Use Any AI Agent in Visual Studio

More Choice. Zero Lock-in. The Journey Starts with Junie.

JetBrains is building an ecosystem where you control your AI experience. No vendor lock-in. No forced choices. Just the freedom to use the agents and models that work best for you.

This EAP preview introduces Junie, our first step toward full ACP (Agent Client Protocol) support in ReSharper inside Visual Studio.

Ready to break free from vendor lock-in?

Try Junie

1

Click below to download the EAP installer for ReSharper and the JetBrains AI Assistant plugin with Junie on board.

2

Help us break the lock-in. Take a survey to tell us which AI agents you want to use for which workflows, and influence the integration.

Take the Survey

What's Coming: the ACP Agent Registry

The ACP Agent Registry will transform ReSharper into an open AI ecosystem, ensuring you always have the right tool for the job. Soon you'll be able to:

Discover agents

Explore local, remote, and in-house agents

Set up easily

All agents connect through the same interface

Switch between agents

Choose the best ones for each task

Stay current

Get the latest models as they are released

Meet Junie — Your First Open System Agent

To make the "Any Agent" vision a reality, we first need to build a rock-solid, universal connection inside ReSharper. Junie is JetBrains’ own AI coding agent, and we are using it as the first proof-of-concept to test this new ACP integration. By trying Junie today, you’re helping us validate the foundation that will soon let you plug in the agent of your choice.

Try Junie

Downloads the ReSharper installer

Getting Started

Enabling Junie inside AI Assistant:

Clicking "Try Junie" from the promotional page inside ReSharper will open the AI Assistant tool window.

  • If you have a JetBrains AI subscription: You can proceed directly to the chat. Junie components will unpack on your first prompt.
  • If you do NOT have a subscription: A licensing dialog will appear with a "Start Trial" button. To start the free trial, you will need to accept the Terms & Conditions and provide bank card information (this is strictly a fraud prevention measure, your card will not be charged).

Switching models:

  1. Navigate to Extensions | ReSharper | Options | AI Assistant | Junie to select different model options.
  2. Click Save and the AI Chat will have the selected LLM model activated.

Troubleshooting:

If you have trouble launching the AI Chat tool window, please make sure you don’t have AI Assistant disabled in ReSharper. To check if that might be the culprit, go to Extensions | ReSharper | Options | AI Assistant | General and check the AI Assistant box.

Help Us Break the Lock-in

This preview is an experiment. We want to know if an open AI ecosystem in ReSharper is something you actually want.

Tell us what to build next:

Click "Share Feedback" in the AI Chat tool window to access our survey at any time.

Let us know how the integration feels, and more importantly, tell us exactly which AI agents you want to see in the Registry.

Your input will directly influence how we expand agent support in ReSharper.

Take the Survey