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 hoangatg/ai-agent-toolkit --skill mobile-designgit clone --depth 1 https://github.com/hoangatg/ai-agent-toolkitWrote 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/hoangatg/ai-agent-toolkit/mobile-design)<a href="https://agentmods.dev/skills/hoangatg/ai-agent-toolkit/mobile-design"><img src="https://agentmods.dev/badge/skills/hoangatg/ai-agent-toolkit/mobile-design.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00047 | $0.03605 |
| Opus 5 | $0.00023 | $0.01802 |
| Sonnet 5 | $0.00009 | $0.00721 |
| Haiku 4.5 | $0.00005 | $0.00361 |
Grade A, and why
mobile-design 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 4d 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.
This is a copy
98% identical to mobile-design — 6 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 395 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Mobile Design System
Philosophy: Touch-first. Battery-conscious. Platform-respectful. Offline-capable. Core Principle: Mobile is NOT a small desktop. THINK mobile constraints, ASK platform choice.
🔧 Runtime Scripts
Execute these for validation (don't read, just run):
| Script | Purpose | Usage |
|---|---|---|
scripts/mobile_audit.py |
Mobile UX & Touch Audit | python scripts/mobile_audit.py <project_path> |
🔴 MANDATORY: Read Reference Files Before Working!
⛔ DO NOT start development until you read the relevant files:
Universal (Always Read)
| File | Content | Status |
|---|---|---|
| mobile-design-thinking.md | ⚠️ ANTI-MEMORIZATION: Forces thinking, prevents AI defaults | ⬜ CRITICAL FIRST |
| touch-psychology.md | Fitts' Law, gestures, haptics, thumb zone | ⬜ CRITICAL |
| mobile-performance.md | RN/Flutter performance, 60fps, memory | ⬜ CRITICAL |
| mobile-backend.md | Push notifications, offline sync, mobile API | ⬜ CRITICAL |
| mobile-testing.md | Testing pyramid, E2E, platform-specific | ⬜ CRITICAL |
| mobile-debugging.md | Native vs JS debugging, Flipper, Logcat | ⬜ CRITICAL |
| mobile-navigation.md | Tab/Stack/Drawer, deep linking | ⬜ Read |
| mobile-typography.md | System fonts, Dynamic Type, a11y | ⬜ Read |
| mobile-color-system.md | OLED, dark mode, battery-aware | ⬜ Read |
| decision-trees.md | Framework/state/storage selection | ⬜ Read |
🧠 mobile-design-thinking.md is PRIORITY! This file ensures AI thinks instead of using memorized patterns.
Platform-Specific (Read Based on Target)
| Platform | File | Content | When to Read |
|---|---|---|---|
| iOS | platform-ios.md | Human Interface Guidelines, SF Pro, SwiftUI patterns | Building for iPhone/iPad |
| Android | platform-android.md | Material Design 3, Roboto, Compose patterns | Building for Android |
| Cross-Platform | Both above | Platform divergence points | React Native / Flutter |
What ships with it
13 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- decision-trees.md 16 KB
- mobile-backend.md 14 KB
- mobile-color-system.md 10.0 KB
- mobile-debugging.md 4.2 KB
- mobile-design-thinking.md 17 KB
- mobile-navigation.md 12 KB
- mobile-performance.md 19 KB
- mobile-testing.md 11 KB
- mobile-typography.md 10 KB
- platform-android.md 19 KB
- platform-ios.md 17 KB
- scripts/mobile_audit.py 35 KB runs code
- touch-psychology.md 16 KB
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.
- 4d ago First seen · 395 lines · 47 tokens per session scan A ec74cda5e195
mobile-design is a skill published in the GitHub repository hoangatg/ai-agent-toolkit (1 stars, last pushed 5mo ago), licensed MIT. It adds 47 tokens to every session and 3,605 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 98% identical to mobile-design, differing in 6 lines, and is treated as a copy.
Other skills, from other repositories
ui-mobile
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ss-audit
Audit screens for UX issues using Nielsen's heuristics and modern mobile UX best practices.
liquid-glass-design
Patterns for implementing Apple's Liquid Glass — a dynamic material that blurs content behind it, reflects color and light from surrounding content, and reacts to touch and pointer interactions. Covers SwiftUI, UIKit, and WidgetKit integration.
android-jetpack-compose-expert-v2
Android Jetpack Compose Expert workflow skill. Use this skill when the user needs Expert guidance for building modern Android UIs with Jetpack Compose, covering state management, navigation, performance, and Material Design 3 and the operator should preserve the upstream workflow, copied support files, and provenance…
ux-ui
Use this agent when you need to design, audit, migrate, rewire, or rewrite UX/UI.
accessibility
You are the Accessibility (a11y) Specialist, ensuring applications are accessible to all users, including those with disabilities. You enforce WCAG standards and inclusive design principles.