# Guardrail Risk Checks \[Use Guardrail data in Newton policies as an optional risk signal for vault manager actions.]

The Guardrail policy pack adds a Guardrail risk signal to composite policies for manager-action gates.

## Deployment

| Field | Value |
| --- | --- |
| Pack id | `guardrail` |
| PolicyData addresses | [VaultKit address table](/developers/vaults/policy-packs#deployed-policydata-addresses) |
| Canonical deployments | [`deployments.json`](https://github.com/newt-foundation/newton-policy-packs/blob/main/deployments.json) |

### Secret

| Secret | Required? | Where to get it |
| --- | --- | --- |
| `GUARDRAIL_API_KEY` | Optional | [guardrail.so](https://guardrail.so) |

## Usage

Install the pack package, include its module in `defineComposite(...)`, and upload `GUARDRAIL_API_KEY` only when your deployment requires it. Per-call inputs go under `prepareQueryOptions.guardrail`.