@type t() :: %MCP.Protocol.Types.Prompt{
  arguments: [MCP.Protocol.Types.PromptArgument.t()] | nil,
  description: String.t() | nil,
  icons: [MCP.Protocol.Types.Icon.t()] | nil,
  meta: map() | nil,
  name: String.t(),
  title: String.t() | nil
}