What is react-native-mobile-hardening?

A guide for testing and preparing React Native mobile apps, including Expo apps, for release. React Native is a framework for building iOS and Android apps with JavaScript or TypeScript.

Use it when testing mobile changes, deep links, QR flows, camera features, offline syncing, startup speed, scrolling, or preview and release builds.

It helps catch mobile-specific problems involving offline use, navigation, screen insets, gestures, stale cached content, performance, and release builds.

How borgius/kanban-lite configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to borgius/kanban-lite. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/borgius/kanban-lite/main/.agents/skills/react-native-mobile-hardening/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/borgius/kanban-lite

Made for: Claude Code, Codex.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/borgius/kanban-lite/react-native-mobile-hardening.svg)](https://agentmods.dev/skills/borgius/kanban-lite/react-native-mobile-hardening)

Your own site

<a href="https://agentmods.dev/skills/borgius/kanban-lite/react-native-mobile-hardening"><img src="https://agentmods.dev/badge/skills/borgius/kanban-lite/react-native-mobile-hardening.svg" alt="Measured on agentmods" height="20"></a>

Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,247 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.

Model	Per session	Once invoked
Fable 5.1	$0.00073	$0.01247
Opus 5	$0.00036	$0.00624
Sonnet 5	$0.00015	$0.00249
Haiku 4.5	$0.00007	$0.00125

Measured 5d ago against content hash b22ccd41ba75, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

react-native-mobile-hardening 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 5d 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.

.agents/skills/react-native-mobile-hardening/SKILL.md · 129 lines

How it starts

The opening of the file, as written. The whole thing — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.

React Native Mobile Hardening

Use this skill when the goal is to test, harden, and de-risk Kanban Lite mobile changes before they surprise users in the field. Small bugs become big bugs once a worker is offline, gloved up, and standing in the rain.

When to Use

Use when the task mentions any of these ideas:

React Native testing or Expo validation
mobile regression checks for iOS or Android
safe area, navigation, gesture, keyboard, or bottom-dock issues
deep links, QR flows, restore gate, or wrong-workspace/wrong-user recovery
offline sync, pending resend, conflict review, or stale-cache bugs
camera, attachment capture, upload states, or QR scanning
performance, startup time, jank, list scrolling, or render churn
release hardening, preview builds, EAS profiles, or app identity checks

Focus Areas

Always test these risk areas first:

Protected-content safety
- no stale task flash during restore, reauth, workspace switch, deep links, or QR entry
- cache purge behavior when workspace, subject, or session no longer match
Offline truthfulness
- explicit resend for comments, forms, checklist intents, and attachment drafts
- no silent replay of unsafe server mutations
- clear Pending, Needs connection, and conflict states
Field-worker ergonomics
- safe area clearance
- large touch targets
- one obvious primary action in the thumb zone
- outdoor-readable contrast and short recovery copy
Cross-platform correctness
- iOS and Android navigation behavior
- deep links and scheme handling
- keyboard overlap, gesture interactions, and back behavior

Procedure

Run the repo-supported validation set first.
- pnpm --filter @kanban-lite/mobile run lint
- pnpm --filter @kanban-lite/mobile run doctor
- pnpm --filter @kanban-lite/mobile run start -- --offline --clear --port 8088
- cd packages/mobile && APP_VARIANT=development pnpm exec expo config --json
- cd packages/mobile && APP_VARIANT=preview pnpm exec expo config --json

Read the full file on GitHub · 129 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.

5d ago First seen · 129 lines · 73 tokens per session scan A b22ccd41ba75

Subscribe to this mod's changes

react-native-mobile-hardening is a skill published in the GitHub repository borgius/kanban-lite (7 stars, last pushed 3mo ago), licensed MIT. It adds 73 tokens to every session and 1,247 once invoked, about $0.0004 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 2026-08-31.

Mobile Testing

android_ui_verification

Automated end-to-end UI testing and verification on an Android Emulator using ADB.

sickn33/agentic-awesome-skills · 22 tokens

solopi-ai

通过 SoloPi 的机器可读 CLI 编译和执行 AI 验证计划，管理签名端侧 ExecuTorch 决策模型、持久设备池、无人值守任务、安卓设备、应用、动作、配置、用例步骤与交互录制、回放及性能历史、动态 Agent、批量与重复执行、性能监控、压力测试和证据。适用于需求/AC 到 Result Judge 三态结论、cloud/on-device 决策切换、模型发布门禁，以及 generation 租约的多设备 CI 执行。.

alipay/SoloPi · 127 tokens

agent-device

Automates Apple-platform apps (iOS, tvOS, macOS), Android devices, and Amazon Vega OS TV apps in Vega Virtual Devices. Use when navigating apps, taking snapshots/screenshots where supported, driving TV remotes, tapping, typing, scrolling, extracting UI info, collecting evidence, or planning agent-device CLI commands.

callstack/agent-device · 69 tokens

ios-simulator

Verify and debug native, React Native, Expo, or Flutter apps on an iOS Simulator with agent-device. Use when an agent needs to launch an app, inspect its live UI, tap, type, scroll, validate a code change, collect failure evidence, or reproduce a workflow on an iPhone or iPad Simulator.

callstack/agent-device · 69 tokens

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.

callstack/agent-device · 55 tokens

eas-simulator

EAS service (paid). Run and control a user's app on a remote iOS/Android simulator hosted on EAS cloud. Read before running any eas simulator: commands - it has the current syntax for this experimental API. Use whenever the user needs a simulator they can't run locally - 'run my app on a cloud simulator', 'use eas…

expo/skills · 249 tokens

kanban-lite: Skill for Claude Code