diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..90ee31a
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,19 @@
+name: Markdown Lint
+
+on:
+  pull_request:
+    branches: [dev]
+  push:
+    branches: [dev]
+
+jobs:
+  markdownlint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Run markdownlint
+        uses: DavidAnson/markdownlint-cli2-action@v16
+        with:
+          globs: |
+            **/*.md
diff --git a/.gitignore b/.gitignore
index cc76af5..eaea35c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,7 +9,6 @@ Thumbs.db
 *.swo
 
 # 빌드 결과물 및 바이너리 무시
-bin/
 build/
 dist/
 *.o
@@ -26,3 +25,5 @@ logs/
 tmp/
 temp/
 *.tmp
+
+.envrc
diff --git a/bin/project b/bin/project
new file mode 100755
index 0000000..8d747e2
--- /dev/null
+++ b/bin/project
@@ -0,0 +1,25 @@
+#!/bin/bash
+
+# Project Utility CLI
+# Usage: project <command>
+CTX=act
+
+if ! docker context inspect "$CTX" >/dev/null 2>&1; then
+  docker context create "$CTX"
+fi
+
+COMMAND=$1
+shift
+
+case "$COMMAND" in
+    ci)
+        echo "Simulating Dev CI (act)..."
+        docker context use "$CTX"
+        act pull_request -W .github/workflows/ci.yml --container-architecture linux/amd64
+        docker context use default
+        ;;
+    *)
+        echo "Usage: project {ci}"
+        exit 1
+        ;;
+esac