# enhance-dev person update-display-name ```text enhance-dev person update-display-name [options] ``` ## Arguments This command takes no positional arguments. ## Options | Option | Required | Default | Meaning | | --- | --- | --- | --- | | `--display-name ` | Yes | None | Name to show for the current person in comments and collaboration surfaces. | | `--json ` | No | None | Complete procedure input as JSON; do not combine it with field flags. | | `--client-token ` | No | None | Stable UUID to reuse when retrying the exact same mutation. | ## Input This command presents the capability `person.updateDisplayName`. It has write effect and single idempotency.

Show complete input JSON Schema

```json {"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","properties":{"displayName":{"type":"string","minLength":1,"maxLength":120}},"required":["displayName"]} ```

## Output This command writes JSON records to standard output. Returns a typed person.updateDisplayName result from the Enhance API without transport-specific prose.

Show complete output JSON Schema

```json {"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","properties":{"person":{"type":"object","properties":{"id":{"type":"string","format":"uuid","pattern":"^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$"},"preparedCanvasId":{"type":"string","format":"uuid","pattern":"^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$"},"displayName":{"type":"string","minLength":1,"maxLength":120},"initials":{"type":"string","minLength":1,"maxLength":4},"avatarUrl":{"anyOf":[{"type":"string","maxLength":2048},{"type":"null"}]},"email":{"anyOf":[{"type":"string","maxLength":254},{"type":"null"}]},"createdAt":{"type":"string","format":"date-time","pattern":"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$"}},"required":["id","preparedCanvasId","displayName","initials","avatarUrl","email","createdAt"],"additionalProperties":false}},"required":["person"],"additionalProperties":false} ```

## Examples ```bash enhance-dev person update-display-name --display-name ```

Show example input

```json { "displayName": "x" } ```

Show example output

```json { "person": { "id": "00000000-0000-4000-8000-000000000010", "preparedCanvasId": "00000000-0000-4000-8000-000000000010", "displayName": "x", "initials": "x", "avatarUrl": "x", "email": "x", "createdAt": "2026-08-10T00:00:00.000Z" } } ```

## Exit behaviour | Exit code | Meaning | | --- | --- | | `0` | The command succeeded. | | `1` | The command failed for another reason (`INTERNAL`). A write may have an unknown outcome. | | `2` | The command line was malformed. Nothing ran. | | `3` | The API refused the input (`BAD_REQUEST`). | | `4` | The credential is missing or expired (`UNAUTHORIZED`). | | `5` | The API refused the request (`FORBIDDEN`, `NOT_FOUND`, `CONFLICT`, `RATE_LIMITED`). | | `6` | A batch finished only in part. Retry with the same `--client-token`. | ## Versions Minimum tested versions: Enhance CLI and MCP runtime 0.1.40, plugin 1.0.38, Node.js 24. No older floor is published.