# HyperTwist Phase 4 runtime-library generated-mode selector option stored-request delta and launch-request preview 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 request-delta preview contracts above the already-landed selector option request-alignment surface.

## Why this packet exists

The prior runtime-library packet let world-context callers explain direct-start versus stored-request versus refresh-required versus blocked execute posture and preview stored-request alignment.

But callers still had to inspect raw selector-choice arrays and rebuilt launch-config details if they needed to explain:

- how the hypothetical selector state differs from the current selector state
- how the hypothetical selector state differs from the stored request
- how the current selector state differs from the stored request
- what the resulting generated-mode launch-request payload and refresh posture would be

That kept the runtime-library world-context seam behind the already-landed panel-widget and session-actor selector option stored-request delta and launch-request preview display-contract lane.

## What changed

- added `GetActiveTrainingCoachGeneratedModeSelectorOptionStoredRequestDeltaSurface()`
- added `GetActiveTrainingCoachGeneratedModeSelectorOptionLaunchRequestPreviewSurface()`
- derived the stored-request delta surface from the active run state, selected `SelectorId`, and the already-landed runtime-library selector option-menu, selector option dispatch, and selector option request-alignment surfaces
- derived the launch-request preview surface from that same active run state and `SelectorId` over the runtime-library selector option-menu, selector option dispatch, and selector option request-alignment 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 current-vs-hypothetical-vs-stored selector delta posture
- the truthful resulting generated-mode launch-request payload preview

without reading raw selector-choice arrays or rebuilt launch-config 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 next aligned pair inside that lane would be the runtime-library generated-mode selector option launch-request metadata preview and launch-request envelope preview surfaces, because those are the next truthful launch-request provenance and envelope contracts above the newly-landed launch-request preview surface.
