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 pproenca/dot-skills --skill expo-react-native-codergit clone --depth 1 https://github.com/pproenca/dot-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/pproenca/dot-skills/expo-react-native-coder)<a href="https://agentmods.dev/skills/pproenca/dot-skills/expo-react-native-coder"><img src="https://agentmods.dev/badge/skills/pproenca/dot-skills/expo-react-native-coder/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/pproenca/dot-skills/expo-react-native-coder"><img src="https://agentmods.dev/badge/skills/pproenca/dot-skills/expo-react-native-coder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
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 | $0.00062 | $0.01857 |
| Opus 5 | $0.00031 | $0.00928 |
| Sonnet 5 | $0.00012 | $0.00371 |
| Haiku 4.5 | $0.00006 | $0.00186 |
Grade A, and why
expo-react-native-coder 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.
How it starts
The opening of the file, as written. The whole thing — 149 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Expo React Native Coder Best Practices
Comprehensive feature development guide for Expo React Native applications. Contains 50 rules across 10 categories, covering everything from project setup to testing. Includes production-ready code templates for common features.
When to Apply
Reference these guidelines when:
- Setting up a new Expo project with TypeScript
- Building navigation with Expo Router (tabs, stacks, drawers, modals)
- Creating screens (list, detail, form, settings)
- Implementing authentication flows with protected routes
- Configuring deep linking and universal links
Rule Categories by Priority
| Priority | Category | Impact | Prefix |
|---|---|---|---|
| 1 | Project Setup & Configuration | CRITICAL | setup- |
| 2 | Routing & Navigation | CRITICAL | route- |
| 3 | Screen Patterns & Layouts | HIGH | screen- |
| 4 | Data Fetching & State | HIGH | data- |
| 5 | Authentication & Security | HIGH | auth- |
| 6 | Deep Linking & Universal Links | HIGH | link- |
| 7 | Native UX Patterns | MEDIUM-HIGH | ux- |
| 8 | Forms & User Input | MEDIUM | form- |
| 9 | Assets & Theming | MEDIUM | asset- |
| 10 | Error Handling & Testing | MEDIUM | test- |
Quick Reference
1. Project Setup & Configuration (CRITICAL)
setup-typescript-config- Configure TypeScript with strict modesetup-app-config-typescript- Use typed app.config.tssetup-environment-variables- EXPO_PUBLIC_ prefix for client varssetup-eas-build-profiles- EAS build profiles per environmentsetup-development-build- Development builds vs Expo Go
2. Routing & Navigation (CRITICAL)
route-file-based-routing- File-based routing with Expo Routerroute-tab-navigator- Tab navigator with route groupsroute-dynamic-segments- Dynamic route segments [param]route-stack-within-tabs- Nested stack in tabsroute-modal-presentation- Modal screen presentationroute-typed-routes- Enable typed routesroute-drawer-navigator- Drawer navigator setup
What ships with it
60 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.
- AGENTS.md 7.9 KB
- assets/templates/_template.md 718 B
- assets/templates/components/error-boundary.tsx 2.8 KB
- assets/templates/hooks/use-auth.tsx 3.4 KB
- assets/templates/layouts/auth-layout.tsx 2.0 KB
- assets/templates/layouts/tab-layout.tsx 1.5 KB
- assets/templates/screens/detail-screen.tsx 3.4 KB
- assets/templates/screens/form-screen.tsx 6.2 KB
- assets/templates/screens/list-screen.tsx 3.9 KB
- metadata.json 833 B
- README.md 4.8 KB
- references/_sections.md 2.1 KB
- references/asset-font-loading.md 2.0 KB
- references/asset-image-optimization.md 1.9 KB
- references/asset-splash-screen.md 2.1 KB
- references/asset-vector-icons.md 2.0 KB
- references/auth-context-provider.md 2.3 KB
- references/auth-login-form.md 3.7 KB
- references/auth-oauth-flow.md 2.2 KB
- references/auth-protected-routes.md 2.1 KB
- references/auth-splash-loading.md 1.9 KB
- references/data-abort-controller.md 2.1 KB
- references/data-api-routes.md 1.9 KB
- references/data-async-storage-simple.md 2.1 KB
- references/data-fetch-on-focus.md 1.7 KB
- references/data-secure-store.md 2.0 KB
- references/data-sqlite-local.md 2.2 KB
- references/form-controlled-inputs.md 3.6 KB
- references/form-dismiss-keyboard.md 2.2 KB
- references/form-submit-button-state.md 2.3 KB
- references/form-text-input-config.md 2.6 KB
- references/link-android-app-links.md 2.1 KB
- references/link-deep-linking-scheme.md 1.7 KB
- references/link-handle-incoming.md 2.3 KB
- references/link-universal-links-ios.md 1.6 KB
- references/route-drawer-navigator.md 2.2 KB
- references/route-dynamic-segments.md 1.5 KB
- references/route-file-based-routing.md 1.8 KB
- references/route-modal-presentation.md 1.8 KB
- references/route-stack-within-tabs.md 1.9 KB
- references/route-tab-navigator.md 2.2 KB
- references/route-typed-routes.md 1.5 KB
- references/screen-detail-params.md 2.1 KB
- references/screen-header-options.md 2.1 KB
- references/screen-list-flashlist.md 1.6 KB
- references/screen-loading-state.md 2.4 KB
- references/screen-pull-to-refresh.md 1.8 KB
- references/screen-settings-list.md 3.0 KB
- references/setup-app-config-typescript.md 1.5 KB
- references/setup-development-build.md 1.3 KB
- references/setup-eas-build-profiles.md 1.4 KB
- references/setup-environment-variables.md 1.4 KB
- references/setup-typescript-config.md 1008 B
- references/test-component-testing.md 2.1 KB
- references/test-e2e-maestro.md 1.5 KB
- references/test-error-boundary.md 2.8 KB
- references/test-jest-setup.md 1.7 KB
- references/ux-gesture-handler.md 2.2 KB
- references/ux-haptic-feedback.md 2.3 KB
- references/ux-keyboard-avoiding.md 2.1 KB
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 · 149 lines · 62 tokens per session scan A 8375b2709868
expo-react-native-coder is a skill published in the GitHub repository pproenca/dot-skills (205 stars, last pushed 24d ago), licensed MIT. It adds 62 tokens to every session and 1,857 once invoked, about $0.0003 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.
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