# HyperTwist Phase 4 runtime-library generated-mode selector option owned-execution split-phase current-selection merged ordered roster lookup inspect surface packet

- bounded Phase `4` runtime-consumer slice
- date: `2026-05-09`

## Intent

Stay on the deliberate `UHyperTwistTrainingRuntimeLibrary` world-context consumer lane and expose the next truthful owned-execution retained split-phase current-selection merged ordered roster lookup inspect contracts above the already-landed label-provenance partition summary, roster-pair, and merged ordered roster inspect surfaces.

## Why this packet exists

The prior runtime-library packet let world-context callers inspect:

- the label-provenance partition summary
- the explicit-versus-fallback roster pairing
- the merged retained ordered provenance roster

But callers still had to scan the merged ordered roster array if they needed to inspect one retained row directly by:

- phase id
- normalized order
- evaluation order

That kept the runtime-library world-context seam behind the already-landed panel-widget and session-actor merged ordered roster lookup inspect lane.

## What changed

- added `GetActiveTrainingCoachGeneratedModeSelectorOptionOwnedExecutionSplitPhaseCurrentSelectionLabelProvenancePartitionMergedOrderedRosterPhaseIdLookupInspectSurface()`
- added `GetActiveTrainingCoachGeneratedModeSelectorOptionOwnedExecutionSplitPhaseCurrentSelectionLabelProvenancePartitionMergedOrderedRosterNormalizedOrderLookupInspectSurface()`
- added `GetActiveTrainingCoachGeneratedModeSelectorOptionOwnedExecutionSplitPhaseCurrentSelectionLabelProvenancePartitionMergedOrderedRosterEvaluationOrderLookupInspectSurface()`
- derived all three surfaces from the active run state, selected `SelectorId`, and the already-landed runtime-library selector option-menu and launch-request preview surfaces
- kept the runtime-library lane purely compositional over already-cached coach/generated-mode state without reopening backend derivation

## Files

- `C:\HyperTwist\UnrealHyperTwist\Source\UnrealHyperTwist\Public\HyperTwistTraining\HyperTwistTrainingRuntimeLibrary.h`
- `C:\HyperTwist\UnrealHyperTwist\Source\UnrealHyperTwist\Private\HyperTwistTraining\HyperTwistTrainingRuntimeLibrary.cpp`
- `C:\HyperTwist\docs\HYPERTWIST_ROADMAP_OVERHAUL_EXPANSION_GUIDE.md`

## Outcome

World-context gameplay and Blueprint callers can now ask the runtime library for:

- the truthful owned-execution split-phase current-selection merged ordered roster phase-id lookup inspect surface for one selector option
- the truthful owned-execution split-phase current-selection merged ordered roster normalized-order lookup inspect surface for one selector option
- the truthful owned-execution split-phase current-selection merged ordered roster evaluation-order lookup inspect surface for one selector option

without scanning the merged roster array or reading downstream inspect derivation details directly.

## Validation

- full `Development Editor | Win64` MSBuild on `UnrealHyperTwist.sln`

## Next clean slice

Stay on this runtime-library consumer lane only if a real world-context caller still needs one more thin derived coach/generated-mode display contract or displayed-action convenience helper over already-cached state. The merged ordered roster inspect family is now complete through direct row lookup surfaces, so the next clean move should pivot deliberately to the next roadmap lane instead of extending runtime-consumer widening by drift.
