| name | prod-page-audit |
| description | Run a production readiness audit on a web page or site and fix the gaps it finds โ covering SEO, favicon, Open Graph / social previews, and mobile optimization. Use whenever the user asks for a production check, launch checklist, SEO or OG audit, mobile readiness check, mentions going live, or asks about favicon, meta tags, social previews, or viewport issues.
|
Production Page Check
Audit + auto-fix workflow for web pages before they go to production.
| Area | What's checked | Auto-fix? |
|---|
| SEO | Title, description, semantic HTML, canonical, robots | Fix meta; flag structural issues |
| Favicon | Presence, sizes, formats, manifest | Generate if missing |
| Open Graph | og: tags, Twitter Card, image dimensions | Generate OG image if missing |
| Mobile | Viewport, font sizes, input zoom, touch targets | Fix in-place where possible |
Step 0 โ Understand the target
- Input type: file path / project directory โ read source directly; URL โ fetch or ask for the HTML.
- Page type: landing, blog post, product, portfolio โ determines what the OG image and favicon should look like.
- Brand context: colors, logo, name โ pull from CSS variables,
<meta>, or ask.
If ambiguous, ask one focused question before proceeding.
Step 1 โ SEO
Check:
<title>: exists, 50โ60 chars, descriptive and unique<meta name="description">: exists, 120โ160 chars, action-oriented<link rel="canonical"> present; <meta name="robots"> not accidentally noindex- Single
<h1>, logical heading nesting
- Images have meaningful
alt; links have descriptive text (not "click here")
- Landmarks:
<header>, <main>, <footer>, <nav>, <article>/<section> where appropriate
<html lang="..."> set- JSON-LD structured data if applicable (article, product, local business)
Fix: add/rewrite title, description, canonical, and lang inline. Add missing alt with descriptive placeholders marked <!-- TODO: update alt -->. Flag structural issues (heading hierarchy, missing <main>) with a TODO comment and suggested fix โ don't restructure HTML blindly.
Step 2 โ Favicon
Check: <link rel="icon"> exists; sizes 16/32 (ICO or PNG), 180 (apple-touch-icon), 192 + 512 (PWA manifest); <link rel="manifest"> if PWA icons expected; SVG favicon for modern browsers.
Fix if missing:
- Extract brand identity: primary color from CSS custom properties or dominant styles; initials from
<title> / og:site_name; any existing logo SVG.
- Generate an SVG favicon โ brand initial(s) on a rounded rect in the primary color.
- Save as
favicon.svg; convert to PNG/ICO with sharp, Jimp, or Pillow if available, otherwise note conversion is a build-time step.
- Inject the standard
<head> links: SVG icon, 32ร32 PNG, apple-touch-icon, manifest.
- Generate
site.webmanifest if missing (name, short_name, 192/512 icons, theme/background color, display: standalone).
Step 3 โ Open Graph & social previews
Check: og:title, og:description, og:image (absolute URL, 1200ร630), og:url (canonical), og:type, og:site_name; Twitter Card tags (twitter:card, twitter:title, twitter:description, twitter:image).
Fix if missing: derive basic OG tags from existing meta content. If og:image is missing or placeholder, generate one:
- Pick the source by page type: article โ hero image; product โ product image; landing/portfolio โ generate a branded card.
- Generate at 1200ร630 with ~60px safe-zone padding: brand background, logo, title (max 2 lines), subtitle, site name/URL in a corner. Use sharp + resvg, Pillow, or an HTML template screenshot at build time โ whatever the project supports.
- Save under
/public/og/ and inject og:image (+ width/height) and twitter:card: summary_large_image.
Step 4 โ Mobile
Check:
<meta name="viewport" content="width=device-width, initial-scale=1"> โ and no user-scalable=no / maximum-scale=1 (accessibility violation)- All
<input>/<select>/<textarea> have font-size โฅ 16px โ iOS Safari zooms on focus below that; the most common overlooked issue
- No fixed widths wider than the viewport; images
max-width: 100%; no horizontal scroll at 375px
@media coverage: โค640px and โค1024px if the layout is complex- Touch targets โฅ 44ร44px with โฅ 8px gaps
- Typography: base โฅ 16px, line-height โฅ 1.5, nothing below 12px
- Performance (flag, don't fix): image
width/height attributes (CLS), loading="lazy" below the fold, defer/async on scripts
Fix: add/correct the viewport meta; add input, select, textarea { font-size: max(16px, 1rem); } if missing; add missing max-width: 100% on images; flag touch-target issues with specific selectors and suggested fixes.
Step 5 โ Report
## Production Readiness Report โ [Page Title]
SEO [score /10] โ โ
/โ ๏ธ/โ per item, one line each
Favicon [PASS / GENERATED / FAIL]
Open Graph [PASS / GENERATED / FAIL]
Mobile [score /10]
### Changes made
- [files modified or created]
### Still needs human attention
- [items requiring manual decision or content]
Notes & edge cases
- Framework-specific: Next.js โ
metadata exports in app/layout.tsx; Nuxt โ useHead() / useSeoMeta(). Fix via the framework-idiomatic pattern, not raw HTML.
- Dynamic OG images: if the project uses
@vercel/og or similar, audit the template instead of replacing it.
- i18n: multiple languages โ recommend
hreflang alternates.
- Dark mode: suggest an SVG favicon with a
prefers-color-scheme media query inside the SVG.
robots.txt / sitemap.xml: mention if missing, but don't generate unless asked.
