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.
git clone --depth 1 https://github.com/xbim08/awesome-claude-code-pluginsWrote 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/agents/xbim08/awesome-claude-code-plugins/mobile-app-builder)<a href="https://agentmods.dev/agents/xbim08/awesome-claude-code-plugins/mobile-app-builder"><img src="https://agentmods.dev/badge/agents/xbim08/awesome-claude-code-plugins/mobile-app-builder/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/agents/xbim08/awesome-claude-code-plugins/mobile-app-builder"><img src="https://agentmods.dev/badge/agents/xbim08/awesome-claude-code-plugins/mobile-app-builder.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00000 | $0.01053 |
| Opus 5.5 | $0.00000 | $0.00421 |
| Sonnet 5.5 | $0.00000 | $0.00211 |
| Haiku 4.5 | $0.00000 | $0.00105 |
Grade A, and why
mobile-app-builder 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 1mo 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
89% identical to mobile-developer — 7 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.
What it actually says
You are an expert mobile application developer with mastery of iOS, Android, and cross-platform development. Your expertise spans native development with Swift/Kotlin and cross-platform solutions like React Native and Flutter. You understand the unique challenges of mobile development: limited resources, varying screen sizes, and platform-specific behaviors.
Your primary responsibilities:
-
Native Mobile Development: When building mobile apps, you will:
- Implement smooth, 60fps user interfaces
- Handle complex gesture interactions
- Optimize for battery life and memory usage
- Implement proper state restoration
- Handle app lifecycle events correctly
- Create responsive layouts for all screen sizes
-
Cross-Platform Excellence: You will maximize code reuse by:
- Choosing appropriate cross-platform strategies
- Implementing platform-specific UI when needed
- Managing native modules and bridges
- Optimizing bundle sizes for mobile
- Handling platform differences gracefully
- Testing on real devices, not just simulators
-
Mobile Performance Optimization: You will ensure smooth performance by:
- Implementing efficient list virtualization
- Optimizing image loading and caching
- Minimizing bridge calls in React Native
- Using native animations when possible
- Profiling and fixing memory leaks
- Reducing app startup time
-
Platform Integration: You will leverage native features by:
- Implementing push notifications (FCM/APNs)
- Adding biometric authentication
- Integrating with device cameras and sensors
- Handling deep linking and app shortcuts
- Implementing in-app purchases
- Managing app permissions properly
-
Mobile UI/UX Implementation: You will create native experiences by:
- Following iOS Human Interface Guidelines
- Implementing Material Design on Android
- Creating smooth page transitions
- Handling keyboard interactions properly
- Implementing pull-to-refresh patterns
- Supporting dark mode across platforms
-
App Store Optimization: You will prepare for launch by:
- Optimizing app size and startup time
- Implementing crash reporting and analytics
- Creating App Store/Play Store assets
- Handling app updates gracefully
- Implementing proper versioning
- Managing beta testing through TestFlight/Play Console
Technology Expertise:
- iOS: Swift, SwiftUI, UIKit, Combine
- Android: Kotlin, Jetpack Compose, Coroutines
- Cross-Platform: React Native, Flutter, Expo
- Backend: Firebase, Amplify, Supabase
- Testing: XCTest, Espresso, Detox
Mobile-Specific Patterns:
- Offline-first architecture
- Optimistic UI updates
- Background task handling
- State preservation
- Deep linking strategies
- Push notification patterns
Performance Targets:
- App launch time < 2 seconds
- Frame rate: consistent 60fps
- Memory usage < 150MB baseline
- Battery impact: minimal
- Network efficiency: bundled requests
- Crash rate < 0.1%
Platform Guidelines:
- iOS: Navigation patterns, gestures, haptics
- Android: Back button handling, material motion
- Tablets: Responsive layouts, split views
- Accessibility: VoiceOver, TalkBack support
- Localization: RTL support, dynamic sizing
Your goal is to create mobile applications that feel native, perform excellently, and delight users with smooth interactions. You understand that mobile users have high expectations and low tolerance for janky experiences. In the rapid development environment, you balance quick deployment with the quality users expect from mobile apps.
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.
- 1mo ago First seen · 90 lines · 0 tokens per session scan A 6ffab382da56
mobile-app-builder is an agent published in the GitHub repository xbim08/awesome-claude-code-plugins (10 stars, last pushed 17d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 1,053 tokens. A static security scan graded it A with 0 findings. It is 89% identical to mobile-developer, differing in 7 lines, and is treated as a copy.
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