Jules

Quick Verdict

Jules is Google’s autonomous coding agent, built on Gemini and designed to handle software development tasks from start to finish. It integrates with GitHub workflows and can open pull requests, fix bugs, and implement features with minimal intervention.

What Jules Is Best For

• Fixing GitHub issues — assign an issue to Jules and it works toward a solution
• Bug fixes — describe a bug and Jules finds the cause and writes a fix
• Feature implementation — describe what to build and Jules implements it
• Code reviews — analyze code for problems and suggest improvements
• PR creation — Jules creates pull requests with its changes for human review

How Jules Works

Jules connects to your GitHub repository and works asynchronously. You describe a task (or assign an issue), Jules works on it in the background, and when done it opens a pull request with the changes for you to review and merge.

Honest Limitations

• Currently in beta — availability and features may be limited
• GitHub-focused — primarily designed around GitHub workflows
• Requires review — always review Jules’ pull requests before merging

Alternatives Worth Knowing

• Devin — the category leader for autonomous coding agents
• Codex — OpenAI’s coding agent
• Claude Code — Anthropic’s terminal-based coding agent