diff --git a/src/mockapi/core/validator.py b/src/mockapi/core/validator.py
index 8f4d6e9..cf22cc2 100644
--- a/src/mockapi/core/validator.py
+++ b/src/mockapi/core/validator.py
@@ -10,20 +10,12 @@ class OpenAPIValidator:
     """Validates OpenAPI 3.x specifications."""
 
     def __init__(self, spec: Dict[str, Any]):
-        """Initialize the validator.
-
-        Args:
-            spec: The OpenAPI specification dictionary
-        """
+        """Initialize the validator."""
         self.spec = spec
         self._validation_errors: List[str] = []
 
     def validate(self) -> List[str]:
-        """Validate the OpenAPI specification.
-
-        Returns:
-            List of validation error messages (empty if valid)
-        """
+        """Validate the OpenAPI specification."""
         self._validation_errors = []
 
         try:
@@ -48,49 +40,23 @@ class OpenAPIValidator:
         return str(error)
 
     def is_valid(self) -> bool:
-        """Check if the specification is valid.
-
-        Returns:
-            True if valid, False otherwise
-        """
+        """Check if the specification is valid."""
         return len(self.validate()) == 0
 
     def get_paths(self) -> List[str]:
-        """Get list of paths in the spec.
-
-        Returns:
-            List of path strings
-        """
+        """Get list of paths in the spec."""
         return list(self.spec.get("paths", {}).keys())
 
     def get_operations(self, path: str) -> Dict[str, Any]:
-        """Get all operations for a given path.
-
-        Args:
-            path: The path to get operations for
-
-        Returns:
-            Dictionary of method -> operation
-        """
+        """Get all operations for a given path."""
         path_item = self.spec.get("paths", {}).get(path, {})
         methods = ["get", "post", "put", "delete", "patch", "options", "head", "trace"]
         return {m: path_item[m] for m in methods if m in path_item}
 
     def get_schema(self, schema_name: str) -> Optional[Dict[str, Any]]:
-        """Get a schema by name from components/schemas.
-
-        Args:
-            schema_name: Name of the schema
-
-        Returns:
-            Schema definition or None if not found
-        """
+        """Get a schema by name from components/schemas."""
         return self.spec.get("components", {}).get("schemas", {}).get(schema_name)
 
     def get_all_schemas(self) -> Dict[str, Any]:
-        """Get all schemas from the spec.
-
-        Returns:
-            Dictionary of schema name -> schema definition
-        """
-        return self.spec.get("components", {}).get("schemas", {})
\ No newline at end of file
+        """Get all schemas from the spec."""
+        return self.spec.get("components", {}).get("schemas", {})