Galtea’s Conversation Simulator allows you to test your conversational AI products by simulating realistic user interactions. The recommended way to integrate your AI is via the Agent interface and the simulation agent wrapper. This guide walks you through implementing your agent, configuring scenarios, and running a complete simulation.

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Agent-Based Conversation Simulation Workflow

1

1. Implement Your Agent

Extend the abstract Agent class with your conversational AI logic. Your agent receives the full conversation state and must return a response for each turn.
2

2. Prepare Scenario Data

Create a CSV file with scenario data. Each row is a test case describing the user goal, persona, and initial prompt.
3

3. Create a Test and Sessions

Upload your scenario CSV to create a test. The platform generates a session for each scenario.
4

4. Run the Simulator with Your Agent

Use SimulatorService.simulate() to execute the conversation between your agent and the synthetic user, for each session.
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5. Evaluate the Results

After simulation, analyze results and optionally trigger evaluations via evaluation_tasks.create().

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Example: Agent-Based Simulation Workflow

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1. Implement Your Agent

Create a Python class that extends galtea.Agent. Your agent should implement the call method, which receives an AgentInput (including conversation history and context) and returns an AgentResponse. 
import galtea

class MyAgent(galtea.Agent):
    def __init__(self):
        # Initialize your model here (e.g., load LLM or service)
        self.model = YourModel()

    def call(self, input_data: galtea.AgentInput) -> galtea.AgentResponse:
        # Access the latest user message
        user_message = input_data.last_user_message_str()

        # Get the retrieval context if needed
        retrieval_context = generate_retrieval_context(input_data.retrieval_context)

        # Generate a response using your own logic/model
        response = self.model.generate_response(user_message, retrieval_context)

        # Return a structured response (optionally with metadata)
        return galtea.AgentResponse(
            content=response,
            retrieval_context=retrieval_context,
            metadata={"model_version": "1.0"}
        )

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2. Prepare Your CSV File

Create a CSV file (e.g., conversation_scenarios.csv) with your scenario data: 
goal,user_persona,initial_prompt,stopping_criterias,max_iterations,scenario
"Book a one-way flight from SFO to JFK for next Tuesday","A busy professional who is direct and values efficiency","I need to book a flight","The user has confirmed the flight booking|The chatbot indicates it cannot fulfill the request",10,"Flight booking scenario"
"Cancel an existing reservation","An upset customer who is frustrated with service","I want to cancel my reservation immediately","The reservation is successfully cancelled;The customer is transferred to a supervisor",8,"Cancellation scenario"
See Scenarios Tests for more details.

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3. Create a Test and Sessions

galtea_client = galtea.Galtea(api_key="YOUR_API_KEY")
test = galtea_client.tests.create(
    version_id="your_version_id",
    name="Conversation Simulation Test",
    type="SCENARIOS",
    test_file_path="conversation_scenarios.csv"
)
test_cases = galtea_client.test_cases.list(test_id=test.id)

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4. Run the Conversation Simulator

For each test case/session, use the simulator wrapper to run the full simulation with your agent: 
# Create your agent instance
agent = MyAgent()

for test_case in test_cases:
    # Create a session for this test case
    session = galtea_client.sessions.create(
        version_id="your_version_id",
        test_case_id=test_case.id
    )

    # Run the simulation
    result = galtea_client.simulator.simulate(
        session_id=session.id,
        agent=agent,
        max_turns=test_case.max_iterations or 20
    )

    # Review results
    print(f"Completed {result.total_turns} turns. Finished: {result.finished}")
    if result.stopping_reason:
        print(f"Stopping reason: {result.stopping_reason}")

    # Print conversation history
    for i, message in enumerate(result.messages):
        role = "User" if message.role == "user" else "Agent"
        print(f"{i+1}. {role}: {message.content}")
        if message.metadata:
            print(f"   Metadata: {message.metadata}")

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5. Evaluate the Session

evaluation_task = galtea_client.evaluation_tasks.create(
    session_id=session.id,
    metrics=["Factual Accuracy", "coherence"],  # Replace with your metrics
)
print(f"Evaluation task created: {evaluation_task.id}")
By using the agent wrapper and simulation method, you can quickly evaluate your conversational AI models in realistic, repeatable conditions, leveraging Galtea’s powerful simulation and analytics tools.