diff --git a/cli/planoai/config_generator.py b/cli/planoai/config_generator.py
index c1210e6d..95f2abd5 100644
--- a/cli/planoai/config_generator.py
+++ b/cli/planoai/config_generator.py
@@ -8,7 +8,6 @@ from urllib.parse import urlparse
 from copy import deepcopy
 from planoai.consts import DEFAULT_OTEL_TRACING_GRPC_ENDPOINT
 
-
 SUPPORTED_PROVIDERS_WITH_BASE_URL = [
     "azure_openai",
     "ollama",
@@ -504,7 +503,9 @@ def validate_prompt_config(plano_config_file, plano_config_schema_file):
     try:
         validate(config_yaml, config_schema_yaml)
     except ValidationError as e:
-        path = " → ".join(str(p) for p in e.absolute_path) if e.absolute_path else "root"
+        path = (
+            " → ".join(str(p) for p in e.absolute_path) if e.absolute_path else "root"
+        )
         raise ValidationError(
             f"{e.message}\n  Location: {path}\n  Value: {e.instance}"
         ) from None
diff --git a/cli/planoai/native_runner.py b/cli/planoai/native_runner.py
index 39849451..ed44e8ad 100644
--- a/cli/planoai/native_runner.py
+++ b/cli/planoai/native_runner.py
@@ -429,9 +429,7 @@ def native_validate_config(plano_config_file):
             # validate_and_render_schema calls exit(1) on failure after
             # printing to stdout; re-raise so the caller gets a useful message.
             output = captured.getvalue().strip()
-            raise Exception(output) if output else Exception(
-                "Config validation failed"
-            )
+            raise Exception(output) if output else Exception("Config validation failed")
 
 
 def native_logs(debug=False, follow=False):