---
title: "Update Trait Endpoint"
method: PUT
path: "/api/v1/traits/{trait_id}"
tags: ["traits"]
---

# Update Trait Endpoint

`PUT /api/v1/traits/{trait_id}`

## Request

- Base URL: `https://api.gnosari.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.gnosari.com/api/v1/traits/{trait_id}`
- Auth: one of:
  - HTTP bearer
  - API key in header `X-AUTH-TOKEN`

Update a trait.

## Path parameters

- `trait_id` integer, required

## Request body

- TraitUpdate: Schema for updating trait.
  - `name` string, nullable
  - `identifier` string, nullable
  - `description` string, nullable
  - `instructions` string, nullable
  - `weight` number, nullable
  - `is_default` boolean, nullable: Auto-assign this trait to new agents
  - `category_ids` integer[], nullable: List of category IDs
  - `tag_ids` integer[], nullable: List of tag IDs
  - `tags` string[], nullable: List of tag names (will create if not exist)

## Response `200`

Successful Response

- TraitRead
  - `id` integer, required
  - `name` string, required
  - `identifier` string, required
  - `description` string, required
  - `instructions` string, required
  - `weight` number, required
  - `is_default` boolean, required
  - `categories` TraitCategoryRead[]
    - `id` integer, required
    - `name` string, required
    - `description` string, nullable, required
    - `created_at` string, date-time, required
    - `updated_at` string, date-time, required
  - `tags` TraitTagRead[]
    - `id` integer, required
    - `name` string, required
    - `created_at` string, date-time, required
    - `updated_at` string, date-time, required
  - `agents` TraitAgentRead[]
    - `id` integer, required
    - `name` string, required
  - `created_at` string, date-time, required
  - `updated_at` string, date-time, required

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/gnosari/apis/gnosari-api.md) · [All operations](https://skmtc.dev/gnosari/apis/gnosari-api/llms.txt) · [OpenAPI document](https://skmtc.dev/gnosari/apis/gnosari-api/revisions/f299cf53ae5f?raw)