kg_admin

THE RISK

Low Risk

Why kg_admin needs a policy

The description is incomplete, providing no actionable detail about what operations are actually performed. 'Admin/maintenance' could span Read, Write, Execute, or Destructive depending on implementation. Given the ambiguity, severity is medium as admin tools in knowledge graphs often include potentially destructive operations (purge, reset, rebuild), but confidence is low due to insufficient description.

From the tool's definition 'Unified admin tool for maintenance operations. Supports:' — description is truncated and uninformative beyond 'admin' and 'maintenance operations'

Risk signalsAdmin/system-level operation

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

POLICY

How to control kg_admin

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "kg_admin": {
      "limits": [
        {
          "counter": "kg_admin_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

kg_admin gets a rate cap, and everything else on the server is denied unless you say otherwise.

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

SET A RULE FOR THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Tool risk categories → How PolicyLayer classifies MCP tools by what they can do.
MCP tool → What an MCP tool is and how clients discover and call it.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about kg_admin

What does the kg_admin tool do? +

Unified admin tool for maintenance operations. Supports:. It is categorised as a Other tool in the Personal Kg MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on kg_admin? +

Register the Personal Kg MCP server in PolicyLayer and add a rule for kg_admin: 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 Personal Kg. Nothing to install.

What risk level is kg_admin? +

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

Can I rate-limit kg_admin? +

Yes. Add a rate_limit block to the kg_admin 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 kg_admin completely? +

Set action: deny in the PolicyLayer policy for kg_admin. 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 kg_admin? +

kg_admin is provided by the Personal Kg MCP server (tomschell/personal-kg-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Personal Kg tool call.

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

CHECK YOUR STACK →