diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index a468e7d..77b5b74 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -15,7 +15,13 @@
 	"postCreateCommand": "curl -L https://fly.io/install.sh | sh && echo 'export FLYCTL_INSTALL=\"/home/vscode/.fly\"' >> ~/.bashrc && echo 'export PATH=\"$FLYCTL_INSTALL/bin:$PATH\"' >> ~/.bashrc",
 
 	// Configure tool-specific properties.
-	// "customizations": {},
+	"customizations": {
+		"vscode": {
+			"extensions": [
+				"Anthropic.claude-code"
+			]
+		}
+	},
 
 	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
 	// "remoteUser": "root"
diff --git a/.github/workflows/fly-deploy.yml b/.github/workflows/fly-deploy.yml
index 4c809b4..9b7856a 100644
--- a/.github/workflows/fly-deploy.yml
+++ b/.github/workflows/fly-deploy.yml
@@ -13,6 +13,6 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: superfly/flyctl-actions/setup-flyctl@master
-      - run: fly deploy
+      - run: flyctl deploy
         env:
           FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 474ead2..3031733 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -19,5 +19,9 @@ jobs:
       - uses: actions/setup-go@v6
         with:
           go-version: stable
-      - name: Run make check (fmt-check and lint)
-        run: make check
\ No newline at end of file
+      - name: Run format check
+        run: make fmt-check
+      - name: Run golangci-lint
+        uses: golangci/golangci-lint-action@v8
+        with:
+          version: latest
\ No newline at end of file
diff --git a/Makefile b/Makefile
index 2752967..171d6fd 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-.PHONY: help fmt fmt-check lint check fix run build build-prod test clean docker-build
+.PHONY: help fmt fmt-check lint run build build-prod test clean docker-build
 
 # デフォルトターゲット
 help:
@@ -13,7 +13,6 @@ help:
 	@echo "  make fmt          - コードフォーマット (自動修正)"
 	@echo "  make fmt-check    - フォーマットチェック (修正しない)"
 	@echo "  make lint         - 静的解析 (golangci-lint)"
-	@echo "  make check        - フォーマット + 静的解析 (修正しない、CI用)"
 	@echo ""
 	@echo "  [本番用]"
 	@echo "  make build-prod   - 本番用バイナリをビルド (最適化、デバッグ情報なし)"
@@ -50,10 +49,6 @@ lint:
 	golangci-lint run ./...
 	@echo "静的解析完了"
 
-# チェック専用 (修正しない、CI用)
-check: fmt-check lint
-	@echo "すべてのチェックが完了しました"
-
 # アプリケーションを実行
 run:
 	@echo "アプリケーションを起動中..."