qrcode_generate · SVG Canvas MCP: Risk & Policy

WHAT IT DOES

What qrcode_generate does on SVG Canvas MCP

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

WHY IT NEEDS A POLICY

Why qrcode_generate needs a policy

This tool creates QR code graphics, which is a reversible write operation. It generates new visual data that can be modified or deleted. There are no irreversible deletions, code execution with unpredictable side effects, financial implications, or external system access. The blast radius is minimal—misuse would only result in unwanted QR codes being added to a canvas, which can be undone.

From the tool's definition Tool name 'qrcode_generate' and description 'QR 코드를 생성합니다' (generates QR code) indicate creation of new graphical content within the SVG canvas context.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

qrcode_generate Rate-limited

qrcode_generate 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": {
    "qrcode_generate": {
      "limits": [
        {
          "counter": "qrcode_generate_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 SVG Canvas MCP, so you can run agents against it safely.

FAQ

Questions about qrcode_generate

What does the qrcode_generate tool do? +

QR 코드를 생성합니다. It is categorised as a Write tool in the SVG Canvas MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on qrcode_generate? +

Register the SVG Canvas MCP server in PolicyLayer and add a rule for qrcode_generate: 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 SVG Canvas MCP. Nothing to install.

What risk level is qrcode_generate? +

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

Can I rate-limit qrcode_generate? +

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

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

qrcode_generate is provided by the SVG Canvas MCP server (kim62210/svg-canvas-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.