diff --git a/unsloth_cli/commands/start.py b/unsloth_cli/commands/start.py
index 919b4bf9d5..b99ad91dd0 100644
--- a/unsloth_cli/commands/start.py
+++ b/unsloth_cli/commands/start.py
@@ -1201,7 +1201,6 @@ def _require_studio(
 
 def _studio_auth_root() -> Path:
     from unsloth_cli.commands.studio import STUDIO_HOME
-
     return STUDIO_HOME / "auth"
 
 
@@ -2391,7 +2390,6 @@ def _managed_node_tools() -> Optional[tuple[Path, Path, bool]]:
     try:
         ensure_studio_backend_path()
         from utils.node_runtime import managed_node_binary, resolve_node_executable
-
         node = Path(managed_node_binary())
     except (ImportError, OSError, RuntimeError, TypeError, ValueError):
         return None
diff --git a/unsloth_cli/tests/test_start.py b/unsloth_cli/tests/test_start.py
index 30c43dbfd2..c904a997c3 100644
--- a/unsloth_cli/tests/test_start.py
+++ b/unsloth_cli/tests/test_start.py
@@ -181,7 +181,9 @@ def test_install_agent_windows_failure_hints_execution_policy(monkeypatch, capsy
     _simulate_windows(monkeypatch)
     monkeypatch.setattr(start.sys, "stdin", SimpleNamespace(isatty = lambda: True))
     monkeypatch.setattr(start.typer, "confirm", lambda *a, **k: True)
-    monkeypatch.setattr(start, "_npm_executable", lambda: r"C:\Users\me\AppData\Roaming\npm\npm.cmd")
+    monkeypatch.setattr(
+        start, "_npm_executable", lambda: r"C:\Users\me\AppData\Roaming\npm\npm.cmd"
+    )
     monkeypatch.setattr(
         start.subprocess,
         "run",
@@ -1223,7 +1225,9 @@ def test_missing_pi_subagent_extension_fails_before_install_or_connect(monkeypat
     monkeypatch.setattr(
         start,
         "_connect",
-        lambda *args, **kwargs: pytest.fail("local prerequisites must be checked before connection"),
+        lambda *args, **kwargs: pytest.fail(
+            "local prerequisites must be checked before connection"
+        ),
     )
 
     result = CliRunner().invoke(start.start_app, ["pi", "--as-subagent"])