mobile-pwa-usability

mobile-pwa-usability is a skill for Claude Code from parisgroup-ai/imersao-ia-setup. It costs 69 tokens per session (1,742 once invoked), scanned A, original, MIT.

A set of mobile usability rules for React and Next.js interfaces, including progressive web apps, which are websites that can behave like installed apps. It checks touch sizes, text sizes, screen layout, safe areas, contrast, and scrolling.

In plain words
What is it for?
Building or changing React components, pages, layouts, PWA settings, service workers, or CSS and Tailwind styles for mobile use.
Why use it?
It catches common phone problems such as buttons that are hard to tap, unwanted zooming, content hidden by a screen notch, poor contrast, and sideways scrolling.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the imersao plugin — 51 skills, 7 commands shipped together

Good fit Building or changing React components, pages, layouts, PWA settings, service workers, or CSS and Tailwind styles for mobile use.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/parisgroup-ai/imersao-ia-setup/mobile-pwa-usability
Install

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.

Any agent
npx skills add parisgroup-ai/imersao-ia-setup --skill mobile-pwa-usability
Clone the repo
git clone --depth 1 https://github.com/parisgroup-ai/imersao-ia-setup

Made for: Claude Code.

Or install imersao, the plugin that ships this one along with the rest of its 51 skills, 7 commands.

Wrote 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.

agentmods badge for mobile-pwa-usability

README.md
[![agentmods](https://agentmods.dev/badge/skills/parisgroup-ai/imersao-ia-setup/mobile-pwa-usability/github.svg)](https://agentmods.dev/skills/parisgroup-ai/imersao-ia-setup/mobile-pwa-usability)
Your own site
<a href="https://agentmods.dev/skills/parisgroup-ai/imersao-ia-setup/mobile-pwa-usability"><img src="https://agentmods.dev/badge/skills/parisgroup-ai/imersao-ia-setup/mobile-pwa-usability/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.

agentmods 80×15 button for mobile-pwa-usability

Your own site · 80×15
<a href="https://agentmods.dev/skills/parisgroup-ai/imersao-ia-setup/mobile-pwa-usability"><img src="https://agentmods.dev/badge/skills/parisgroup-ai/imersao-ia-setup/mobile-pwa-usability.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 69 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,742 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00069 $0.01742
Opus 5 $0.00034 $0.00871
Sonnet 5 $0.00014 $0.00348
Haiku 4.5 $0.00007 $0.00174

Measured 12d ago against content hash 829329eab77b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

mobile-pwa-usability scanned grade A with 0 findings 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 12d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/imersao/skills/mobile-pwa-usability/SKILL.md · 229 lines

How it starts

The opening of the file, as written. The whole thing — 229 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Mobile PWA Usability

Guia para criar interfaces mobile-first em PWAs React/Next.js com foco em usabilidade real.

Quando Usar

Triggers automáticos:

  • Componentes React (.tsx, .jsx)
  • Layouts e páginas (app/, pages/)
  • Configurações PWA (manifest.json, manifest.ts, next.config.js)
  • CSS/Tailwind (.css, .scss, tailwind.config.js)
  • Service workers

Checklist Crítico (Bloqueante)

PARE se qualquer item falhar. Corrija antes de continuar.

Item Regra Como Verificar
Touch targets Mínimo 44x44px min-h-[44px] min-w-[44px] em buttons/links
Font size inputs Mínimo 16px text-base ou text-[16px] - previne zoom iOS
Viewport width=device-width, initial-scale=1 Em layout.tsx ou <head>
Safe areas Suporte a notch/islands pb-[env(safe-area-inset-bottom)]
Contraste WCAG AA (4.5:1 texto) Verificar cores primárias
Tap delay Sem delay 300ms touch-manipulation em elementos interativos
Horizontal scroll Não permitido overflow-x-hidden no root

Viewport para Next.js 14+

// app/layout.tsx
import { Viewport } from 'next';

export const viewport: Viewport = {
  width: 'device-width',
  initialScale: 1,
  maximumScale: 5,
  userScalable: true,
  viewportFit: 'cover', // Para safe areas
  themeColor: [
    { media: '(prefers-color-scheme: light)', color: '#ffffff' },
    { media: '(prefers-color-scheme: dark)', color: '#0a0a0a' },
  ],
};

Safe Areas (Notch/Dynamic Island)

// Para elementos fixos no bottom
<nav className="fixed bottom-0 pb-[env(safe-area-inset-bottom)] ...">

// Para containers principais
<main className="pb-[env(safe-area-inset-bottom)] pt-[env(safe-area-inset-top)]">

// CSS puro
.safe-bottom {
  padding-bottom: max(1rem, env(safe-area-inset-bottom));
}

Touch Targets Corretos

// ❌ ERRADO - muito pequeno
<button className="p-1 text-sm">Save</button>

// ✅ CORRETO - 44px mínimo
<button className="min-h-[44px] min-w-[44px] p-3 touch-manipulation">
  Save
</button>

// ✅ Ícone com área de toque expandida
<button className="p-3 -m-3"> {/* padding expande, margin negativa compensa */}
  <Icon className="w-5 h-5" />
</button>

Read the full file on GitHub · 229 lines

Changes

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.

  1. 12d ago First seen · 229 lines · 69 tokens per session scan A 829329eab77b

Subscribe to this mod's changes

mobile-pwa-usability is a skill published in the GitHub repository parisgroup-ai/imersao-ia-setup (1 stars, last pushed 29d ago), licensed MIT. It adds 69 tokens to every session and 1,742 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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