PWA

manifest.json, a service worker, an install prompt, and an offline route — the installable-app kit.

npx skills add drmrduck/skills@pwa

View SKILL.md on GitHub ↗drmrduck/skills@pwa

PWA & Manifest

Ship the installable-app kit into the project.

Steps

manifest.json — name/short_name, start_url, display: standalone, theme + background colors, and maskable icons at 192 and 512 (generate them if missing). Link it from the head / framework metadata.
Service worker — register one with an offline fallback route and a sane caching strategy (network-first for docs, cache-first for static). Use the framework`s PWA integration when it has one.
Install prompt — a small, dismissable add-to-home-screen component that listens for beforeinstallprompt.
Offline page — a real route shown when the network drops.

Verify

Manifest is valid JSON with 192 + 512 icons and a non-browser display mode.
App loads offline after first visit.
Score it at https://pwa.tools.drummerduck.com

Related skills

Generate + install a complete favicon / app-icon / PWA stack (ico, every PNG size, apple-touch, theme-aware light/dark, per-environment variants, manifest) from an emoji, named icon, logo, or URL — written straight into the project.

faviconpwaicons

A dynamic opengraph-image route + per-page og:/twitter: tags so links unfurl correctly in Slack, iMessage, X, and LinkedIn.

Correct <title>/description/canonical/Open Graph + valid JSON-LD schema on every route — audited and patched in place.

seoschemajson-ldmeta

Tailored /privacy and /terms pages and a cookie-consent component, matched to what the app actually does.

legalprivacytermscookies