---
title: "POST /eval-suites/{suiteId}/cases"
method: POST
path: "/eval-suites/{suiteId}/cases"
---

# POST /eval-suites/{suiteId}/cases

`POST /eval-suites/{suiteId}/cases`

## Request

- Base URL: `https://api.caveman.so/api/v1`
- URL: `https://api.caveman.so/api/v1/eval-suites/{suiteId}/cases`
- Auth: one of:
  - OAuth 2
    - Authorization code: `/api/v1/oauth/authorize`
    - Token URL: `/api/v1/oauth/token` scopes: `eval:write`
  - HTTP bearer
  - API key in cookie `cave_access`
  - API key in cookie `__Secure-cave_identity.session_token`

POST /api/v1/eval-suites/{suiteId}/cases on the Caveman Cloud control plane. Requires the eval:write scope. Exposed to autonomous agents as the add_case action of the caveman_evals_write tool (write access). Author versioned datasets, reusable evaluators and workbenches; create strict suites, ingest evidence, and run baselines. Evidence ingest supports dry_run — always dry-run first. Ask Caveman to draft quality criteria again within the drafting allowance, propose a criterion for a person to turn on, and hold the pull request that adds the Caveman check to CI. Track a criterion on a slice of traces in one step: from an agent it lands proposed, and a person turns it on. Queue units for review and label them (an agent's label is recorded as an agent's, never as human gold), and make a dataset from recorded traffic.

## Request body

- object
  - `fixture` unknown
  - `fixture_sha256` string
  - `fixture_storage_key` string
  - `graders` object[]
    - `options` unknown
    - `type` string
  - `graders_json` unknown
  - `name` string
  - `tags` string[]

## Response `201`

Eval case created.

## Other responses

- `422`: Legacy storage-backed case shape is unsupported.
- `2XX`: Successful response. Exact status depends on synchronous or durable delivery outcome.
- `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)