---
title: "Update a trust rule"
method: PATCH
path: "/v1/trust-rules/{rule_id}"
tags: ["trust-rules"]
---

# Update a trust rule

`PATCH /v1/trust-rules/{rule_id}`

Updates risk and/or description. Updating a default-origin rule marks it userModified.

## Path parameters

- `rule_id` string, required

## Request body

- object
  - `risk` 'low' | 'medium' | 'high'
  - `description` string

## Response `200`

Successful response

- object
  - `rule` object, required
    - `id` string, required
    - `tool` string, required
    - `pattern` string, required
    - `risk` 'low' | 'medium' | 'high', required
    - `description` string, required
    - `origin` 'default' | 'user_defined', required
    - `userModified` boolean, required
    - `deleted` boolean, required
    - `scope` string, nullable, required
    - `createdAt` string, required
    - `updatedAt` string, required

## Changes

- **2026-08-31** `31bccc7f554f` — 1 info
  - added the required property `rule/scope` to the response with the `200` status
- **2026-07-06** `f6ef510612fb` — 1 info
  - endpoint added
- **2026-06-15** `8aa43f77a604` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/vellum-ai/apis/vellum-gateway-api/changes/v1/trust-rules/:rule_id/patch.md)

---

[API](https://skmtc.dev/vellum-ai/apis/vellum-gateway-api.md) · [All operations](https://skmtc.dev/vellum-ai/apis/vellum-gateway-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/vellum-ai/vellum-gateway-api/revisions/31bccc7f554f/schema)