Reconcile Melinda landed hierarchy
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# HyperTwist Melinda 2x2x2x2 State And Flat Projection Hierarchy Reconciliation - 2026-05-27
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## Status
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This document is the source-backed reconciliation note for the current Melinda
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`2x2x2x2` family across:
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- `HactarCE/2x2x2x2-Scrambler`
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- the landed first-party `HyperTwistCore` owner lane
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- adjacent higher-dimensional runtime and legacy `4D` reference lanes that must
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not silently absorb or overstate this micro-domain
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It answers one narrow question:
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- does the current `HactarCE/2x2x2x2-Scrambler` source require reopening the
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landed bounded first-party Melinda owner lane before any future consumer or
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presentation packet is considered
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Result:
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- no product-code reopening is required
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- yes selective authority backfill is required so candidate-era metadata no
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longer understates the already-landed Melinda owner lane
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- the exact current owner slice remains narrow: Melinda state legality,
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parity/handedness and twist validation, move-family application,
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random-state generation, scramble-packet construction, and flat debug or
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teaching projection
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## Source basis
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- `C:\HyperTwist\docs\HYPERTWIST_PHASE_0R_PACKET_0R_D_EVALUATION_2026-05-13.md`
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- `C:\HyperTwist\docs\REPO_LICENSE_TRACKING.md`
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- `C:\HyperTwist\docs\v6_5_deep_manual_pack\HyperTwist\FEATURE_REGISTRY.md`
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- `C:\Workspaces\HyperTwist\repos.manifest.json`
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- `C:\Workspaces\HyperTwist\clean-room-specs\hactarce-2x2x2x2-scrambler.model-a.md`
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- `C:\Workspaces\HyperTwist\clean-room-specs\outputs\hactarce-2x2x2x2-scrambler.model-b-reconciled.md`
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- `C:\Workspaces\HyperTwist\mirrors\restrictive\HactarCE\2x2x2x2-Scrambler\README.md`
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- `C:\Workspaces\HyperTwist\mirrors\restrictive\HactarCE\2x2x2x2-Scrambler\src\cljc\scrambler\puzzle\core.cljc`
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- `C:\Workspaces\HyperTwist\mirrors\restrictive\HactarCE\2x2x2x2-Scrambler\src\cljc\scrambler\puzzle\moves.cljc`
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- `C:\Workspaces\HyperTwist\mirrors\restrictive\HactarCE\2x2x2x2-Scrambler\src\cljc\scrambler\puzzle\state_generator.cljc`
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- `C:\Workspaces\HyperTwist\mirrors\restrictive\HactarCE\2x2x2x2-Scrambler\src\cljc\scrambler\puzzle\permutation_utils.cljc`
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- `C:\Workspaces\HyperTwist\mirrors\restrictive\HactarCE\2x2x2x2-Scrambler\src\cljs\scrambler\ui\flat_view.cljs`
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- current first-party runtime and test authority under:
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- `C:\HyperTwist\UnrealHyperTwist\Source\UnrealHyperTwist\Public\HyperTwistCore\HyperTwistCoreLibrary.h`
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- `C:\HyperTwist\UnrealHyperTwist\Source\UnrealHyperTwist\Public\HyperTwistCore\HyperTwistCoreTypes.h`
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- `C:\HyperTwist\UnrealHyperTwist\Source\UnrealHyperTwist\Private\HyperTwistCore\HyperTwistCoreLibrary.cpp`
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- `C:\HyperTwist\UnrealHyperTwist\Source\UnrealHyperTwist\Tests\HyperTwistMelindaBound1CoreTest.cpp`
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- `C:\HyperTwist\UnrealHyperTwist\Source\UnrealHyperTwist\Tests\HyperTwistMelindaBound2CoreTest.cpp`
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- `C:\HyperTwist\UnrealHyperTwist\Source\UnrealHyperTwist\Tests\HyperTwistMelindaBound3CoreTest.cpp`
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- `C:\HyperTwist\UnrealHyperTwist\Source\UnrealHyperTwist\Tests\HyperTwistMelindaBound4CoreTest.cpp`
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## Slice-local verdict
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| Slice | Primary authority | Secondary value kept | Route | Width | Result |
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| --- | --- | --- | --- | --- | --- |
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| 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 |
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| 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 |
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| 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 |
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## Why no product-code reopening is required
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### `HactarCE/2x2x2x2-Scrambler`
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The donor still owns the narrow Melinda micro-domain center of gravity:
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- compact Melinda state encoding
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- legality, parity, handedness, and twist conservation rules
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- move-family semantics and exact application behavior
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- solvable random-state generation
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- flat debug or teaching projection
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That retained slice remains correct. It does not widen into a general hyper
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runtime, trainer shell, or broader `4D` application owner.
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### Landed first-party owner lane
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The first-party owner lane is already live and closed in current code:
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- public owner surfaces exist in `HyperTwistCoreLibrary.h` and
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`HyperTwistCoreTypes.h`
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- first-party state validation is exposed through
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`UHyperTwistCoreLibrary::ValidatePuzzleState`
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- first-party Melinda scramble-packet construction is exposed through
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`BuildMelindaScramblePacketFromGeneratedState` and
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`BuildMelindaScramblePacketFromTransformSequence`
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- first-party flat projection is exposed through `BuildMelindaFlatProjection`
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- the repo-local reconciled note already records `Bounds 1-4 closed`
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- focused automation exists for all four Melinda bounds
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That means the same-bound owner work is already landed. This pass does not find
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an owner-side gap that justifies reopening it.
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### Current adjacent owner boundaries
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The current adjacent-owner split is also still correct:
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- `Hyperspeedcube` remains the broader higher-dimensional runtime anchor
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- `magiccube4d` remains legacy `4D` reference context, not the owner of the
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narrow retained Melinda state or flat-projection slice
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- the Melinda lane stays a small owned core inside `HyperTwistCore`, not a new
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general runtime foundation
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Those boundaries do not need to be reopened for this lane.
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## Selective backfill result
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### Earlier packet reopened
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- `C:\HyperTwist\docs\HYPERTWIST_PHASE_0R_PACKET_0R_D_EVALUATION_2026-05-13.md`
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### Earlier standing note reopened
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- `C:\Workspaces\HyperTwist\clean-room-specs\hactarce-2x2x2x2-scrambler.model-a.md`
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### Manifest row reopened
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- `C:\Workspaces\HyperTwist\repos.manifest.json`
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### Additional canon reopened
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- `C:\HyperTwist\docs\REPO_LICENSE_TRACKING.md`
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- `C:\HyperTwist\docs\v6_5_deep_manual_pack\HyperTwist\FEATURE_REGISTRY.md`
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### Reason
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The landed lane itself was already correct. The stale part was the metadata:
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- the manifest row still preserved the older reset-era wording
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- the tracker still described the row mainly as a donor target instead of a
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closed landed owner slice
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- the feature registry did not explicitly record the Melinda bounded owner
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family in its current live form
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- the canonical `Model A` handoff needed an explicit landed-status reminder so
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future clean work does not accidentally reopen the closed bounds
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### Change class
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- repo-local extraction did not change
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- landed owner interpretation was confirmed rather than reversed
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- dependent canon was sharpened so the lane stays narrow and clearly closed
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- no product-code change occurred
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### What remained valid
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- the restrictive `GPL-3.0` clean-room route remained valid
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- the original `0R-D` decision to keep this lane narrow remained valid
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- the repo-local `Bounds 1-4 closed` conclusion remained valid
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### What changed
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The dependent canon now makes the current landed role explicit:
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- keep Melinda ownership inside `HyperTwistCore`
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- keep broader higher-dimensional runtime ownership with adjacent live lanes
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- keep `magiccube4d` as legacy reference context rather than a retained winner
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for this narrow slice
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- do not reopen the closed `Bound 1` through `Bound 4` sequence by default
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## Propagation result
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### Feature registry
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Updated.
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The registry now says what is actually live: first-party Melinda ownership is
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real for state legality, random-state generation, move-family application,
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scramble-packet construction, and flat debug or teaching projection behavior.
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### Cross-lane doctrine
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No doctrine wording change was needed.
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This pass applied the existing `A/R/F` hierarchy; it did not change the
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hierarchy rules themselves.
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### Skillization
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No doctrine or `SKILLS.md` change was needed.
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This pass did not create or reopen any command or skill surface.
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### Legal evidence
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No license-status or mirror-custody change occurred.
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The repo-row tracker, feature registry, manifest row, and canonical handoff
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status were sharpened instead.
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## Operational answer
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Before any future Melinda consumer shell, generalized `4D` widening, or broader
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higher-dimensional packet is considered, the correct move was this authority
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backfill first.
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After this pass:
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- do not reopen `Bound 1`, `Bound 2`, `Bound 3`, or `Bound 4`
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- do not reinterpret adjacent higher-dimensional reference context as a
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same-bound owner gap
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- if later work is justified, scope it as a new consumer-owner or widening
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packet above the closed Melinda owner lane
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@ -358,6 +358,17 @@ Integration call:
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- use it in `Phase 2R` to freeze the state format, solvability rules, move-family behavior, and debug-view acceptance criteria
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- refresh the Model A handoff with the fuller state, parity, and view findings
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- if later implementation proceeds, schedule Model B work in `Phase 5R`, not as direct donor use
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- current `2026-05-27` reconciliation overlay:
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- repo-local extraction unchanged
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- the first-party `HyperTwistCore` Melinda owner lane is now verified live
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and closed through `Bound 4`
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- the landed owner slice is narrow: state legality, move-family application,
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random-state generation, scramble-packet construction, and flat debug or
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teaching projection
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- keep broader higher-dimensional runtime ownership with adjacent live lanes
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and keep `magiccube4d` only as legacy reference context for this slice
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- do not reopen `Bound 1` through `Bound 4` by default; later work must be a
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new consumer-owner or widening packet if justified
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### `kash/cubedesk`
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@ -1742,6 +1742,16 @@ Approved working posture:
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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
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- Model B must not read the mirror
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- Model B may only consume `C:\Workspaces\HyperTwist\clean-room-specs\hactarce-2x2x2x2-scrambler.model-a.md`
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- current `2026-05-27` reconciliation overlay:
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- the bounded first-party `HyperTwistCore` Melinda owner lane is verified
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live and closed through `Bound 4`
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- the landed owner slice is state legality, random-state generation,
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move-family application, scramble-packet construction, and flat debug or
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teaching projection
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- keep broader higher-dimensional runtime ownership with adjacent live lanes
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and keep `magiccube4d` only as legacy reference context for this slice
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- do not reopen the closed owner lane by default; later work must be a new
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consumer-owner or widening packet if justified
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### `HactarCE/Hyperspeedcube`
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@ -153,6 +153,7 @@ repo.
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| 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. |
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| 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. |
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| 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. |
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| 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. |
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| 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. |
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| 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. |
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| Hyper puzzle catalog | Implemented now | `Hyperspeedcube` bounded packet | Current realized hyper-puzzle entry slice. |
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