Building with Gemini 3 in Jules

Jules, an always-on, multi-step software development agent, now features Gemini 3, offering clearer reasoning and better reliability. Recent improvements include parallel CLI runs, a stable API, and safer Git handling. Upcoming features include directory attachment without GitHub and automatic PR creation. Jules aims to reduce software writing overhead so developers can focus on building.

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Google
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Kathy Korevec
•3 min read•intermediate•
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GeminiGit

Overview

The article introduces Gemini 3, Google's latest AI model, now integrated into Jules, an autonomous coding agent for Google AI subscribers. It highlights the enhanced capabilities of Gemini 3 Pro in Jules, including improved context management and multi-step task handling.

What You'll Learn

1

How to utilize Gemini 3 Pro's capabilities in Jules for coding tasks

2

Why context management is crucial in multi-step coding tasks

3

How to leverage Jules Tools and the Jules API for seamless project management

Prerequisites & Requirements

  • Familiarity with coding workflows and AI models(optional)
  • Access to Google AI and Jules platform

Key Questions Answered

What improvements does Gemini 3 Pro bring to Jules?
Gemini 3 Pro enhances Jules with clearer reasoning, stronger intent alignment, and improved reliability in handling multi-step tasks. This allows for more coherent plans and better context maintenance with less user effort.
How does Jules ensure context is maintained across different surfaces?
Jules maintains a unified view of projects across various surfaces like the terminal and the Jules API, allowing users to switch between them without losing context. This design aims to reduce the cognitive load on developers.
What recent updates have been made to Jules?
Recent updates to Jules include support for parallel runs in the CLI, a stable API for custom workflows, improved memory handling, and enhanced VM performance. These updates aim to make everyday use more predictable and efficient.
What future improvements are planned for Jules?
Future improvements for Jules include automatic title updates for better history tracking, CLI shortcuts for faster actions, and simplified start modes. These enhancements are designed to streamline user experience and efficiency.

Technologies & Tools

AI Model
Gemini 3
Used as the foundation for coding tasks in Jules
Coding Agent
Jules
Provides an autonomous environment for coding tasks

Key Actionable Insights

1
Utilize Gemini 3 Pro's enhanced capabilities to streamline your coding tasks in Jules.
By leveraging the improved reasoning and context management features, you can reduce the time spent on task transitions and focus more on developing your ideas.
2
Take advantage of the Jules API for custom workflows and deeper integrations.
This allows you to automate repetitive tasks and tailor the coding environment to better fit your project needs, enhancing overall productivity.
3
Explore the new CLI features, such as parallel runs and the diff viewer.
These tools can help you manage changes more effectively, ensuring that you can review and apply modifications with confidence.

Common Pitfalls

1
Failing to utilize the context management features of Jules can lead to confusion during multi-step tasks.
Without proper context, developers may struggle to maintain coherence in their workflows, resulting in increased cognitive load and potential errors.