generate_qr_code

Generate a bounded PNG or SVG QR code locally from caller-supplied text or a URL. Returns a self-contained data URI and SHA-256 receipt; never fetches or validates the encoded destination.

SERVERDelx Mcp A2a SOURCEhttps://api.delx.ai/v1/mcp

Medium RISK CLASS

Category Write

Parameters 61 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-davidmosiah-delx-mcp-a2a/generate-qr-code.md

WHAT IT DOES

What generate_qr_code does on Delx Mcp A2a

AI agents use generate_qr_code to create or update resources in Delx Mcp A2a, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Delx Mcp A2a environment.

Parameter	Type	Required	Description
`data`	string	Yes	Text or URL to encode; it is not fetched or validated.
`text`	string	—	Alias for data.
`border`	integer	—
`format`	string	—
`box_size`	integer	—
`error_correction`	string	—

Parameters from the server's own tool schema.

RISK

Why generate_qr_code is rated Medium

This tool creates a new QR code image from caller-supplied input and returns it as a data URI, which is a write operation that produces a reversible artifact. It does not execute code, delete data, move funds, or trigger external operations.

From the tool's definition Tool generates and returns a QR code (PNG or SVG) as a new artifact; returns 'a self-contained data URI and SHA-256 receipt', indicating creation of output content.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs generate_qr_code safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Delx Mcp A2a, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For generate_qr_code, this is the rule to start with:

generate_qr_code Rate-limited

generate_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": {
    "generate_qr_code": {
      "limits": [
        {
          "counter": "generate_qr_code_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Delx Mcp A2a, apply this rule, and every generate_qr_code call is checked against it from then on.

FAQ

Questions about generate_qr_code

What does the generate_qr_code tool do? +

Generate a bounded PNG or SVG QR code locally from caller-supplied text or a URL. Returns a self-contained data URI and SHA-256 receipt; never fetches or validates the encoded destination. It is categorised as a Write tool in the Delx Mcp A2a MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does generate_qr_code accept? +

generate_qr_code accepts 6 parameters: data, text, border, format, box_size, error_correction. Required: data. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on generate_qr_code? +

Register the Delx Mcp A2a MCP server in PolicyLayer and add a rule for generate_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 Delx Mcp A2a. Nothing to install.

What risk level is generate_qr_code? +

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

Can I rate-limit generate_qr_code? +

Yes. Add a rate_limit block to the generate_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 generate_qr_code completely? +

Set action: deny in the PolicyLayer policy for generate_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 generate_qr_code? +

generate_qr_code is provided by the Delx Mcp A2a MCP server (https://api.delx.ai/v1/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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