nuclei_scan · MCP Kali Pentest MCP: Risk & Policy

WHAT IT DOES

What nuclei_scan does on MCP Kali Pentest

AI agents invoke nuclei_scan 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 nuclei_scan needs a policy

Nuclei is an active scanner that sends crafted requests to target systems to detect vulnerabilities. It is not merely reading local data — it executes network-based probes, exploit-style payloads, and template-driven checks against external hosts.

From the tool's definition 'Fast vulnerability scanner using templates. Detects CVEs, misconfigurations, and security issues.' — nuclei actively probes and tests remote targets using attack templates, triggering external network operations against systems.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

nuclei_scan Rate-limited

nuclei_scan 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": {
    "nuclei_scan": {
      "limits": [
        {
          "counter": "nuclei_scan_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 nuclei_scan

What does the nuclei_scan tool do? +

Fast vulnerability scanner using templates. Detects CVEs, misconfigurations, and security issues. 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 nuclei_scan? +

Register the MCP Kali Pentest MCP server in PolicyLayer and add a rule for nuclei_scan: 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 nuclei_scan? +

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

Can I rate-limit nuclei_scan? +

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

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

nuclei_scan 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.

// THE FULL RECORD

nuclei_scan is one line of MCP Kali Pentest's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

Teams ship this data inside their own products. See what a licence covers →