subfinder_scan

A read tool on the Hexstrike Ai MCP server.

SERVERHexstrike Ai SOURCE0x4m4/hexstrike-ai

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/hexstrike-ai/subfinder-scan.md

WHAT IT DOES

What subfinder_scan does on Hexstrike Ai

AI agents call subfinder_scan to retrieve information from Hexstrike Ai without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why subfinder_scan is rated Low

Subdomain scanning retrieves information about target infrastructure without modifying or deleting anything. It is passive reconnaissance that gathers intelligence about a target's attack surface. While the context (pentesting/offensive security) is concerning, the tool itself performs data retrieval only.

From the tool's definition Tool name 'subfinder_scan' indicates subdomain enumeration/discovery. Subfinder is a well-known reconnaissance tool that queries public DNS records and APIs to identify subdomains of a target domain.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs subfinder_scan safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Hexstrike Ai, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For subfinder_scan, this is the rule to start with:

subfinder_scan Allowed

subfinder_scan is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Hexstrike Ai, apply this rule, and every subfinder_scan call is checked against it from then on.

FAQ

Questions about subfinder_scan

What does the subfinder_scan tool do? +

subfinder_scan is a read tool on the Hexstrike Ai MCP server. It is categorised as a Read tool in the Hexstrike Ai MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on subfinder_scan? +

Register the Hexstrike Ai MCP server in PolicyLayer and add a rule for subfinder_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 Hexstrike Ai. Nothing to install.

What risk level is subfinder_scan? +

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

Can I rate-limit subfinder_scan? +

Yes. Add a rate_limit block to the subfinder_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 subfinder_scan completely? +

Set action: deny in the PolicyLayer policy for subfinder_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 subfinder_scan? +

subfinder_scan is provided by the Hexstrike Ai MCP server (0x4m4/hexstrike-ai). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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