# treat

URL: /business/nouns/risk/treat · Id: `verb:Risk.treat` · Call: `await $.Risk.treat({ … })` (SDK) or the `do` tool at `https://api.sb/mcp`. Inputs says what to pass, Outputs what returns, When it waits who approves.

> Treat links a Risk to the Controls that lower it and records the score it should reach.

Treat links a [Risk](/business/nouns/risk) to the [Controls](/business/nouns/control) that lower it and records the score it should reach.

## Inputs
| Input | Type | Required | Description |
| --- | --- | --- | --- |
| `risk` | [Risk](/business/nouns/risk) | Yes | The Risk to treat. |
| `controls` | list of [Control](/business/nouns/control) | Yes | The Controls that lower it. |

## Outputs
| Output | Type | Required | Description |
| --- | --- | --- | --- |
| `risk` | [Risk](/business/nouns/risk) | Yes | The treated Risk. |

## Effects
- Emits [`Risk.treated`](/business/events/Risk.treated).
- Performed by the [Risk Analyst](/agents/operations/risk-analyst).
- Two-way: it runs at once, in the `try`, `send` and `do` modes.

## 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. | [Risk.treat](/business/nouns/risk/treat) |

## When it waits
| Gate | Default |
| --- | --- |
| Decision class | Low: two-way, nothing at stake |
| [Delay window](/systems/trust-and-governance/controls/one-way-windows) | None: it runs once review passes. |
| Limit | The call [Limit](/business/nouns/limit) of the [Permission](/business/nouns/permission) it runs under. |
| Over the Limit | It waits `pending` for an [Approval](/business/nouns/approval) from the [Founder](/agents/founding/founder). Approved, it runs; refused, it ends `refused` with [`limit-exceeded`](/code/api/errors/limit-exceeded); unanswered by its deadline, it ends `canceled`. |

## Example

**Ask**

```text
Treat the latest risk with a control.
```

**API**

```bash
curl -X POST https://api.sb/routewise.dev/risks/risk_1/treat \
  -H "Authorization: Bearer $STARTUP_BUILDER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"controls":["control_1"]}'
```

```json
{
  "api": "https://api.sb/routewise.dev",
  "risk": {
    "$id": "https://api.sb/routewise.dev/risks/risk_1",
    "$type": "Risk",
    "scope": "Example scope",
    "likelihood": 1,
    "impact": 1,
    "owner": "role_1"
  },
  "action": {
    "$id": "https://api.sb/routewise.dev/actions/action_1",
    "operation": "Risk.treat",
    "status": "done"
  },
  "links": {
    "self": "https://api.sb/routewise.dev/actions/action_1"
  }
}
```

**SDK**

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

const risk = await $.Risk.treat({ risk: 'risk_1', controls: ['control_1'] })
```

**CLI**

```bash
npx startup-builder do Risk.treat --json '{"risk":"risk_1","controls":["control_1"]}'
```

**MCP**

```json
{
  "name": "do",
  "arguments": {
    "code": "return await $.Risk.treat({ risk: 'risk_1', controls: ['control_1'] })"
  }
}
```