> ## Documentation Index
> Fetch the complete documentation index at: https://docs.workway.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# list_domains

> Every job domain with its live open-role count.

<Note>
  **Read tool** — answers questions; nothing is modified. Requires a WorkWay API key.
</Note>

Returns the full domain taxonomy with current counts. Call this to discover valid domain slugs before filtering `search_jobs`, or to answer questions about which fields have the most openings.

## Parameters

<Info>This tool takes no arguments.</Info>

## Example prompts

<CardGroup cols={2}>
  <Card title="Try asking" icon="comment">
    "Which fields have the most open roles on WorkWay?"
  </Card>

  <Card title="Try asking" icon="comment">
    "What domains can I filter jobs by?"
  </Card>
</CardGroup>

## Response

```json theme={null}
{
  "domains": [
    { "name": "Software Engineering", "slug": "software-engineering", "job_count": 104540 },
    { "name": "AI / Data Science", "slug": "ai-data-science", "job_count": 21877 }
  ],
  "cta": "Browse by domain at https://workway.dev/domains"
}
```