# HyperTwist Phase 4 runtime-library generated-mode selector roster and option-menu 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 generated-mode selector display contracts above the already-landed selector/application context surface.

## Why this packet exists

The prior runtime-library packet let world-context callers explain generated-mode request posture, execution readiness, selector coverage, and stored-request refresh posture.

But callers still had to inspect raw imported selector arrays and cached selector-choice payloads if they needed to explain:

- which selectors are currently unresolved
- which unresolved selectors still expose imported options
- what the selected value is for one selector
- which option entries are currently available for a chosen selector

That kept the runtime-library world-context seam behind the already-landed panel-widget and session-actor selector roster and option-menu display-contract lane.

## What changed

- added `GetActiveTrainingCoachGeneratedModeSelectorRosterSurface()`
- added `GetActiveTrainingCoachGeneratedModeSelectorOptionMenuSurface()`
- derived the selector roster surface from the active run deck, active imported runtime selection state, and the already-landed runtime-library selector/application context surface
- derived the selector option-menu surface from that same active run deck and imported runtime selection state, keyed by `SelectorId`, over the runtime-library selector roster surface
- 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 active selector roster posture
- the truthful per-selector imported option-menu posture

without reading raw selector arrays, selector-choice payloads, selected values, or per-option imported metadata 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 next aligned pair inside that lane would be the runtime-library generated-mode selector option actionability and selector option dispatch surfaces, because those are the next truthful selector-interaction contracts above the newly-landed selector option-menu surface.
