diff --git a/buildSrc/src/main/kotlin/hu/bsstudio/gradle/JavaConventionPlugin.kt b/buildSrc/src/main/kotlin/hu/bsstudio/gradle/JavaConventionPlugin.kt
index 906e0982..cb6c7fc8 100644
--- a/buildSrc/src/main/kotlin/hu/bsstudio/gradle/JavaConventionPlugin.kt
+++ b/buildSrc/src/main/kotlin/hu/bsstudio/gradle/JavaConventionPlugin.kt
@@ -10,6 +10,11 @@ import org.gradle.kotlin.dsl.configure
 import org.gradle.kotlin.dsl.get
 
 class JavaConventionPlugin : Plugin<Project> {
+    /**
+     * Configures a Gradle project with Java conventions: applies the Java plugin, sets the Java toolchain language version to 25, and makes the `compileOnly` configuration extend from `annotationProcessor`.
+     *
+     * @param project The target Gradle project to configure.
+     */
     override fun apply(project: Project) {
         project.pluginManager.apply(JavaPlugin::class)
 
diff --git a/buildSrc/src/main/kotlin/hu/bsstudio/gradle/JavaLibraryConventionPlugin.kt b/buildSrc/src/main/kotlin/hu/bsstudio/gradle/JavaLibraryConventionPlugin.kt
index ff35e62f..8b808ac7 100644
--- a/buildSrc/src/main/kotlin/hu/bsstudio/gradle/JavaLibraryConventionPlugin.kt
+++ b/buildSrc/src/main/kotlin/hu/bsstudio/gradle/JavaLibraryConventionPlugin.kt
@@ -10,6 +10,11 @@ import org.gradle.kotlin.dsl.configure
 import org.gradle.kotlin.dsl.get
 
 class JavaLibraryConventionPlugin : Plugin<Project> {
+    /**
+     * Configures the given Gradle project as a Java library: applies the Java Library plugin, sets the Java toolchain language version to 25, and makes the `compileOnly` configuration extend from `annotationProcessor`.
+     *
+     * @param project The target Gradle project to configure.
+     */
     override fun apply(project: Project) {
         project.pluginManager.apply(JavaLibraryPlugin::class)
 
diff --git a/buildSrc/src/main/kotlin/hu/bsstudio/gradle/KotlinConventionPlugin.kt b/buildSrc/src/main/kotlin/hu/bsstudio/gradle/KotlinConventionPlugin.kt
index 364c9aba..92c1c9ba 100644
--- a/buildSrc/src/main/kotlin/hu/bsstudio/gradle/KotlinConventionPlugin.kt
+++ b/buildSrc/src/main/kotlin/hu/bsstudio/gradle/KotlinConventionPlugin.kt
@@ -6,6 +6,13 @@ import org.gradle.kotlin.dsl.assign
 import org.gradle.kotlin.dsl.withType
 
 class KotlinConventionPlugin : Plugin<Project> {
+    /**
+     * Configures the project with Kotlin plugins and a consistent Kotlin compiler configuration.
+     *
+     * Applies the Kotlin JVM, Kotlin Spring and Kotlin JPA plugins, and configures all KotlinCompile
+     * tasks to enable strict nullability checks, enable extra warnings, treat all warnings as errors,
+     * and target JVM 25.
+     */
     override fun apply(project: Project) {
         project.pluginManager.apply("org.jetbrains.kotlin.jvm")
         project.pluginManager.apply("org.jetbrains.kotlin.plugin.spring")