diff --git a/contexthub/aidl/aidl_api/android.hardware.contexthub/current/android/hardware/contexthub/HostEndpointInfo.aidl b/contexthub/aidl/aidl_api/android.hardware.contexthub/current/android/hardware/contexthub/HostEndpointInfo.aidl
index e7dcbc7..84e8531 100644
--- a/contexthub/aidl/aidl_api/android.hardware.contexthub/current/android/hardware/contexthub/HostEndpointInfo.aidl
+++ b/contexthub/aidl/aidl_api/android.hardware.contexthub/current/android/hardware/contexthub/HostEndpointInfo.aidl
@@ -40,7 +40,7 @@
   @nullable String attributionTag;
   @Backing(type="int") @VintfStability
   enum Type {
-    TYPE_FRAMEWORK = 1,
-    TYPE_APP = 2,
+    FRAMEWORK = 1,
+    APP = 2,
   }
 }
diff --git a/contexthub/aidl/android/hardware/contexthub/ContextHubMessage.aidl b/contexthub/aidl/android/hardware/contexthub/ContextHubMessage.aidl
index 867da2f..95d478e 100644
--- a/contexthub/aidl/android/hardware/contexthub/ContextHubMessage.aidl
+++ b/contexthub/aidl/android/hardware/contexthub/ContextHubMessage.aidl
@@ -32,10 +32,14 @@
      */
     char hostEndPoint;
 
-    /** The type of this message */
+    /**
+     * The type of this message payload, defined by the communication endpoints (i.e.
+     * either the nanoapp or the host endpoint). This value can be used to distinguish
+     * the handling of messageBody (e.g. for decoding).
+     */
     int messageType;
 
-    /** The payload containing the message */
+    /** The payload containing the message. */
     byte[] messageBody;
 
     /**
diff --git a/contexthub/aidl/android/hardware/contexthub/HostEndpointInfo.aidl b/contexthub/aidl/android/hardware/contexthub/HostEndpointInfo.aidl
index 40a231d..a9d6657 100644
--- a/contexthub/aidl/android/hardware/contexthub/HostEndpointInfo.aidl
+++ b/contexthub/aidl/android/hardware/contexthub/HostEndpointInfo.aidl
@@ -37,12 +37,12 @@
     @Backing(type="int")
     enum Type {
         /**
-           This endpoint is from the Android framework, where packageName and attributionTag may be
-           empty.
+         * This endpoint is from the Android framework, where packageName and attributionTag may be
+         * empty.
          */
-        TYPE_FRAMEWORK = 1,
+        FRAMEWORK = 1,
 
         /** This endpoint is an Android app. */
-        TYPE_APP = 2,
+        APP = 2,
     }
 }