Mobile Kotlin Multiplatform

Purpose

Guide for building Kotlin Multiplatform mobile apps with shared business logic, Compose Multiplatform UI, and platform-specific integrations.

Agent Protocol

Trigger

Phrases: "Kotlin Multiplatform", "KMP", "Compose Multiplatform", "shared Kotlin", "KMP module", "expect/actual", "commonMain", "KMP project", "multiplatform library"

Input Context

• Module structure (commonMain, androidMain, iosMain paths)
• Build files (build.gradle.kts with KMP plugin)
• Shared domain models and interfaces
• Platform-specific implementations

Output Artifact

Working KMP module with: commonMain business logic, expect/actual declarations, Compose Multiplatform screens, Gradle multi-module build configuration.