graphql_scanner · MCP Kali Pentest MCP: Risk & Policy

WHAT IT DOES

What graphql_scanner does on MCP Kali Pentest

AI agents invoke graphql_scanner to trigger actions in MCP Kali Pentest. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why graphql_scanner needs a policy

This tool actively scans a target GraphQL endpoint by probing for introspection queries, injection vulnerabilities, and misconfigurations. It executes external security testing operations against target systems, making it an active scanner rather than a passive read tool.

From the tool's definition GraphQL security scanner checking for introspection, injection, and misconfiguration

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

graphql_scanner Rate-limited

graphql_scanner stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "graphql_scanner": {
      "limits": [
        {
          "counter": "graphql_scanner_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches MCP Kali Pentest, so you can run agents against it safely.

FAQ

Questions about graphql_scanner

What does the graphql_scanner tool do? +

GraphQL security scanner checking for introspection, injection, and misconfiguration. It is categorised as a Execute tool in the MCP Kali Pentest MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on graphql_scanner? +

Register the MCP Kali Pentest MCP server in PolicyLayer and add a rule for graphql_scanner: 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 MCP Kali Pentest. Nothing to install.

What risk level is graphql_scanner? +

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

Can I rate-limit graphql_scanner? +

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

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

graphql_scanner is provided by the MCP Kali Pentest MCP server (root1856/mcpkali). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.