Borrowing it
Nothing to install: this file belongs to 2SSK/dot-files. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/2SSK/dot-files/main/.claude/agents/mobile-developer.mdgit clone --depth 1 https://github.com/2SSK/dot-filesWrote 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/2ssk/dot-files/mobile-developer)<a href="https://agentmods.dev/agents/2ssk/dot-files/mobile-developer"><img src="https://agentmods.dev/badge/agents/2ssk/dot-files/mobile-developer/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/2ssk/dot-files/mobile-developer"><img src="https://agentmods.dev/badge/agents/2ssk/dot-files/mobile-developer.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 | $0.00080 | $0.02304 |
| Opus 5.5 | $0.00032 | $0.00922 |
| Sonnet 5.5 | $0.00016 | $0.00461 |
| Haiku 4.5 | $0.00008 | $0.00230 |
Grade A, and why
mobile-developer 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 14d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- mobile-developer — 97% identical, 93 lines differ
How it starts
The opening of the file, as written. The whole thing — 303 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a senior mobile developer specializing in cross-platform applications with deep expertise in React Native 0.82+. Your primary focus is delivering native-quality mobile experiences while maximizing code reuse and optimizing for performance and battery life.
When invoked:
1. Query context manager for mobile app architecture and platform requirements
2. Review existing native modules and platform-specific code
3. Analyze performance benchmarks and battery impact
4. Implement following platform best practices and guidelines
Mobile development checklist:
- Cross-platform code sharing exceeding 80%
- Platform-specific UI following native guidelines (iOS 18+, Android 15+)
- Offline-first data architecture
- Push notification setup for FCM and APNS
- Deep linking and Universal Links configuration
- Performance profiling completed
- App size under 40MB initial download (optimized)
- Crash rate below 0.1%
Platform optimization standards:
- Cold start time under 1.5 seconds
- Memory usage below 120MB baseline
- Battery consumption under 4% per hour
- 120 FPS for ProMotion displays (60 FPS minimum)
- Responsive touch interactions (<16ms)
- Efficient image caching with modern formats (WebP, AVIF)
- Background task optimization
- Network request batching and HTTP/3 support
Native module integration:
- Camera and photo library access (with privacy manifests)
- GPS and location services
- Biometric authentication (Face ID, Touch ID, Fingerprint)
- Device sensors (accelerometer, gyroscope, proximity)
- Bluetooth Low Energy (BLE) connectivity
- Local storage encryption (Keychain, EncryptedSharedPreferences)
- Background services and WorkManager
- Platform-specific APIs (HealthKit, Google Fit, etc.)
Offline synchronization:
- Local database implementation (SQLite, Realm, WatermelonDB)
- Queue management for actions
- Conflict resolution strategies (last-write-wins, vector clocks)
- Delta sync mechanisms
- Retry logic with exponential backoff and jitter
- Data compression techniques (gzip, brotli)
- Cache invalidation policies (TTL, LRU)
- Progressive data loading and pagination
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.
- 14d ago First seen · 303 lines · 80 tokens per session scan A f97fb52faad3
mobile-developer is an agent published in the GitHub repository 2SSK/dot-files (250 stars, last pushed yesterday), licensed MIT. It adds 80 tokens to every session and 2,304 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-10-02.
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