# HyperTwist Phase 4 gameplay generated-mode selector option owned execution delivery-mode roster / allowed-mode retention preview surface packet

Created on `2026-05-08`

Status:

- first-party HyperTwist packet
- bounded Phase `4` gameplay-facing consumer slice

## Purpose

This packet closes the next thin gameplay-facing consumer seam above the panel-widget and session-actor generated-mode selector option owned execution deck-id / runtime-surface retention preview surface by exposing one parameterized owned execution delivery-mode roster / allowed-mode retention preview surface for a chosen selector id.

The open tasks were:

- stop forcing gameplay / Blueprint callers to rebuild retained deck delivery-mode rosters and effective case allowed-mode rosters just to explain what execution modality posture a chosen imported option would keep on execute
- expose direct covered-case modality retention plus generated owned-execution allowed-mode widening on the same thin consumer lane
- expose resulting effective allowed-mode posture without widening into backend execution behavior

It is not:

- a selector-dispatch behavior change
- a generated-mode launch-request persistence behavior change
- a generated-mode execution deck synthesis change
- a broader gameplay UI composition pass

## Scope

Bounded lane:

- add first-party owned execution delivery-mode roster / allowed-mode retention preview surfaces in shared training types
- add a coach-library helper that projects retained deck delivery modes plus effective allowed-mode rosters over the already-landed launch-request preview surface and active run state
- expose that parameterized modality-roster preview surface on `HyperTwistTrainingPanelWidget` and `HyperTwistTrainingSessionActor`
- keep the derivation presentation-only and rooted in the already-owned selector/runtime/request surfaces

Out of scope:

- changing selector-choice apply behavior
- changing stored launch-request creation, refresh, or execute behavior
- changing generated-mode execution deck synthesis
- widening into dashboard-only or broader gameplay composition work

## Why this was the right next packet

Before this slice:

- gameplay-facing panel/session consumers already exposed truthful owned case identity, prompt presentation, execution modality, execution scope, provenance posture, deck-title / selection-policy posture, and deck-id / runtime-surface retention for imported selector options
- callers could tell what owned execution would run, how it would present, and what execution container/runtime identity it would keep

But one thin consumer seam was still open:

- callers still had to reconstruct retained deck delivery-mode rosters, case allowed-mode fallback semantics, and the generated owned-execution rule that widens the allowed roster with the execute delivery mode if they wanted to explain resulting execution-modality posture

That meant:

- single-mode execution preview was already thin and reusable
- but roster-level deck/case modality posture still leaked generated deck composition rules into callers

So the next bounded move was:

- keep the already-landed owned execution deck-id / runtime-surface retention preview surface unchanged in behavior
- reuse the already-cached launch-request preview surface and active run state to expose one narrow owned execution delivery-mode roster / allowed-mode retention preview surface above it

## What landed

Primary code changes:

- `UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistTraining/HyperTwistTrainingTypes.h`
  - added `FHyperTwistTrainingCoachGeneratedModeSelectorOptionOwnedExecutionDeliveryModeRosterAllowedModeRetentionPreviewEntrySurface`
  - added `FHyperTwistTrainingCoachGeneratedModeSelectorOptionOwnedExecutionDeliveryModeRosterAllowedModeRetentionPreviewSurface`
- `UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistTraining/HyperTwistTrainingCoachLibrary.h`
- `UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistTraining/HyperTwistTrainingCoachLibrary.cpp`
  - added `DeriveCoachGeneratedModeSelectorOptionOwnedExecutionDeliveryModeRosterAllowedModeRetentionPreviewSurface(...)`
  - delivery-mode roster / allowed-mode retention preview is derived from cached run state plus the already-landed launch-request preview surface
- `UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistTraining/HyperTwistTrainingPanelWidget.h`
- `UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistTraining/HyperTwistTrainingPanelWidget.cpp`
  - added `GetDisplayedCoachGeneratedModeSelectorOptionOwnedExecutionDeliveryModeRosterAllowedModeRetentionPreviewSurface(const FString& SelectorId)`
- `UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistTraining/HyperTwistTrainingSessionActor.h`
- `UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistTraining/HyperTwistTrainingSessionActor.cpp`
  - added `GetDisplayedCoachGeneratedModeSelectorOptionOwnedExecutionDeliveryModeRosterAllowedModeRetentionPreviewSurface(const FString& SelectorId)`

Surface behavior:

- reports exact retained active-deck delivery-mode rosters for both direct covered-case starts and generated owned-execution paths
- reports exact covered-case allowed-mode rosters when direct covered cases explicitly restrict delivery modes
- reports direct covered-case fallback to the retained active deck delivery roster when the covered case imposes no additional delivery-mode restriction
- reports exact generated owned-execution allowed-mode rosters, including the bounded clean-room rule that falls back to the active deck delivery roster when the seed case has no explicit allowed modes and then `AddUnique`s the execute delivery mode
- distinguishes generated choices whose execute delivery mode actually widens the retained allowed-mode roster from those whose execute mode was already present
- keeps unresolved or payload-invalid choices inspectable as blocked modality-roster preview states instead of collapsing them into a generic unavailable branch
- keeps the surface presentation-only and compatible with the already-landed launch / execution, request-alignment, stored-request delta, launch-request payload / refresh-preview, launch-request metadata / origin-notes preview, launch-request envelope / request-source preview, owned execution case / canonical-state preview, owned execution prompt preview, owned execution delivery preview, owned execution scope preview, owned execution provenance preview, owned execution deck-title / selection-policy preview, and owned execution deck-id / runtime-surface retention preview surfaces

## Validation

Validation target:

- full `Development Editor|Win64` build of `C:\HyperTwist\UnrealHyperTwist\UnrealHyperTwist.sln`

Result:

- passed with `0` warnings and `0` errors

## Follow-on

The next bounded packet on this same gameplay-facing consumer lane should stay thin and expose one generated-mode selector option owned execution real-scramble / virtual-cube / smart-cube capability retention preview surface so callers can render retained deck capability posture for a chosen option without rebuilding generated deck composition rules directly.
