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 ww-w-ai/bkit-claude-code --skill mobile-appgit clone --depth 1 https://github.com/ww-w-ai/bkit-claude-codeWrote 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/ww-w-ai/bkit-claude-code/mobile-app)<a href="https://agentmods.dev/skills/ww-w-ai/bkit-claude-code/mobile-app"><img src="https://agentmods.dev/badge/skills/ww-w-ai/bkit-claude-code/mobile-app.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 | $0.00035 | $0.02963 |
| Opus 5 | $0.00017 | $0.01482 |
| Sonnet 5 | $0.00007 | $0.00593 |
| Haiku 4.5 | $0.00003 | $0.00296 |
Grade A, and why
mobile-app 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 3d 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.
How it starts
The opening of the file, as written. The whole thing — 543 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Mobile App Development Expertise
Overview
A guide for developing mobile apps based on web development experience. Develop for iOS and Android simultaneously using cross-platform frameworks.
Framework Selection Guide
Framework Selection by Tier (v1.3.0)
| Framework | Tier | Recommendation | Use Case |
|---|---|---|---|
| React Native (Expo) | Tier 1 | ⭐ Primary | TypeScript ecosystem, AI tools |
| React Native CLI | Tier 1 | Recommended | Native module needs |
| Flutter | Tier 2 | Supported | Multi-platform (6 OS), performance |
AI-Native Recommendation: React Native with TypeScript
- Full Copilot/Claude support
- Extensive npm ecosystem
- 20:1 developer availability vs Dart
Performance Recommendation: Flutter
- Impeller rendering engine
- Single codebase for 6 platforms
- Smaller bundles
Level-wise Recommendations
Starter → Expo (React Native) [Tier 1]
- Simple setup, can leverage web knowledge
- Full AI tool support
Dynamic → Expo + EAS Build [Tier 1] or Flutter [Tier 2]
- Includes server integration, production build support
- Choose Flutter for multi-platform needs
Enterprise → React Native CLI [Tier 1] or Flutter [Tier 2]
- Complex native features, performance optimization needed
- Flutter for consistent cross-platform UI
Expo (React Native) Guide
Project Creation
# Install Expo CLI
npm install -g expo-cli
# Create new project
npx create-expo-app my-app
cd my-app
# Start development server
npx expo start
Folder Structure
my-app/
├── app/ # Expo Router pages
│ ├── (tabs)/ # Tab navigation
│ │ ├── index.tsx # Home tab
│ │ ├── explore.tsx # Explore tab
│ │ └── _layout.tsx # Tab layout
│ ├── _layout.tsx # Root layout
│ └── +not-found.tsx # 404 page
├── components/ # Reusable components
├── hooks/ # Custom hooks
├── constants/ # Constants
├── assets/ # Images, fonts, etc.
├── app.json # Expo configuration
└── package.json
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.
- 3d ago First seen · 543 lines · 35 tokens per session scan A 27a00281c4ea
mobile-app is a skill published in the GitHub repository ww-w-ai/bkit-claude-code (595 stars, last pushed today), licensed Apache-2.0. It adds 35 tokens to every session and 2,963 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
Other skills, from other repositories
orca-emulator-android
Control an Android emulator / device from inside Orca using the orca CLI. Use for listing/booting AVDs, taps, swipes, typing, hardware buttons (incl. Back and Recents), rotation, app install/launch, runtime permissions, the accessibility tree, and logcat — driving a real adb-connected device or emulator.…
dogfood
Systematically explore and test a mobile app on iOS/Android with agent-device to find bugs, UX issues, and other problems. Use when asked to dogfood, QA, exploratory test, find issues, bug hunt, or test this app on mobile.
winapp-maui
Package and sign .NET MAUI Windows apps with winapp, resolving the resizetizer manifest dependency. Use when packaging or signing a .NET MAUI Windows app, building a MAUI MSIX or signed unpackaged build in CI, or fixing 'manifest contains unresolved placeholders ($placeholder$)' errors from winapp package.
apple-search-ads
When the user wants to set up, optimize, or scale Apple Search Ads (ASA) campaigns — including keyword bidding, match types, campaign structure, Creative Product Sets, CPP routing, and ROAS optimization. Use when the user mentions "Apple Search Ads", "ASA", "Search Ads", "Search tab ads", "Today tab ads", "CPT"…
android-pentest
A guide for authorized security testing of Android apps, covering APK inspection, runtime testing, traffic capture, code review, and function hooking. An APK is the installable package used by an Android app.
app_remix
Create a new Rome app from an App Store source, already installed or identified by a pinned Store version. Copy installed code locally or download and extract a Store bundle without installing the source. Never edit or overwrite an existing source app.