# SITE_SLUG_TAKEN

**What it means.** Another page or post already uses that address.

**What to do.** Choose a different slug, or edit the existing page instead of creating a second one.

- HTTP status: 409
- Retryable after applying the fix: yes

Every failure from the CLI or an MCP tool has this shape:

```json
{
  "ok": false,
  "code": "SITE_SLUG_TAKEN",
  "message": "Another page or post already uses that address.",
  "fix": "Choose a different slug, or edit the existing page instead of creating a second one.",
  "file": "<where to edit, when known>",
  "retryable": true,
  "docs": "https://docs.uarpie.app/errors/SITE_SLUG_TAKEN"
}
```

Apply `fix` (edit `file` when it is given), then run the same command again.