diff --git a/package.json b/package.json
index d0d201b..6cf42ff 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,8 @@
     "test:e2e": "playwright test",
     "build": "astro build",
     "preview": "astro preview",
-    "astro": "astro"
+    "astro": "astro",
+    "astro:check": "astro check"
   },
   "dependencies": {
     "@astrojs/mdx": "^8.0.2",
diff --git a/src/components/VerticalPipeline.astro b/src/components/VerticalPipeline.astro
index b063c87..715f1c3 100644
--- a/src/components/VerticalPipeline.astro
+++ b/src/components/VerticalPipeline.astro
@@ -14,7 +14,7 @@ const steps = [
   class="my-8 relative pl-6 before:absolute before:top-2 before:bottom-2 before:left-[11px] before:w-0.5 before:bg-slate-200"
 >
   {
-    steps.map((step, idx) => (
+    steps.map((step) => (
       <div class="relative mb-6 last:mb-0 group">
         {/* 타임라인 노드 포인트 */}
         <span class="absolute -left-[21px] top-1.5 flex h-4 w-4 items-center justify-center rounded-full bg-white border-2 border-slate-300 group-hover:border-slate-900 transition-colors">
diff --git a/src/content.config.ts b/src/content.config.ts
index a5ce50e..bedbcc9 100644
--- a/src/content.config.ts
+++ b/src/content.config.ts
@@ -6,7 +6,7 @@ const baseCollectionSchema = z.object({
   title: z.string(),
   description: z.string(),
   version: z.string(),
-  publishedAt: z.string().datetime(),
+  publishedAt: z.iso.datetime(),
 });
 
 export const collections = {
diff --git a/src/pages/index.astro b/src/pages/index.astro
index 53f120c..3a75373 100644
--- a/src/pages/index.astro
+++ b/src/pages/index.astro
@@ -1,6 +1,5 @@
 ---
 import HomeLayout from '../layouts/HomeLayout.astro';
-import heroBg from '../assets/hero-background.jpg';
 
 // 코어 워크플로 파이프라인 데이터
 const pipelineSteps = [