---
title: "Edit Evaluator"
method: PUT
path: "/evaluators/{evaluator_id}"
tags: ["Evaluators"]
---

# Edit Evaluator

`PUT /evaluators/{evaluator_id}`

Edit an evaluator artifact's metadata.

Edits are limited to metadata fields (description, tags, meta).
Renaming is temporarily disabled and returns 400. To change
evaluator behavior, commit a new revision on the variant — see
`/evaluators/revisions/commit`.

## Path parameters

- `evaluator_id` string, uuid, required

## Request body

- EvaluatorEditRequest — Body for editing the metadata of an existing evaluator artifact.
  - `evaluator` EvaluatorEdit, required
    - `folder_id` string, uuid, nullable
    - `flags` EvaluatorFlags — Legacy full evaluator flag set.
      - `is_application` boolean
      - `is_evaluator` boolean
      - `is_snippet` boolean
      - `is_managed` boolean
      - `is_custom` boolean
      - `is_llm` boolean
      - `is_hook` boolean
      - `is_code` boolean
      - `is_match` boolean
      - `is_feedback` boolean
      - `is_chat` boolean
      - `has_url` boolean
      - `has_script` boolean
      - `has_handler` boolean
    - `tags` object, nullable
    - `meta` object, nullable
    - `name` string, nullable
    - `description` string, nullable
    - `id` string, uuid, nullable

## Response `200`

Successful Response

- EvaluatorResponse — Envelope for a single evaluator response.
  - `count` integer — 1 when an evaluator is returned, 0 otherwise.
  - `evaluator` Evaluator
    - `folder_id` string, uuid, nullable
    - `flags` EvaluatorArtifactFlags
      - `is_application` boolean
      - `is_evaluator` boolean
      - `is_snippet` boolean
    - `tags` object, nullable
    - `meta` object, nullable
    - `name` string, nullable
    - `description` string, nullable
    - `created_at` string, date-time, nullable
    - `updated_at` string, date-time, nullable
    - `deleted_at` string, date-time, nullable
    - `created_by_id` string, uuid, nullable
    - `updated_by_id` string, uuid, nullable
    - `deleted_by_id` string, uuid, nullable
    - `slug` string, nullable
    - `id` string, uuid, nullable

## Other responses

- `422` — Validation Error

## Changes

- **2026-05-19** `a7f9a6823230` — 2 warning
  - removed the optional property `support_id` from the response with the `200` status
  - removed the optional property `support_ts` from the response with the `200` status
- **2026-04-23** `925e8b901a26` — 2 info
  - added the optional property `support_id` to the response with the `200` status
  - added the optional property `support_ts` to the response with the `200` status
- **2026-04-16** `8b06b786c977` — 1 warning, 13 info
  - removed the request property `evaluator/flags/anyOf[subschema #1: EvaluatorFlags]/is_human`
  - added the new optional request property `evaluator/flags/anyOf[subschema #1: EvaluatorFlags]/has_handler`
  - added the new optional request property `evaluator/flags/anyOf[subschema #1: EvaluatorFlags]/has_script`
  - added the new optional request property `evaluator/flags/anyOf[subschema #1: EvaluatorFlags]/has_url`
  - …10 more
- **2026-02-27** `8fcd55a5a656` — 1 info
  - endpoint added
- **2025-06-27** `e3e84db47198` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/agenta-ai/apis/agenta-api/changes/evaluators/:evaluator_id/put.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/06e03dbce2be/schema)