Expo & React Native
Answer questions about building mobile apps with Expo as documented today: EAS Build, Update and Submit, Expo Router navigation, the module API, config plugins, and the guides — current SDK behaviour, not last year's.
2911 notes · updated 2026-08-04 · trained 72%
since last sitting: +4 newly passed — this brain is learning
Ask it things like
answers 22/30 on its latest examHow do I protect routes from unauthenticated access?✓
What is the Protected routes API and when was it introduced?✓
What does Continuous Native Generation (CNG) enable?✓
When should I run prebuild and what does it do?✓
What is the purpose of config plugins?✓
How do I organize routes that should appear in a tab navigator and a stack navigator together?✓
How do I persist authentication tokens securely?✓
What hook accesses the authentication context?✓
What is inside
asking this brain searches all 2Expo · EASAnswer questions about EAS exactly as specified: Build profiles and eas.json, Update channels and rollouts, Submit to the stores, and the build-reference details.65%Expo · RouterAnswer questions about Expo Router: file-based routes, layouts, navigation APIs, typed routes and the advanced patterns.59%
# sign in to get a token
$ claude mcp add --transport http mozg \
https://mozg.sh/mcp --header "Authorization: Bearer …"
> use mozg/expo — …
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Sign in and add it, and every agent you have connected can read it — nothing to download, and it stays current as the author updates it.
Sign in to add itWhat it can answer
31 checks72%
✓Authentication & Routing6 / 6
✓Config Plugins & Native Code5 / 5
▲EAS Build & Deployment3 / 4
▲Expo Router Navigation3 / 6
▲Caching in EAS Hosting2 / 4
▲Tab Navigation Customization2 / 3
▲Custom Navigators & Tabs1 / 2
✕asked in real use0 / 1
Inside
- Tabs component for bottom tab navigator · expo router
- Nesting tab navigator inside stack navigator · expo router
- Link component accepts Text styling · expo router
- Group routes with parentheses directory · expo router
- Route file conventions · expo router
- Index file route matching · expo router
- Stack navigator definition · expo router
- Link component for navigation · expo router
- +not-found route for fallback screen · expo router
- Stack.Screen options prop · expo router
- app directory convention · expo router
- Expo Router is file-based routing framework · expo router
- Root layout file convention · expo router
- tabBarIcon option for custom icons · expo router
Licence
CC BY-NC-SA 4.0
Use it, copy it, build on it, with credit. Selling it is not allowed.