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alexandria_doctor

Run a self-diagnostic check on the Alexandria platform. Verifies: API connectivity, provider key status, .alexandria/ project detection, agent catalog loaded, routing responsive, learning DB reachable, MCP mode (delegate vs execute), and trust data availability. Returns a green/red dashboard. Use...

Part of the Alexandria server.

alexandria_doctor can trigger actions in Alexandria, with no limits today. PolicyLayer puts allow, deny, and rate-limit rules on every call. Live in minutes.

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AI agents invoke alexandria_doctor to trigger processes or run actions in Alexandria. Execute operations can have side effects beyond the immediate call -- triggering builds, sending notifications, or starting workflows. Rate limits and argument validation are essential to prevent runaway execution.

alexandria_doctor can trigger processes with real-world consequences. An uncontrolled agent might start dozens of builds, send mass notifications, or kick off expensive compute jobs. PolicyLayer enforces rate limits and validates arguments to keep execution within safe bounds.

Execute tools trigger processes. Rate-limit and validate arguments to prevent unintended side effects.

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "alexandria_doctor": {
      "limits": [
        {
          "counter": "alexandria_doctor_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

See the full Alexandria policy for all 20 tools.

Get this rule live on your own Alexandria server in minutes. PolicyLayer enforces it on every call, before it runs.

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These attack patterns abuse exactly the kind of access alexandria_doctor gives an agent. Each links to the full case and the policy that stops it:

Browse the full MCP Attack Database →

Every attack above starts with a tool call. PolicyLayer checks each one against your policy first, so alexandria_doctor only ever does what you allow.

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Other execute tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.

What does the alexandria_doctor tool do? +

Run a self-diagnostic check on the Alexandria platform. Verifies: API connectivity, provider key status, .alexandria/ project detection, agent catalog loaded, routing responsive, learning DB reachable, MCP mode (delegate vs execute), and trust data availability. Returns a green/red dashboard. Use when something seems broken or for a quick health check on first run.. It is categorised as a Execute tool in the Alexandria MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on alexandria_doctor? +

Register the Alexandria MCP server in PolicyLayer and add a rule for alexandria_doctor: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Alexandria. Nothing to install.

What risk level is alexandria_doctor? +

alexandria_doctor is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit alexandria_doctor? +

Yes. Add a rate_limit block to the alexandria_doctor rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block alexandria_doctor completely? +

Set action: deny in the PolicyLayer policy for alexandria_doctor. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides alexandria_doctor? +

alexandria_doctor is provided by the Alexandria MCP server (mcp-server-alexandria). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Alexandria tool call.

Deterministic rules across all 20 Alexandria tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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4,600+ MCP servers and 31,000+ tools scanned and risk-classified.

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