LLMs.txt lists all API query parameter names in CamelCase

[hkosova]

CLI Version (from fern.config.json)

0.50.13, also 0.46.22

Minimal API Specification

openapi: 3.1.0
info:
  title: LLMs.txt issues
  version: 1.0.0
servers:
  - url: https://example.com/v1

paths:
  /something:
    get:
      summary: Get something
      parameters:
        - in: query
          name: type
          schema:
            type: string
        - in: query
          name: id__in
          schema:
            type: string
      responses:
        '200':
          description: OK

Actual UI Behavior

When you view the .mdx page for an API endpoint or view <site>/llms-full.txt, the names of API query parameters in those files are specified in CamelCase.

For example, Fern generates the following .mdx for the OpenAPI spec provided above. Note the query parameter names are different from the names in the spec.

# Get something

`` `http
GET https://example.com/v1/something
`` `



## Query Parameters

- Type (optional)
- IdIn (optional)

## Examples

`` `shell
curl https://example.com/v1/something
`` `

Expected UI Behavior

Query parameter names in .mdx and /llms-full.txt are correct and are the same as defined in the OpenAPI spec.

## Query Parameters

- type (optional)
- id__in (optional)

Steps to Reproduce

1. Create a docs project with the OpenAPI spec provided above.
2. Publish the docs.
3. Open the page for the GET /something endpoint and append .mdx to the page address.
4. Check the query parameter names.

Environment Details

Node 22