Jules

Jules is a cloud-based autonomous coding agent from Google. It connects to GitHub, works through a delegated backlog in isolated VMs, and reviews its own fixes by running tests and checking screenshots. CLI and API access are available.

Jules is an autonomous coding agent from Google that runs continuously in a secure cloud VM. Rather than acting as a chat assistant that answers one prompt at a time, it learns a connected codebase and acts on it, investigating issues, writing fixes, running tests and reviewing its own output while the developer is away from the keyboard. The workflow starts with a GitHub connection. Once repositories are imported, work is delegated through sessions: you can hand over a backlog item, define repeatable tasks, or let Jules proactively hunt for bugs and improvements in the code you have made available to it. Each task is executed in an isolated environment on Google's infrastructure, so fixes happen in the background instead of occupying a local machine. A built-in peer review pass has Jules run tests, inspect UI screenshots and critique its own work before the result comes back to you. Jules suits engineering teams and solo developers who already have a reasonably structured repository on GitHub and want routine maintenance, bug fixes and incremental improvements handled without constant supervision. It is less of a fit for people who want line-by-line pair programming inside the editor or who need to work outside GitHub. Compared with inline coding assistants, the emphasis here is on delegation and delegation at the session level rather than autocomplete in the file you have open. Beyond the web interface, Jules offers a CLI and an API, and an integrations settings page where services such as Render can be configured. A daily session limit governs usage, and the homepage does not publish tier details or prices, so cost planning has to come from the product itself. The usage guide is the recommended starting point for getting good results, since the agent inherits whatever context and repository access you grant it.