GptAgent is a GenServer

lib/gpt_agent.ex

@@ -1,18 +1,15 @@
 defmodule GptAgent do
   @moduledoc """
-  Documentation for `GptAgent`.
+  Provides a GPT conversation agent
   """
 
-  @doc """
-  Hello world.
+  use GenServer
 
-  ## Examples
-
-      iex> GptAgent.hello()
-      :world
+  def init(init_arg) do
+    {:ok, init_arg}
+  end
 
-  """
-  def hello do
-    :world
+  def start_link do
+    GenServer.start_link(__MODULE__, nil)
   end
 end

test/gpt_agent_test.exs

@@ -2,7 +2,10 @@ defmodule GptAgentTest do
   use ExUnit.Case
   doctest GptAgent
 
-  test "greets the world" do
-    assert GptAgent.hello() == :world
+  describe "start_link/0" do
+    test "starts the agent" do
+      assert {:ok, pid} = GptAgent.start_link()
+      assert Process.alive?(pid)
+    end
   end
 end