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GitHub Copilot for JetBrains: Fix Diagnostics with Inline Chat

GitHub CopilotView original changelog

GitHub added a Fix action to the diagnostic intention menus in GitHub Copilot for JetBrains. Selecting it opens inline chat and asks Copilot to repair the flagged problem. GitHub Copilot uses agent mode when it is available and falls back to ask mode otherwise.

Key Takeaways

  • A new Fix action now appears in diagnostic intention menus in GitHub Copilot for JetBrains.
  • Selecting Fix opens inline chat and asks Copilot to repair the flagged problem.
  • Copilot uses agent mode when available, so the repair can be handled more autonomously.
  • When agent mode is not available, the action falls back to ask mode, so it works in either setup.
  • The action removes the copy-and-paste step of moving an error message into a separate chat window.
  • The update requires JetBrains IDE 2025.2 or later, because support for 2025.1 has ended.

A Faster Path from Warning to Fix

GitHub added a new Fix action to the diagnostic intention menus in GitHub Copilot for JetBrains. When the IDE flags a problem in the editor, developers can now choose Fix from the same intention menu they already use for quick actions. The action opens inline chat and asks Copilot to repair the problem, so there is no need to copy an error message into a separate chat panel and describe the issue by hand.

How the Fix Action Behaves

The action adapts to the chat mode available in the user's setup. GitHub Copilot uses agent mode when it is available, which lets Copilot work on the problem more autonomously. When agent mode is not available, the action falls back to ask mode, so the Fix action stays usable either way.

Why It Matters

Diagnostics are among the most frequent interruptions in an IDE session. Placing a Copilot-powered repair directly in the intention menu shortens the loop between seeing a warning or error and getting a proposed fix. Because the request starts from the diagnostic itself, developers do not have to re-explain the context to Copilot.

Availability

The Fix action shipped in the October 10, 2026 update to GitHub Copilot for JetBrains. That update also added other chat and account improvements, which this entry does not cover. GitHub also ended support for JetBrains IDE 2025.1 in the same release, so JetBrains IDE 2025.2 or later is required. GitHub invites feedback through the in-product options and the GitHub Copilot for JetBrains IDEs issues repository.