---
title: "Fetch Workflow Catalog Harness"
method: GET
path: "/workflows/catalog/harnesses/{ag_harness}"
tags: ["Workflows"]
---

# Fetch Workflow Catalog Harness

`GET /workflows/catalog/harnesses/{ag_harness}`

Return a single harness record (with its `capabilities`).

Returns 404 when the `ag_harness` is not part of the shipped catalog.

See: [Workflows](/reference/api-guide/workflows).

## Path parameters

- `ag_harness` string, required

## Response `200`

Successful Response

- WorkflowCatalogHarnessResponse
  - `count` integer — `1` when a harness record is returned, `0` when not found.
  - `harness` WorkflowCatalogHarness
    - `name` string, nullable
    - `description` string, nullable
    - `key` string, required
    - `capabilities` object, nullable

## Other responses

- `422` — Validation Error

## Changes

- **2026-07-25** `5a14788d939f` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/agenta-ai/apis/agenta-api/changes/workflows/catalog/harnesses/:ag_harness/get.md)

---

[API](https://skmtc.dev/agenta-ai/apis/agenta-api.md) · [All operations](https://skmtc.dev/agenta-ai/apis/agenta-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/agenta-ai/agenta-api/revisions/713e4f3b7519/schema)