diff --git a/src/rosmac/assets/presets/nav2-diffbot/nav2-diffbot.launch.py b/src/rosmac/assets/presets/nav2-diffbot/nav2-diffbot.launch.py
index 969bbef..40bd8e5 100644
--- a/src/rosmac/assets/presets/nav2-diffbot/nav2-diffbot.launch.py
+++ b/src/rosmac/assets/presets/nav2-diffbot/nav2-diffbot.launch.py
@@ -32,9 +32,7 @@ def generate_launch_description():
     pkg_nav2 = get_package_share_directory("nav2_bringup")
 
     gz_sim = IncludeLaunchDescription(
-        PythonLaunchDescriptionSource(
-            os.path.join(pkg_ros_gz_sim, "launch", "gz_sim.launch.py")
-        ),
+        PythonLaunchDescriptionSource(os.path.join(pkg_ros_gz_sim, "launch", "gz_sim.launch.py")),
         launch_arguments={"gz_args": f"-s --headless-rendering -r {WORLD}"}.items(),
     )
 
@@ -54,9 +52,7 @@ def generate_launch_description():
             ("/model/vehicle_blue/odometry", "/odom"),
             ("/model/vehicle_blue/tf", "/tf"),
         ],
-        parameters=[
-            {"qos_overrides./model/vehicle_blue.subscriber.reliability": "reliable"}
-        ],
+        parameters=[{"qos_overrides./model/vehicle_blue.subscriber.reliability": "reliable"}],
         output="screen",
     )
 
@@ -64,16 +60,20 @@ def generate_launch_description():
         package="tf2_ros",
         executable="static_transform_publisher",
         arguments=[
-            "--x", "0.648573", "--z", "0.675",
-            "--frame-id", "base_link", "--child-frame-id", "lidar_link",
+            "--x",
+            "0.648573",
+            "--z",
+            "0.675",
+            "--frame-id",
+            "base_link",
+            "--child-frame-id",
+            "lidar_link",
         ],
         parameters=[{"use_sim_time": True}],
     )
 
     slam = IncludeLaunchDescription(
-        PythonLaunchDescriptionSource(
-            os.path.join(pkg_slam, "launch", "online_async_launch.py")
-        ),
+        PythonLaunchDescriptionSource(os.path.join(pkg_slam, "launch", "online_async_launch.py")),
         launch_arguments={
             "use_sim_time": "true",
             "slam_params_file": SLAM_PARAMS,
@@ -81,9 +81,7 @@ def generate_launch_description():
     )
 
     nav2 = IncludeLaunchDescription(
-        PythonLaunchDescriptionSource(
-            os.path.join(pkg_nav2, "launch", "navigation_launch.py")
-        ),
+        PythonLaunchDescriptionSource(os.path.join(pkg_nav2, "launch", "navigation_launch.py")),
         launch_arguments={"use_sim_time": "true"}.items(),
     )
 
diff --git a/src/rosmac/cli.py b/src/rosmac/cli.py
index d6fcb17..bdea4ae 100644
--- a/src/rosmac/cli.py
+++ b/src/rosmac/cli.py
@@ -197,7 +197,9 @@ def _start_viz(cfg: Config) -> None:
 
 @app.command()
 def viz(
-    layout: str | None = typer.Option(None, "--layout", help="Preset layout name (panda|diffbot|nav2)"),
+    layout: str | None = typer.Option(
+        None, "--layout", help="Preset layout name (panda|diffbot|nav2)"
+    ),
 ) -> None:
     """Connect Foxglove visualization (start VM foxglove_bridge + open app)."""
     cfg = load()
diff --git a/tests/unit/test_deps.py b/tests/unit/test_deps.py
index 9dfffad..c1b6f22 100644
--- a/tests/unit/test_deps.py
+++ b/tests/unit/test_deps.py
@@ -27,7 +27,9 @@ def test_ensure_installed_only_missing(monkeypatch) -> None:
     cfg = Config()
     monkeypatch.setattr(deps, "installed_packages", lambda _cfg: {"ros-humble-nav2-msgs"})
     called: list[list[str]] = []
-    monkeypatch.setattr(deps, "install_missing", lambda _cfg, pkgs, timeout=1800: called.append(pkgs))
+    monkeypatch.setattr(
+        deps, "install_missing", lambda _cfg, pkgs, timeout=1800: called.append(pkgs)
+    )
     # 이미 있는 것 + 없는 것 → 없는 것만 설치, 반환
     out = deps.ensure_installed(cfg, ["ros-humble-nav2-msgs", "ros-humble-moveit-msgs"])
     assert out == ["ros-humble-moveit-msgs"]
@@ -38,7 +40,9 @@ def test_ensure_installed_noop_when_all_present(monkeypatch) -> None:
     cfg = Config()
     monkeypatch.setattr(deps, "installed_packages", lambda _cfg: {"ros-humble-nav2-msgs"})
     called: list[list[str]] = []
-    monkeypatch.setattr(deps, "install_missing", lambda _cfg, pkgs, timeout=1800: called.append(pkgs))
+    monkeypatch.setattr(
+        deps, "install_missing", lambda _cfg, pkgs, timeout=1800: called.append(pkgs)
+    )
     assert deps.ensure_installed(cfg, ["ros-humble-nav2-msgs"]) == []
     assert deps.ensure_installed(cfg, []) == []
     assert called == []  # 전부 있으면 micromamba install 호출 안 함 (멱등)