialize generator-specific composition policy at layout resolution. The
+        // sampling/composition path consumes these capabilities without examining names.
+        x.passageCapabilities={};
+        x.lowerInterfaceCapabilities={};
+        if(x.generatorKind=="SurfaceWorld")
+            x.passageCapabilities.hasSurfaceLanding=true;
+        else if(x.generatorKind=="FloatingIslands")
+        {
+            x.passageCapabilities.hasFloatingIslandLanding=true;
+            x.passageCapabilities.usePassageAnchorForColumns=true;
+        }
+        if(i+1<strates.size())
+        {
+            const auto& lower=strates[i+1];
+            x.lowerInterfaceCapabilities.preserveUpperBedrockAirGap=
+                x.generatorKind=="FloatingIslands"&&x.transitionMode=="Gradient";
+            x.lowerInterfaceCapabilities.surfaceToTunnelLandingSupport=
+                x.generatorKind=="SurfaceWorld"&&lower.generatorKind=="TunnelNetwork";
+        }
     }
     const std::int64_t playerCenterAboveFloorQ=static_cast<std::int64_t>(std::llround(
         1.13*WorldAssemblySubvoxelsPerVoxel*1000000.0/coreVoxelSizeMicrometres));

Standalone/Core/src/ShapeWorldInternal.h

@@ -807,8 +807,7 @@ public:
                                 solidTop-zMicrometres));
                     const std::int64_t seam=transitionUpper->bedrock.bottomMicrometres;
                     const bool floatingIslandAirGap=
-                        transitionUpper->generatorKind=="FloatingIslands"
-                        &&transitionUpper->transitionMode=="Gradient"
+                        transitionUpper->lowerInterfaceCapabilities.preserveUpperBedrockAirGap
                         &&bands.upperBedrockTopMicrometres<seam
                         &&zMicrometres>=bands.upperBedrockTopMicrometres
                         &&zMicrometres<seam;
@@ -876,8 +875,8 @@ public:
                     :-static_cast<double>(std::min(zMicrometres-solidBottom,
                         solidTop-zMicrometres));
             const std::int64_t seam=upper->bedrock.bottomMicrometres;
-            const bool floatingIslandAirGap=upper->generatorKind=="FloatingIslands"
-                &&upper->transitionMode=="Gradient"
+            const bool floatingIslandAirGap=
+                upper->lowerInterfaceCapabilities.preserveUpperBedrockAirGap
                 &&resolvedBands.upperBedrockTopMicrometres<seam
                 &&zMicrometres>=resolvedBands.upperBedrockTopMicrometres
                 &&zMicrometres<seam;
@@ -1015,10 +1014,9 @@ public:
             const auto* supportUpper=supportStratum(passage.upperStrateIndex);
             const auto* supportLower=supportStratum(passage.lowerStrateIndex);
             const bool floatingIslandPassage=supportUpper
-                &&supportUpper->generatorKind=="FloatingIslands";
+                &&supportUpper->passageCapabilities.hasFloatingIslandLanding;
             const bool surfaceToTunnelSupport=supportUpper&&supportLower
-                &&supportUpper->generatorKind=="SurfaceWorld"
-                &&supportLower->generatorKind=="TunnelNetwork";
+                &&supportUpper->lowerInterfaceCapabilities.surfaceToTunnelLandingSupport;
             const double firstFloorQ=passage.controlPoints.front().positionSubvoxels[2]
                 -passage.controlPoints.front().radiusSubvoxels+playerCenterAboveFloorQ;
             const double lastFloorQ=passage.controlPoints.back().positionSubvoxels[2]
@@ -3466,7 +3464,7 @@ private:
                         ResolvedLayout->strates.end(),[strate](const auto& value)
                             {return value.strateIndex==strate;});
                     surfaceWorldUpper=upper!=ResolvedLayout->strates.end()
-                        &&upper->generatorKind=="SurfaceWorld";
+                        &&upper->passageCapabilities.hasSurfaceLanding;
                 }
                 const std::size_t shortSpanPadding=!crossing.needsColumn
                     &&surfaceWorldUpper&&!flags.empty()?2:0;
@@ -3737,7 +3735,7 @@ private:
             ResolvedLayout->strates.end(),[&passage](const auto& value)
                 {return value.strateIndex==passage.upperStrateIndex;});
         const bool surfaceWorldUpper=upperStratum!=ResolvedLayout->strates.end()
-            &&upperStratum->generatorKind=="SurfaceWorld";
+            &&upperStratum->passageCapabilities.hasSurfaceLanding;
         const double ax=static_cast<double>(a.positionSubvoxels[0]);
         const double ay=static_cast<double>(a.positionSubvoxels[1]);
         const double dx=static_cast<double>(b.positionSubvoxels[0])-ax;
@@ -3949,7 +3947,7 @@ private:
                 ResolvedLayout->strates.end(),[&passage](const auto& value)
                     {return value.strateIndex==passage.upperStrateIndex;});
             const bool surfaceWorldUpper=upperStratum!=ResolvedLayout->strates.end()
-                &&upperStratum->generatorKind=="SurfaceWorld";
+                &&upperStratum->passageCapabilities.hasSurfaceLanding;
             if(passage.controlPoints.size()<2)continue;
             std::vector<FPathSample> samples;
             samples.reserve(passage.controlPoints.size()*2);
@@ -4029,7 +4027,7 @@ private:
                         ?static_cast<std::int64_t>(std::llround(static_cast<double>(sumY)/centerSamples)):0;
                     for(const auto& stratum:ResolvedLayout->strates)
                         if(stratum.strateIndex==passage.upperStrateIndex
-                            &&stratum.generatorKind=="FloatingIslands")
+                            &&stratum.passageCapabilities.usePassageAnchorForColumns)
                             for(const auto& anchor:stratum.anchors)
                                 if(anchor.kind=="passage_anchor"&&anchor.values.size()>=2)
                                 {

Standalone/Research/WorldAssemblerM3/Linux42/REPORT.md

@@ -0,0 +1,56 @@
+# Linux 42 — resolved boundary capabilities
+
+Migration step 6 is a Core-only pure refactor. No Unreal source changed.
+
+## Policy records
+
+`ResolvedLayoutSnapshotV3::finalize` resolves the existing generator and interface fields once into
+runtime capabilities. `ApplyResolvedStrateBoundaryBand` reads
+`lowerInterfaceCapabilities.preserveUpperBedrockAirGap` for the FI Gradient gap. Passage composition
+reads `passageCapabilities.hasSurfaceLanding` for the SW landing/bridge profile and crossing extent,
+`hasFloatingIslandLanding` for the FI route support, and `usePassageAnchorForColumns` for its fixed
+passage-column center. `surfaceToTunnelLandingSupport` records the SW-to-TunnelNetwork floor profile.
+The derived records are omitted from canonical JSON, so the resolved layout identity is unchanged.
+
+`BindResolvedStratumFields` still checks `generatorKind` once to bind SurfaceWorld, FloatingIslands,
+or legacy evaluation. `finalize` maps that resolved kind to capabilities once. `PlanResolvedLayoutPassagesV1`
+still names SurfaceWorld/FloatingIslands for existing default mouth and anchor placement; that passage
+planning policy remains outside this boundary-composition step.
+
+Ceiling → content → breakable bedrock order remains unchanged for every strate. The upper strate still
+controls Hard/Gradient/Interleaved. L29 transition sample arithmetic and the passage-mouth fade are
+unchanged.
+
+## Hashes and cost
+
+Source stamp: `a3a65e58a670399d9458aa2a9c99eddd7b541671f919a293f5b4086878e9eb78`.
+
+FI layout ID `b7a7d9ecc48d8f26`; SW layout ID `8a52e84c26ed92d2`. All four 12-record FI/SW worker-1
+and worker-12 hash signatures match L41 exactly: FI
+`9820f4f38b189b3f7263810e7b3ff62aa502b21f476ffcfdbc7761a65cb07d58`; SW
+`a1e9268a4bbcc77d2a1ac54095df6851a70bab65c43ae50b332ed75132617834`. Worker-1 and worker-12 match
+each other for both recipes.
+
+Full-tier five-pair whole-view-ready cost versus `HEAD` `1abee917215cd6f971e39dd3158cecf4c9992fbe`:
+FI median 18.164 s → 18.189 s (**+0.14%**); SW 1.888 s → 1.877 s (**−0.58%**). No measured cost
+regression.
+
+## Verification
+
+| Tier | Result |
+|---|---|
+| Fast | PASS, 163.2 s; owner hashes, worker parity, and ring gates pass. |
+| Medium | PASS, 469.9 s; transition modes, hole controls, route proofs, owner passage matrix, ring and capture gates pass. |
+| Full | PASS, 1,637.0 s; 107 runs and 539 checks, including Clang/GCC, 30-cell determinism and paired cost. |
+
+Full used clean Clang 19 and GCC 14 builds from `Saved/Linux/l42/final-clean-build`, `-j12`, FP
+contraction off. The final source stamp was embedded in both binaries. All processes used CPUs 0–11,
+the 6 GiB address-space limit, and a 30-minute process timeout.
+
+The first fast invocation stopped before running checks because the L42 binary had not yet been built;
+fast passed after the build. The mislabelled-owner and all-black capture negative controls are expected
+rejections and passed their verifier checks. No tier had an unexpected failed run.
+
+## Orchestrator review (Claude)
+
+Accepted. The current tree stamp equals both L42 binaries (`a3a65e58…`), so the fast/medium/full evidence is from this exact source. Owner hashes are identical to L41. Passage planning (`PlanResolvedLayoutPassagesV1`) still names generators; that is a later step.

Standalone/Research/WorldAssemblerM3/Research9/REPORT.md

@@ -0,0 +1,64 @@
+I couldn’t write to the requested path because the standing instruction says read-only and “Don’t touch the tree.” Here is the report text for `Standalone/Research/WorldAssemblerM3/Research9/REPORT.md`. No scripts, builds, tests, probes, or binaries were run.
+
+# Research R9 — What should the player see next?
+
+## Done, partly done, obsolete
+
+| Area | Status | Readout |
+|---|---|---|
+| Fable performance work and preview tools | **Done**, with one caveat | Instrumentation, most Tier 1–2 optimizations, preview, and determinism tools are marked complete. Tile classification was later turned off on the game path; don’t assume every “done” item is still active there. [fable-idea.md](</home/jahni/VoxelM/Plugins/VoxelForge/fable-idea.md:35>) |
+| Biomes, materials, decorations | **Done in the legacy Unreal path; partly carried into Core** | F5/F6/F16 are marked done. The Core integration documents still identify gaps in water presentation, biome material palette, decoration, and atmosphere. [fable-idea.md](</home/jahni/VoxelM/Plugins/VoxelForge/fable-idea.md:118>) · [ARCHITECTURE.md §8.19](</home/jahni/VoxelM/Plugins/VoxelForge/ARCHITECTURE.md:1176>) |
+| POIs, water, cave materials, terrain ops | **Partly done** | F7 has deterministic landmark placement, passage-mouth anchors, conditions, and companions; SDF carve/fill stamps remain open. The legacy water plane is strata-wide and visual; swimming is open, and Core does not yet present native water. F17’s cap/ground split exists, but cave material identity is not a general semantic channel. F20’s surface phases 1–2 are built; spikes/holes remain open. [fable-idea.md](</home/jahni/VoxelM/Plugins/VoxelForge/fable-idea.md:127>) · [ARCHITECTURE.md §8.5](</home/jahni/VoxelM/Plugins/VoxelForge/ARCHITECTURE.md:267>) |
+| Save/load, ore, audio, HUD, weather, carve UX, transport gameplay, ambient life | **Open or parked** | The Core has edit and layout foundations, but these player-facing systems are not delivered by them. [fable-idea.md](</home/jahni/VoxelM/Plugins/VoxelForge/fable-idea.md:116>) · [fable-idea.md §Experience polish](</home/jahni/VoxelM/Plugins/VoxelForge/fable-idea.md:244>) |
+| F18 far-field sheets | **Obsolete** | The owner removed the sheet path in the September cleanup. F20’s proposed `SurfaceOps[]` data shape was also replaced by fields on `FSurfaceGenerationParams`. [fable-idea.md](</home/jahni/VoxelM/Plugins/VoxelForge/fable-idea.md:138>) |
+| Strata, passages, transitions | **Partly done** | The Core resolves physical strata bounds, boundary bands, inter-strate passages, walkable landings, and Hard/Gradient/Interleaved boundary transitions. These do not make every composed season satisfy the entrance-to-exit law. The transition blends boundary bands; it does not blend unrelated generator fields. [ARCHITECTURE.md §8.41](</home/jahni/VoxelM/Plugins/VoxelForge/ARCHITECTURE.md:1928>) · [ARCHITECTURE.md §8.46](</home/jahni/VoxelM/Plugins/VoxelForge/ARCHITECTURE.md:2056>) |
+| Lateral within-strate regions | **Implemented, gated** | The region blend exists, but its passage-law audit is still 4/16; region-zero controls are also 4/16. It is not ready to promote as the route to tunnel/chamber mixing. [ARCHITECTURE.md §8.1a](</home/jahni/VoxelM/Plugins/VoxelForge/ARCHITECTURE.md:91>) |
+| Composer and GDD game | **Partly done / mostly design** | Candidate rolling, measurement, selection, preview, and promotion exist. The season artifact does not yet carry generated passages or the full visual/content payload; tagged draws for materials, creatures, and audio remain open. City, economy, combat, death, housing, and multiplayer are game design, not delivered VoxelForge features. [COMPOSER-NOTES.md §4](</home/jahni/VoxelM/Plugins/VoxelForge/COMPOSER-NOTES.md:1125>) · [COMPOSER-NOTES.md §7](</home/jahni/VoxelM/Plugins/VoxelForge/COMPOSER-NOTES.md:1407>) · [GDD.md](</home/jahni/VoxelM/Plugins/VoxelForge/GDD.md:18>) |
+
+The GDD’s geometry contract—bounded strata, passages, and transitions—has a substantial implementation base. The long-term loop, guaranteed resource progression, boss content, named discoveries, seasonal play, and the opening remain design goals, not a playable game loop. The first strate is explicitly meant to be hand-built and story-significant. [GDD.md §§6–8](</home/jahni/VoxelM/Plugins/VoxelForge/GDD.md:104>) · [GDD.md §§9–15](</home/jahni/VoxelM/Plugins/VoxelForge/GDD.md:197>)
+
+## Ranked next player-visible features
+
+Ranked for payoff against delivery cost and risk. Costs and risks are qualitative.
+
+1. **Landmarks and set-pieces — very high payoff; medium cost/risk.** **Core:** add deterministic bounded SDF stamp records for carved or filled structures, with stable IDs and passage-safe placement. **Unreal:** connect those records to the existing landmark streamer and mesh/actor paths. **Owner:** author a few shrine, ruin, crystal-garden, and boss-entry kits with tags and loot hooks. Placement exists; stamps do not. [fable-idea.md F7](</home/jahni/VoxelM/Plugins/VoxelForge/fable-idea.md:127>)
+
+2. **Cave lighting identity — high payoff; small-to-medium cost, low-to-medium risk.** **Core:** no field change for lights attached to existing ceiling or landmark placements; a real skylight opening needs a bounded geometry feature. **Unreal:** add cave atmosphere profiles, emissive HISM clusters, and a few local lights or artificial light wells. **Owner:** author gem-star, bioluminescent, and shaft-light kits plus color/exposure profiles. The existing atmosphere manager is strate/biome-oriented, but this needs an enclosed-cave profile.
+
+3. **Depth, place names, and an explored-chunks map — high payoff; small cost/risk.** **Core:** expose resolved strate IDs, depth, passage endpoints, and stable landmark IDs; no density change. **Unreal:** UMG depth/name cards, route cues, and a lightweight explored-area map. **Owner:** provide name pools, map symbols, and discovery rules. This also improves orientation before a full quest system exists. [fable-idea.md F11](</home/jahni/VoxelM/Plugins/VoxelForge/fable-idea.md:247>) · [GDD.md §14](</home/jahni/VoxelM/Plugins/VoxelForge/GDD.md:383>)
+
+4. **Ore veins and dig rewards — very high payoff; medium cost/risk.** **Core:** add a deterministic resource/material channel or bounded vein records, separate from rock density. **Unreal:** show vein identity through mesh attributes/materials and award resources through the carve path. **Owner:** author ore looks, rarity/yield, depth eligibility, and guarantees for recipe-critical materials. This directly supports the GDD’s gather-and-return loop. [fable-idea.md F8](</home/jahni/VoxelM/Plugins/VoxelForge/fable-idea.md:132>) · [GDD.md §9](</home/jahni/VoxelM/Plugins/VoxelForge/GDD.md:197>)
+
+5. **Mixed-scale caves: tunnels opening into chambers — very high payoff; large cost/high risk.** **Core:** build a composite cavern-network recipe whose room graph and bounds are resolved before sampling; keep the strata’s entrance/exit and boundary posts shared. Prefer one evaluator with internal room/tunnel structure over promoting the currently gated lateral blend. **Unreal:** expose the recipe and a walkable preview, then support its materials, lighting, and collision. **Owner:** author chamber/tunnel motifs, size ranges, and rules for wide arenas versus narrow connectors.
+
+6. **Local streams and pools — high payoff; large cost/high risk.** **Core:** add a bounded watercourse path, pool surface, and liquid-query output. Existing Core fields include water channels and a per-stratum water surface, but that is not a cave stream or pool. **Unreal:** render water surfaces, add swim/collision volumes, underwater post-process, sound, and effects. **Owner:** author water materials, flow/pool profiles, sound, and themed edge content. Start with deterministic static flow and local pools; leave fluid simulation for later. [VoxelForgeCore.h](</home/jahni/VoxelM/Plugins/VoxelForge/Standalone/Core/include/VoxelForgeCore/VoxelForgeCore.h:375>) · [ARCHITECTURE.md §8.5](</home/jahni/VoxelM/Plugins/VoxelForge/ARCHITECTURE.md:420>)
+
+7. **Save/load for edits and homes — very high payoff; large cost/high risk.** **Core:** persist edits against the resolved world identity and generation version. **Unreal:** serialize diffs and house snapshots, with the game’s authority deciding what survives a season. **Owner:** settle the persistence boundary: GDD says housing survives wipes, while underground building is still open. [fable-idea.md F4](</home/jahni/VoxelM/Plugins/VoxelForge/fable-idea.md:116>) · [GDD.md §§11, 13](</home/jahni/VoxelM/Plugins/VoxelForge/GDD.md:285>)
+
+8. **Full tagged-content composer — strategic payoff is very high; extra-large cost/very high risk.** **Core/build box:** expand from density recipes to reviewed passage, feature, and content records; preserve deterministic IDs and selection evidence. **Unreal:** author tags, import reviewed manifests, and spawn the selected content at runtime. **Owner:** tag raw meshes, materials, sounds, creatures, and structures with overlapping themes and veto composed seasons. This should follow a small authored content library and a proven mixed-cave recipe; otherwise it composes an empty world. [COMPOSER-NOTES.md §1](</home/jahni/VoxelM/Plugins/VoxelForge/COMPOSER-NOTES.md:18>) · [COMPOSER-NOTES.md §7](</home/jahni/VoxelM/Plugins/VoxelForge/COMPOSER-NOTES.md:1477>)
+
+## Fit with Research6 §2 contract
+
+R6’s scalar field contract is a good fit for **a new single composite cave generator**, provided its complete plan is immutable and bound before tile jobs. The contract still needs its broader migration: R6 identifies remaining dispatch, unit, policy, passage, and mesher leaks. Recent Core binding/layout work advances that migration, but does not make every generator a native field yet. [Research6/REPORT.md §2](</home/jahni/VoxelM/Plugins/VoxelForge/Standalone/Research/WorldAssemblerM3/Research6/REPORT.md:22>) · [ARCHITECTURE.md §8.50](</home/jahni/VoxelM/Plugins/VoxelForge/ARCHITECTURE.md:2165>)
+
+- **Fits without a generator/mesher extension:** Unreal-only lighting, actor/HISM landmarks, HUD/map, and edit persistence. A visual landmark can reuse the current content path.
+- **Fits the evaluator contract, but needs data/implementation:** A composite cave generator can return one `densityAt` field. Its room graph and feature bounds must be in the resolved snapshot before sampling. Static SDF stamps need bounded feature records and conservative interval behavior.
+- **Needs the contract extended:** Water needs a liquid surface/query payload separate from rock density. Visible ores need a material/resource semantic channel. A physically open skylight needs geometry and a light-opening descriptor.
+- **Composer scope:** Offline composition can keep the runtime evaluator contract; the resolved season manifest must grow to carry passages and selected content/feature records. The current six-slot artifact is not the complete world manifest.
+
+## Prior art: design principles
+
+1. **Give the player a readable route rhythm.** Deep Rock Galactic connects curated rooms with narrow, winding tunnels; designers shape rooms to funnel players naturally toward exits and balance traversal with dramatic spaces. Spelunky 2 pairs a guaranteed safe route with optional layers and alternate routes. [DRG developer cave-generation article](https://store.steampowered.com/news/posts/?appgroupname=Deep+Rock+Galactic&appids=548430&enddate=1729500950&feed=steam_community_announcements), [Spelunky 2 interview](https://blog.playstation.com/archive/2018/08/29/first-look-at-spelunky-2-gameplay-plus-new-derek-yu-interview/)
+
+2. **Alternate scale and local hazards.** Minecraft deliberately mixes huge “cheese” chambers, long “spaghetti” caves, narrow “noodle” passages, and local-level aquifers. This supports alternating tunnels, chambers, and occasional pools instead of filling a whole strate with water. [Minecraft Caves & Cliffs features](https://www.minecraft.net/de-de/article/caves---cliffs--part-ii-out-today-bedrock)
+
+3. **Curate the structure; randomize inside it.** DRG uses designed room templates with internal randomizers. Astroneer uses artist-designed biomes and constrains randomization; Enshrouded’s world team describes handcrafted locations and procedural tools as support for meaningful discovery and lore. [DRG](https://store.steampowered.com/news/posts/?appgroupname=Deep+Rock+Galactic&appids=548430&enddate=1729500950&feed=steam_community_announcements), [Astroneer developer interview](https://www.unrealengine.com/developer-interviews/inspired-space-inside-the-development-of-astroneer?lang=en-US), [Keen Games on Enshrouded’s world](https://www.linkedin.com/posts/keen-games_creating-the-world-of-enshrouded-activity-7140369674289995777-SJ2t)
+
+4. **Use lighting and vistas as orientation, not decoration alone.** DRG varies cave geometry, fog, and lighting by biome. Enshrouded’s 1.0 notes emphasize distinct biome lighting and atmosphere and improved distant vistas; No Man’s Sky’s update notes call out more navigable caves and underground ruins. [DRG](https://store.steampowered.com/news/posts/?appgroupname=Deep+Rock+Galactic&appids=548430&enddate=1729500950&feed=steam_community_announcements), [Enshrouded 1.0 notes](https://kg-www.keengames.com/en-US/news/release-trailer-changelog-everything-you-need-to-wait-for-tomorrow), [No Man’s Sky](https://www.nomanssky.com/en/next-update/)
+
+5. **Make exploration teachable and reactive.** Spelunky 2 preserves a safe route while adding layers and liquids; Noita’s developers describe physical materials as a source of emergent encounters; Valheim’s official overview emphasizes biome-specific challenges, resources, secrets, and caves as optional exploration. [Spelunky 2](https://blog.playstation.com/archive/2018/08/29/first-look-at-spelunky-2-gameplay-plus-new-derek-yu-interview/), [Noita GDC talk](https://www.gdcvault.com/play/1025695/Exploring-the-), [Valheim FAQ](https://valheim.com/faq/)
+
+## Owner questions
+
+1. Should the first slice prioritize a **lit landmark chamber** or a **gather-and-return loop** with ore and persistence?
+2. Is a static, bounded stream and pool acceptable for the water MVP, with simulation deferred?

Standalone/Tools/verify/verify.py

@@ -23,7 +23,7 @@ ROOT = Path(__file__).resolve().parents[3]
 VERIFY_DIR = ROOT / "Standalone/Tools/verify"
 LINUX37 = ROOT / "Standalone/Research/WorldAssemblerM3/Linux37"
 OWNER = ROOT / "Standalone/data/owner_world.json"
-OUT_DEFAULT = ROOT / "Saved/Linux/l41"
+OUT_DEFAULT = ROOT / "Saved/Linux/l42"
 
 PARSER = argparse.ArgumentParser(description=__doc__)
 PARSER.add_argument("tier", choices=("fast", "medium", "full"))
@@ -35,6 +35,7 @@ PARSER.add_argument("--overall-timeout", type=int, default=7200,
                     help="maximum tier wall time in seconds (default: 7200; each child is capped at 1800)")
 ARGS = PARSER.parse_args()
 OUT = ARGS.out.resolve()
+ROUND_NAME = OUT.name
 os.environ["VOXELFORGE_VERIFY_OUT"] = str(OUT)
 os.environ["PYTHONDONTWRITEBYTECODE"] = "1"
 sys.dont_write_bytecode = True
@@ -45,9 +46,9 @@ from runner import VerificationFailure, VerificationRunner, bounded_run
 from source_stamp import source_stamp
 
 
-CLANG = OUT / "bin/VoxelForgeCoreHeadless-l41-clang"
-GCC = OUT / "bin/VoxelForgeCoreHeadless-l41-gcc"
-RENDERER = OUT / "bin/VoxelForgeOffscreenCapture-l41-clang"
+CLANG = OUT / "bin" / f"VoxelForgeCoreHeadless-{ROUND_NAME}-clang"
+GCC = OUT / "bin" / f"VoxelForgeCoreHeadless-{ROUND_NAME}-gcc"
+RENDERER = OUT / "bin" / f"VoxelForgeOffscreenCapture-{ROUND_NAME}-clang"
 HASH_RE = re.compile(r"^\[Pipeline(?:FullDetailHash|WholeViewHash|LODHash|ExactQueryHash)\].*$", re.M)
 RECIPE_RE = re.compile(
     r"^\[WorldAssemblerRecipeAudit\] requested=([^ ]+) actual=([^ ]+).*status=([^ ]+)$", re.M)