Fix BaseService constructor inheritance and MCP server initialization

- Fix service constructors to properly call BaseService with required name parameter
- Fix AuthService, UserService, and SettingsService constructor signatures
- Add missing ServerCapabilities to MCP server initialization
- Create main_sync() wrapper function for script entry point compatibility
- Update pyproject.toml to use synchronous entry point for uvx/pip execution

Resolves BaseService.__init__() missing required positional argument error
All execution methods now work correctly: npx, uvx, pip, python -m

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

pyproject.toml

@@ -55,7 +55,7 @@ Repository = "https://github.com/portainer/portainer-mcp-core"
 Issues = "https://github.com/portainer/portainer-mcp-core/issues"
 
 [project.scripts]
-portainer-core-mcp = "portainer_core.server:main"
+portainer-core-mcp = "portainer_core.server:main_sync"
 
 [tool.setuptools.packages.find]
 where = ["src"]

src/portainer_core/server.py

@@ -17,6 +17,9 @@ from mcp.types import (
     TextContent,
     ImageContent,
     EmbeddedResource,
+    ServerCapabilities,
+    ResourcesCapability,
+    ToolsCapability,
 )
 
 from .config import get_global_config, get_global_server_config
@@ -1148,6 +1151,15 @@ class PortainerCoreMCPServer:
                     InitializationOptions(
                         server_name=server_config.server_name,
                         server_version=server_config.version,
+                        capabilities=ServerCapabilities(
+                            resources=ResourcesCapability(
+                                subscribe=True,
+                                list_changed=True,
+                            ),
+                            tools=ToolsCapability(
+                                list_changed=True,
+                            ),
+                        ),
                     )
                 )
         except Exception as e:
@@ -1260,5 +1272,15 @@ async def main() -> None:
         raise
 
 
+def main_sync() -> None:
+    """
+    Synchronous entry point for the server.
+    
+    This function is used by the script entry point in pyproject.toml.
+    It wraps the async main() function with asyncio.run().
+    """
+    asyncio.run(main())
+
+
 if __name__ == "__main__":
-    asyncio.run(main())
+    main_sync()

src/portainer_core/services/auth.py

@@ -23,8 +23,8 @@ from ..utils.logging import get_logger
 class AuthService(BaseService):
     """Service for authentication operations."""
     
-    def __init__(self, *args, **kwargs):
-        super().__init__(*args, **kwargs)
+    def __init__(self):
+        super().__init__("auth")
         self.logger = get_logger(__name__)
         self._cached_token = None
         self._token_expires_at = None

src/portainer_core/services/settings.py

@@ -19,8 +19,8 @@ from ..utils.logging import get_logger
 class SettingsService(BaseService):
     """Service for settings management operations."""
     
-    def __init__(self, *args, **kwargs):
-        super().__init__(*args, **kwargs)
+    def __init__(self):
+        super().__init__("settings")
         self.logger = get_logger(__name__)
     
     async def get_settings(self) -> SettingsResponse:

src/portainer_core/services/users.py

@@ -25,8 +25,8 @@ from ..utils.logging import get_logger
 class UserService(BaseService):
     """Service for user management operations."""
     
-    def __init__(self, *args, **kwargs):
-        super().__init__(*args, **kwargs)
+    def __init__(self):
+        super().__init__("users")
         self.logger = get_logger(__name__)
     
     async def list_users(self) -> List[UserResponse]: