diff --git a/libraries/tools/kotlin-gradle-plugin-idea/ReadMe.md b/libraries/tools/kotlin-gradle-plugin-idea/ReadMe.md
index d0a4dfb9a3d..f8bb4c0aa8e 100644
--- a/libraries/tools/kotlin-gradle-plugin-idea/ReadMe.md
+++ b/libraries/tools/kotlin-gradle-plugin-idea/ReadMe.md
@@ -1,13 +1,24 @@
 # Kotlin Gradle Plugin Models shared between IDEA import and KGP
-The classes defined in this module will be available inside the Kotlin Gradle Plugin (KGP) 
+
+The classes defined in this module will be available inside the Kotlin Gradle Plugin (KGP)
 as well as in the IDE import (GradleProject).
 
-## Binary Compatibility: 
+## Binary Compatibility:
+
 Binary compatibility can be tested by
 `./gradlew :tools:binary-compatibility-validator:clean :tools:binary-compatibility-validator:test`
 
 Binary incompatible changes have to go through a proper deprecation cycle after releases
 
 ### Unstable APIs / KotlinGradlePluginApi
-Some APIs are marked with 'KotlinGradlePluginApi' which means, that those are not kept binary compatible and are considered 'unstable'
-from the IDEA perspective. Typically constructors for models are marked like this
+
+Some APIs are marked with 'KotlinGradlePluginApi' which means, that those are not kept binary compatible and are considered 'unstable' from
+the IDEA perspective. Typically constructors for models are marked like this
+
+Non Stable by default:
+
+- data class componentX methods
+
+Kept Stable
+
+- data class .copy methods
diff --git a/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinFragment.kt b/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinFragment.kt
index d50c267b47d..ed5b5a545cc 100644
--- a/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinFragment.kt
+++ b/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinFragment.kt
@@ -16,7 +16,7 @@ interface IdeaKotlinFragment : Serializable {
     val resourceDirectories: Collection<IdeaKotlinResourceDirectory>
 }
 
-class IdeaKotlinFragmentImpl @KotlinGradlePluginApi constructor(
+data class IdeaKotlinFragmentImpl @KotlinGradlePluginApi constructor(
     override val name: String,
     override val languageSettings: IdeaKotlinLanguageSettings?,
     override val dependencies: Collection<IdeaKotlinFragmentDependency>,
diff --git a/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinFragmentDependency.kt b/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinFragmentDependency.kt
index 781f1aa8ffe..18fc69085a6 100644
--- a/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinFragmentDependency.kt
+++ b/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinFragmentDependency.kt
@@ -5,4 +5,6 @@
 
 package org.jetbrains.kotlin.gradle.kpm.idea
 
-interface IdeaKotlinFragmentDependency
+import java.io.Serializable
+
+interface IdeaKotlinFragmentDependency : Serializable
diff --git a/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinLanguageSettings.kt b/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinLanguageSettings.kt
index 13565ce47bd..4ff64de2fb1 100644
--- a/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinLanguageSettings.kt
+++ b/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinLanguageSettings.kt
@@ -6,8 +6,9 @@
 package org.jetbrains.kotlin.gradle.kpm.idea
 
 import java.io.File
+import java.io.Serializable
 
-interface IdeaKotlinLanguageSettings {
+interface IdeaKotlinLanguageSettings : Serializable {
     val languageVersion: String?
     val apiVersion: String?
     val isProgressiveMode: Boolean
@@ -18,7 +19,7 @@ interface IdeaKotlinLanguageSettings {
     val freeCompilerArgs: Collection<String>
 }
 
-class IdeaKotlinLanguageSettingsImpl @KotlinGradlePluginApi constructor(
+data class IdeaKotlinLanguageSettingsImpl @KotlinGradlePluginApi constructor(
     override val languageVersion: String?,
     override val apiVersion: String?,
     override val isProgressiveMode: Boolean,
diff --git a/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinModule.kt b/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinModule.kt
index 12e50601a99..c514b2cdf35 100644
--- a/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinModule.kt
+++ b/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinModule.kt
@@ -12,7 +12,7 @@ interface IdeaKotlinModule : Serializable {
     val fragments: Collection<IdeaKotlinFragment>
 }
 
-class IdeaKotlinModuleImpl @KotlinGradlePluginApi constructor(
+data class IdeaKotlinModuleImpl @KotlinGradlePluginApi constructor(
     override val moduleIdentifier: IdeaKotlinModuleIdentifier,
     override val fragments: Collection<IdeaKotlinFragment>
 ) : IdeaKotlinModule
diff --git a/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinModuleIdentifier.kt b/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinModuleIdentifier.kt
index 3d6c41f1422..478c857f435 100644
--- a/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinModuleIdentifier.kt
+++ b/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinModuleIdentifier.kt
@@ -21,13 +21,13 @@ interface IdeaKotlinMavenModuleIdentifier : IdeaKotlinModuleIdentifier {
     val name: String
 }
 
-class IdeaKotlinLocalModuleIdentifierImpl @KotlinGradlePluginApi constructor(
+data class IdeaKotlinLocalModuleIdentifierImpl @KotlinGradlePluginApi constructor(
     override val moduleClassifier: String?,
     override val buildId: String,
     override val projectId: String
 ) : IdeaKotlinLocalModuleIdentifier
 
-class IdeaKotlinMavenModuleIdentifierImpl @KotlinGradlePluginApi constructor(
+data class IdeaKotlinMavenModuleIdentifierImpl @KotlinGradlePluginApi constructor(
     override val moduleClassifier: String?,
     override val group: String,
     override val name: String
diff --git a/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinProjectModel.kt b/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinProjectModel.kt
index e55786f90f3..3f88959d068 100644
--- a/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinProjectModel.kt
+++ b/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinProjectModel.kt
@@ -15,7 +15,7 @@ interface IdeaKotlinProjectModel : Serializable {
     val modules: List<IdeaKotlinModule>
 }
 
-class IdeaKotlinProjectModelImpl @KotlinGradlePluginApi constructor(
+data class IdeaKotlinProjectModelImpl @KotlinGradlePluginApi constructor(
     override val coreLibrariesVersion: String,
     override val explicitApiModeCliOption: String?,
     override val kotlinNativeHome: File,
diff --git a/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinResourceDirectory.kt b/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinResourceDirectory.kt
index 612650321df..4af1e573fcf 100644
--- a/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinResourceDirectory.kt
+++ b/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinResourceDirectory.kt
@@ -12,6 +12,6 @@ interface IdeaKotlinResourceDirectory : Serializable {
     val file: File
 }
 
-class IdeaKotlinResourceDirectoryImpl @KotlinGradlePluginApi constructor(
+data class IdeaKotlinResourceDirectoryImpl @KotlinGradlePluginApi constructor(
     override val file: File
 ) : IdeaKotlinResourceDirectory
diff --git a/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinSourceDirectory.kt b/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinSourceDirectory.kt
index c68a1617de1..e163cfff10c 100644
--- a/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinSourceDirectory.kt
+++ b/libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinSourceDirectory.kt
@@ -12,6 +12,6 @@ interface IdeaKotlinSourceDirectory : Serializable {
     val file: File
 }
 
-class IdeaKotlinSourceDirectoryImpl @KotlinGradlePluginApi constructor(
+data class IdeaKotlinSourceDirectoryImpl @KotlinGradlePluginApi constructor(
     override val file: File,
 ) : IdeaKotlinSourceDirectory