kotlin-multiplatform-proguard-r8

When to Use This Skill

Use when you need to:

• Enable R8 minification for a KMP Android release build
• Debug a release-only crash caused by ProGuard removing or renaming classes
• Write keep rules for KMP artifacts (shared code, Koin modules, Ktor, SQLDelight)
• Audit proguard-rules.pro for over-broad or missing rules
• Reduce APK size without breaking runtime behavior

Trigger keywords: ProGuard, R8, obfuscation, minification, shrinking, keep rules, proguard-rules.pro, release build crash, ClassNotFoundException release, NoSuchMethodException release, APK size, minifyEnabled, shrinkResources, R8 full mode, Koin keep, Ktor keep, SQLDelight keep, kotlinx.serialization keep.

Freshness rule: R8 full mode and AGP default rule sets change between AGP versions — recheck the AGP and R8 release notes before upgrading past a minor version.