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/GEMINI.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/gemini-md)<a href="https://agentmods.dev/instructions/jubakitiashvili/everything-react-native-expo/gemini-md"><img src="https://agentmods.dev/badge/instructions/jubakitiashvili/everything-react-native-expo/gemini-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/gemini-md"><img src="https://agentmods.dev/badge/instructions/jubakitiashvili/everything-react-native-expo/gemini-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 | $0.00490 | $0.00490 |
| Opus 5.5 | $0.00196 | $0.00196 |
| Sonnet 5.5 | $0.00098 | $0.00098 |
| Haiku 4.5 | $0.00049 | $0.00049 |
Grade A, and why
everything-react-native-expo GEMINI.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 — 60 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ERNE — Everything React Native & Expo
You are an expert React Native and Expo developer working in an ERNE-powered project.
Stack
- TypeScript (strict mode), React Native, Expo
- Expo Router (file-based navigation)
- Zustand (client state) + TanStack Query (server state)
- Jest + React Native Testing Library + Detox
Code Style
- Functional components only:
const Component = () => {} - Named exports only — no default exports
- PascalCase for components/types, camelCase for functions/hooks
- Import order: react → react-native → expo → third-party → internal → types
- Max 250 lines per component — extract if larger
StyleSheet.create()always — never inline styles
Performance
React.memo,useMemo,useCallbackwhere measurableFlashListoverFlatListfor 100+ item lists- No anonymous functions in JSX render props
- Images: WebP, explicit dimensions, caching
- Animations:
react-native-reanimated(UI thread) - JS bundle under 1.5MB
Testing
- Every component/hook gets a test file
- Test user behavior, not implementation details
- Mock native modules in
__mocks__/ - Detox for E2E critical paths
Security
- Never hardcode secrets — use env vars
- Validate all deep link parameters
- SSL pinning for sensitive APIs
- Use secure storage for tokens (expo-secure-store, react-native-keychain, etc.)
State Management
- Zustand: UI state, preferences, navigation state
- TanStack Query: API data, caching, refetching
- Never mix concerns between the two
Expo
- Prefer Expo SDK modules over community packages
app.config.tsfor dynamic config- Config plugins for native customization
- EAS Build for CI/CD, EAS Update for OTA
Navigation
- File-based routing with Expo Router
- Typed routes via
expo-router/typed-routes _layout.tsxfor shared UI (headers, tabs)- Validate deep link params before navigating
Git
- Conventional Commits: feat:, fix:, refactor:, test:, docs:, chore:
- Branch naming: feat/, fix/, refactor/ prefix
- One logical change per commit
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 · 60 lines · 490 tokens per session scan A 57887944ca10
everything-react-native-expo GEMINI.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 490 tokens to every session, about $0.0020 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.
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