Agent skill · Audited from source

Pwa Development

skill · alinaqi/claude-bootstrapMIT licenceAudited 14 Oct 2026 · source ea59a0c53d79

★ 707pushed today
✓SAFEGrade B · 89/100 · 14 Oct 2026 · ea59a0c
707repo stars · whole alinaqi/claude-bootstrap

Is it safe? Yes — SAFE, grade B (89/100). We read this skill's source at commit ea59a0c53d79 and found no filesystem, network or shell access and no hard-coded secrets. What it does: Progressive Web Apps - service workers, caching strategies, offline, Workbox

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Cite this page

ModelsAtlas. “Pwa Development (alinaqi/claude-bootstrap)”. Retrieved 14 Oct 2026. https://modelsatlas.com/skills/alinaqi/pwa-development

Trust audit

Audit 0.4.1 · source read 14 Oct 2026

Trust score89/100✓SAFE B
0 critical0 high0 medium0 low0 info

SAFE means nothing in the source contradicts what the skill says it does. Grade B is shared by 13,985 of 14,816 audited skills.

What the source does

  • FilesystemNone observedNo reads or writes in the source
  • NetworkNone observedNo outbound calls in the source
  • ShellNone observedNo commands run in the source
  • DependenciesPinnedNothing floats
  • SecretsNone foundNo keys in source

Five audit layers

LayerWhat we checkResultFindings
L0 ProvenanceRepo owner, licence, archive status, activityPASS0
L1 Static sourceSecrets, path traversal, supply chain, hidden codeNA0
L2 InstructionsPrompt injection, authority framing, hidden directivesPASS0
L3 InventoryThe files and declarations match the sourcePASS0
L4 SandboxRun in isolation and watch behaviourSKIPPED why0

Gates applied: no behavioural pass.

Findings (0)

No findings at any severity. We re-audit when the source changes.

Audit 0.4.1 · source sha ea59a0c53d79 · 14 Oct 2026Report an issue or request a re-scan

Provenance

Who published it, and what the verdict is pinned to

  • Publisheralinaqi GitHub userOwner of the repository this skill is read from
  • Source folderalinaqi/claude-bootstrap/skills/pwa-developmentThe exact folder we audited
  • LicenceMITAs the repository states it
  • Commit pinned for this verdictea59a0c53d79A new audit runs when the source changes
  • Repository statusNot archivedPushed today
  • Sandboxed runNot runSkills are read, not executed; layer L4 is skipped

What it tells the agent

Full source on GitHub ↗

Its description: Progressive Web Apps - service workers, caching strategies, offline, Workbox

---
name: pwa-development
description: Progressive Web Apps - service workers, caching strategies, offline, Workbox
when-to-use: When building PWA features - service workers, caching, offline support
user-invocable: false
paths: ["**/sw.*", "**/service-worker.*", "**/workbox-config.*", "**/manifest.json"]
effort: medium
---

# PWA Development Skill


**Purpose:** Build Progressive Web Apps that work offline, install like native apps, and deliver fast, reliable experiences across all devices.

---

## Core PWA Requirements

```
┌─────────────────────────────────────────────────────────────────┐
│  THE THREE PILLARS OF PWA                                       │
│  ─────────────────────────────────────────────────────────────  │
│                                                                 │
│  1. HTTPS                                                       │
│     Required for service workers and security.                  │
│     localhost allowed for development.                          │
│                                                                 │
│  2. SERVICE WORKER                                              │
│     JavaScript that runs in background.                         │
│     Enables offline, caching, push notifications.               │
│                                                                 │
│  3. WEB APP MANIFEST                                            │
│     JSON file describing app metadata.                          │
│     Enables installation and app-like experience.               │
├─────────────────────────────────────────────────────────────────┤
│  INSTALLABILITY CRITERIA (Chrome)                               │
│  ─────────────────────────────────────────────────────────────  │
│  • HTTPS (or localhost)                                         │
│  • Service worker with fetch handler                            │
│  • Web app manifest with: name, icons (192px + 512px),          │
│    start_url, display: standalone/fullscreen/minimal-ui         │
└─────────────────────────────────────────────────────────────────┘
```

---

## Web App Manifest

### Required Fields

```json
{
  "name": "My Progressive Web App",
  "short_name": "MyPWA",
  "description": "A description of what the app does",
  "start_url": "/",
  "display": "standalone",
  "background_color": "#ffffff",
  "theme_color": "#000000",
  "icons": [
    {
      "src": "/icons/icon-192.png",
      "sizes": "192x192",
      "type": "image/png"
    },
    {
      "src": "/icons/icon-512.png",
      "sizes": "512x512",
      "type": "image/png"
    },
    {
      "src": "/icons/icon-512-maskable.png",
      "sizes": "512x512",
      "type": "image/png",
      "purpose": "maskable"
    }
  ]
}
```

### Enhanced Manifest (Full Features)

```json
{
  "name": "My Progressive Web App",
  "short_name": "MyPWA",
  "description": "A full-featured PWA",
  "start_url": "/?source=pwa",
  "scope": "/",
  "display": "standalone",
  "orientation": "portrait-primary",
  "background_color": "#ffffff",
  "theme_color": "#3367D6",
  "dir": "ltr",
  "lang": "en",
  "categories": ["productivity", "utilities"],

  "icons": [
    { "src": "/icons/icon-72.png", "sizes": "72x72", "type": "image/png" },
    { "src": "/icons/icon-96.png", "sizes": "96x96", "type": "image/png" },
    { "src": "/icons/icon-128.png", "sizes": "128x128", "type": "image/png" },
    { "src": "/icons/icon-144.png", "sizes": "144x144", "type": "image/png" },
    { "src": "/icons/icon-152.png", "sizes": "152x152", "type": "image/png" },
    { "src": "/icons/icon-192.png", "sizes": "192x192", "type": "image/png" },
    { "src": "/icons/icon-384.png", "sizes": "384x384", "type": "image/png" },
    { "src": "/icons/icon-512.png", "sizes": "512x512", "type": "image/png" },
    { "src": "/icons/icon-maskable.png", "sizes": "512x512", "type": "image/png", "purpose": "maskable" }
  ],

  "screenshots": [
    {
      "src": "/screenshots/desktop.png",
      "sizes": "1280x720",
      "type": "image/png",
      "form_factor": "wide"
    },
    {
      "src": "/screenshots/mobile.png",
      "sizes": "750x1334",
      "type": "image/png",
      "form_factor": "narrow"
    }
  ],

  "shortcuts": [
    {
      "name": "New Item",
      "short_name": "New",
      "description": "Create a new item",
      "url": "/new?source=shortcut",
      "icons": [{ "src": "/icons/shortcut-new.png", "sizes": "192x192" }]
    }
  ],

  "share_target": {
    "action": "/share",
    "method": "POST",
    "enctype": "multipart/form-data",
    "params": {
      "title": "title",
      "text": "text",
      "url": "url",
      "files": [{ "name": "files", "accept": ["image/*"] }]
    }
  },

  "protocol_handlers": [
    {
      "protocol": "web+myapp",
      "url": "/handle?url=%s"
    }
  ],

  "file_handlers": [
    {
      "action": "/open-file",
      "accept": {
        "text/plain": [".txt"]
      }
    }
  ]
}
```

### Manifest Checklist

- [ ] `name` and `short_name` defined
- [ ] `start_url` set (use query param for analytics)
- [ ] `display` set to `standalone` or `fullscreen`
- [ ] Icons: 192x192 and 512x512 minimum
- [ ] Maskable icon included for Android adaptive icons
- [ ] `theme_color` matches app design
- [ ] `background_color` for splash screen
- [ ] Screenshots for richer install UI (optional)
- [ ] Shortcuts for quick actions (optional)

---

## Service Worker Patterns

### Basic Service Worker

```javascript
// sw.js
const CACHE_NAME = 'app-cache-v1';
const STATIC_ASSETS = [
  '/',
  '/index.html',
  '/styles/main.css',
  '/scripts/app.js',
  '/offline.html'
];

// Install: Cache static assets
self.addEventListener('install', (event) => {
  event.waitUntil(
    caches.open(CACHE_NAME)
      .then((cache) => cache.addAll(STATIC_ASSETS))
      .then(() => self.skipWaiting())
  );
});

// Activate: Clean old caches
self.addEventListener('activate', (event) => {
  event.waitUntil(
    caches.keys()
      .then((keys) => Promise.all(
        keys
        

Excerpt, first 6,000 characters of SKILL.md, verbatim from the audited commit. It is text from someone else’s repository, quoted so you can judge it before your agent reads it.

Install

Pinned to the audited commit ea59a0c

Download folder ↗
npm install workbox-webpack-plugin  # Webpack
npm install @vite-pwa/vite-plugin   # Vite
npm install next-pwa
npm install vite-plugin-pwa -D

Commands as the repository documents them: shown, never run by us. Our verdict covers commit ea59a0c53d79 only.

Works in which agents?

What its own text says, not a test

AgentStatusMore
CursorMentioned in its text, not testedSkills for Cursor · About Cursor
“Mentioned” means the skill’s text names the agent. We have not run it there.

Audit history

Every audit, every source change

  1. ✓SAFE B 89 / 100

    first audit · source ea59a0c53d79

README badge

For maintainers · shows the latest audit

ModelsAtlas: SAFE BMODELSATLASSAFE · B
[![ModelsAtlas: SAFE B](https://modelsatlas.com/skills/alinaqi/pwa-development/badge.svg)](https://modelsatlas.com/skills/alinaqi/pwa-development/)

The badge shows our verdict and grade for this skill, and links back to this page. It changes when the audit does.

Add this badge to your README

[![ModelsAtlas: SAFE B](https://modelsatlas.com/skills/alinaqi/pwa-development/badge.svg)](https://modelsatlas.com/skills/alinaqi/pwa-development/)

Questions about Pwa Development

What does the Pwa Development skill do?
What started as an opinionated Claude Code setup kit is now an autonomous AI engineering command center
Is Pwa Development safe to install?
The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean skill reads B.
What can Pwa Development access on my machine?
The audit observed no filesystem, network or shell use at all in its source.
Which assistants does Pwa Development work with?
Its documentation mentions cursor. That is what the text claims, not a compatibility test we ran.
How current is this page?
The grade is for one exact copy of the source (ea59a0c53d79), read on 2026-10-14. The repository is watched, and a new audit runs when it changes — this is the first audit.

Sources

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