u-claw/portable/skills/en/qrcode-maker/SKILL.md

name, description, metadata

name	description	metadata
qrcode-maker	QR code generator - turn links, text or WiFi details into a QR image. Fully offline.	openclaw emoji 🔳

QR Code Generator

Turn links, text, contact details or WiFi credentials into a QR code image. Generated offline — nothing is sent anywhere.

What it does

• Link / text codes: any content to a PNG
• WiFi codes: scan to join, no typing the password
• Terminal preview: render the code as ASCII art in the conversation

How to run it

Use the Bash tool with Python's qrcode library — small and fully local.

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

# Link or text -> PNG
python - <<'PY'
import qrcode
qrcode.make("https://u-claw.org").save("qrcode.png")
print("saved -> qrcode.png")
PY

# WiFi code (scan to connect)
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("saved WiFi code -> wifi-qr.png")
PY

# ASCII preview, no file written
python - <<'PY'
import qrcode
q = qrcode.QRCode(); q.add_data("https://u-claw.org"); q.make()
q.print_ascii(invert=True)
PY

Working notes

• Confirm what the user wants encoded, and whether they want a file saved
• After generating, use the Read tool to show the PNG back to the user
• Long content produces a dense, hard-to-scan code — suggest a short link instead
• WiFi passwords are credentials: write them to the local PNG only, never echo them into a message or a filename