diff --git a/synapseclient/models/agent.py b/synapseclient/models/agent.py
index 8a74a3d61..be5cf2f75 100644
--- a/synapseclient/models/agent.py
+++ b/synapseclient/models/agent.py
@@ -320,6 +320,7 @@ async def prompt_async(
         synapse_client: Optional[Synapse] = None,
     ) -> None:
         """Sends a prompt to the agent and adds the response to the AgentSession's chat history.
+        A session must be started before sending a prompt.
 
         Arguments:
             prompt: The prompt to send to the agent.
@@ -368,7 +369,7 @@ class Agent(AgentSynchronousProtocol):
         syn = Synapse()
         syn.login()
 
-        my_agent = Agent().start_session(synapse_client=syn)
+        my_agent = Agent()
         my_agent.prompt(
             prompt="Can you tell me about the AD Knowledge Portal dataset?",
             enable_trace=True,
diff --git a/tests/integration/synapseclient/models/synchronous/test_agent.py b/tests/integration/synapseclient/models/synchronous/test_agent.py
index c3391b098..bce7b3fe6 100644
--- a/tests/integration/synapseclient/models/synchronous/test_agent.py
+++ b/tests/integration/synapseclient/models/synchronous/test_agent.py
@@ -5,8 +5,8 @@
 from synapseclient import Synapse
 from synapseclient.models.agent import Agent, AgentSession, AgentSessionAccessLevel
 
-AGENT_AWS_ID = "QOTV3KQM1X"
-AGENT_REGISTRATION_ID = "29"
+CLOUD_AGENT_ID = "QOTV3KQM1X"
+AGENT_REGISTRATION_ID = 29
 
 
 class TestAgentSession:
@@ -32,7 +32,7 @@ def test_start(self) -> None:
         assert result_session.started_on is not None
         assert result_session.started_by is not None
         assert result_session.modified_on is not None
-        assert result_session.agent_registration_id == AGENT_REGISTRATION_ID
+        assert result_session.agent_registration_id == str(AGENT_REGISTRATION_ID)
         assert result_session.etag is not None
         assert result_session.chat_history == []
 
@@ -98,7 +98,7 @@ def init(self, syn: Synapse) -> None:
 
     def test_register(self) -> None:
         # GIVEN an Agent with a valid agent AWS id
-        agent = Agent(cloud_agent_id=AGENT_AWS_ID)
+        agent = Agent(cloud_agent_id=CLOUD_AGENT_ID)
         # WHEN I register the agent
         agent.register(synapse_client=self.syn)
         # THEN I expect the agent to be registered