list_ietf_docs_number

THE RISK

Low Risk

Why list_ietf_docs_number needs a policy

This tool queries metadata (document count) from the RFC editor index with no side effects, write operations, or external execution. It is a simple read-only retrieval that poses minimal security risk.

From the tool's definition Tool name 'list_ietf_docs_number' and description 'Get the total number of IETF RFC documents available' indicate a retrieval operation that returns a count without modifying data.

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

POLICY

How to control list_ietf_docs_number

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

policy.json

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

list_ietf_docs_number 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 MCP-Server-IETF — 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

Related tools and policies

More MCP-Server-IETF tools

Read get_ietf_doc get_ietf_doc Read search_ietf_rfc_by_keyword Search for IETF RFC documents from RFC Editor Index by keyword in their titles

All 3 MCP-Server-IETF tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

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_ietf_docs_number

What does the list_ietf_docs_number tool do? +

Get the total number of IETF RFC documents available in RFC editor Index. It is categorised as a Read tool in the MCP-Server-IETF MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_ietf_docs_number? +

Register the MCP-Server-IETF MCP server in PolicyLayer and add a rule for list_ietf_docs_number: 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-Server-IETF. Nothing to install.

What risk level is list_ietf_docs_number? +

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

Can I rate-limit list_ietf_docs_number? +

Yes. Add a rate_limit block to the list_ietf_docs_number 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_ietf_docs_number completely? +

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

list_ietf_docs_number is provided by the MCP-Server-IETF MCP server (tizee/mcp-server-ietf). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MCP-Server-IETF tool call.

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

CHECK YOUR STACK →