onezion-daily-report

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name: onezion-daily-report description: Generate beautiful infographic posters (daily reports, data summaries, social media content) as HTML, then convert to high-res PNG via Puppeteer screenshot. Use when user wants a visual report, poster, or infographic to share on WeChat Moments, LinkedIn, or other social platforms. Trigger on: "daily report", "日报", "信息图", "infographic", "poster", "海报", "发圈", "social media graphic". allowed-tools: Bash, Read, Write, Edit, OpenResultView, PreviewUrl agent_created: true

Daily Report / Infographic Poster Skill

Generate beautiful HTML-based infographics and convert them to high-res PNG images for social media sharing.

Workflow

1. Generate HTML — Write a self-contained HTML file with inline styles, no external dependencies except Google Fonts
2. Preview — Use preview_url to show the user the HTML preview
3. Screenshot — Use Puppeteer to capture a 2x retina PNG
4. Deliver — Use open_result_view to present the final image

Step 1: Create HTML poster

Design principles:

• Use a single self-contained HTML file
• Inline all CSS (no external stylesheets except Google Fonts)
• Use Google Fonts CDN for typography (Noto Sans SC for Chinese, Inter for English)
• Dark gradient background (navy → deep purple) works well for social media
• Use CSS gradient text for titles
• Color-coded sections with distinct icons/labels
• Stats row at the top with big numbers
• Keep width at 720px (standard for mobile-friendly sharing)
• Use deviceScaleFactor: 2 for retina quality

Color palette:

• Background: linear-gradient(175deg, #0d1b3e, #15103a, #1a0e35, #0d0a2a)
• Purple accents: #a78bfa, #c7d2fe
• Green (success): #34d399
• Amber (pending): #fbbf24
• Pink (highlight): #f472b6
• Blue (info): #60a5fa
• Cyan (secondary): #22d3ee

Step 2: Take screenshot with Puppeteer

Prerequisites: puppeteer-core must be installed in the workspace.

npm install puppeteer-core

Screenshot script template (screenshot.js):

const puppeteer = require('puppeteer-core');
(async () => {
  const browser = await puppeteer.launch({
    executablePath: '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome',
    headless: 'new',
    args: ['--no-sandbox', '--disable-setuid-sandbox']
  });
  const page = await browser.newPage();
  await page.setViewport({ width: 720, height: 2000, deviceScaleFactor: 2 });
  await page.goto('file:///ABSOLUTE_PATH_TO_HTML', { waitUntil: 'networkidle0', timeout: 30000 });
  await page.evaluate(() => document.fonts.ready);
  const poster = await page.$('.poster');
  await poster.screenshot({ path: '/ABSOLUTE_PATH_TO_OUTPUT.png', type: 'png' });
  console.log('Screenshot saved!');
  await browser.close();
})();

Run: node screenshot.js

Step 3: Deliver

Use open_result_view on the PNG file, then use deliver_attachments to send to user.

Key rules

1. Width always 720px — optimal for WeChat Moments and most social platforms
2. Always use .poster class on the main container so the screenshot script can target it
3. Always wait for fonts — document.fonts.ready ensures Google Fonts are loaded before capture
4. deviceScaleFactor: 2 — produces 1440px wide retina images
5. Inline everything — no external CSS/JS except Google Fonts CDN
6. Test with preview_url first before screenshotting

Platform-specific notes

• macOS: Chrome path is /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
• Windows: Chrome path varies, check where chrome or common paths
• WeChat Moments: 720px width is ideal, vertical format preferred
• LinkedIn: Both 720px and 1080px work
• Twitter/X: 1200×675 or 1080×1080 for square