---
title: "POST /projects/{projectId}/setup/changes"
method: POST
path: "/projects/{projectId}/setup/changes"
---

# POST /projects/{projectId}/setup/changes

`POST /projects/{projectId}/setup/changes`

## Request

- Base URL: `https://api.caveman.so/api/v1`
- URL: `https://api.caveman.so/api/v1/projects/{projectId}/setup/changes`
- Auth: one of:
  - OAuth 2
    - Authorization code: `/api/v1/oauth/authorize`
    - Token URL: `/api/v1/oauth/token` scopes: `proposal:draft`
  - HTTP bearer
  - API key in cookie `cave_access`
  - API key in cookie `__Secure-cave_identity.session_token`

POST /api/v1/projects/{projectId}/setup/changes on the Caveman Cloud control plane. Requires the proposal:draft scope. Exposed to autonomous agents as the hold_setup_change action of the caveman_workflows_write tool (write access). Create and update the agents and workflows that traffic is labelled against. This is what makes per-workflow cost attribution work.

## Request body

- object
  - `purpose` string, required
  - `branch` string
  - `revert_variable` string, required
  - `files` object[], required
    - `path` string
    - `before_sha256` string
    - `edits` object[]
      - `old` string
      - `new` string
    - `create` string

## Response `2XX`

Successful response. Exact status depends on synchronous or durable delivery outcome.

## Other responses

- `4XX`: Structured failure. `error.code` is stable; `error.request_id` is echoed in the x-cave-request-id header.
- `5XX`: Structured failure. `error.code` is stable; `error.request_id` is echoed in the x-cave-request-id header.

---

[API](https://skmtc.dev/caveman/apis/caveman-cloud-api.md) - [All operations](https://skmtc.dev/caveman/apis/caveman-cloud-api/llms.txt) - [OpenAPI document](https://skmtc.dev/caveman/apis/caveman-cloud-api/revisions/508312d01cfc?raw)