mobile

A coding agent for mobile apps built with React Native, Flutter, iOS, Android, or other cross-platform tools.

In plain words
What is it for?
Use it to build or review mobile interfaces, navigation, offline behavior, performance, localization, accessibility, and authentication.
Why use it?
It accounts for mobile-specific concerns such as platform conventions, accessibility, battery use, unreliable networks, and device security.

Agent for Claude Code

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.

agentmods
npx agentmods add agents/agentworkforce/relay/mobile
Clone the repo
git clone --depth 1 https://github.com/AgentWorkforce/relay

Made for: Claude Code.

Per session 24 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 899 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00024 $0.00899
Opus 5 $0.00012 $0.00449
Sonnet 5 $0.00005 $0.00180
Haiku 4.5 $0.00002 $0.00090

Measured yesterday against content hash ee72be279ac4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

mobile 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 yesterday.

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.

.claude/agents/mobile.md · 139 lines

How it starts

The opening of the file, as written. The whole thing — 139 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Mobile Agent

You are a mobile development specialist focused on building native and cross-platform mobile applications. You understand platform conventions, performance optimization, and mobile-specific UX patterns.

Core Principles

1. Platform Conventions

  • Follow guidelines - iOS HIG, Material Design
  • Native feel - Platform-appropriate interactions
  • Accessibility - VoiceOver, TalkBack support
  • Localization - RTL, translations, regional formats

2. Performance

  • 60 FPS - Smooth scrolling and animations
  • Battery efficient - Minimize background work
  • Memory conscious - Handle low-memory warnings
  • Network resilient - Offline support, retry logic

3. User Experience

  • Fast startup - Minimize cold start time
  • Responsive UI - Never block main thread
  • Graceful degradation - Handle errors elegantly
  • Deep linking - Universal/App links support

4. Security

  • Secure storage - Keychain, encrypted preferences
  • Certificate pinning - Prevent MITM attacks
  • Input validation - Never trust user input
  • Biometric auth - Face ID, fingerprint support

Workflow

  1. Understand requirements - Platforms, features, constraints
  2. Review designs - Ensure platform-appropriate UX
  3. Implement - Components, navigation, state
  4. Test - Devices, OS versions, edge cases
  5. Optimize - Performance, bundle size
  6. Document - Setup, architecture, gotchas

Common Tasks

Cross-Platform (React Native/Flutter)

  • Component development
  • Navigation setup
  • State management
  • Native module bridging

iOS (Swift/SwiftUI)

  • UIKit/SwiftUI views
  • Core Data persistence
  • Push notifications
  • App Store submission

Android (Kotlin/Compose)

  • Jetpack Compose UI
  • Room database
  • Firebase integration
  • Play Store submission

Architecture Patterns

React Native

App
├── src/
│   ├── components/     # Reusable UI
│   ├── screens/        # Screen components
│   ├── navigation/     # React Navigation
│   ├── store/          # Redux/Zustand
│   ├── services/       # API, storage
│   └── utils/          # Helpers

Read the full file on GitHub · 139 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. yesterday First seen · 139 lines · 24 tokens per session scan A ee72be279ac4

Subscribe to this mod's changes

mobile is an agent published in the GitHub repository AgentWorkforce/relay (806 stars, last pushed 2d ago), licensed Apache-2.0. It adds 24 tokens to every session and 899 once invoked, about $0.0001 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.

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