overview
What is Jules?
Jules is an autonomous AI coding agent tool developed by Google that enables developers to automate complex software development tasks asynchronously. It operates by cloning a codebase into a secure virtual machine, generating a detailed plan, executing changes, and creating pull requests for review. Introduced in Google Labs in December 2025 and launched into public beta in May 2025, Jules aims to streamline the development workflow by handling tasks such as bug fixing, test generation, and feature building. The agent leverages advanced Gemini models, including Gemini 3 Pro, to understand project context and execute multi-step engineering tasks.