generate_typed_qr · QRMint MCP Server MCP: Risk & Policy

WHAT IT DOES

What generate_typed_qr does on QRMint MCP Server

AI agents use generate_typed_qr to create or update resources in QRMint MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your QRMint MCP Server environment.

WHY IT NEEDS A POLICY

Why generate_typed_qr needs a policy

This tool creates new QR code images from user-provided structured data (WiFi credentials, vCard contact info, etc.). While it produces output, it does not modify or delete existing data, execute arbitrary code, trigger financial transactions, or perform destructive operations.

From the tool's definition Tool generates and returns a base64-encoded image artifact (a QR code), which constitutes creation of new data. The description states it 'Generate[s] a QR code' from structured input, indicating data creation rather than retrieval.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_typed_qr Rate-limited

generate_typed_qr stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "generate_typed_qr": {
      "limits": [
        {
          "counter": "generate_typed_qr_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about generate_typed_qr

What does the generate_typed_qr tool do? +

Generate a QR code from structured data (WiFi, vCard, Email, Phone, SMS, Event, EPC, Geo). Returns a base64-encoded image. It is categorised as a Write tool in the QRMint MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on generate_typed_qr? +

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

What risk level is generate_typed_qr? +

generate_typed_qr is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit generate_typed_qr? +

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

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

generate_typed_qr is provided by the QRMint MCP Server MCP server (softvoyagers/qrmint-api-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.