kotlin-multiplatform-library-fundamentals

What problem does it solve?

This Skill provides a reproducible workflow and scaffolding for creating robust Kotlin Multiplatform libraries that are compatible with JVM (Java 8), iOS, and JavaScript and that enforce a stable, explicit API surface to avoid cross-platform integration issues.

Core Features & Use Cases

• Project scaffolding: Automates creation of conventional source sets and a preconfigured build.gradle.kts to jumpstart a new KMP module.
• Build and API guidance: Prescribes explicit API mode, JVM toolchain set to Java 8, and multi-target definitions to maintain binary compatibility and consistent artifacts.
• iOS interoperability advice: Practical guidance to avoid common pitfalls when exposing Kotlin APIs to Swift/Objective-C, including handling generics, sealed classes, and suspend functions.
• Use Case: Use this Skill when you need to deliver a shared utility or SDK that must integrate with legacy JVM applications and native iOS and JS consumers without runtime or ABI surprises.

Quick Start

Run the scaffolding script to create a new KMP module and then inspect the generated build configuration and source sets.