Reconcile Melinda landed hierarchy

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# HyperTwist Melinda 2x2x2x2 State And Flat Projection Hierarchy Reconciliation - 2026-05-27
## Status
This document is the source-backed reconciliation note for the current Melinda
`2x2x2x2` family across:
- `HactarCE/2x2x2x2-Scrambler`
- the landed first-party `HyperTwistCore` owner lane
- adjacent higher-dimensional runtime and legacy `4D` reference lanes that must
not silently absorb or overstate this micro-domain
It answers one narrow question:
- does the current `HactarCE/2x2x2x2-Scrambler` source require reopening the
landed bounded first-party Melinda owner lane before any future consumer or
presentation packet is considered
Result:
- no product-code reopening is required
- yes selective authority backfill is required so candidate-era metadata no
longer understates the already-landed Melinda owner lane
- the exact current owner slice remains narrow: Melinda state legality,
parity/handedness and twist validation, move-family application,
random-state generation, scramble-packet construction, and flat debug or
teaching projection
## Source basis
- `C:\HyperTwist\docs\HYPERTWIST_PHASE_0R_PACKET_0R_D_EVALUATION_2026-05-13.md`
- `C:\HyperTwist\docs\REPO_LICENSE_TRACKING.md`
- `C:\HyperTwist\docs\v6_5_deep_manual_pack\HyperTwist\FEATURE_REGISTRY.md`
- `C:\Workspaces\HyperTwist\repos.manifest.json`
- `C:\Workspaces\HyperTwist\clean-room-specs\hactarce-2x2x2x2-scrambler.model-a.md`
- `C:\Workspaces\HyperTwist\clean-room-specs\outputs\hactarce-2x2x2x2-scrambler.model-b-reconciled.md`
- `C:\Workspaces\HyperTwist\mirrors\restrictive\HactarCE\2x2x2x2-Scrambler\README.md`
- `C:\Workspaces\HyperTwist\mirrors\restrictive\HactarCE\2x2x2x2-Scrambler\src\cljc\scrambler\puzzle\core.cljc`
- `C:\Workspaces\HyperTwist\mirrors\restrictive\HactarCE\2x2x2x2-Scrambler\src\cljc\scrambler\puzzle\moves.cljc`
- `C:\Workspaces\HyperTwist\mirrors\restrictive\HactarCE\2x2x2x2-Scrambler\src\cljc\scrambler\puzzle\state_generator.cljc`
- `C:\Workspaces\HyperTwist\mirrors\restrictive\HactarCE\2x2x2x2-Scrambler\src\cljc\scrambler\puzzle\permutation_utils.cljc`
- `C:\Workspaces\HyperTwist\mirrors\restrictive\HactarCE\2x2x2x2-Scrambler\src\cljs\scrambler\ui\flat_view.cljs`
- current first-party runtime and test authority under:
- `C:\HyperTwist\UnrealHyperTwist\Source\UnrealHyperTwist\Public\HyperTwistCore\HyperTwistCoreLibrary.h`
- `C:\HyperTwist\UnrealHyperTwist\Source\UnrealHyperTwist\Public\HyperTwistCore\HyperTwistCoreTypes.h`
- `C:\HyperTwist\UnrealHyperTwist\Source\UnrealHyperTwist\Private\HyperTwistCore\HyperTwistCoreLibrary.cpp`
- `C:\HyperTwist\UnrealHyperTwist\Source\UnrealHyperTwist\Tests\HyperTwistMelindaBound1CoreTest.cpp`
- `C:\HyperTwist\UnrealHyperTwist\Source\UnrealHyperTwist\Tests\HyperTwistMelindaBound2CoreTest.cpp`
- `C:\HyperTwist\UnrealHyperTwist\Source\UnrealHyperTwist\Tests\HyperTwistMelindaBound3CoreTest.cpp`
- `C:\HyperTwist\UnrealHyperTwist\Source\UnrealHyperTwist\Tests\HyperTwistMelindaBound4CoreTest.cpp`
## Slice-local verdict
| Slice | Primary authority | Secondary value kept | Route | Width | Result |
| --- | --- | --- | --- | --- | --- |
| Melinda `2x2x2x2` state model, legality or handedness or twist rules, move-family application, and random-state generation | first-party `HyperTwistCore` lane grounded in `HactarCE/2x2x2x2-Scrambler` | legacy `magiccube4d` remains adjacent reference context only | `R3` | `F2` | unchanged live implementation owner |
| Melinda scramble-packet construction and flat debug or teaching projection | first-party `HyperTwistCore` lane grounded in `HactarCE/2x2x2x2-Scrambler` | legacy `magiccube4d` remains adjacent reference context only | `R3` | `F2` | unchanged live implementation owner |
| Broader `4D` runtime, interaction history, and generalized higher-dimensional ownership | adjacent higher-dimensional lanes | none required from this donor | existing adjacent routes | `F2` | unchanged adjacent owners |
## Why no product-code reopening is required
### `HactarCE/2x2x2x2-Scrambler`
The donor still owns the narrow Melinda micro-domain center of gravity:
- compact Melinda state encoding
- legality, parity, handedness, and twist conservation rules
- move-family semantics and exact application behavior
- solvable random-state generation
- flat debug or teaching projection
That retained slice remains correct. It does not widen into a general hyper
runtime, trainer shell, or broader `4D` application owner.
### Landed first-party owner lane
The first-party owner lane is already live and closed in current code:
- public owner surfaces exist in `HyperTwistCoreLibrary.h` and
`HyperTwistCoreTypes.h`
- first-party state validation is exposed through
`UHyperTwistCoreLibrary::ValidatePuzzleState`
- first-party Melinda scramble-packet construction is exposed through
`BuildMelindaScramblePacketFromGeneratedState` and
`BuildMelindaScramblePacketFromTransformSequence`
- first-party flat projection is exposed through `BuildMelindaFlatProjection`
- the repo-local reconciled note already records `Bounds 1-4 closed`
- focused automation exists for all four Melinda bounds
That means the same-bound owner work is already landed. This pass does not find
an owner-side gap that justifies reopening it.
### Current adjacent owner boundaries
The current adjacent-owner split is also still correct:
- `Hyperspeedcube` remains the broader higher-dimensional runtime anchor
- `magiccube4d` remains legacy `4D` reference context, not the owner of the
narrow retained Melinda state or flat-projection slice
- the Melinda lane stays a small owned core inside `HyperTwistCore`, not a new
general runtime foundation
Those boundaries do not need to be reopened for this lane.
## Selective backfill result
### Earlier packet reopened
- `C:\HyperTwist\docs\HYPERTWIST_PHASE_0R_PACKET_0R_D_EVALUATION_2026-05-13.md`
### Earlier standing note reopened
- `C:\Workspaces\HyperTwist\clean-room-specs\hactarce-2x2x2x2-scrambler.model-a.md`
### Manifest row reopened
- `C:\Workspaces\HyperTwist\repos.manifest.json`
### Additional canon reopened
- `C:\HyperTwist\docs\REPO_LICENSE_TRACKING.md`
- `C:\HyperTwist\docs\v6_5_deep_manual_pack\HyperTwist\FEATURE_REGISTRY.md`
### Reason
The landed lane itself was already correct. The stale part was the metadata:
- the manifest row still preserved the older reset-era wording
- the tracker still described the row mainly as a donor target instead of a
closed landed owner slice
- the feature registry did not explicitly record the Melinda bounded owner
family in its current live form
- the canonical `Model A` handoff needed an explicit landed-status reminder so
future clean work does not accidentally reopen the closed bounds
### Change class
- repo-local extraction did not change
- landed owner interpretation was confirmed rather than reversed
- dependent canon was sharpened so the lane stays narrow and clearly closed
- no product-code change occurred
### What remained valid
- the restrictive `GPL-3.0` clean-room route remained valid
- the original `0R-D` decision to keep this lane narrow remained valid
- the repo-local `Bounds 1-4 closed` conclusion remained valid
### What changed
The dependent canon now makes the current landed role explicit:
- keep Melinda ownership inside `HyperTwistCore`
- keep broader higher-dimensional runtime ownership with adjacent live lanes
- keep `magiccube4d` as legacy reference context rather than a retained winner
for this narrow slice
- do not reopen the closed `Bound 1` through `Bound 4` sequence by default
## Propagation result
### Feature registry
Updated.
The registry now says what is actually live: first-party Melinda ownership is
real for state legality, random-state generation, move-family application,
scramble-packet construction, and flat debug or teaching projection behavior.
### Cross-lane doctrine
No doctrine wording change was needed.
This pass applied the existing `A/R/F` hierarchy; it did not change the
hierarchy rules themselves.
### Skillization
No doctrine or `SKILLS.md` change was needed.
This pass did not create or reopen any command or skill surface.
### Legal evidence
No license-status or mirror-custody change occurred.
The repo-row tracker, feature registry, manifest row, and canonical handoff
status were sharpened instead.
## Operational answer
Before any future Melinda consumer shell, generalized `4D` widening, or broader
higher-dimensional packet is considered, the correct move was this authority
backfill first.
After this pass:
- do not reopen `Bound 1`, `Bound 2`, `Bound 3`, or `Bound 4`
- do not reinterpret adjacent higher-dimensional reference context as a
same-bound owner gap
- if later work is justified, scope it as a new consumer-owner or widening
packet above the closed Melinda owner lane

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@ -358,6 +358,17 @@ Integration call:
- use it in `Phase 2R` to freeze the state format, solvability rules, move-family behavior, and debug-view acceptance criteria
- refresh the Model A handoff with the fuller state, parity, and view findings
- if later implementation proceeds, schedule Model B work in `Phase 5R`, not as direct donor use
- current `2026-05-27` reconciliation overlay:
- repo-local extraction unchanged
- the first-party `HyperTwistCore` Melinda owner lane is now verified live
and closed through `Bound 4`
- the landed owner slice is narrow: state legality, move-family application,
random-state generation, scramble-packet construction, and flat debug or
teaching projection
- keep broader higher-dimensional runtime ownership with adjacent live lanes
and keep `magiccube4d` only as legacy reference context for this slice
- do not reopen `Bound 1` through `Bound 4` by default; later work must be a
new consumer-owner or widening packet if justified
### `kash/cubedesk`

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- treat it as a focused restrictive clean-room donor for Melinda `2x2x2x2` random-state generation, parity/handedness logic, move-family semantics, and flat debug rendering
- Model B must not read the mirror
- Model B may only consume `C:\Workspaces\HyperTwist\clean-room-specs\hactarce-2x2x2x2-scrambler.model-a.md`
- current `2026-05-27` reconciliation overlay:
- the bounded first-party `HyperTwistCore` Melinda owner lane is verified
live and closed through `Bound 4`
- the landed owner slice is state legality, random-state generation,
move-family application, scramble-packet construction, and flat debug or
teaching projection
- keep broader higher-dimensional runtime ownership with adjacent live lanes
and keep `magiccube4d` only as legacy reference context for this slice
- do not reopen the closed owner lane by default; later work must be a new
consumer-owner or widening packet if justified
### `HactarCE/Hyperspeedcube`

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@ -153,6 +153,7 @@ repo.
| Seeded competition scramble workflow and lightweight scramble-operator shell adjuncts | Deep-source grounded retained | `cubing/cubing.js` retained lane + `cubing/mark3` / `cubing/scramble.cubing.net` successor evaluation | Source-backed successor surfaces sharpen competition-spec workflow and operator-shell expectations above the retained scramble and visualization seams, but they do not displace `cubing/cubing.js` or `cubing/twisty.js`; `scramble-display` remains comparison-only. |
| Replay shell and timeline | Implemented now | landed `cubing/twisty.js` bounded packets | First-party `HyperTwistSimulation` now owns the bounded replay-player shell, cursor/timeline transport, adapter/bootstrap, and local visualization or fallback presentation contract grounded in `cubing/twisty.js`; classic-cubing semantics remain with `cubing/cubing.js`, parser and AST ownership remain with `cubing/alg.js`, and broader browser support ownership stays with the landed browser lanes. |
| Algorithm/training semantic lane | Implemented now | landed `cubing/alg.js` bounded packets | First-party `HyperTwistAlgorithm/*` now owns the bounded parser, AST, traversal, validation, keyboard-mapping, and share/interchange contract grounded in `cubing/alg.js`; current training-runtime parse/store/serialize usage remains a consumer seam above that owner lane rather than proof that the lane is still open. |
| Melinda `2x2x2x2` state core and flat teaching projection | Implemented now | landed `HactarCE/2x2x2x2-Scrambler` bounded packets | First-party `HyperTwistCore` now owns the bounded Melinda state legality, parity or handedness and twist validation, move-family application, random-state generation, scramble-packet construction, and flat debug or teaching projection contract grounded in the restrictive lane; broader higher-dimensional runtime ownership remains with adjacent live lanes and `magiccube4d` remains legacy reference context only. |
| Readable classic-cube state/history and beginner-helper benchmark | Deep-source grounded retained | `vwcwong/CubeSim` retained clean-room benchmark lane | Retained as `A1 + R4 + F2` only for a small renderer-independent classic-cube state/history split, scramble parse or invert behavior, and beginner `LBL` decomposition benchmark for later clean-room lesson/debug/helper use. This does not displace the first-party canonical replay packet, training attempt/solve/review history, or the bounded classic-cube `Phase 6R-Q/R/S` explanation and correction shells. |
| Large-`N` classic-cube center/edge/parity strategy | Deep-source grounded retained | `ShellPuppy/RCube` retained benchmark/oracle lane | Retained as `A1 + R4 + F2` only for large-`N` classic-cube center-stage planning, edge-pairing/parity handling, and virtual-rotation strategy. This does not displace the landed `Hyperspeedcube`, `MagicTile`, `Magic120Cell`, or `MagicCube5D` higher-dimensional runtime families, and it does not reopen the bounded classic-cube `Phase 6R-Q/R/S` shell/state seams. |
| Hyper puzzle catalog | Implemented now | `Hyperspeedcube` bounded packet | Current realized hyper-puzzle entry slice. |