DataClass Keep Plugin

An IntelliJ / Android Studio plugin that automatically detects Kotlin data classes missing the @Keep annotation and offers a one-click fix.

When Android apps are minified using ProGuard or R8, data classes can get renamed or removed causing runtime crashes. This plugin warns you and fixes it automatically.

The Problem

When Android apps are minified using ProGuard or R8, data classes can get renamed or removed, causing runtime crashes. The @Keep annotation prevents this — but it's easy to forget to add it.

What This Plugin Does

• Shows a warning on any data class missing @Keep
• Detects Retrofit response classes missing @Keep
• Offers a one-click quick fix to add it automatically
• Works in both IntelliJ IDEA and Android Studio

Demo

When a data class is missing @Keep, the plugin shows a warning and offers a one-click fix directly in the editor.

Installation

From JetBrains Marketplace

Coming soon

Manual

1. Download the latest .zip from Releases
2. In IntelliJ/Android Studio → Settings → Plugins → ⚙️ → Install Plugin from Disk
3. Select the downloaded .zip
4. Restart the IDE

Usage

1. Open any Kotlin file with a data class
2. If @Keep is missing, you'll see a yellow warning underline
3. Click the 💡 lightbulb → select "Add @Keep"

Before:

data class User(
    val name: String,
    val age: Int
)

After:

@androidx.annotation.Keep
data class User(
    val name: String,
    val age: Int
)

Planned Features

• Detect Room DAOs missing proper annotations
• Batch fix — add @Keep to all data classes at once

Built With

• Kotlin
• IntelliJ Platform SDK
• IntelliJ Platform Gradle Plugin

License

MIT License — see LICENSE for details