kage_setup_doctor

THE RISK

Low Risk

Why kage_setup_doctor needs a policy

The tool performs a setup audit/diagnostic check across agent configurations. Auditing and readiness checks are read-only operations that inspect system state without creating, modifying, or deleting data. Low severity as it only reads configuration information.

From the tool's definition 'Audit Kage setup' — auditing/diagnostic operation that reads and checks configuration state without modifying anything

Documented attack patterns abuse exactly the kind of access kage_setup_doctor gives an agent:

POLICY

How to control kage_setup_doctor

PolicyLayer is an MCP gateway — it sits between your AI agents and Kage, and nothing reaches the server without passing your rules. This is the rule we recommend for kage_setup_doctor:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "kage_setup_doctor": {}
  }
}

kage_setup_doctor is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Kage — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about kage_setup_doctor

What does the kage_setup_doctor tool do? +

Audit Kage setup across supported agents, including Claude Code ambient hook readiness when applicable. It is categorised as a Read tool in the Kage MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on kage_setup_doctor? +

Register the Kage MCP server in PolicyLayer and add a rule for kage_setup_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 Kage. Nothing to install.

What risk level is kage_setup_doctor? +

kage_setup_doctor is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit kage_setup_doctor? +

Yes. Add a rate_limit block to the kage_setup_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 kage_setup_doctor completely? +

Set action: deny in the PolicyLayer policy for kage_setup_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 kage_setup_doctor? +

kage_setup_doctor is provided by the Kage MCP server (@kage-core/kage-graph-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Kage tool call.

Start from Kage, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →