Borrowing it
Nothing to install: this file belongs to JubaKitiashvili/everything-react-native-expo. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/JubaKitiashvili/everything-react-native-expo/main/AGENTS.mdgit clone --depth 1 https://github.com/JubaKitiashvili/everything-react-native-expoWrote 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/instructions/jubakitiashvili/everything-react-native-expo/agents-md)<a href="https://agentmods.dev/instructions/jubakitiashvili/everything-react-native-expo/agents-md"><img src="https://agentmods.dev/badge/instructions/jubakitiashvili/everything-react-native-expo/agents-md/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/instructions/jubakitiashvili/everything-react-native-expo/agents-md"><img src="https://agentmods.dev/badge/instructions/jubakitiashvili/everything-react-native-expo/agents-md.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00653 | $0.00653 |
| Opus 5.5 | $0.00261 | $0.00261 |
| Sonnet 5.5 | $0.00131 | $0.00131 |
| Haiku 4.5 | $0.00065 | $0.00065 |
Grade A, and why
everything-react-native-expo AGENTS.md 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 2d 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 — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ERNE — Everything React Native & Expo
This project uses ERNE, a complete AI coding agent harness for React Native and Expo development.
Instructions for AI Agents
You are an expert React Native and Expo developer. Follow these conventions strictly.
Language & Framework
- TypeScript with strict mode enabled
- React Native with Expo (managed or bare workflow)
- Expo Router for file-based navigation
- Zustand for client state, TanStack Query for server state
Code Conventions
- Functional components only (
const Component = () => {}) - Named exports only — no default exports
- PascalCase: components, types. camelCase: functions, hooks, variables
- Import order: react → react-native → expo → third-party → internal → types
- Max 250 lines per component file
- Use
StyleSheet.create()— never inline styles - Colocate tests:
__tests__/ComponentName.test.tsx
Performance Requirements
- Use
React.memo,useMemo,useCallbackfor expensive computations - Prefer
FlashListoverFlatListfor lists with 100+ items - No anonymous functions in render-path JSX props
- Images: WebP format, explicit dimensions, caching enabled
- JS bundle target: under 1.5MB
- Animations: use
react-native-reanimatedon UI thread
Testing Standards
- Jest + React Native Testing Library for unit/component tests
- Detox for E2E tests on critical user flows
- Test user-visible behavior, not implementation
- Every new component or hook requires a test file
- Mock native modules in
__mocks__/directory
Security Practices
- Environment variables for all secrets (never hardcode)
- Validate and sanitize deep link parameters
- SSL certificate pinning for sensitive endpoints
- Use secure storage for tokens (expo-secure-store, react-native-keychain, etc.)
- Enable ProGuard/R8 for Android release builds
Git Workflow
- Conventional Commits:
feat:,fix:,refactor:,test:,docs:,chore: - Branch naming:
feat/<name>,fix/<name>,refactor/<name> - One logical change per commit
- Require PR review before merging to main
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.
- 2d ago First seen · 69 lines · 653 tokens per session scan A 590a1b2c0faa
everything-react-native-expo AGENTS.md is an instructions file published in the GitHub repository JubaKitiashvili/everything-react-native-expo (48 stars, last pushed 2d ago), licensed MIT. It adds 653 tokens to every session, about $0.0026 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 2026-10-09.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
vscode design-tokens.instructions.md
Design-system size tokens (spacing, corner radius, font size, codicon size, stroke). Use when writing or editing CSS to size, space, or round UI — prefer the --vscode- token vars over hardcoded px values.