Jules is Google's coding agent: it works on code in your GitHub repositories in the background, fixing bugs, writing tests and building features.
In plain words
You connect Jules to your GitHub repositories and describe a task. It copies your code into a virtual machine in Google Cloud and draws up a plan. It shows you that plan and its reasoning before changing anything, and you can adjust the plan at any stage. When it is done, it shows exactly what it changed. Because it works asynchronously, you can do other things meanwhile. Google says it does not train on your private code.
A quick example
Imagine you ask Jules to move a project to a newer version of a library it depends on. It proposes a plan, you approve it, and it edits the files in its own machine while you work on something else. Later you review the changes it made.
Where you'll meet it
- Writing tests and fixing bugs in existing projects.
- Updating dependency versions.
Related
Sources
- DocsJules: Google's autonomous AI coding agent, Google Blog · read 29 Sept 2026
- DocsJules is now available, Google Blog · read 29 Sept 2026
Checked by WhatIsAI against the sources above · 29 Sept 2026. Spotted an error? Report it.