notes_file · EAG MCP Demo MCP: Risk & Policy

WHAT IT DOES

What notes_file does on EAG MCP Demo

AI agents call notes_file as a supporting operation in EAG MCP Demo workflows.

WHY IT NEEDS A POLICY

Why notes_file needs a policy

The description is empty, so the tool's behavior cannot be determined with confidence. The name 'notes_file' suggests interaction with a notes file (possibly Read or Write), but given the CRUD context of the server, it could perform any operation. With no evidence to elevate severity, defaulting to Other with low confidence.

From the tool's definition Tool name is 'notes_file' and description is empty/uninformative. Sibling tools suggest a notes CRUD system, but without a description we cannot determine the exact operation this tool performs.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

notes_file Rate-limited

notes_file gets a rate cap, and everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "notes_file": {
      "limits": [
        {
          "counter": "notes_file_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

SET A RULE FOR THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches EAG MCP Demo, so you can run agents against it safely.

FAQ

Questions about notes_file

What does the notes_file tool do? +

notes_file. It is categorised as a Other tool in the EAG MCP Demo MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on notes_file? +

Register the EAG MCP Demo MCP server in PolicyLayer and add a rule for notes_file: 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 EAG MCP Demo. Nothing to install.

What risk level is notes_file? +

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

Can I rate-limit notes_file? +

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

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

notes_file is provided by the EAG MCP Demo MCP server (skinnymonk/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.