AI agents call fetch_nuclei_results to retrieve information from pentestMCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Although this tool retrieves results from a penetration testing security scanner (Nuclei), the tool itself performs no modifications, deletions, or execution. It only reads/fetches scan results.
From the tool's definition Tool is described as a 'Non-blocking fetch for Nuclei scan results' — the verb 'fetch' and the retrieval operation indicate this retrieves or queries data without side effects.
Documented attack patterns abuse exactly the kind of access fetch_nuclei_results gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and pentestMCP, and nothing reaches the server without passing your rules. This is the rule we recommend for fetch_nuclei_results:
{
"version": "1",
"default": "deny",
"tools": {
"fetch_nuclei_results": {}
}
}fetch_nuclei_results is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Non-blocking fetch for Nuclei scan results:. It is categorised as a Read tool in the pentestMCP MCP Server, which means it retrieves data without modifying state.
Register the pentest MCP server in PolicyLayer and add a rule for fetch_nuclei_results: 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 pentestMCP. Nothing to install.
fetch_nuclei_results is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the fetch_nuclei_results 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.
Set action: deny in the PolicyLayer policy for fetch_nuclei_results. 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.
fetch_nuclei_results is provided by the pentest MCP server (ramkansal/pentestmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 36 pentestMCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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36 pentestMCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.