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Install in OpenClaw
/install qrcode-skill
Description
QR code generation and decoding skill. Use when: generating QR codes from text/URLs, decoding/reading/parsing QR codes from images, creating scannable QR cod...
Usage Guidance
This skill delegates QR generation/decoding to a remote service (https://qrcode.api4claw.com/mcp) and will send whatever text or image you provide to that endpoint. Before using it: (1) confirm you trust that domain/operator, (2) avoid sending secrets or sensitive images (passwords, private QR codes, PII), (3) if you need offline or more private processing, use a local tool (e.g., qrencode/qrcode libraries or zxing) instead, and (4) review or validate the MCP server URL in your agent configuration to ensure it points to the intended service.
Capability Analysis
Type: OpenClaw Skill
Name: qrcode-skill
Version: 0.1.0
The skill provides QR code generation and decoding functionality by interfacing with a remote MCP server at `https://qrcode.api4claw.com/mcp`. All operations, including sending text/images to the external API and writing generated images to the workspace, are clearly documented in `SKILL.md` and `references/mcp-api.md` and are directly aligned with the stated purpose. No evidence of data exfiltration, obfuscation, or malicious intent was found.
Capability Assessment
Purpose & Capability
The name/description (generate and decode QR codes) matches the runtime instructions and the referenced MCP tools (generate_qr_code, decode_qr_code). The skill only requires configuring an MCP server URL and does not request unrelated binaries, environment variables, or config paths.
Instruction Scope
Instructions are narrowly scoped to QR operations: asking for text/URL input, accepting an image via file path/base64/paste, reading a workspace file to convert to base64, calling the remote MCP tools, and optionally writing a PNG file. These file reads/writes and the network calls are expected for the stated purpose, but they do transmit user-provided text/images to the external MCP endpoint (https://qrcode.api4claw.com/mcp), so user data will leave the local environment.
Install Mechanism
Instruction-only skill with no install spec and no code files — minimal local footprint and no packages or downloads. This is the lowest-risk installation pattern.
Credentials
The skill declares no required environment variables, credentials, or config paths. It does require the agent be configured with an MCP server entry (a URL), which is proportionate to the described remote-service design.
Persistence & Privilege
always:false and no special privileges requested. The skill does not modify other skills or system-wide settings and does not request permanent elevated presence.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install qrcode-skill - After installation, invoke the skill by name or use
/qrcode-skill - Provide required inputs per the skill's parameter spec and get structured output
Version History
v0.1.0
Initial release of qrcode-skill:
- Generate QR codes from text or URLs as PNG images (base64-encoded) via a remote MCP service.
- Decode QR code images to extract embedded text (supports image file, base64 string, or chat image).
- User instructions and error handling for character and image limits.
- Configuration and API reference included in documentation.
- Ready for user-invocable QR code operations.
Metadata
Frequently Asked Questions
What is Qrcode Skill?
QR code generation and decoding skill. Use when: generating QR codes from text/URLs, decoding/reading/parsing QR codes from images, creating scannable QR cod... It is an AI Agent Skill for Claude Code / OpenClaw, with 250 downloads so far.
How do I install Qrcode Skill?
Run "/install qrcode-skill" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Qrcode Skill free?
Yes, Qrcode Skill is completely free, licensed under MIT-0. You can download, install and use it at no cost.
Which platforms does Qrcode Skill support?
Qrcode Skill is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Qrcode Skill?
It is built and maintained by Marc Chen (@marc-chen); the current version is v0.1.0.
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