diff --git a/src/index.ts b/src/index.ts
index 9cd4bfa..7c0c910 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,6 +1,7 @@
 import { AcaDefect, AcaFuelLow, AcaHeadingToBase, Message, MissileToOwnshipDetected, RequestApprovalToAttack } from "./schema";
 import typia from "typia";
 
+
 /* sample messages ********************************************************************************/
 
 const SAMPLES: Array<Message> = [
@@ -54,7 +55,7 @@ const SAMPLES: Array<Message> = [
     data: {
       acaId: 5,
       fuelLevel: 0.1,
-    }
+    },
   } satisfies AcaFuelLow,
 
   // example convo 3: low priority, low threat, no collateral
@@ -86,7 +87,7 @@ const SAMPLES: Array<Message> = [
     data: {
       acaId: 5,
       reason: "fuelLow",
-    }
+    },
   } satisfies AcaHeadingToBase,
 
   // example convo 4: low priority, high threat, no collateral
@@ -180,6 +181,7 @@ const SAMPLES: Array<Message> = [
   } satisfies RequestApprovalToAttack,
 ];
 
+
 /* validation *************************************************************************************/
 
 const VALIDATORS = {
diff --git a/src/schema.ts b/src/schema.ts
index cffffe5..3184e68 100644
--- a/src/schema.ts
+++ b/src/schema.ts
@@ -1,7 +1,7 @@
 import { tags } from "typia";
 
 
-/* messages *******************************************************************/
+/* messages ***************************************************************************************/
 
 export type Message = RequestApprovalToAttack | AcaFuelLow | MissileToOwnshipDetected | AcaDefect | AcaHeadingToBase;
 
@@ -26,7 +26,7 @@ export type MissileToOwnshipDetected = BaseMessage<"MissileToOwnshipDetected", {
   detectedByAca?: Id,
   acaAttackWeapon?: Weapon,
   choiceWeight: Range<-1, 1>, // specifies which choice option to prefer, -1: avoid, 1: intervene
-}>
+}>;
 
 export type AcaFuelLow = BaseMessage<"AcaFuelLow", {
   acaId: Id,
@@ -36,15 +36,15 @@ export type AcaFuelLow = BaseMessage<"AcaFuelLow", {
 export type AcaDefect = BaseMessage<"AcaDefect", {
   acaId: Id,
   message: string,
-}>
+}>;
 
 export type AcaHeadingToBase = BaseMessage<"AcaHeadingToBase", {
   acaId: Id,
   reason?: "fuelLow" | "weaponsLow",
-}>
+}>;
 
 
-/* utility types **************************************************************/
+/* utility types **********************************************************************************/
 
 export type Id = number & tags.Type<"uint64">;
 export type Priority = number & tags.Type<"uint32"> & tags.Maximum<10>;