# HyperTwist Phase 4 carryover review action-plan resumption continuity packet

Created on `2026-05-07`

Status:

- first-party HyperTwist packet
- bounded Phase `4` coach-to-review validation slice

## Purpose

This packet preserves coach action-plan continuity when an idle carryover review plan resumes after `ClearActiveRun()`.

The open tasks are:

- stop dropping the rehydrated coach action-plan lineage when `StartRecommendedReviewRun()` resumes a stored carryover review plan from idle state
- make the resumed carryover review session own a fresh active coach action plan tied to the resumed session so closure and outcome history advance truthfully

It is not:

- a new review-plan persistence packet
- a new queue-state packet
- a broader coach-brief redesign
- a dashboard command-surface rewrite

## Scope

Bounded lane:

- snapshot the stored review plan, coach briefs, and carry-forward action plan before `StartTrainingRunFromDeck()` clears transient coach state
- derive a carryover-review resume brief from the stored review plan, carried-forward action-plan lineage, and resumed review deck
- build, activate, and upsert a new coach action plan for the resumed carryover review session after the run launches
- keep the existing stored review-plan resumption path and true-idle closure behavior intact

Out of scope:

- changing review-plan scoring or completion rules
- changing queue execution ordering
- rewriting coach memory derivation
- widening into unrelated template analytics work

## Why this was the right next packet

Before this slice:

- post-clear action-plan rehydration was already landed
- post-clear review-plan resumption was already landed
- the subsystem could inspect and relaunch a stored carryover review plan from idle state

But one continuity seam still remained:

- `StartTrainingRunFromDeck()` correctly clears transient coach state before any new run
- the idle carryover review resumption path restored the stored review plan afterward
- but it did not attach a new active coach action plan to the resumed review session

That meant:

- carryover review execution could resume correctly
- while the resumed session itself no longer owned the action-plan lineage that downstream closure, outcome, and follow-up reconstruction expect

So the next honest move was:

- keep the stored review-plan resumption path
- and immediately rebuild a fresh active coach action plan for the resumed carryover review session from the carried-forward lineage

## What landed

Primary code changes:

- `UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistTraining/HyperTwistTrainingSubsystem.cpp`
  - added `BuildCarryoverReviewResumeBrief(...)` to rebuild a truthful resume brief from stored review-plan state, carried-forward action-plan lineage, and the relaunched review deck
  - `StartRecommendedReviewRun()` now snapshots the stored coach briefs and carried-forward action plan before launching the resumed carryover review run
  - after launch, it builds `coach_carryover_review_<session>` as a fresh action plan, activates it against the resumed session id, upserts it into repository state, and then refreshes repository views

## Product effect

The post-clear carryover lane is now more truthful:

- resumed carryover review runs keep a live coach action plan instead of silently dropping action-plan lineage at the relaunch boundary
- resumed-session closure and outcome history now attach to the resumed review session rather than relying only on stale pre-resume plan context
- follow-up and idle reconstruction after the resumed review can keep using the correct carry-forward lineage until carryover is genuinely exhausted

## Acceptance criteria

- when an idle stored carryover review plan resumes, the subsystem creates a fresh active coach action plan if a carried-forward plan lineage exists
- that resumed action plan preserves parent/root review lineage and review focus context
- repository state stores the resumed action plan before the final repository refresh
- full product build succeeds

## Validation checklist

1. build `UnrealHyperTwist.sln` / `UnrealHyperTwistEditor`
2. confirm idle `StartRecommendedReviewRun()` snapshots stored coach action state before `StartTrainingRunFromDeck()` clears it
3. confirm resumed carryover review launch builds and activates `coach_carryover_review_<session>`
4. confirm the resumed action plan preserves carry-forward lineage while using the resumed session id as the active source session
5. confirm no broader queue/dashboard redesign was reopened

## Validation result

- full `Development Editor|Win64` build succeeded on `2026-05-07`

## Next bounded follow-on slice

- continue the same recognition-assisted coach-to-review closure validation pass from resumed carryover completion through final carryover consumption, review-program exhaustion, and truthful idle dashboard closure, and land only the next continuity fix that pass exposes
