What happens when you run several Copilot agents at once?

Agent sessions and the sessions view

An agent session is a task you have given Copilot from start to finish. In the GitHub Copilot app you manage several sessions through the sessions view. Each card shows its title and how far along the agent is in completing its task. Each session runs independently of the others. They just work. That means you can start a new session whenever you want and the ones already running will not be disturbed.

You spend your time reviewing and making decisions rather than watching your agents at work. Plus each session keeps its own context so you can switch between them freely. Each picks up exactly where you left it and you never have to re-explain what you were doing. Less context switching means you feel less scattered.

Git worktrees keep each task separate

Here is where the real magic happens. Each agent session in the GitHub Copilot app can run on its own Git worktree. Since each session is isolated they can run in parallel all at the same time. Think of parallel agent sessions like a trip to the laundromat. You can start multiple loads of laundry at the same time in their own machines. You can set each washer with its own settings and it will not impact the other loads. Most importantly you do not have to wait for one to finish before you can start another one.

A concrete example with tailspin-toys

Let us look at an example repository called tailspin-toys. There are three things the author wanted to do to this project today. Add funded sort. Perform an accessibility review. Run some tests on this project. The first step is to ask Copilot to build the funded sort feature. Just as it gets started open a new session and ask Copilot to perform an accessibility review. As that gets under way start prompting Copilot to run some tests in a third session. In the session view you can keep track of all of these as they progress and review the results as they finish. Or you can step away entirely grab a cup of coffee and know your work is happening without you babysitting it.

Starting your first parallel run

Ready to feel the power of parallel agent sessions? Try starting two small tasks at the same time in the GitHub Copilot app. It is a low-stakes way to watch your tasks progress independently. The post was published on September 3 2026 and takes about three minutes to read. Kayla Cinnamon wrote it as a senior AI developer tools advocate.