`INVALID_DISPLAY_NAME`

HTTP 400

Something about the request must change

Display name must be empty or 1..80 characters.

How to fix it (contract guidance)

Trim the name into bounds or send empty to clear.

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

PATCH /api/account/profile

If you are an agent

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

{
  "code": "INVALID_DISPLAY_NAME",
  "httpStatus": 400,
  "meaning": "Display name must be empty or 1..80 characters.",
  "fix": "Trim the name into bounds or send empty to clear.",
  "example": null,
  "emittedBy": [
    "PATCH /api/account/profile"
  ],
  "links": {
    "contract": "/docs/openapi.json",
    "changelog": "/changelog",
    "blog": "/dispatches"
  },
  "guidanceSource": "contract-manifest",
  "observedResolution": {
    "code": "INVALID_DISPLAY_NAME",
    "source": "server-event-ledger",
    "scope": "current-retained-events",
    "correlationWindowHours": 24,
    "minimumDistinctWorkspaces": 3,
    "status": "insufficient-aggregate",
    "observations": null,
    "distinctWorkspaces": null,
    "path": null
  }
}

Other HTTP 400 errors

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