diff --git a/pyproject.toml b/pyproject.toml
index f367299..3850c00 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "mcphub"
-version = "0.1.10"
+version = "0.1.11"
 description = "A Python package for managing and integrating Model Context Protocol (MCP) servers with AI frameworks like OpenAI Agents, LangChain, and Autogen"
 readme = "README.md"
 authors = [
diff --git a/src/mcphub/mcp_servers/params.py b/src/mcphub/mcp_servers/params.py
index 663e98a..5783fb4 100644
--- a/src/mcphub/mcp_servers/params.py
+++ b/src/mcphub/mcp_servers/params.py
@@ -47,7 +47,7 @@ def _load_user_config(self) -> Dict:
         """Load user configuration from JSON file."""
         # If no config path is provided, return empty dict
         if not self.config_path:
-            return {}
+            raise ServerConfigNotFoundError("No configuration file path provided")
             
         try:
             with open(self.config_path, "r") as f:
@@ -188,8 +188,15 @@ def _load_servers_params(self) -> Dict[str, MCPServerConfig]:
                 )
             
             # Get command and args with defaults
-            command = server_config.get("command", "npx")
-            args = server_config.get("args", ["-y", package_name])
+            command = server_config.get("command", None)
+            args = server_config.get("args", None)
+            
+            # Skip if command or args is None
+            if command is None or args is None:
+                raise ValueError(
+                    f"Invalid server '{mcp_name}' configuration: command or args is None. "
+                    f"Command: {command}, Args: {args}"
+                )
                 
             servers[mcp_name] = MCPServerConfig(
                 package_name=package_name,