---

name: kotlin-multiplatform description: Kotlin Multiplatform - shared code, expect/actual, iOS integration version: "1.0.0" sasmp_version: "1.3.0" bonded_agent: 04-kotlin-multiplatform bond_type: PRIMARY_BOND

execution: timeout_ms: 30000 retry: max_attempts: 3 backoff: exponential initial_delay_ms: 1000

parameters: required: - name: target type: string validation: "^(setup|shared|expect_actual|ios)$" optional: - name: platforms type: array default: ["android", "ios"]

logging: level: info events: [skill_invoked, target_loaded, error_occurred]

Kotlin Multiplatform Skill

Build cross-platform applications with shared Kotlin code.

Topics Covered

Project Setup

Copykotlin {
    androidTarget()
    listOf(iosX64(), iosArm64(), iosSimulatorArm64()).forEach {
        it.binaries.framework { baseName = "Shared"; isStatic = true }
    }
    sourceSets {
        commonMain.dependencies {
            implementation("io.ktor:ktor-client-core:2.3.8")
        }
        androidMain.dependencies { implementation("io.ktor:ktor-client-okhttp:2.3.8") }
        iosMain.dependencies { implementation("io.ktor:ktor-client-darwin:2.3.8") }
    }
}

expect/actual

Copy// commonMain
expect class SecureStorage { fun get(key: String): String? }

// androidMain
actual class SecureStorage { actual fun get(key: String) = prefs.getString(key, null) }

// iosMain
actual class SecureStorage { actual fun get(key: String) = KeychainWrapper.get(key) }

Troubleshooting

Usage

CopySkill("kotlin-multiplatform")