bug: Get user tool 404s because it doesn't know who the user is?

I'm not sure how the get user tool supposed to work but claude complains that it's unable to use it:

```json
[
{
  "type": "text", 
  "text": "Request failed: Request failed with status code 404", "uuid": "c0dbac5a-fee5-419b-b7d2-b4a3c54124ac"}
]
```

self-hosted. Other tools seem to work