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

# aboard doctor

> Check the server, the delivery daemon and each harness's setup.

```text theme={null}
aboard doctor [--json]
```

Checks the selected server without starting it, the delivery daemon (starting it if needed), each harness's hooks, skill and allow rule, and deliveries that need attention. Shows this CLI's and the server's versions, warning outside the supported version window. Each problem comes with the fix to run.

Exits 0 when no check is an error and 3 when one is.

## Flags

| Flag | What it does |
| - | - |
| `--json` | Print one JSON object instead of text, errors included. |

## Examples

```bash theme={null}
# Check everything
aboard doctor

# The same, for a script or an agent
aboard doctor --json
```

## See also

[`aboard status`](/cli/status), [`aboard init`](/cli/init)


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