pwa-development

Progressive Web App expert for the 2025-2026 baseline. Covers Web App Manifest (id, display_override, scope_extensions, handle_links, file_handlers, share_target), Service Workers (Workbox 7 / Serwist), Web Push (VAPID, RFC 8030/8291/8292, Declarative Push for Safari 18.4+), install flows (beforeinstallprompt, Window Controls Overlay), OPFS storage, Project Fugu capabilities, Core Web Vitals 2025 (INP < 200ms), security (HTTPS, CSP, COOP/COEP), and distribution (Bubblewrap to Google Play, PWA Builder to Microsoft Store, Capacitor to App Store, PWA Builder to Meta Quest). Includes the pwa-architect agent and three commands: /pwa-audit (hybrid local-code + live-URL via Playwright), /pwa-scaffold (manifest + SW + iOS meta + framework wiring for Vite, Next.js, Angular, Nuxt, vanilla), /pwa-checklist (deterministic production-deploy checklist walk).