list_dns_records

THE RISK

Low Risk

Why list_dns_records needs a policy

The tool retrieves/queries DNS records without creating, modifying, or deleting data. This is a standard informational lookup with no side effects, placing it firmly in the Read category. Severity is low because DNS record enumeration is informational and causes no operational impact. Confidence is high due to clear descriptive language indicating retrieval only.

From the tool's definition Tool description states 'Retrieves a list of DNS records' — a read-only query operation with no modification or execution of commands.

Documented attack patterns abuse exactly the kind of access list_dns_records gives an agent:

POLICY

How to control list_dns_records

PolicyLayer is an MCP gateway — it sits between your AI agents and eToro MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_dns_records:

policy.json

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

list_dns_records is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register eToro MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about list_dns_records

What does the list_dns_records tool do? +

Retrieves a list of DNS records created for a domain name. It is categorised as a Read tool in the eToro MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_dns_records? +

Register the eToro MCP Server MCP server in PolicyLayer and add a rule for list_dns_records: 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 eToro MCP Server. Nothing to install.

What risk level is list_dns_records? +

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

Can I rate-limit list_dns_records? +

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

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

list_dns_records is provided by the eToro MCP Server MCP server (shlomico-tr/etoroportfoliomcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every eToro MCP Server tool call.

Start from eToro MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →