# HyperTwist Phase 4 gameplay generated-mode selector option owned execution split-phase detail 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 timing-policy retention preview surface by exposing one parameterized owned execution split-phase detail retention preview surface for a chosen selector id.

The open tasks were:

- stop forcing gameplay / Blueprint callers to rebuild timing-policy normalization rules just to inspect the normalized split-phase order and labels a chosen imported option would keep on execute
- expose direct covered-case split-phase detail retention and generated owned-execution split-phase detail retention on the same thin consumer lane
- expose per-phase normalized order and label detail 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 split-phase detail retention preview surfaces in shared training types
- add a coach-library helper that projects normalized split-phase order and labels over the already-landed timing-policy retention preview surface and active run state
- expose that parameterized split-phase detail retention 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 container posture, retained runtime-surface identity, retained delivery-mode posture, retained deck capability posture, and retained timing-policy posture for imported selector options
- callers could already tell whether a chosen option kept inspection, penalty, running-time visibility, and any split-phase posture

But one thin consumer seam was still open:

- callers still had to reconstruct normalized split-phase order and labels from timing-policy normalization behavior if they wanted to inspect the exact retained phase detail for a chosen option

That meant:

- timing-policy summary preview was already thin and reusable
- but per-phase normalized detail still leaked timing-policy normalization rules into callers

So the next bounded move was:

- keep the already-landed owned execution timing-policy retention preview surface unchanged in behavior
- reuse that timing-policy preview as the exact/blocked/unavailable option-state baseline and expose one narrow split-phase detail surface above it

## What landed

Primary code changes:

- `UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistTraining/HyperTwistTrainingTypes.h`
  - added `FHyperTwistTrainingCoachGeneratedModeSelectorOptionOwnedExecutionSplitPhaseDetailRetentionPreviewPhaseEntrySurface`
  - added `FHyperTwistTrainingCoachGeneratedModeSelectorOptionOwnedExecutionSplitPhaseDetailRetentionPreviewEntrySurface`
  - added `FHyperTwistTrainingCoachGeneratedModeSelectorOptionOwnedExecutionSplitPhaseDetailRetentionPreviewSurface`
- `UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistTraining/HyperTwistTrainingCoachLibrary.h`
- `UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistTraining/HyperTwistTrainingCoachLibrary.cpp`
  - added `DeriveCoachGeneratedModeSelectorOptionOwnedExecutionSplitPhaseDetailRetentionPreviewSurface(...)`
  - split-phase detail preview is derived from cached run state plus the already-landed timing-policy retention preview surface and uses the normalized active-deck timing policy
- `UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistTraining/HyperTwistTrainingPanelWidget.h`
- `UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistTraining/HyperTwistTrainingPanelWidget.cpp`
  - added `GetDisplayedCoachGeneratedModeSelectorOptionOwnedExecutionSplitPhaseDetailRetentionPreviewSurface(const FString& SelectorId)`
- `UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistTraining/HyperTwistTrainingSessionActor.h`
- `UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistTraining/HyperTwistTrainingSessionActor.cpp`
  - added `GetDisplayedCoachGeneratedModeSelectorOptionOwnedExecutionSplitPhaseDetailRetentionPreviewSurface(const FString& SelectorId)`

Surface behavior:

- reports exact normalized retained split-phase order and labels for direct covered-case starts
- reports exact normalized retained split-phase order and labels for generated owned-execution paths
- keeps reusable stored-request cases and refresh-required generated cases exact because execute still retains the same normalized split-phase detail even when request refresh is required
- exposes per-phase order and label detail in a structured `PhaseEntries` surface plus option-level summary lines
- keeps unresolved or payload-invalid choices inspectable as blocked split-phase detail 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, owned execution deck-id / runtime-surface retention preview, owned execution delivery-mode roster / allowed-mode retention preview, owned execution deck capability retention preview, and owned execution timing-policy 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 split-phase phase-id / label-fallback provenance preview surface so callers can distinguish explicit labels from phase-id fallback without rebuilding timing-policy normalization rules directly.
