How do parallel agent sessions work?

Each agent session runs independently and can run on its own Git worktree. This isolation lets them run in parallel without affecting each other.

What are the benefits of running agents in parallel?

You can start new tasks while others are running, so you don't have to wait. Each session also keeps its own context, allowing you to switch between tasks freely without re-explaining.

What's a suggested way to get started?

Try starting two small tasks at the same time to see how they progress independently.

Large Language ModelsAI Coding AssistantsGitHub Blog (AI)Sep 3, 2026Sep 4, 2026, 01:00 JST

GitHub Copilot app Runs Multiple AI Agents in Parallel

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3 Key Points

What happened
GitHub Copilot app now lets developers run multiple agent sessions at once on the same project. Each session works independently and can run on its own Git worktree, so tasks don't interfere with each other.
Why it matters
This parallel setup means you can start new tasks while others are still running. You spend time reviewing results instead of waiting for one job to finish, and each session keeps its own context so you can switch between tasks without re-explaining.
What to watch
A blog post suggests trying two small tasks at the same time as a low-stakes way to see tasks progress independently. The post describes an example with three tasks: building a funded sort feature, performing an accessibility review, and running tests.

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Context & Analysis

This feature addresses the bottleneck of managing multiple AI coding tasks sequentially. Previously, a developer might have to wait for one agent task to finish before starting the next, or risk them conflicting on the same code. By isolating each session on its own Git worktree, GitHub enables true parallelism.

The practical benefit is in the workflow. Instead of watching agents work, the developer's role shifts to reviewing completed results and making decisions. The user interface, with a sessions view showing the title and progress of each card, is designed to manage this concurrent workflow.

The example in the post—adding a funded sort feature, performing an accessibility review, and running tests—shows concurrent tasks of different types. The post frames the experience as less chaotic than it sounds, comparing agents to separate washing machines that run at their own settings.

FAQ

How do parallel agent sessions work?: Each agent session runs independently and can run on its own Git worktree. This isolation lets them run in parallel without affecting each other.
What are the benefits of running agents in parallel?: You can start new tasks while others are running, so you don't have to wait. Each session also keeps its own context, allowing you to switch between tasks freely without re-explaining.
What's a suggested way to get started?: Try starting two small tasks at the same time to see how they progress independently.

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