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android-navigation-type-safe

Implement type-safe Jetpack Navigation Compose routes using Kotlin serialization. Use only when defining typed Compose destinations and arguments; defer XML navigation, deep links, animations, and generic auth or bottom-navigation work.

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  • SKILL.md1.6 KB
  • evals/evals.json3.2 KB
  • references/implementation.md783 B

SKILL.md (original)

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Android Navigation Standards

Priority: P0 (CRITICAL)

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

Required route example

  • For a product detail argument, define @Serializable data class ProductDetail(val productId: Long) and navigate with the typed destination; retrieve it with toRoute<ProductDetail>().

Canonical response anchors

When this skill applies, preserve the following domain terminology or equivalent concrete examples in the answer when relevant:

  • Define ProductDetail(val productId

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