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claude-forge: Skill for Claude Code

.claude/skills/scaffold-react-native/SKILL.md

scaffold-react-native is a skill for Claude Code from arunanksharan/claude-forge. It costs 90 tokens per session (521 once invoked), scanned A, original, Unlicense.

A setup guide for creating a React Native mobile app with Expo, file-based routing, shared data tools, local storage, and build services.

In plain words
What is it for?
Use it to create iOS and Android apps with authentication screens, API access, secure token storage, tabs, and a basic testing setup.
Why use it?
It removes much of the initial app structure and library configuration work for a new mobile project.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is arunanksharan/claude-forge's own configuration. It tells Claude Code how to work on claude-forge itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything claude-forge configures →

not rated 2repo 6mo ago A scan 90 tokens original Unlicense
View source ↗ arunanksharan/claude-forge
Reuse

Borrowing it

Nothing to install: this file belongs to arunanksharan/claude-forge. 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/arunanksharan/claude-forge/main/.claude/skills/scaffold-react-native/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/arunanksharan/claude-forge

Made for: Claude Code.

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.

agentmods badge for scaffold-react-native

README.md
[![agentmods](https://agentmods.dev/badge/skills/arunanksharan/claude-forge/scaffold-react-native/github.svg)](https://agentmods.dev/skills/arunanksharan/claude-forge/scaffold-react-native)
Your own site
<a href="https://agentmods.dev/skills/arunanksharan/claude-forge/scaffold-react-native"><img src="https://agentmods.dev/badge/skills/arunanksharan/claude-forge/scaffold-react-native/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.

agentmods 80×15 button for scaffold-react-native

Your own site · 80×15
<a href="https://agentmods.dev/skills/arunanksharan/claude-forge/scaffold-react-native"><img src="https://agentmods.dev/badge/skills/arunanksharan/claude-forge/scaffold-react-native.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 90 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 521 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00090 $0.00521
Opus 5.5 $0.00036 $0.00208
Sonnet 5.5 $0.00018 $0.00104
Haiku 4.5 $0.00009 $0.00052

Measured 2mo ago against content hash d14c1cfa03b7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

scaffold-react-native 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 2mo 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.

.claude/skills/scaffold-react-native/SKILL.md · 25 lines

What it actually says

Scaffold React Native Project — Expo (claudeforge)

Follow the master prompt at mobile/react-native/PROMPT.md. Steps:

  1. Confirm parameters: app_name, slug (kebab-case), package_id (com.x.y), description, include auth flag, api_base_url.
  2. Read mobile/react-native/PROMPT.md — directory tree, locked stack (Expo SDK 52, expo-router 4, etc.), key files (package.json, app.config.ts, root layouts, API client, auth store, login screen).
  3. Generate:
    • npx create-expo-app@latest {{app-name}} --template blank-typescript
    • cd {{app-name}} and replace package.json deps + scripts
    • npx expo install expo-router expo-secure-store expo-status-bar expo-linking ... for the Expo plugins (use expo install for those, pnpm add for the rest)
    • Replace app.json with app.config.ts
    • Create the app/ (expo-router routes) and src/ (api, stores, components, lib) directory tree
    • Write root layouts (app/_layout.tsx, (auth)/_layout.tsx, (app)/_layout.tsx with Tabs)
    • Write API client (with SecureStore-backed Bearer), Zustand auth-store, login + signup screens
  4. Verify: npx expo start, smoke test on iOS Simulator + Android emulator.
  5. Set up EAS if user is ready: eas init, eas build:configure, write eas.json with development / preview / production profiles.
  6. Hand off: setup steps + how to run EAS Build.

Do NOT use AsyncStorage (use MMKV), axios (use fetch), redux (use Zustand+TanStack Query), or NativeBase. Use FlashList instead of FlatList for big lists.

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. 2mo ago First seen · 25 lines · 90 tokens per session scan A d14c1cfa03b7

Subscribe to this mod's changes

scaffold-react-native is a skill published in the GitHub repository arunanksharan/claude-forge (2 stars, last pushed 6mo ago), licensed Unlicense. It adds 90 tokens to every session and 521 once invoked, about $0.0004 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 2026-08-31.

Mobile
Related

scaffold-react-native compared with skills from other repositories

scaffold-react-native next to 6 skills from other repositories
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scaffold-react-nativearunanksharan/claude-forgeSkill26mo agoUnlicenseA90Claude Code
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glance-canonical-layoutsandroid/skillsSkill10kyesterdayApache-2.0A56Claude Code
android-tombstone-symbolicationdotnet/skillsSkill5.8kyesterdayMITA176Claude Code
dogfoodcallstack/agent-deviceSkill5.3kyesterdayMITA55Claude Code
winapp-mauimicrosoft/winappCliSkill1.4kyesterdayMITA68Claude Code
app_remixrome-os/romeSkill889yesterdayMITA50Claude Code, Codex