# HyperTwist Phase 6R-J roice3/MagicCube5D runtime profile and persistence implementation packet

Created on `2026-05-22`

## Status

- first-party HyperTwist packet
- bounded permissive `Phase 6R-J` implementation slice

## Purpose

This packet lands the first narrower bounded slice from the retained `roice3/MagicCube5D`
hyper-engine row.

The landed slice is:

- first-party dedicated `5D` family runtime-profile and persistence boundary

It is not:

- a broad hyper-runtime platform packet
- a renderer or viewer-shell packet
- a generalized topology packet
- a generic notation or replay packet
- a broad macro/tutorial shell packet

## Current authority basis

This implementation packet stands on:

- `docs/REPO_LICENSE_TRACKING.md`
- `docs/ops/HYPERTWIST_CROSS_LANE_AUTHORITY_HIERARCHY_AND_RECONCILIATION_2026-05-20.md`
- `docs/arch/HYPERTWIST_PHASE6R_J_MAGICCUBE5D_RUNTIME_PROFILE_AND_PERSISTENCE_PREPARATION_PACKET_2026-05-22.md`

The retained owner remains:

- `roice3/MagicCube5D`

The top-level runtime-anchor owner does not change here:

- first-party HyperTwist with the retained `Hyperspeedcube` runtime anchor remains the broader
  runtime owner
- this packet keeps `roice3/MagicCube5D` bounded to the narrower `A1 / R1 / F2` dedicated `5D`
  runtime-profile and persistence slice

## Landed scope

The current code now owns a retained `MagicCube5D` contract through:

- a dedicated first-party `UHyperTwistTrainingMagicCube5DLibrary`
- retained package references for:
  - family core
  - settings defaults
  - state transformer
  - loader
  - twist encoding
- one bounded runtime-profile contract for:
  - order-parametric `5D` family sizing
  - ten-face signed-axis state semantics
  - click-derived twist selection
  - fifth-axis view rotation
  - solved-progress telemetry
- one bounded persistence boundary for:
  - `MagicCube5D Version1` header semantics
  - serialized ten-face state matrix
  - compact twist-token history
  - macro-sidecar persistence
- one bounded donor-attribution boundary
- runtime-library accessors and package-checklist export through:
  - `UHyperTwistTrainingRuntimeLibrary`
- focused automation coverage in:
  - `HyperTwistMagicCube5DPhase6RJRuntimeProfileContractTest.cpp`

## Why this is still intentionally bounded

This packet lands a specialized family donor seam, but it does not widen into neighboring retained
families or broader product ownership.

Still deferred:

- WinForms/OpenGL host-shell ownership
- stereo/anaglyph renderer ownership
- generic hyper-runtime ownership
- generic notation or replay ownership
- broad macro/tutorial shell widening
- broader `Hyperspeedcube` deepening beyond the next bounded packet

## Validation

Build validation:

- `Build.bat UnrealHyperTwistEditor Win64 Development -Project='C:\HyperTwist\UnrealHyperTwist\UnrealHyperTwist.uproject' -WaitMutex -NoHotReloadFromIDE`

Focused automation validation:

- `Automation RunTests HyperTwist.Permissive.MagicCube5D.Phase6R.J`

Regression automation validation:

- `Automation RunTests HyperTwist.Permissive.Magic120Cell.Phase6R.I`
- `Automation RunTests HyperTwist.Permissive.MagicTile.Phase6R.D`
- `Automation RunTests HyperTwist.Permissive.Hyperspeedcube.Phase6R.A`
- `Automation RunTests HyperTwist.CleanRoom.CubeDesk`

Expected covered tests:

- `RuntimeProfile`
- `PersistenceBoundary`
- `PackageChecklist`
- existing `Magic120Cell`, `MagicTile`, `Hyperspeedcube`, and `CubeDesk` regression suites

## Queue effect

This packet consumes the current `Phase 6R-J` implementation slice.

`roice3/MagicCube5D` remains only partially incorporated:

- landed now:
  - dedicated `5D` family runtime profile
  - order and interaction taxonomy
  - solved-progress telemetry contract
  - persistence, twist-history, and macro-sidecar boundary
  - direct-donor attribution boundary
- still deferred:
  - WinForms/OpenGL host shell
  - stereo/anaglyph renderer ownership
  - generic hyper-runtime ownership
  - generic notation or replay ownership
  - broad macro/tutorial shell widening

The next clean move is:

- source-backed `Phase 6R-K` `HactarCE/Hyperspeedcube` notation/serialization preparation/control
  pass

Keep the future sequencing guards visible:

- `roice3/MagicCube5D`
  - keep the landed slice bounded to the dedicated `5D` family lane rather than a broad
    host-shell or renderer packet
- `HactarCE/Hyperspeedcube`
  - keep the next widening slice bounded to notation/serialization rather than reopening the whole
    deferred runtime-anchor remainder in one packet
