amass_scan

Execute Amass for subdomain enumeration with enhanced logging.

SERVERNyxstrike SOURCECommonHuman-Lab/nyxstrike

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/nyxstrike/amass-scan.md

WHAT IT DOES

What amass_scan does on Nyxstrike

AI agents invoke amass_scan to trigger actions in Nyxstrike. 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.

RISK

Why amass_scan is rated High

This tool executes the Amass reconnaissance tool to enumerate subdomains of a target domain. It runs an external program and triggers network-facing operations. While subdomain enumeration is a read-like activity in nature, it actively executes an external tool against targets, making 'Execute' the appropriate category.

From the tool's definition Execute Amass for subdomain enumeration with enhanced logging

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs amass_scan safely

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

amass_scan Rate-limited

amass_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": {
    "amass_scan": {
      "limits": [
        {
          "counter": "amass_scan_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about amass_scan

What does the amass_scan tool do? +

Execute Amass for subdomain enumeration with enhanced logging. It is categorised as a Execute tool in the Nyxstrike MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on amass_scan? +

Register the Nyxstrike MCP server in PolicyLayer and add a rule for amass_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 Nyxstrike. Nothing to install.

What risk level is amass_scan? +

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

Can I rate-limit amass_scan? +

Yes. Add a rate_limit block to the amass_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 amass_scan completely? +

Set action: deny in the PolicyLayer policy for amass_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 amass_scan? +

amass_scan is provided by the Nyxstrike MCP server (CommonHuman-Lab/nyxstrike). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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