# Android Navigation Type Safe

> Standards for Jetpack Navigation Compose (Type-safe). Use when implementing type-safe navigation graphs in Jetpack Compose for Android. (triggers: **/*NavHost.kt, **/*Graph.kt, NavHost, navController, @Serializable)

- Skill: `comeonoliver/android-navigation-type-safe` (Agent Skill)
- Install (CLI): `npx skillmds@latest add comeonoliver/android-navigation-type-safe`
- Raw SKILL.md: https://api.skillmd.com/api/skills/comeonoliver/android-navigation-type-safe/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: ComeOnOliver (https://skillmd.com/u/comeonoliver)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/comeonoliver/android-navigation-type-safe

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# Android Navigation Standards

## **Priority: P0**

## Implementation Guidelines

### Type-Safe Navigation

- **Library**: Navigation Compose 2.8.0+.
- **Routes**: Use `@Serializable` objects/classes instead of String routes.
- **Arguments**: No manual bundle parsing. Use `.toRoute<T>()`.

### Structure

- **Graphs**: Split large apps into nested navigation graphs (`navigation` extension functions).
- **Hoisting**: Hoist navigation events out of Screens. Composable screens should accept callbacks (`onNavigateToX`).

## Anti-Patterns

- **No String Routes**: Use @Serializable typed objects/classes for destinations.
- **No NavController in Composables**: Hoist navigation events to screen-level callbacks.

## References

- [Route Definitions](references/implementation.md)