`REWIND_VERSION_MISMATCH`

HTTP 409

Something about the request must change

The board changed after the preview and before the rewind confirmation.

How to fix it (contract guidance)

Preview again and retry only against the current fingerprint.

Observed recovery

Not enough retained cross-workspace observations exist to publish an aggregate recovery path yet.

Publication requires at least 3 distinct workspaces. This is withheld data, not evidence that no recovery happened.

Raised by

POST /api/account/rewind

If you are an agent

The same facts, structured. Do not infer the fix from the prose above — use this.

{
  "code": "REWIND_VERSION_MISMATCH",
  "httpStatus": 409,
  "meaning": "The board changed after the preview and before the rewind confirmation.",
  "fix": "Preview again and retry only against the current fingerprint.",
  "example": null,
  "emittedBy": [
    "POST /api/account/rewind"
  ],
  "links": {
    "contract": "/docs/openapi.json",
    "changelog": "/changelog",
    "blog": "/dispatches"
  },
  "guidanceSource": "contract-manifest",
  "observedResolution": {
    "code": "REWIND_VERSION_MISMATCH",
    "source": "server-event-ledger",
    "scope": "current-retained-events",
    "correlationWindowHours": 24,
    "minimumDistinctWorkspaces": 3,
    "status": "insufficient-aggregate",
    "observations": null,
    "distinctWorkspaces": null,
    "path": null
  }
}

Other HTTP 409 errors

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