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Zovo QR Code Maker

by theluckystrike · remote · no sign-in to list tools · v1.0.0 · published by GitHub user theluckystrike

QR codes for links & contacts

Changes · 2
CompareRegistry entry

2 tools: 2 change things.

Scanned Oct 22, 2026

2 checks matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http qr-code-studio https://qr-code-studio.zovo.one/mcp

Findings

Matches of fixed checks, with the text they matched.

2 warn
  • Warngenerate_qr_code

    The server marks "generate_qr_code" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "generate_qr_code" says "generate": a word for a change.

    What this check looks for
  • Warngenerate_text_qr_code

    The server marks "generate_text_qr_code" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "generate_text_qr_code" says "generate": a word for a change.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

2 tools

Changes things 2Claude Code: ask
  • generate_qr_codeUse this when the user wants a QR code: for a website link, plain text, an email, a phone number, an SMS, a contact card (vCard), or a calendar event.1 finding

    Why it is in this group

    • The name "generate_qr_code" says "generate": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "generate_qr_code" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "generate_qr_code" says "generate": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Use this when the user wants a QR code: for a website link, plain text, an email, a phone number, an SMS, a contact card (vCard), or a calendar event. Returns the code as SVG with PNG and SVG download links, plus scan warnings (low contrast, high density) and an optional minimum print size. Plain text and SMS text are limited to 1,500 characters; URLs to 2,000; encoded content must fit the QR byte capacity (1,273–2,953 bytes depending on error correction). Generates static codes only; it does not shorten links, track scans, or make Wi-Fi codes. Do not use for barcodes (EAN/UPC/Code 128).

    Annotations the server declares

    • title: Generate QR code
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
    • idempotentHint: true
  • generate_text_qr_codeUse this when the user wants a PNG and SVG QR image that displays plain text when scanned.1 finding

    Why it is in this group

    • The name "generate_text_qr_code" says "generate": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "generate_text_qr_code" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "generate_text_qr_code" says "generate": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Use this when the user wants a PNG and SVG QR image that displays plain text when scanned. Accepts up to 1,500 characters, preserves whitespace, and reports contrast, density and optional print width. Encoded UTF-8 content must fit 1,273–2,953 bytes depending on error correction. Static codes only; does not read QR images or make barcodes or Wi-Fi codes.

    Annotations the server declares

    • title: Generate text QR code
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
    • idempotentHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http qr-code-studio https://qr-code-studio.zovo.one/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [],
    "ask": [
      "mcp__qr-code-studio__generate_qr_code",
      "mcp__qr-code-studio__generate_text_qr_code"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as qr-code-studio. Review it before you use it.