diff --git a/sns_service/src/main/kotlin/joryu/sns_service/chat/config/WebSocketConfig.kt b/sns_service/src/main/kotlin/joryu/sns_service/chat/config/WebSocketConfig.kt
index 81b75fc..b23d260 100644
--- a/sns_service/src/main/kotlin/joryu/sns_service/chat/config/WebSocketConfig.kt
+++ b/sns_service/src/main/kotlin/joryu/sns_service/chat/config/WebSocketConfig.kt
@@ -7,15 +7,25 @@ import org.springframework.web.socket.config.annotation.StompEndpointRegistry
 import org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer
 
 
+/**
+ * WebSocket 설정을 관리하는 클래스
+ */
 @Configuration
 @EnableWebSocketMessageBroker
 class WebSocketConfig : WebSocketMessageBrokerConfigurer {
 
+    /**
+     * 목적지 prefix 가 "/sub" 인 메시지를 필터링합니다. (outbound)
+     * 도착지 prefix 가 "/pub" 인 메시지를 필터링합니다. (inbound)
+     */
     override fun configureMessageBroker(config: MessageBrokerRegistry) {
         config.enableSimpleBroker("/sub")
         config.setApplicationDestinationPrefixes("/pub")
     }
 
+    /**
+     * STOMP endpoint 를 설정합니다.
+     */
     override fun registerStompEndpoints(registry: StompEndpointRegistry) {
         registry
             .addEndpoint("/ws-stomp")