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Pwa Installability

Development
pwa-installability

Pwa Installability is an Agent Skill for development published in the thedaviddias/Front-End-Checklist repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.

Use when auditing PWA readiness, adding an install prompt, or preparing a web app for submission to Microsoft Store or Google Play via PWA Builder.

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QUICK START

How to use this skill

Bring this guide into your coding agent with a prompt tailored to the tool you use.

  1. Open your project in Codex.
  2. Copy and paste the prompt below.
  3. Review files and risks before approving any action.
Prompt to paste
Inspect the Agent Skill at https://github.com/thedaviddias/Front-End-Checklist/blob/HEAD/skills/pwa-installability/SKILL.md and all supporting files. Report provenance, permissions, scripts, dependencies, and security risks. Propose an exact installation into .agents/skills/pwa-installability, but wait for my approval before writing files or running scripts.

Copying this prompt does not install or run the skill. Review third-party files before use.

Meet PWA installability criteria

Installable PWAs appear in the browser's address bar install prompt and in app stores, giving users a native-app experience without an app store listing. Studies consistently show that installed PWAs have higher engagement and retention than browser-only equivalents — users who install spend 3× more time in the app on average.

Quick Reference

  • Serve the app over HTTPS (required by browsers)
  • Link a valid web app manifest with name, icons, start_url, and display
  • Provide a 192×192 and 512×512 icon; add a maskable variant for Android
  • Register a service worker that responds with 200 when offline

Check

Check whether this site meets the PWA installability criteria: HTTPS, valid manifest, service worker, and appropriate icons.

Fix

Add or fix the web app manifest, ensure a service worker is registered, and provide correctly sized maskable icons.

Explain

Explain what makes a web app installable as a PWA and what the manifest display modes mean for the user experience.

Code Review

Review the manifest.json and icon assets. Flag missing required fields, incorrect icon sizes, absent maskable icons, and any mismatch between start_url and the actual app root.

For full implementation details, code examples, and framework-specific guidance, see references/rule.md.

Rule page: https://frontendchecklist.io/en/rules/html/pwa-installability