QR

What This Skill Does

The QR skill for OpenClaw is a comprehensive tool designed to generate, customize, and manage QR codes for professional and personal use. Unlike basic generators, this skill enforces industry standards for readability and reliability. It manages error correction levels (L, M, Q, H), ensures strict color contrast requirements (minimum 70%), and guides users on optimal sizing based on real-world scan distances. Whether you are creating a simple URL link, a vCard contact, or complex configuration data for WiFi, this tool automates the technical configuration to ensure your codes are always functional.

Installation

To integrate the QR skill into your OpenClaw environment, execute the following command in your terminal: clawhub install openclaw/skills/skills/ivangdavila/qr Once installed, you can trigger the skill directly through your standard interaction interface.

Use Cases

This skill is built for versatility across various business and technical environments:

• Marketing: Generate codes for posters, table tents, and billboards with optimized density.
• Networking: Create vCard codes for digital business cards or WiFi access codes for guest networks.
• Asset Management: Deploy codes for physical inventory or equipment tracking that require high durability.
• Digital Transformation: Use dynamic URLs combined with error correction to ensure tracking links remain functional even with branding overlays.

Example Prompts

1. "Generate a QR code for my personal website at https://example.com, optimize it for a table tent, and use 25% error correction because I want to overlay a small company logo."
2. "Create a vCard QR code for my contact information including name, phone, and email. Ensure it meets the 70% contrast ratio for high-visibility printing."
3. "I need a QR code for a billboard scanning from 5 meters away. What size should I set it to, and can you generate the image for me?"

Tips & Limitations

To ensure success, always follow the scan distance formula: QR size = scan distance ÷ 10. Avoid using gradients or inverted colors, as these lead to frequent scan failures. Remember that excessive data density is the primary cause of scanning issues; if a code is difficult to read, use a URL shortener to reduce the payload. Always test your generated code with at least three different devices before sending it to a print production facility. When adding custom branding or logos, always increase the error correction to 'H' to maintain scan integrity.