# HyperTwist Phase J-A replay integrity and validation benchmark foundations implementation packet

## Status

`Phase J-A` is now landed locally as the first bounded HyperTwist-native
validation and benchmarking slice.

## Landed surfaces

- replay-integrity contract
- puzzle-state validation contract
- benchmark-profile boundary
- validation-scorecard contract

## Code

- bundle and validation/benchmark contract structs in
  `UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistTraining/HyperTwistTrainingValidationBenchmarkLibrary.h`
- bundled contract data and query functions in
  `UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistTraining/HyperTwistTrainingValidationBenchmarkLibrary.cpp`
- runtime accessors in
  `UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistTraining/HyperTwistTrainingRuntimeLibrary.h`
  and
  `UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistTraining/HyperTwistTrainingRuntimeLibrary.cpp`
- focused automation in
  `UnrealHyperTwist/Source/UnrealHyperTwist/Tests/HyperTwistValidationPhaseJABenchmarkFoundationContractTest.cpp`

## Boundaries preserved

- keep the lane first-party and runtime-evidence local
- do not widen into public leaderboards
- do not widen into cross-product telemetry or enterprise QA dashboards
- do not widen into release-gate authority or donor benchmark ownership

## Canon result

- `Phase J-A` is now the first deliberate validation and benchmarking milestone
  landed in current code
- the then-next deliberate seam, `Phase J-B` regression snapshots and
  cross-run benchmark deltas, is now also landed
