# Guard methods: update, delete

URL: /code/sdk/guard/records-update · Id: `page:code/sdk/guard/records-update`

> The Guard Verbs update, delete as typed SDK methods, with inputs, result, refusals and an example.

Reference for [Guard](/business/nouns/guard), one group of [Guard methods](/code/sdk/guard).

### Guard.update
Changes the given properties of a Guard. [Verb page](/business/nouns/guard/update?interface=sdk).

```ts
interface GuardVerbs {
  update(input: GuardUpdateInput, options?: SB.CallOptions): SB.Call<Guard>
}
```

Emits `Guard.updated`.

**Inputs**

| Input | Type | Required | Description |
| --- | --- | --- | --- |
| `id` | `string` | Yes | The id of the Guard. |
| `tier` | `string` | No | One of `code`, `model`, `reviewer`, or `human`. |
| `checks` | `string` | No | What it refuses; a `claim` Guard checks a stated term or promise against the record that backs it. Never randomized. |

**Returns**

| Output | Type | Required | Description |
| --- | --- | --- | --- |
| `guard` | [Guard](/business/nouns/guard) | Yes | The Guard. |

**Refuses when**

| Check | Error | Fix | Then call |
| --- | --- | --- | --- |
| The key is valid, but its scopes do not allow this operation. | [`forbidden`](/code/api/errors/forbidden) | Use a key whose scopes cover the operation, or ask an owner of the namespace to grant them. | None. |

**Example**

```ts
import { $ } from 'startup-builder'

const guard = await $.Guard.update({ id: 'guard_WtKo3jQi6J', tier: 'code' })
```

### Guard.delete
Deletes a Guard: a soft delete that keeps its history, undone by `Thing.restore`. [Verb page](/business/nouns/guard/delete?interface=sdk).

```ts
interface GuardVerbs {
  delete(input: GuardDeleteInput, options?: SB.CallOptions): SB.Call<Guard>
}
```

Emits `Guard.deleted`.

**Inputs**

| Input | Type | Required | Description |
| --- | --- | --- | --- |
| `id` | `string` | Yes | The id of the Guard. |

**Returns**

| Output | Type | Required | Description |
| --- | --- | --- | --- |
| `guard` | [Guard](/business/nouns/guard) | Yes | The Guard. |

**Refuses when**

| Check | Error | Fix | Then call |
| --- | --- | --- | --- |
| The key is valid, but its scopes do not allow this operation. | [`forbidden`](/code/api/errors/forbidden) | Use a key whose scopes cover the operation, or ask an owner of the namespace to grant them. | None. |

**Example**

```ts
import { $ } from 'startup-builder'

const guard = await $.Guard.delete({ id: 'guard_WtKo3jQi6J' })
```