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

# doctor

> Health check: versions, instance, row counts

```bash theme={null}
duckbrain doctor [--instance <name>]
```

Reports the DuckDB version (pinned ≥ 1.5.4), the active instance path, and per-source bronze row counts. Run it first when anything misbehaves — most issues are a missing `init`, a stale index, or an old DuckDB.