## Update a worker template

**patch** `/api/workers/{workerId}`

Update a worker's instructions, title, summary, visibility, or output schema. Only the fields you send are changed; omitted fields keep their current values. Only the worker creator can update a worker.

### Path Parameters

- `workerId: string`

### Body Parameters

- `instructions: optional string`

  Replaces the persistent system prompt. Subsequent tasks pick up the new instructions immediately; in-flight tasks keep using the previous version.

- `outputSchema: optional map[unknown]`

  Replace the worker's structured output schema. Pass `null` to clear it and return to free-form text responses.

- `summary: optional string`

  Replaces the worker's short one-line summary.

- `title: optional string`

  New display name for the worker.

- `visibility: optional "public" or "private"`

  Change visibility between `public` (any org member can run tasks) and `private` (only invited members).

  - `"public"`

  - `"private"`

### Returns

- `WorkerTemplate object { id, createdAt, instructions, 8 more }`

  - `id: string`

  - `createdAt: string`

  - `instructions: string`

  - `organizationId: string`

  - `outputSchema: map[unknown]`

  - `summary: string`

  - `title: string`

  - `updatedAt: string`

  - `url: string`

    Web URL of the worker in the Handinger dashboard.

  - `userId: string`

  - `visibility: "public" or "private"`

    - `"public"`

    - `"private"`

### Example

```http
curl https://handinger.com/api/workers/$WORKER_ID \
    -X PATCH \
    -H 'Content-Type: application/json' \
    -H "Authorization: Bearer $HANDINGER_API_KEY" \
    -d "{
          \"instructions\": \"You are a brand voice analyzer. Read the input text and report whether it matches Acme's playful, plain-spoken house style. Quote specific phrases.\",
          \"outputSchema\": {
            \"type\": \"bar\",
            \"required\": \"bar\",
            \"properties\": \"bar\"
          },
          \"summary\": \"Audits copy against the Acme brand voice guide.\",
          \"title\": \"Claim verdict v2\",
          \"visibility\": \"private\"
        }"
```

#### Response

```json
{
  "id": "id",
  "createdAt": "createdAt",
  "instructions": "instructions",
  "organizationId": "organizationId",
  "outputSchema": {
    "foo": "bar"
  },
  "summary": "summary",
  "title": "title",
  "updatedAt": "updatedAt",
  "url": "https://v3.handinger.com/worker/wrk_vk81XUHKHG-qr4",
  "userId": "userId",
  "visibility": "public"
}
```