antigravity-superpowers: Skill for Claude Code

.agent/skills/mobile-uiux-promax/SKILL.md

mobile-uiux-promax is a skill for Claude Code, Codex from bonnguyenitc/antigravity-superpowers. It costs 32 tokens per session (1,409 once invoked), scanned A, original, MIT.

A design guide for mobile apps on iOS and Android, including apps built with React Native, Flutter, SwiftUI, or Jetpack Compose.

In plain words
What is it for?
Use it to design or review screens, navigation, gestures, onboarding, payment screens, animations, and other mobile app experiences.
Why use it?
It helps developers choose interactions and layouts that fit each mobile platform instead of treating phones like small websites.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

This is bonnguyenitc/antigravity-superpowers's own configuration. It tells Claude Code and Codex how to work on antigravity-superpowers itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything antigravity-superpowers configures →

Reuse

Borrowing it

Nothing to install: this file belongs to bonnguyenitc/antigravity-superpowers. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/bonnguyenitc/antigravity-superpowers/main/.agent/skills/mobile-uiux-promax/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/bonnguyenitc/antigravity-superpowers

Made for: Claude Code, Codex.

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-uiux-promax

README.md
[![agentmods](https://agentmods.dev/badge/skills/bonnguyenitc/antigravity-superpowers/mobile-uiux-promax/github.svg)](https://agentmods.dev/skills/bonnguyenitc/antigravity-superpowers/mobile-uiux-promax)
Your own site
<a href="https://agentmods.dev/skills/bonnguyenitc/antigravity-superpowers/mobile-uiux-promax"><img src="https://agentmods.dev/badge/skills/bonnguyenitc/antigravity-superpowers/mobile-uiux-promax/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-uiux-promax

Your own site · 80×15
<a href="https://agentmods.dev/skills/bonnguyenitc/antigravity-superpowers/mobile-uiux-promax"><img src="https://agentmods.dev/badge/skills/bonnguyenitc/antigravity-superpowers/mobile-uiux-promax.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,409 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 $0.00032 $0.01409
Opus 5 $0.00016 $0.00705
Sonnet 5 $0.00006 $0.00282
Haiku 4.5 $0.00003 $0.00141

Measured 12d ago against content hash 8e1ac1c27507, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

mobile-uiux-promax 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.

.agent/skills/mobile-uiux-promax/SKILL.md · 140 lines

How it starts

The opening of the file, as written. The whole thing — 140 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Mobile UI/UX Pro Max

Data-grounded mobile design intelligence. Every design decision is backed by platform-authoritative data from Apple HIG, Material Design 3, and stack-specific best practices.

When to Activate

Activate this skill when the request involves:

  • Designing any mobile screen, flow, or component
  • Reviewing mobile UI for platform-appropriateness
  • Choosing between navigation patterns for mobile apps
  • Implementing gesture-driven or haptic-rich interactions
  • Advising on iOS vs Android design conventions
  • Building onboarding flows or paywall timing
  • Animation and motion design for mobile

Workflow

Run the 4-step search sequence from: .agent/workflows/mobile-uiux-promax.md

Read the workflow file before responding. It contains the exact search commands to run.

Core Design Principles (Memorize These)

1. Platform-First, Not Platform-Only

  • Follow platform conventions by default
  • Deviate only when there's clear UX benefit to users
  • Cross-platform apps must feel native on each platform, not identical
  • iOS users expect swipe-back + tab bar at bottom; Android users expect system back + nav structure

2. Thumb Zone Above All

  • Primary actions belong in the bottom 60% of the screen
  • Top-left corner = hardest to reach one-handed
  • Platform back buttons (iOS top-left) are the only justified exception

3. Gesture + Haptic + Visual = One Interaction

  • Every interaction should engage all three senses when appropriate
  • Swipe reveals → haptic at threshold + visual action button
  • Toggle → haptic on state change + visual state update simultaneously
  • Pull-to-refresh → haptic on trigger + spinner animation + announce to screen readers

4. Accessibility Is Not Optional

  • Minimum touch target: 44pt (iOS) / 48dp (Android)
  • Every tappable element without visible text needs accessibilityLabel
  • Every gesture needs an accessible alternative action
  • Test with VoiceOver (iOS) and TalkBack (Android) before shipping
  • Support Dynamic Type / sp font scaling (never lock font size)

Read the full file on GitHub · 140 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 · 140 lines · 32 tokens per session scan A 8e1ac1c27507

Subscribe to this mod's changes

mobile-uiux-promax is a skill published in the GitHub repository bonnguyenitc/antigravity-superpowers (19 stars, last pushed 4mo ago), licensed MIT. It adds 32 tokens to every session and 1,409 once invoked, about $0.0002 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 2026-08-30.