create-qr-code · Quickchart MCP: Risk & Policy

WHAT IT DOES

What create-qr-code does on Quickchart

AI agents use create-qr-code to create or update resources in Quickchart — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Quickchart environment.

WHY IT NEEDS A POLICY

Why create-qr-code needs a policy

Creating QR codes is a write operation—it generates new data (image files) but is reversible and has no destructive side effects, no code execution, and no financial impact. The blast radius is minimal since QR codes are informational artifacts with no direct system access or data modification consequences. Severity is low because misuse would only result in unwanted QR code generation, which is easily corrected.

From the tool's definition Tool creates QR code images and can save them to file. Described as 'Create QR codes' and 'save QR code image to file', which are write operations that generate new data artifacts.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create-qr-code Rate-limited

create-qr-code 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": {
    "create-qr-code": {
      "limits": [
        {
          "counter": "create-qr-code_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

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

FAQ

Questions about create-qr-code

What does the create-qr-code tool do? +

Create QR codes using QuickChart - get QR code image URL or save QR code image to file. It is categorised as a Write tool in the Quickchart MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create-qr-code? +

Register the Quickchart MCP server in PolicyLayer and add a rule for create-qr-code: 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 Quickchart. Nothing to install.

What risk level is create-qr-code? +

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

Can I rate-limit create-qr-code? +

Yes. Add a rate_limit block to the create-qr-code 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 create-qr-code completely? +

Set action: deny in the PolicyLayer policy for create-qr-code. 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 create-qr-code? +

create-qr-code is provided by the Quickchart MCP server (takanarishimbo/quickchart-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.