GCP MCP

Instructions

    List assets in a GCP project using Cloud Asset Inventory API.
    
    Args:
        project_id: The ID of the GCP project to list assets for
        asset_types: Optional list of asset types to filter by (e.g., ["compute.googleapis.com/Instance"])
        page_size: Number of assets to return per page (default: 50, max: 1000)
    
    Returns:
        List of assets in the specified GCP project
    

Implementation Reference

• src/gcp_mcp/gcp_modules/resource_management/tools.py:68-132 (handler)

  The handler function for the 'list_assets' tool. It uses the Google Cloud AssetServiceClient to list assets in a GCP project, supports filtering by asset types and pagination.

  @mcp.tool()
  def list_assets(project_id: str, asset_types: Optional[List[str]] = None, page_size: int = 50) -> str:
      """
      List assets in a GCP project using Cloud Asset Inventory API.
      
      Args:
          project_id: The ID of the GCP project to list assets for
          asset_types: Optional list of asset types to filter by (e.g., ["compute.googleapis.com/Instance"])
          page_size: Number of assets to return per page (default: 50, max: 1000)
      
      Returns:
          List of assets in the specified GCP project
      """
      try:
          try:
              from google.cloud import asset_v1
          except ImportError:
              return "Error: The Google Cloud Asset Inventory library is not installed. Please install it with 'pip install google-cloud-asset'."
          
          # Initialize the Asset client
          client = asset_v1.AssetServiceClient()
          
          # Format the parent resource
          parent = f"projects/{project_id}"
          
          # Create the request
          request = asset_v1.ListAssetsRequest(
              parent=parent,
              content_type=asset_v1.ContentType.RESOURCE,
              page_size=min(page_size, 1000)  # API limit is 1000
          )
          
          # Add asset types filter if provided
          if asset_types:
              request.asset_types = asset_types
          
          # List assets
          response = client.list_assets(request=request)
          
          # Format the response
          assets_list = []
          for asset in response:
              asset_type = asset.asset_type
              name = asset.name
              display_name = asset.display_name if hasattr(asset, 'display_name') and asset.display_name else name.split('/')[-1]
              
              # Extract location if available
              location = "global"
              if hasattr(asset.resource, 'location') and asset.resource.location:
                  location = asset.resource.location
              
              assets_list.append(f"- {display_name} ({asset_type})\n  Location: {location}\n  Name: {name}")
          
          if not assets_list:
              filter_msg = f" with types {asset_types}" if asset_types else ""
              return f"No assets found{filter_msg} in project {project_id}."
          
          # Add pagination info if there's a next page token
          pagination_info = ""
          if hasattr(response, 'next_page_token') and response.next_page_token:
              pagination_info = "\n\nMore assets are available. Refine your search or increase page_size to see more."
          
          return f"Assets in GCP Project {project_id}:\n\n" + "\n\n".join(assets_list) + pagination_info
      except Exception as e:
          return f"Error listing assets: {str(e)}"

• src/gcp_mcp/server.py:32-33 (registration)

  Registration of resource management tools, which includes the 'list_assets' tool, by calling register_tools on the imported module.

  # Register resource management tools
  resource_tools.register_tools(mcp)

• src/gcp_mcp/gcp_modules/resource_management/tools.py:6-7 (registration)

  The register_tools function in the resource_management module that defines and registers the 'list_assets' tool using @mcp.tool() decorator.

  def register_tools(mcp):
      """Register all resource management tools with the MCP server."""

• src/gcp_mcp/gcp_modules/resource_management/tools.py:69-80 (schema)

  Function signature and docstring defining the input schema (parameters) and output type for the 'list_assets' tool.

  def list_assets(project_id: str, asset_types: Optional[List[str]] = None, page_size: int = 50) -> str:
      """
      List assets in a GCP project using Cloud Asset Inventory API.
      
      Args:
          project_id: The ID of the GCP project to list assets for
          asset_types: Optional list of asset types to filter by (e.g., ["compute.googleapis.com/Instance"])
          page_size: Number of assets to return per page (default: 50, max: 1000)
      
      Returns:
          List of assets in the specified GCP project
      """