Fensalir/docs/planet-work-assimilation.md

Fensalir planet work: validation and reorientation beside Asura

Status: Imagination pass 1, 2026-09-30. Nothing committed and no working tree switched. The build probes ran on Yggdrasil through ygg-verify.sh, using composite snapshots in a scratch repo. That repo lives in the scratchpad, not in any project.

Adopting instruction (operator, 2026-09-30): "Fensalir planet work is old, needs validation and reorientation beside the Asura campaign".

Rulings (operator, 2026-09-30)

• Q-F1: no planet terrain in Fensalir for now. The July planetary runtime retires behind an archive tag. A landing-scale Zyphos would be a new campaign built on Asura, not a revival of that runtime.
• Q-F2: park the flow docs, with a status line: parked, superseded by Asura for the field, no code.
• Q-F3: triage now. Eyes classifies each non-planet line on the donor ref before anything is tagged or deleted: the 66 Bokusho commits, the Eve native surface work, Leap/stereo, and the reservoir work. P1 waits for that triage.
• Q-F4: delete Geometry's duplicate vector types before Asura Cut 3 (P4, in CultLib). This is on Asura's critical path.

Pinned heads (every file:line below is against these)

Repo	Ref	SHA	Note
Fensalir	origin/main = local main	e053486	3 commits past the merge base, all housekeeping
Fensalir	origin/codex/geometry-ownership-migration (the donor)	42778c1	125 ahead of merge base 57b6040 (2026-05-30)
Fensalir	origin/codex/leap-packed-depth	492d123	the donor minus its last commit
CultLib	origin/main	93fe1b9	includes the bounded-least-squares merge; local main is 069ecc3
CultLib	origin/codex/geometry-ownership-migration	6a65369	the donor's other half: 31 ahead of a58daa5 (2026-07-12), 832 behind
CultLib	tags gamecult-geometry{,-rs,-unity}-v0.1.0	b65619f	pushed to origin, on origin/codex/geometry-cultmesh-unity-release, not in main
CultMath (standalone, retired)	main	1c007a5	"Point CultMath history at its CultLib home"; planetary deleted at 6a16260
Asura	main	63f9216	snoise fix status recorded; the fix is on CultLib hands/cultmath-snoise-grad 0a5f4bf

Verdict

Retire the planet work. Do not land it. The donor has no surviving code owner: CultMath deleted the planetary runtime in July, and CultLib never merged it. Asura has since claimed the planet field with a design that contradicts the donor's central promises. Its erosion port is the one Asura already judged "not a source". Its only consumer is a Fensalir demo client that has not changed since 2026-05-30.

One idea from the geometry half is still live and time-sensitive: deleting the duplicate vector types from GameCult.Geometry. That is separate work, but it has a closing window. Once Asura Cut 3 ships GameCult.Geometry.dll into Unity, the duplicate CultVec3 becomes public Unity API (Q-F4).

Most of the branch is not planet work at all. 66 Bokusho commits, 10 Eve commits, and the Leap/stereo and reservoir work ride on the same ref. They need their own adoption decision before any ref is deleted (Q-F3).

---

1. Validation report

1.1 What the donor actually is

Grouping git log 57b6040..42778c1 by subject:

Slice	Commits	Dates	Size
Leap stereo depth, point cloud, reservoir history, camera fusion, loopback audio	~20	05-30 to 05-31	inside the 61-file, +8832/−279 pre-planet diff
Eve native surface client (Direct2D, CultUI previews)	~17	05-31 to 06-02	same
Bokusho brush simulation on D3D12	66	06-12 to 06-16	BokushoBrushSimulation.cs +1076, D3D12BokushoBrush.hlsl +699, tests +1143
Planet slice	23	07-12 to 07-22	61 files, +2865/−359 (5854630^..42778c1)

Inside the planet slice, only the last three commits are the "geometry ownership migration":

• 2531df5 moves Fensalir onto CultMath's July planetary runtime.
• 492d123 deletes Fensalir's CubeFace, CubeFacePosition and CubeTileKey.
• 42778c1 renames every consumer from cultmath_planetary_* to gamecult_geometry_planetary_*.

Its partner commits live in CultLib (13e8c56..6a65369) and CultMath (6a16260).

1.2 Merge probes (git merge-tree --write-tree)

• Fensalir, donor into origin/main: 7 conflicts.
  • Content conflicts in Fensalir.sln, README.md, docs/README.md and src/Aquarium.Engine/Aquarium.Engine.csproj.
    • The csproj conflict matters. Main's dc35ecc moved CultMath to $(CultLibRoot)\packages\cultmath\... (Aquarium.Engine.csproj:4,26 at e053486). The donor still points at the standalone repo (..\..\..\CultMath\src\CultMath\CultMath.csproj, Aquarium.Engine.csproj:25 and Aquarium.Engine.Contracts.csproj:10 at 42778c1).
  • Modify/delete conflicts in src/Saga/{README.md,Saga.csproj,SagaOrgan.cs}. Main deleted Saga as dead in d755d9c; the donor still migrates it.
• CultLib, July branch into origin/main: 23 conflicts.
  • 13 are source and docs, including a modify/delete on CultDocumentMessagePackGenerator.cs, which main deleted. The others are in CultManagedDocument.cs, the serialization code, GameCult.Geometry.csproj and README.md, GeometryDocumentTests.cs and build-unity-package.ps1.
  • 10 are prebuilt Unity DLLs and pdbs.
  • The branch is 832 commits behind. That is not a merge; it would be a re-implementation.

1.3 Build probes (Yggdrasil, mcr.microsoft.com/dotnet/sdk:10.0, Linux)

The probes use three composite snapshots in the scratch repo. Each lays the three repos out as siblings, the way the csproj relative paths expect.

Probe	Layout	Result
mainline	Fensalir e053486 + CultLib 93fe1b9	Aquarium.Engine.Fractal builds. Fractal tests: 167/167 pass
then (the July world)	Fensalir 42778c1 + CultLib 6a65369 + CultMath b43cf49	Restore fails first with NU1101: CultMath 0.1.0 comes only from a git-ignored local feed (CultLib/Directory.Build.props:18-19 at 6a65369: ..\CultMath\.tools\local-feed). After dotnet pack of CultMath b43cf49 and passing the feed explicitly, the lib builds and the Fractal tests give 169/170. The failure is ProjectionTests.CheckedInProjectionReportMatchesSampler, which passes on mainline. The donor regenerated research/rendering/fractal-projection-report.md against the July projection code on Windows; this was not chased.
now (donor against today's owners)	Fensalir 42778c1 + CultLib 93fe1b9 + CultMath 1c007a5	Fails with 10 unique errors (FRACTAL_LIB_EXIT=1). Nine are CS0246 for PlanetaryCubeFace, PlanetaryTileAddress and PlanetaryFaceCoordinate (FractalDslCompiler.cs:505, FractalStableKeyBuilder.cs:8, ICubeSphereProjection.cs:11, NormalizeCubeSphereProjection.cs:11, ProjectionDistortionResult.cs:8, ProjectionDistortionSampler.cs:14,61,68, TangentCubeSphereProjection.cs:11). The tenth is CS1704: two assemblies named CultMath are loaded, one from the standalone repo through the donor's Contracts reference and one from CultLib packages/cultmath through GameCult.Geometry. The donor straddles the pre-monorepo and monorepo layouts.

Static proof that "now" cannot build, independent of the probe: every Planetary* symbol the donor consumes is absent from CultLib main.

• The donor uses these (git grep at 42778c1): PlanetaryCubeFace (47 uses), PlanetaryTileAddress (24), PlanetarySurfacePages, PlanetaryProjectionKind, PlanetaryFaceCoordinate, PlanetaryPageSampling, PlanetaryPageLayout, PlanetaryResidualResidency, PlanetaryLodSelector, PlanetaryGpuPageBuilder, AdvancedErosionParameters and the GameCultGeometry* HLSL structs.
• Counts on CultLib 93fe1b9: PlanetaryCubeFace 0, PlanetaryTileAddress 0, PlanetaryTopology 0.
• src/GameCult.Geometry/Shaders/ does not exist on main, so #include "GameCult.Geometry/GameCult.Geometry.hlsl" (D3D12ZyphosTerrain.hlsli:4 at 42778c1) has nothing to resolve.

Not run, because it needs Windows and D3D12:

• tests/Aquarium.Engine.Tests: D3D12PlanetarySurfacePageTests, D3D12PlanetaryTopologyParityTests and D3D12AdvancedErosionParityTests, which are GPU readback parity tests;
• Aquarium.Engine itself (Vortice D3D12);
• the Zyphos client.

Per the workstation budget, none of this ran on Starfire. Given the verdict, it does not need to run at all: the GPU parity would prove a runtime nobody will keep.

1.4 What is still right, and what has rotted

Still right:

• The donor's direction of dependency. Algorithms sit in a library and D3D12 resources stay in Fensalir. That matches the doctrine and Asura's own shape (CultLib algorithms, consumer-owned rendering).
• The July migration plan's authority sentence: "CultMath owns how numeric primitives behave; GameCult.Geometry owns what those primitives mean in space" (CultLib docs/cultmath-gamecult-geometry-migration-plan.md:56-57 at 6a65369). CultLib main adopted the same split at 63d6094 (2026-08-26), and HlslMirrorTests.cs:7-15 on main enforces the CultMath side.
• The idea of deleting CultVec2/CultVec3 (CultLib 317b7d5). Main still carries both (see Q-F4).

Rotted:

1. Ownership of the planet field. The donor's objective (docs/cultmath-planetary-field-runtime-plan.md:3-15 at 42778c1) makes a shared library the canonical planet field for "Aetheria's daemon simulation, Unity's three-dimensional planet renderer, Fensalir's D3D12 renderer, and Electron/Web strategic maps". Asura now owns Aetheria's planets and rules the opposite:
   • The field is HLSL only, and the CPU never evaluates it (Asura docs/target.md:42-47, invariant 2).
   • There is no landing and no surface streaming (the scope boundary).
   • The donor's authoritative CPU queries, residency LOD and QSC page streaming are therefore out of scope, or forbidden outright.
2. The erosion port. Asura's 4b-iii already rejected the July spherical_erosion because it "lerps raw phases across cells instead of blending phasors, which is not Phacelle" (docs/cut-map.md:1132-1135, :1736 at 63f9216). Phacelle is going into CultMath fresh (2a-ii-b).
3. Derivatives. Zyphos's base field is ad hoc sine plates with a central-difference gradient (D3D12ZyphosTerrain.hlsli:113-129 at 42778c1). That is the pattern Asura's invariant 8 exists to prevent.
4. The code owner is gone. CultMath deleted the planetary runtime (6a16260, reachable from CultLib main through the subtree). The receiving CultLib branch never merged. On mainline the runtime is orphaned: it exists only on unmerged branches and the three pushed v0.1.0 tags.
5. The build contract. It needs an untracked local NuGet feed (see 1.3) and paths from before the monorepo.
6. The CultLib geometry half diverged from main's ruling.
   • The branch absorbs CSG into GameCult.Geometry (6b44f96). Main ruled that GameCult.Geometry.Csg owns CSG production behaviour (63d6094, src/GameCult.Geometry/README.md), and that repo shipped distance(p) at d84acb6.
   • The branch also adds a geometry worker, CultGeometryWorkerDocuments, CultGeometryWorkerProvider and "v2 contracts". None of these exist on main, and main's documents never moved to v2.

---

2. Ownership table

Piece (donor)	Where it sits in the donor	Owner today	Disposition
Planet field definition, base field and erosion as one function	CultLib branch src/GameCult.Geometry/Planetary/PlanetaryField.cs, Shaders/Planetary.hlsl	Asura (field in HLSL, per body archetype)	Retire. Duplicates Asura's field
Advanced erosion filter (Johansen port) and SphericalErosion	branch Planetary/AdvancedErosionFilter.cs, SphericalErosion.cs, Shaders/AdvancedErosionFilter.hlsl	Asura 4b-iii (AsuraErosion.hlsl, fresh port with provenance)	Retire. Asura already ruled it "not a source"
Phacelle and noise primitives	embedded in the erosion port	CultMath (2a-ii-b phacelle, CultPhasor)	Retire the embedded copy
Cube-sphere/QSC topology, tile addresses, page layout, residency, LOD selection, patch meshes, radial refinement	branch Planetary/PlanetaryTopology.cs, PlanetaryPages.cs, PlanetaryResidency.cs, PlanetaryPatch.cs, PlanetaryRadialRefinement.cs	No live consumer. Asura meshes with surface nets and tiles per quad; streaming is out of scope	Retire. Revive only through a new campaign with a named consumer (Q-F1)
CPU ray, region and great-circle queries for an "Aetheria daemon"	branch Planetary/PlanetaryQueries.cs	Forbidden by Asura invariant 2. The dock-site query is Asura's	Retire
Map projections and CMPT tile codec (Electron maps)	branch PlanetaryProjection.cs, PlanetaryMapTileEncoding.cs, TS decoder	No consumer exists or is planned	Retire
org.gamecult.geometry Unity package and planetary viewer sample	branch unity/org.gamecult.geometry/**, tags b65619f	Superseded: Asura Cut 3 ships Geometry inside org.gamecult.cultlib	Retire the branch. Keep the pushed tags as immutable history (Q-F3)
Frequency-band selection by sample footprint	branch Planetary/ErosionFrequencyBands.cs	Asura (band limits per lowering; target invariant 8, Q11)	Retire. Same concept, and Asura implements it fresh
D3D12 page buffers, root parameters 29-32, dispatch, patch raster, debug modes	Fensalir D3D12Renderer.cs:99-102,223 and about 157 planetary lines; AquariumRenderPlan.cs:526-565 (render ABI) at 42778c1	Fensalir would own it if Fensalir rendered planets. Its only producer is the retired runtime	Retire with the runtime
DXC include resolver for Packages/org.gamecult.cultmath/shaders/ and GameCult.Geometry/	Fensalir D3D12ShaderCompiler.cs:68-102 at 42778c1	Fensalir. On main no shader includes CultMath HLSL at all	Retire. Its search paths are also stale (the standalone CultMath/shaders, pre-monorepo). Rebuild against packages/cultmath/shaders when a Fensalir shader first includes CultMath
Zyphos terrain shaders, page and patch entry points, ZyphosPlanetarySurfacePages	Fensalir src/Aquarium.Zyphos/** at 42778c1	Fensalir's demo client. Main's Zyphos keeps its pre-July analytic sphere	Retire
Fensalir's CubeFace, CubeFacePosition, CubeTileKey and the projection code in Aquarium.Engine.Fractal	Main keeps them. The donor deleted them in favour of Geometry	Fensalir (fractal DSL, projection reports; 167 tests green on main)	Keep on main; nothing to do. The donor's deletion is void once the runtime is retired
Planetary flow organ (ocean and atmosphere advection), documentation only	Fensalir main: docs/planetary-flow-{organ,nn-architecture,implementation-plan}.md (289/462/185 lines); docs/README.md:39-44; state/map.yaml:114-120 and the flow next_actions entries after :171	Fensalir, as plans. No code exists; last touched 2026-05-29. Not in Asura's scope (no atmospheres or oceans)	Q-F2
Vector-type unification (delete CultVec2/CultVec3/CultRect in favour of CultMath float2/float3/rect)	CultLib branch 317b7d5, 364c9cd	CultMath owns the vector vocabulary (main 63d6094). Main still has the duplicates: CultGeometryPrimitives.cs:11,62,128 and the origin parameter of CultGeometryIsoSurface.cs:42 and CultGeometrySurfaceNets.cs:47	Q-F4: a fresh cut on main, not the branch code
CSG absorption, geometry worker, v2 schemas, Rust gamecult-geometry-rs	CultLib branch	CSG: GameCult.Geometry.Csg (main's ruling). The rest have no owner and no consumer	Retire with the branch

Duplication against Asura (one side is cut, not kept in parallel)

Concept	Donor	Asura	Side cut
Planet shape function	PlanetaryFieldDefinition plus base-field provider (CPU and HLSL)	the field `f(p) =	p
Erosion	July port with raw-phase lerp	4b-iii fresh port, exact Phacelle, provenance file	donor
Level of detail	QSC pages, residency, projected-error LOD	surface-net grid resolution plus per-body tile N	donor. Asura's scope rules streaming out
Band limiting	ErosionFrequencyBands	per-lowering band limit (Q11)	donor
Unity packaging	org.gamecult.geometry	org.gamecult.cultlib (Cut 3, default A)	donor

---

3. Cuts

Every cut below is deletion or documentation, with no new code. Numbers are prefixed P so they cannot be confused with Asura's cut numbers.

P0. Operator rulings (Self; blocks everything below)

Q-F1 and Q-F3 must be ruled before P1. Q-F2 gates P3. Q-F4 gates P4.

P1. Archive the refs, then delete them (Fensalir, CultLib, standalone CultMath)

• Precondition: Q-F3 ruled. The non-planet work on the Fensalir donor (Bokusho, Eve surface, Leap) must be either archived with it or adopted separately first.
• Deletes first:
  • Fensalir remote branches: codex/geometry-ownership-migration (42778c1) and codex/leap-packed-depth (492d123, a strict ancestor).
  • CultLib remote branches: codex/geometry-ownership-migration (6a65369) and codex/geometry-cultmesh-unity-release (b65619f).
  • The standalone CultMath remote codex/geometry-ownership-migration (b43cf49), already an ancestor of CultMath main, so deleting it loses nothing.
• Then:
  • An annotated tag at each unique tip, so every commit stays reachable:
    • Fensalir archive/geometry-ownership-migration → 42778c1;
    • CultLib archive/geometry-ownership-migration → 6a65369;
    • CultLib archive/geometry-cultmesh-unity-release → b65619f, if a branch ref is wanted beyond the release tags that already pin it.
  • The tag message names this map and the ruling.
  • The published gamecult-geometry{,-rs,-unity}-v0.1.0 tags stay: they are released, immutable artifacts.
• Authority map:
  • Owner of planet shape: Asura. Owner of numeric primitives: CultMath.
  • Derived: the archive tags are history only, and nothing resolves a build from them.
  • Forbidden writers: any branch that could be merged back to revive Planetary* in CultLib, or cultmath_planetary_* in CultMath.
  • Shared paths: none. No mainline build references these refs; the mainline probe proves Fensalir main builds without them.
• Verification:
  • git merge-base --is-ancestor <old tip> archive/<name> for each deleted ref, run before deleting.
  • git ls-remote --heads origin | grep -c geometry-ownership gives 0 in all three repos.
  • Mainline probe re-run (Fensalir e053486 + CultLib main): 167/167.
  • Negative: git grep -c "Planetary" origin/main -- src packages in CultLib stays at its current count (only HlslMirrorTests.cs:12,14).
• Subtraction: 5 remote branch refs, net of the 2–3 archive tags. The unmerged surface removed from view is Fensalir +11,650/−591 (116 files) and CultLib +14,933/−317 (156 files). No mainline lines change.
• Hands budget: about 20k tokens. It is ref surgery and needs the operator's credentials for the pushes.

P2. Asura documents: replace "do not delete it" with the ruling (Asura, docs only)

• Deletes first, at Asura 63f9216:
  • docs/target.md:110-113: the "Not consumers" bullet naming the branches.
  • docs/cut-map.md:814-820, Cut 3's "Not a source", including "do not delete it; see findings".
• Then:
  • One sentence in each place: the July planetary line was retired on 2026-09-30 and archived at the tags from P1; Asura is the sole owner of planet shape.
  • cut-map.md:1132-1135 and :1736 keep their technical reason (raw-phase lerp, not Phacelle). They point at the archive tag instead of the branch names.
  • target.md:252 (the substrate fact about the unity-v0.1.0 tag) stays true and is unchanged.
• Authority map: target.md owns the ends, so the retirement ruling is recorded under its dated operator rulings. The cut map only points at it.
• Verification:
  • rg -n "codex/geometry-" docs/ in Asura gives 0 lines.
  • rg -n "do not delete it" docs/ gives 0.
• Subtraction: about −8 +4 lines.
• Timing: Self can do this in the same pass that records the rulings. It does not touch 2a-ii.

P3. Fensalir main: record the disposition; flow docs per Q-F2 (Fensalir main)

• If Q-F2 = retire. Deletes first, at e053486:
  • docs/planetary-flow-organ.md, docs/planetary-flow-nn-architecture.md and docs/planetary-flow-implementation-plan.md (936 lines);
  • docs/README.md:39-44;
  • state/map.yaml:114-120, and the flow entries in next_actions (the bullets beginning "Build the planetary flow organ" and "For planetary flow modeling", about 10 lines after :171).
• If Q-F2 = park: add one "Status: parked 2026-09-30, no consumer" line at the top of each of the three docs instead.
• Then, either way:
  • One line in state/map.yaml: Fensalir renders no planet terrain beyond the Zyphos demo's analytic sphere. Planet shape for GameCult games is Asura's. If Fensalir ever renders an Asura body, it lowers Asura's field HLSL and owns only D3D12 resources.
  • Fix README.md:141 from "planetary/fractal terrain demo" to "fractal terrain demo", only if the operator agrees the demo carries no planet ambition. Otherwise leave it.
• Authority map: Fensalir owns its renderer and demos. It claims no planet field.
• Verification:
  • git grep -n -i "planetary" origin/main -- docs/README.md state/map.yaml matches the intended remainder.
  • The mainline Fractal probe still gives 167/167; docs cannot break it.
• Subtraction: retire gives about −950 lines and +2. Park gives +3.
• Hands budget: about 15k tokens.

P4. CultLib: collapse CultVec2, CultVec3 and CultRect into CultMath, before Asura Cut 3 (only if Q-F4 = A)

• Why now:
  • Asura Cut 3 (docs/cut-map.md:801) ships GameCult.Geometry.dll in org.gamecult.cultlib 1.1.0.
  • Both extractors take CultVec3 origin, so the duplicate type becomes Unity public API in that release. Deleting it afterwards is a semver major.
  • CultGeometrySurfaceNets.cs:83 already converts CultVec3 to float3 internally.
• Deletes first, at CultLib 93fe1b9:
  • In src/GameCult.Geometry/CultGeometryPrimitives.cs:
    • CultVec2 (:11-60) and CultVec3 (:62-126);
    • CultRect (:128-197), which duplicates CultMath rect (packages/cultmath/src/CultMath/rect.cs:7, added 2026-08-07).
  • CultCircle and CultSphere stay; they are spatial meaning, and that is Geometry's. They are rebuilt on float2/float3.
• Then:
  • CultGeometryIsoSurface.Extract(..., float3 origin = default, ...) (:42) and CultGeometrySurfaceNets.Extract(..., float3 origin = default, ...) (:47); delete the conversion at :83.
  • Update the tests: GeometryDocumentTests.cs (16 uses), IsoSurfaceTests.cs and SurfaceNetsTests.cs.
  • Update src/GameCult.Geometry/README.md.
• Explicitly out of scope: CultMesh's native-slice value-type names "CultVec2" and "CultVec3" (packages/cultmesh-ts/test/cultmesh.test.ts:1717,2440,2453, and src/GameCult.Mesh/docs/public-api.md). Those are wire vocabulary with their own owner. Record them as a finding for the CultMesh owner; do not rename them here.
• Authority map:
  • Owner: CultMath owns vector and rectangle values. Geometry owns what they mean in space.
  • Forbidden writers: any type in GameCult.Geometry that carries x/y/z fields.
• Verification (Yggdrasil):
  • dotnet test tests/GameCult.Geometry.Tests, with the per-file counts. The Surface Nets byte-identical fixtures from Asura Cut 2 (31 fixtures) must stay byte-identical.
  • Negative: git grep -n "CultVec\|CultRect" -- src/GameCult.Geometry tests/GameCult.Geometry.Tests gives 0.
  • Stryker --since:93fe1b9 on the touched files.
• Subtraction: about −190 lines of duplicate value types, plus test churn, net negative.
• Sequencing: after Q13 (it blocks Cut 3 anyway) and before Cut 3's release tag. It can run beside 2a-ii-b.
• Hands budget: about 60k tokens.

---

4. Sequencing against Asura

Asura:   2a-ii-a snoise fix (Hands done 0a5f4bf, Soul running) -> 2a-ii-b Phacelle -> 2a-ii-c cultmath 0.3.0 (with bounded LS, already on main 93fe1b9)
                                                                                   \
         Q13 (Geometry CultReference strings) ------------------------------------> Cut 3 cultlib-unity 1.1.0 ---> 4a ...
                                                   P4 (Q-F4 = A) ------------------/   (must land before this tag)

This map: P0 rulings -> P2 (Asura docs, any time) ; P1 (refs, after Q-F3) ; P3 (Fensalir docs, after Q-F2)

• None of P1–P3 touches CultMath or CultLib source, so none can collide with the snoise fix, Phacelle, or the 0.3.0 release that carries bounded least squares.
• P4 is the only cut on Asura's critical path. It must land before Cut 3's tag, and it touches GameCult.Geometry, which Cut 3 packages. Run it in its own worktree from main, never in the snoise worktree.
• The Asura campaign gains nothing from the donor. 4b-iii stays a fresh port.

---

5. Operator questions (one fork each)

Q-F1. What is a planet in Fensalir for?

Asura answers this for Aetheria: orbital tiny planets, no landing. The donor answered it for "every renderer, including an Aetheria daemon and strategic maps", and that answer has been overtaken. What remains is Fensalir's own Zyphos demo: the domain catalog runs from planet to continent, forest, tree, leaf and pebble field (ZyphosSpatialDomainCatalog.cs on main). That is landing-scale LOD, which Asura rules out.

• A. No planet terrain in Fensalir for now. Retire the donor (P1–P3). If a GameCult game later wants planets in Fensalir, it lowers Asura's field HLSL.
• B. Zyphos needs landing-scale planets. That is a new campaign with its own target. It would decide whether streaming LOD extends Asura's field (one field, two lowerings) or is a separate organ. It must not revive the July runtime as a second planet-field owner.
• C. Keep the donor alive as a Fensalir-private runtime. This recreates a second planet-field authority beside Asura, over an orphaned library.

Recommended: A. Nothing on main consumes the donor. The Zyphos client has not moved since 2026-05-30. B stays open as a future campaign and loses nothing by waiting.

Q-F2. The planetary flow documents in Fensalir: what are they for now?

There are three documents (936 lines) for a cube-sphere ocean and atmosphere advection organ with neural-network budgets (FlowNet-S/M/T). No code exists, they were last touched 2026-05-29, and their only client is the Zyphos demo. Asura is not affected. Separately, Asura's target queues "the flow field as the single owner of motion in Aetheria" as a later campaign. That is a different flow.

• A. Retire (P3 deletes them). If Zyphos oceans return, their campaign starts from a target, not from these plans.
• B. Park them with a status line.

Recommended: B, weakly. They carry real research (datasets, model sizing), nothing depends on them, and parking costs 3 lines. Choose A if you want the docs tree to describe only live machinery.

Q-F3. The non-planet work that rides on the same Fensalir branch

The donor ref also holds 66 Bokusho commits (a D3D12 port beside the TS/WebGPU bokusho repo), 10 Eve native-surface commits, and the Leap/stereo depth, reservoir and loopback-audio work. None is on Fensalir main.

• A. Archive the whole ref under one tag in P1, and route each of those lines to its own adoption decision later.
• B. Adopt them before touching the ref.

Recommended: A. An archive tag keeps every commit reachable, so B is still possible afterwards. This map does not judge those lines.

Q-F4. Delete Geometry's duplicate vectors before Asura Cut 3 ships them to Unity?

What is CultVec3 for? Nothing that float3 does not already do, and the surface-nets code converts it straight to float3 (CultGeometrySurfaceNets.cs:83). The July branch deleted it, and main never did.

• A. P4 before Cut 3: no semver cost, and about −190 lines.
• B. Ship Cut 3 as is: a later deletion is a major bump for org.gamecult.cultlib.

Recommended: A. It is the one piece of the geometry half that is right, and it gets more expensive after Cut 3's release.

6. Findings not assigned to a cut

• Unreproducible build (CultLib 6a65369). The July CultLib branch restores CultMath 0.1.0 from a git-ignored local feed. The "Fensalir and Aetheria green" receipts in its progress document (docs/cultmath-gamecult-geometry-migration-progress.md, stage 6) could not have been reproduced from committed sources alone. The branch is being retired, so this is recorded as a scar and needs no fix.
• A failing test in the donor's July world. ProjectionTests.CheckedInProjectionReportMatchesSampler fails on Linux in the July composite (169/170), and the same test passes on mainline. The most likely cause is a platform difference in the regenerated report. It was not chased, because the code is being retired.
• CultMath's HlslMirrorTests.cs:7-15 is a negative spelling test. It guards against planetary kernels returning to CultMath and is cited by Asura as the ruling's enforcement. Keep it; after P1 its only threat is gone, but it is cheap and names the boundary.
• Stopgap note. Composite multi-repo snapshots are how a Fensalir build can be probed on Yggdrasil at all: ygg-verify.sh takes one repo, and Fensalir needs sibling checkouts. The Idunn verify campaign should take a multi-repo revision set rather than rely on this trick.