---
title: "Create or update a governed CET Workbench playbook"
method: POST
path: "/api/workbench/playbooks"
tags: ["Workbench"]
---

# Create or update a governed CET Workbench playbook

`POST /api/workbench/playbooks`

## Request

- Base URL: `https://api.cernion.de`
- URL: `https://api.cernion.de/api/workbench/playbooks`
- Auth: none declared

CET-governed Workbench/Tenant-Gateway API for Open WebUI clients. Tokens stay server-side; CET remains case-state and governance authority.

## Query parameters

- `token` string

## Request body

- object
  - `token` string: Optional Cernion MCP token for this request. Overrides CERNION_TOKEN when provided.

## Response `200`

Workbench response

- object

## Other responses

- `403`: Tenant, actor, role or sensitivity denied
- `404`: Workbench resource not found
- `409`: Stale or conflicting mapping
- `422`: Invalid workbench request

---

[API](https://skmtc.dev/cernion/apis/cernion-energy-tools-api.md) · [All operations](https://skmtc.dev/cernion/apis/cernion-energy-tools-api/llms.txt) · [OpenAPI document](https://skmtc.dev/cernion/apis/cernion-energy-tools-api/revisions/cdb94473b538?raw)