qrcode-maker

qrcode-maker is a skill for Claude Code, Codex from dongsheng123132/u-claw. It costs 24 tokens per session (456 once invoked), scanned A, original, MIT.

A local, offline QR-code generator for websites, text, contact details, and Wi-Fi connection information. A QR code is a square image that phones can scan to read stored data.

In plain words
What is it for?
It helps save QR codes as PNG images, generate Wi-Fi connection codes, and preview codes directly in a terminal.
Why use it?
It creates codes without uploading the encoded information to a remote service.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for openclaw. Also seen: built for openclaw.

Good fit It helps save QR codes as PNG images, generate Wi-Fi connection codes, and preview codes directly in a terminal.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dongsheng123132/u-claw/qrcode-maker
About the project

U-Claw is a portable AI workspace that places an OpenClaw assistant, its configuration, memory, sessions, and tools on a USB drive. Users set it up on supported computers and carry the workspace between them, configuring a model with their own API key. The catalogue contains skills and instructions related to using or preparing this portable setup.

dongsheng123132/u-claw · 1,746 stars · on GitHub · u-claw.org

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add dongsheng123132/u-claw --skill qrcode-maker
Clone the repo
git clone --depth 1 https://github.com/dongsheng123132/u-claw

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for qrcode-maker

README.md
[![agentmods](https://agentmods.dev/badge/skills/dongsheng123132/u-claw/qrcode-maker/github.svg)](https://agentmods.dev/skills/dongsheng123132/u-claw/qrcode-maker)
Your own site
<a href="https://agentmods.dev/skills/dongsheng123132/u-claw/qrcode-maker"><img src="https://agentmods.dev/badge/skills/dongsheng123132/u-claw/qrcode-maker/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for qrcode-maker

Your own site · 80×15
<a href="https://agentmods.dev/skills/dongsheng123132/u-claw/qrcode-maker"><img src="https://agentmods.dev/badge/skills/dongsheng123132/u-claw/qrcode-maker.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 456 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00024 $0.00456
Opus 5 $0.00012 $0.00228
Sonnet 5 $0.00005 $0.00091
Haiku 4.5 $0.00002 $0.00046

Measured 10d ago against content hash eb43aa3af2fb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

qrcode-maker scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

portable/skills-cn/qrcode-maker/SKILL.md · 53 lines

What it actually says

二维码生成

帮用户把网址、文本、联系方式、WiFi 信息生成二维码图片,本地离线生成,不上传任何数据。

能力概述

  • 网址/文本二维码:任意内容转二维码 PNG
  • WiFi 二维码:扫码即连,免手输密码
  • 终端预览:直接在对话里用字符画展示二维码

操作方式

用 Bash 工具,Python 的 qrcode 库(轻量、纯本地):

python -c "import qrcode" 2>/dev/null || pip install -q "qrcode[pil]"

# 网址/文本 -> PNG
python - <<'PY'
import qrcode
qrcode.make("https://u-claw.org").save("qrcode.png")
print("已生成 -> qrcode.png")
PY

# WiFi 二维码(扫码自动连网)
python - <<'PY'
import qrcode
ssid, pwd, enc = "MyWiFi", "password123", "WPA"   # enc: WPA / WEP / nopass
data = f"WIFI:T:{enc};S:{ssid};P:{pwd};;"
qrcode.make(data).save("wifi-qr.png")
print("已生成 WiFi 二维码 -> wifi-qr.png")
PY

# 终端字符画预览(不存文件,直接看)
python - <<'PY'
import qrcode
q = qrcode.QRCode(); q.add_data("https://u-claw.org"); q.make()
q.print_ascii(invert=True)
PY

使用建议

  • 先确认用户要编码的内容、是否保存为文件
  • 生成后用 Read 工具把 PNG 展示给用户看
  • 内容过长(如整段文字)二维码会很密集,提示用户改用短链
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 53 lines · 24 tokens per session scan A eb43aa3af2fb

Subscribe to this mod's changes

qrcode-maker is a skill published in the GitHub repository dongsheng123132/u-claw (1,746 stars, last pushed 2d ago), licensed MIT. It adds 24 tokens to every session and 456 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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