---
phase: "04"
plan: "04-01"
created: 2026-01-01
---
<!-- provenance: template-derived (gsd-core/templates/). NOT real-user-sourced. See #2371 — adequate for happy-path/sequence scenarios, NOT sufficient as a negative fixture asserting the engine correctly rejects input. -->

# Plan 04-01: Post-Rollover Feature

## Tasks

- [ ] Implement the post-rollover feature
- [ ] Cover it with a plan-scoped test