Want a custom co-pilot that speaks your style and knows your tools?

🔑 Le Chat’s Agents are specialized assistants you can reuse across chats. You can pair them with tools and knowledge sources to extend their capabilities.

Let’s create your first Agent together.

Open the Agents page

Click Agents in the sidebar to open the Agents page.

Open the Agents page from the sidebar

Create a new Agent

Click Create an Agent (1) to open the Agent builder.

For this demo, let’s call it My Weather Assistant.

📌 Mistral AI also provides pre-built Agent templates (2) you can customize.

Create a new Agent (1) or start from a template (2)

Configure your Agent

You’ll configure three areas: Main settings, Additional settings, and Knowledge & Tools.

Main settings

Set the basics:

Name — e.g., My Weather Assistant
Short description (optional) — e.g., A friendly assistant that tells you the weather
Avatar (optional) — choose from the gallery or generate one
Core instructions — e.g., You are a friendly weather assistant. Be polite and concise.

💡 Need to reference tools or knowledge while writing instructions? Type / in the instructions field to insert Knowledge or Tools (see below 🔎).

Set name (1), description (2), avatar (3), and core instructions (4)

Choose an avatar from the picker or generate one

Additional settings

Add extra prompts to refine behavior:

Guardrails — boundaries for the Agent (e.g., always use Celsius for temperature)
Tone & Personality — expand Tone to adjust the style

Configure guardrails and tone/personality for your Agent

🔑 These settings are optional but help fine-tune how your Agent behaves.

Give your Agent knowledge & tools

Open Knowledge to add more capabilities.

Browsing the web — enable Web search (1).
Using Libraries — attach a Library, such as the weather data Library we created earlier (2).
Connectors — you can attach external services if needed (3).

Enable Tools (1), Libraries (2), and Connectors (3)

On the right, use the preview chat to test your Agent and refine instructions.

🔑 All changes are saved automatically. There’s no save button.

Chat with your Agent

You can now use your Agent in any conversation.

Type @ in the message box and select your Agent.

Select an Agent in a chat

Your Agent handles the chat from here.

What’s the weather in Paris in June?

Asking a question to the Agent

The Agent’s answer

Notice how the Agent uses Celsius and keeps a polite, concise tone, as instructed.

📌 To switch back to the default model, click the x at the top of the chat box.

Next steps

This wraps up your Getting Started series.

Want to go further? Explore more Agent articles 🔎 for advanced configurations, or head straight to our series conclusion.

🎓 Let’s recap what we’ve learned in our series conclusion.

Can Agents access my Connectors?

How do I chat with an Agent in le Chat?

What's an Agent and how do I create one?

What is le Chat and how does it work?

Create your first Library

Create your first Agent