These are the machine-readable shapes the registry read commands emit, plus the saved server config shape they describe.

JSON output shapes

Use --json for scripts and dashboards. Field sets can grow over time, so consumers should ignore unknown keys.

Read commands report invalid config, unknown servers, and disabled named checks as { "ok": false, "error": { "type": "cli_error", "message": "..." } } with a nonzero exit. Once doctor or probe produces a report, errors remain in that report rather than producing a second JSON document.

status --json
```json
{
  "path": "/home/user/.apus/apus.json",
  "servers": [
    {
      "name": "docs",
      "configured": true,
      "enabled": true,
      "ok": true,
      "transport": "streamable-http",
      "launch": "streamable-http https://mcp.example.com/mcp",
      "auth": "oauth",
      "authStatus": {
        "hasTokens": true,
        "requiresAuthorization": false,
        "hasClientInformation": true,
        "hasCodeVerifier": false,
        "hasDiscoveryState": true,
        "hasLastAuthorizationUrl": false,
        "state": "authorized"
      },
      "requestTimeoutMs": 20000,
      "connectionTimeoutMs": 5000,
      "toolFilter": {
        "include": ["search", "read_*"],
        "exclude": []
      },
      "supportsParallelToolCalls": true
    }
  ]
}
```
doctor --json
```json
{
  "ok": true,
  "path": "/home/user/.apus/apus.json",
  "servers": [
    {
      "name": "docs",
      "ok": true,
      "issues": [
        {
          "level": "warning",
          "message": "OAuth credentials are not authorized; run apus mcp login docs"
        }
      ]
    }
  ]
}
```

`doctor --json` exits nonzero when any enabled checked server has an `error`-level issue. `warning` and `info` issues are reported but do not make the command fail by themselves.
probe --json
```json
{
  "generatedAt": "2026-05-31T09:00:00.000Z",
  "servers": {
    "docs": {
      "launch": "streamable-http https://mcp.example.com/mcp",
      "tools": 2,
      "codexApprovalMode": "auto",
      "approvalHint": "tools have no safety annotations; calls require approval in prompting session postures",
      "resources": true,
      "listChanged": {
        "tools": true,
        "resources": false,
        "prompts": false
      }
    }
  },
  "tools": ["docs__read_page", "docs__search"],
  "diagnostics": []
}
```

`probe --json` opens a live MCP client session and prints its result directly; unlike `status`/`doctor`, the output has no top-level `path` field. Each server includes its effective `codexApprovalMode`; `approvalHint` appears when that mode is `auto` and the discovered tools have no safety annotations. The hint describes approval requirements under prompting postures, not the default full-permission posture. `resources` and `prompts` keys are present only when the server actually advertises that capability (a server without prompts omits the `prompts` key rather than reporting `false`). The command prints the complete result before exiting nonzero when diagnostics are present or a selected enabled server did not connect, so automation can inspect partial successes. Use `probe` for reachability and capability proof, not for static config audits.

Example config shape:

{
  "mcp": {
    "servers": {
      "context7": {
        "command": "uvx",
        "args": ["context7-mcp"]
      },
      "docs": {
        "url": "https://mcp.example.com",
        "transport": "streamable-http",
        "requestTimeoutMs": 20000,
        "connectionTimeoutMs": 5000,
        "supportsParallelToolCalls": true,
        "auth": "oauth",
        "oauth": {
          "scope": "docs.read"
        },
        "sslVerify": true,
        "clientCert": "/path/to/client.crt",
        "clientKey": "/path/to/client.key",
        "toolFilter": {
          "include": ["search_*"],
          "exclude": ["admin_*"]
        },
        "codex": {
          "defaultToolsApprovalMode": "approve"
        }
      }
    }
  }
}