Tencent SkillHub · Other

QRCode

Generate styled QR codes (SVG/PNG/JPG) from user input. Supports custom module color, background, dot shape and eye shape, and many output options.

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High Signal

Generate styled QR codes (SVG/PNG/JPG) from user input. Supports custom module color, background, dot shape and eye shape, and many output options.

⬇ 0 downloads ★ 0 stars Unverified but indexed

Install for OpenClaw

Quick setup

Download the package from Yavira.
Extract the archive and review SKILL.md first.
Import or place the package into your OpenClaw setup.

Requirements

Target platform: OpenClaw
Install method: Manual import
Extraction: Extract archive
Prerequisites: OpenClaw
Primary doc: SKILL.md

Package facts

Download mode: Yavira redirect
Package format: ZIP package
Source platform: Tencent SkillHub
What's included: package.json, SKILL.md, scripts/generate.mjs

Validation

Use the Yavira download entry.
Review SKILL.md after the package is downloaded.
Confirm the extracted package contains the expected setup assets.

Install with your agent

Agent handoff

Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.

Download the package from Yavira.
Extract it into a folder your agent can access.
Paste one of the prompts below and point your agent at the extracted folder.

New install

I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.

Upgrade existing

I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.

Open Send to Agent page Open JSON manifest Open Markdown brief

Trust & source

Release facts

Source: Tencent SkillHub
Verification: Indexed source record
Version: 1.0.1

Provenance

Publisher: HeXavi8
Source page: View original listing
Canonical URL: Open canonical page

Documentation

ClawHub primary doc Primary doc: SKILL.md 20 sections Open source page

QRCode Generator

Generate customizable QR codes from text or URLs. Supports multiple formats (SVG/PNG/JPG) with styling options.

Agent Instructions

After generating QR codes, you MUST: Display the generated file using appropriate markdown syntax: For images (PNG/JPG): ![QR Code](sandbox:/path/to/file.png) For SVG: Display as image or provide download link Confirm the file path and format to the user Offer to regenerate with different styling if needed

Quick Start

# Basic usage (auto-generated filename) node {baseDir}/scripts/generate.mjs "Hello World" # Custom styled QR code node {baseDir}/scripts/generate.mjs "https://example.com" -o myqr.svg --dot circle --eye rounded --color "#2563eb" # High-resolution transparent PNG node {baseDir}/scripts/generate.mjs "Contact Info" --format png --size 2048 --transparent # Print-quality JPEG node {baseDir}/scripts/generate.mjs "https://example.com" --format jpg -o qr.jpg --size 2048 --quality 95

Output

-o, --out <filename> - Output filename (workspace root only). Default: qrcode_<text>_<timestamp>.<ext> --format <svg|png|jpg> - Output format (default: svg)

Dimensions

--size <px> - Base pixel size (default: 1024, max: 10000) --scale <n> - Resolution multiplier (default: 1, max: 10) --margin <modules> - Quiet zone size (default: 4, max: 100)

Styling

--dot <square|circle> - Data module shape (default: square) --eye <square|circle|rounded> - Finder pattern style (default: square) --color <#RRGGBB> - Foreground color (default: #000000) --background <#RRGGBB> - Background color (default: #ffffff) --transparent - Transparent background (PNG only, ignored for SVG/JPG)

Quality

--ec <L|M|Q|H> - Error correction: Low/Medium/Quality/High (default: M) L (~7%): Clean environments, maximum data capacity M (~15%): General use, balanced capacity/reliability Q (~25%): Styled QR codes, moderate damage tolerance H (~30%): Logo embedding, heavy styling, outdoor use --quality <1-100> - JPEG compression quality (default: 80)

File Handling

Security-enforced workspace root output: All files saved to workspace root directory only Path components stripped: -o ../path/file.svg → workspace/file.svg Auto-generated filenames include sanitized text and timestamp Maximum text length: 4096 characters

Installation

cd {baseDir} npm install Dependencies: qrcode (matrix generation), sharp (image conversion) Platform notes: macOS requires Xcode Command Line Tools. See sharp docs for other platforms.

WiFi QR Code

node {baseDir}/scripts/generate.mjs "WIFI:S:MyNetwork;T:WPA;P:password123;;" --format png -o wifi.png --size 1024

Styled Business Card

node {baseDir}/scripts/generate.mjs "BEGIN:VCARD VERSION:3.0 FN:John Doe TEL:+1234567890 EMAIL:john@example.com END:VCARD" --dot circle --eye rounded --color "#1e40af" --background "#eff6ff" -o contact.svg

High-Resolution Print

node {baseDir}/scripts/generate.mjs "https://example.com" --format jpg --size 4096 --quality 95 --ec H -o print.jpg

Transparent Logo Overlay

node {baseDir}/scripts/generate.mjs "https://example.com" --format png --size 2048 --transparent --margin 2 -o overlay.png

Logo Embedding (Requires High Error Correction)

# Use --ec H when QR code will have logo overlay (covers ~20-30% of center) node {baseDir}/scripts/generate.mjs "https://example.com" --format png --size 2048 --ec H -o logo-base.png

Security Features

✅ Path traversal protection - All outputs forced to workspace root ✅ Symlink attack prevention - Atomic writes with verification ✅ Input validation - Length limits (4096 chars), character whitelisting ✅ Filename sanitization - Dangerous characters stripped from filenames ✅ Resource limits - Max size/scale to prevent DoS attacks

Troubleshooting

IssueSolutionnpm install failsInstall build tools:xcode-select --install (macOS) or see sharp install guideQR code won't scanIncrease --size, use higher error correction (--ec H), or simplify stylingColors not workingUse hex format #RRGGBB (e.g., #FF5733), not RGB or color namesFile too largeReduce --size, --scale, or increase --quality for JPGPermission deniedCheck workspace directory write permissions

Error Correction Levels Explained

Error correction allows QR codes to remain scannable even when partially damaged or obscured: LevelRecovery CapacityData CapacityUse CaseL~7% damageMaximumClean environments, screen display, maximum dataM~15% damageHighGeneral use (default), standard printingQ~25% damageMediumStyled designs (circles/rounded), possible minor damageH~30% damageMinimumLogo embedding, outdoor use, heavy styling, print-on-print Key principle: Higher error correction = more damage tolerance but less data capacity. When to use H level: Embedding logos (covers 20-30% of center) Circular dots or rounded eyes Outdoor/weathered environments Low-quality printing Stickers that may peel/scratch

Format Comparison

FormatTransparencyQualityFile SizeUse CaseSVG✅InfiniteSmallestWeb, scalable graphicsPNG✅LosslessMediumDigital displays, overlaysJPG❌LossySmallest*Print, photos, email *With compression

Tips

Scanning distance: Use --size 1024 for mobile (1-2m), --size 2048+ for print/posters Styling vs. reliability: Higher --ec levels compensate for --dot circle or --eye rounded Transparent backgrounds: Use PNG format with --transparent; JPG always uses white/specified background File size optimization: SVG for web, JPG with --quality 80-85 for print Data capacity: L/M/Q/H levels affect max alphanumeric capacity: ~4296/3391/2420/1852 chars (Version 40) Logo placement: Use --ec H and leave center area clear (approximately 30% of QR code)

Common Use Cases

ScenarioRecommended SettingsWebsite URL--format png --size 1024 --ec MWiFi credentials--format png --size 1024 --ec MBusiness card (vCard)--format svg --dot circle --eye rounded --ec QPrint poster--format jpg --size 4096 --quality 95 --ec HLogo overlay base--format png --size 2048 --ec H --transparentEmail signature--format png --size 512 --ec MProduct packaging--format svg --ec H (scalable for any print size)Outdoor signage--format jpg --size 2048+ --ec H --quality 90Social media profile--format png --size 1024 --transparent --dot circle --ec QPayment QR (high density)--format png --size 2048 --ec L --margin 2 (maximize capacity)

Category context

Long-tail utilities that do not fit the current primary taxonomy cleanly.

Source: Tencent SkillHub

Largest current source with strong distribution and engagement signals.

Package contents

Included in package

1 Docs1 Scripts1 Config

SKILL.md Primary doc
scripts/generate.mjs Scripts
package.json Config