# HappyX JSON Rollback Dry Run

Updated: 2026-05-22T22:15:58.053Z

## Purpose

This dry run creates a private temporary JSON rollback export from the current production-shaped state, selects the newest rollback candidate, restores it into memory and compares public-safe counts and fingerprints. The raw export is not published.

## Selection

- Candidate snapshots: 1
- Selected snapshot: current-json-state
- Selection rule: newest created timestamp
- Export privacy: temporary private artifact removed after validation

## Counts

| Area | Source rows | Restored rows |
| --- | ---: | ---: |
| Events | 78 | 78 |
| Tasks | 63 | 63 |
| Sessions | 2 | 2 |
| Permissions | 6 | 6 |
| Approval ledger rows | 0 | 0 |
| Agent runs | 19 | 19 |
| Artifacts | 17 | 17 |
| Review checkpoints | 5 | 5 |

## Checks

- Private export created: pass
- Selected candidate readable: pass
- Table counts match: pass
- State fingerprint matches: pass
- Public projection redaction: pass
- Production state unchanged: pass
- Private export removed: pass

## Fingerprints

- Source: d83085ffe0535bca
- Restored: d83085ffe0535bca

## Decision

The current JSON state can be exported, selected and restored in the dry-run rollback path.

## Follow-up

- Add operator-visible rollback snapshot retention before any storage switch.
- Add an authenticated restore command that requires explicit snapshot selection.
- Keep public rollback reports limited to counts, checks and short fingerprints.