Skip to content

your-first-agent.md

Latest commit

 

History

History
105 lines (76 loc) · 3.37 KB

your-first-agent.md

File metadata and controls

105 lines (76 loc) · 3.37 KB
title Step 1: Your First Agent
description Create and run your first AI agent with Agent Framework in under 5 minutes.
zone_pivot_groups programming-languages
author eavanvalkenburg
ms.topic tutorial
ms.author edvan
ms.date 02/09/2026
ms.service agent-framework

Step 1: Your First Agent

Create an agent and get a response — in just a few lines of code.

:::zone pivot="programming-language-csharp"

dotnet add package Azure.AI.Projects --prerelease
dotnet add package Azure.Identity
dotnet add package Microsoft.Agents.AI.Foundry --prerelease

Create the agent:

using System;
using Azure.AI.Projects;
using Azure.Identity;
using Microsoft.Agents.AI;

var endpoint = Environment.GetEnvironmentVariable("AZURE_OPENAI_ENDPOINT")
    ?? throw new InvalidOperationException("Set AZURE_OPENAI_ENDPOINT");
var deploymentName = Environment.GetEnvironmentVariable("AZURE_OPENAI_DEPLOYMENT_NAME") ?? "gpt-4o-mini";

AIAgent agent = new AIProjectClient(new Uri(endpoint), new DefaultAzureCredential())
    .AsAIAgent(
        model: deploymentName,
        instructions: "You are a friendly assistant. Keep your answers brief.",
        name: "HelloAgent");

Warning

DefaultAzureCredential is convenient for development but requires careful consideration in production. In production, consider using a specific credential (e.g., ManagedIdentityCredential) to avoid latency issues, unintended credential probing, and potential security risks from fallback mechanisms.

Run it:

Console.WriteLine(await agent.RunAsync("What is the largest city in France?"));

Or stream the response:

await foreach (var update in agent.RunStreamingAsync("Tell me a one-sentence fun fact."))
{
    Console.Write(update);
}

Tip

See here for a full runnable sample application.

:::zone-end

:::zone pivot="programming-language-python"

pip install agent-framework

Create and run an agent:

:::code language="python" source="~/../agent-framework-code/python/samples/01-get-started/01_hello_agent.py" id="create_agent" highlight="8-11":::

:::code language="python" source="~/../agent-framework-code/python/samples/01-get-started/01_hello_agent.py" id="run_agent" highlight="2":::

Or stream the response:

:::code language="python" source="~/../agent-framework-code/python/samples/01-get-started/01_hello_agent.py" id="run_agent_streaming" highlight="3-5":::

Note

Agent Framework does not automatically load .env files. To use a .env file for configuration, call load_dotenv() at the start of your script:

from dotenv import load_dotenv
load_dotenv()

Alternatively, set environment variables directly in your shell or IDE. See the settings migration note for details.

Tip

See the full sample for the complete runnable file.

:::zone-end

Next steps

[!div class="nextstepaction"] Step 2: Add Tools

Go deeper: