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 magnus919/agent-skills --skill mobile-developmentgit clone --depth 1 https://github.com/magnus919/agent-skillsWrote 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/magnus919/agent-skills/mobile-development)<a href="https://agentmods.dev/skills/magnus919/agent-skills/mobile-development"><img src="https://agentmods.dev/badge/skills/magnus919/agent-skills/mobile-development/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/skills/magnus919/agent-skills/mobile-development"><img src="https://agentmods.dev/badge/skills/magnus919/agent-skills/mobile-development.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 90 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00144 | $0.02888 |
| Opus 5 | $0.00072 | $0.01444 |
| Sonnet 5 | $0.00029 | $0.00578 |
| Haiku 4.5 | $0.00014 | $0.00289 |
Grade A, and why
mobile-development 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 9d 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 — 233 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Mobile Development
One skill for building mobile apps on iOS and Android — with per-framework
depth for native (Swift/SwiftUI, Kotlin/Jetpack Compose) and cross-platform
(Flutter, React Native) stacks. All four share one agent workflow — scaffold,
build and sign, test on devices and emulators, and ship to stores — so they live
in ONE family skill with per-framework references, following the
frontend-engineering precedent. Load the shared workflow below, then pull the
reference for the framework you are actually building.
| Framework | Stack | Reference (load on demand) |
|---|---|---|
| iOS | Swift, SwiftUI/UIKit, Xcode | references/ios.md |
| Android | Kotlin, Jetpack Compose, Gradle | references/android.md |
| Flutter | Dart, Flutter SDK | references/flutter.md |
| React Native | TypeScript/JavaScript, React, Metro | references/react-native.md |
When to use
Load this skill when the task involves any part of the mobile lifecycle:
- Scaffold — creating a new mobile project for iOS, Android, Flutter, or React Native: choosing the framework, initializing the project, and setting up the platform toolchains.
- Build and sign — compiling a debug or release build, configuring code
signing (certificates, provisioning profiles, keystores, app signing), or
producing distributable artifacts (
.ipa, APK, AAB). - Test on devices and emulators — running and debugging on iOS simulators, Android emulators, or physical devices, including device provisioning, connectivity, and platform-specific runtime behavior.
- Ship to stores — submitting to the App Store (TestFlight, App Store Connect) or Google Play (internal/closed/open testing tracks, Play Console), and reasoning about store review readiness.
- Mobile-specific behavior — app lifecycle and backgrounding, offline storage and sync, push notifications, deep links, and mobile testing (unit, widget, UI, and device-farm testing).
What ships with it
6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 9d ago First seen · 233 lines · 144 tokens per session scan A 4a2ee6575220
mobile-development is a skill published in the GitHub repository magnus919/agent-skills (76 stars, last pushed yesterday), licensed MIT. It adds 144 tokens to every session and 2,888 once invoked, about $0.0007 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
Phone Use
MUST Load this skill for ANY task that involves GUI interaction or device control — opening apps, tapping, typing, scrolling, swiping, Back/Home/Recents, reading the screen, or any workflow that touches on-screen content. Load this even when the user does not explicitly mention the device — if the task implies a GUI…
release-new-version
Use when the user wants to release a new Zafiro version — drafting bilingual release notes, deciding the next version number, bumping app/build.gradle.kts, tagging, and publishing to GitHub (main repo, optionally the Xposed repo).
android-use
Control Android devices via ADB. Use when user asks to tap, swipe, type, launch apps, take screenshots, or automate Android device interactions.
agent-spec-mobile-react-native
Agent skill for spec-mobile-react-native - invoke with $agent-spec-mobile-react-native.
systematic-debugging
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.
local-ai-agents
Build local-first AI agents that run entirely on a developer workstation with Microsoft Foundry Local and Qwen function-calling models. Covers Small Language Models (SLMs), the OpenAI-compatible local endpoint, sandboxed local tools, local RAG with Chroma, local MCP servers, hybrid cloud/local routing, and the…