# Edit a remix preset

> Change a remix preset's label and instruction. Send both. Call it only when the user asked for this in the conversation; never on your own initiative.

`remix.update_preset` · write

- **MCP tool:** `remix_update_preset`. Catalog: reach it with `find_actions` and `run_write_action`, or turn on the full toolset.
- **REST:** `POST /v1/remix/update-preset`
- **CLI:** `xholic remix update-preset`
- **Scope:** `write`
- **Plan:** Every plan, including the trial
- **Cost:** Free.
- **Rate limit bucket:** `write`

## Input

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `presetId` | string (uuid) | Yes |  |
| `label` | string ≤ 40 chars | Yes |  |
| `instruction` | string ≤ 500 chars | Yes |  |
| `account` | string ≤ 64 chars | No | X account to act on, as @handle. Leave it out to use the connection's default account. |
| `dryRun` | boolean | No | Return exactly what would happen without doing it. |
| `idempotencyKey` | string ≤ 200 chars | No | A unique key for this write. Repeating a call with the same key returns the first result instead of acting twice. |