Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add alinaqi/maggy --skill pwa-developmentgit clone --depth 1 https://github.com/alinaqi/maggyWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/alinaqi/maggy/pwa-development)<a href="https://agentmods.dev/skills/alinaqi/maggy/pwa-development"><img src="https://agentmods.dev/badge/skills/alinaqi/maggy/pwa-development/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/alinaqi/maggy/pwa-development"><img src="https://agentmods.dev/badge/skills/alinaqi/maggy/pwa-development.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector warn
SkillSpector: 3 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Prompt Injection · line 458 Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
- medium MCP Rug Pull · line 752 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 913 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00019 | $0.06114 |
| Opus 5 | $0.00010 | $0.03057 |
| Sonnet 5 | $0.00004 | $0.01223 |
| Haiku 4.5 | $0.00002 | $0.00611 |
Grade A, and why
pwa-development scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
.then((cached) => cached || fetch(event.request)) Copies of this mod
1 near-identical copy found in the catalogue:
- pwa-development — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 961 lines — stays where its author put it; the contents beside it link to each section on GitHub.
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
{
"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"
}
]
}
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 6d ago First seen · 961 lines · 19 tokens per session scan A 16e56227d54b
pwa-development is a skill published in the GitHub repository alinaqi/maggy (706 stars, last pushed yesterday), licensed MIT. It adds 19 tokens to every session and 6,114 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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