diff --git a/bin/commands/update.py b/bin/commands/update.py
index bc4eb06..c7cf08c 100644
--- a/bin/commands/update.py
+++ b/bin/commands/update.py
@@ -43,7 +43,9 @@ def update_cmd() -> None:
     if makefile.is_file():
         rc = _run_make_install(root)
         if rc != 0:
-            console.print("[yellow]make install failed, trying pip -e…[/yellow]")
+            console.print(
+                "[yellow]make install failed, trying pip -e…[/yellow]"
+            )
             rc = _run_pip_editable(root)
     else:
         rc = _run_pip_editable(root)
diff --git a/tests/test_cli.py b/tests/test_cli.py
index d5e2219..db26c1e 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -31,7 +31,10 @@ class TestCliHelp:
         runner = CliRunner()
         result = runner.invoke(cli, ["update", "--help"])
         assert result.exit_code == 0
-        assert "update" in result.output.lower() or "reinstall" in result.output.lower()
+        assert (
+            "update" in result.output.lower()
+            or "reinstall" in result.output.lower()
+        )
 
     def test_upgrade_alias_exists(self) -> None:
         """upgrade should be an alias for update."""
@@ -96,4 +99,3 @@ class TestCliDefaultBehavior:
             assert result.exit_code == 0
             call_args = mock_run.call_args[0][0]
             assert "--dangerously-skip-permissions" in call_args
-
diff --git a/tests/test_project_root.py b/tests/test_project_root.py
index e85ae17..78e7330 100644
--- a/tests/test_project_root.py
+++ b/tests/test_project_root.py
@@ -22,11 +22,16 @@ class TestGetMyclaudeProjectRoot:
 
     def test_fallback_when_not_in_repo(self) -> None:
         """When not in a repo, fallback to ~/.myclaude."""
-        with patch.dict(os.environ, {}, clear=True):
-            with patch("pathlib.Path.cwd", side_effect=OSError):
-                with patch("bin.project_root._pyproject_names_myclaude", return_value=False):
-                    result = get_myclaude_project_root()
-                    assert result == Path.home() / ".myclaude"
+        with (
+            patch.dict(os.environ, {}, clear=True),
+            patch("pathlib.Path.cwd", side_effect=OSError),
+            patch(
+                "bin.project_root._pyproject_names_myclaude",
+                return_value=False,
+            ),
+        ):
+            result = get_myclaude_project_root()
+            assert result == Path.home() / ".myclaude"
 
 
 class TestGetWorkspaceRoot:
@@ -59,22 +64,24 @@ class TestGetWorkspaceRoot:
         workspace.mkdir()
         (project_root / "pyproject.toml").write_text('name = "myclaude"\n')
 
-        with patch.dict(os.environ, {"MYCLAUDE_PROJECT_ROOT": str(project_root)}, clear=True):
+        with patch.dict(
+            os.environ, {"MYCLAUDE_PROJECT_ROOT": str(project_root)}, clear=True
+        ):
             result = get_workspace_root()
             assert result == workspace.resolve()
 
     def test_defaults_to_home_workspace(self, tmp_path: Path) -> None:
         """When no env var and no project workspace, default to ~/workspace."""
+        home = tmp_path / "home"
+        home.mkdir()
         with (
             patch.dict(os.environ, {}, clear=True),
-            patch("bin.project_root.get_myclaude_project_root", return_value=tmp_path / ".myclaude"),
-            patch.dict(os.environ, {}, clear=True),
+            patch(
+                "bin.project_root.get_myclaude_project_root",
+                return_value=tmp_path / ".myclaude",
+            ),
+            patch("pathlib.Path.home", return_value=home),
         ):
-            with patch.dict(os.environ, {}, clear=True):
-                # Ensure HOME is set for Path.home()
-                home = tmp_path / "home"
-                home.mkdir()
-                with patch("pathlib.Path.home", return_value=home):
-                    result = get_workspace_root()
-                    assert result == home / "workspace"
-                    assert result.is_dir()
+            result = get_workspace_root()
+            assert result == home / "workspace"
+            assert result.is_dir()