MCP Server for Apache OpenDAL™

Instructions

Get metadata of file in OpenDAL service

Args:
    uri: resource URI, e.g. mys3://path/to/file

Returns:
    File metadata information

Implementation Reference

• src/mcp_server_opendal/server.py:134-158 (handler)

  The get_info tool handler: retrieves file metadata (size, type) from OpenDAL storage using the provided URI. Registered via @mcp.tool() decorator.

  @mcp.tool()
  async def get_info(uri: str) -> str:
      """
      Get metadata of file in OpenDAL service
  
      Args:
          uri: resource URI, e.g. mys3://path/to/file
  
      Returns:
          File metadata information
      """
      logger.debug(f"Getting file info: {uri}")
      try:
          resource, path = parse_uri(uri)
          metadata = await resource.stat(path)
  
          result = f"File: {path}\n"
          result += f"Size: {metadata.content_length} bytes\n"
          result += f"Type: {metadata.content_type}\n"
  
          return result
      except Exception as e:
          logger.error(f"Failed to get file info: {e!s}")
          return f"Error: {e!s}"