At Google I/O '26, Google introduced a unified development toolkit that includes Antigravity 2.0 and the Managed Agents API. These tools are designed to improve how developers build locally and deploy securely to the cloud, all while operating on a shared protocol layer.
The evolution of Vertex AI into the Gemini Enterprise Agent Platform marks a significant step forward. This comprehensive platform allows for the building, scaling, governance, and optimization of agents, now integrated directly into local development tools. The aim is to bridge the gap between rapid prototyping and compliant corporate deployment, offering a modular approach that caters to various project needs.
The Four Rungs of Agent Development
The agent development ecosystem is structured as four distinct rungs, providing a pathway from simple configuration to advanced code-first control. This structure is additive, allowing developers to start quickly on the lower rungs without losing the ability to customize further as they progress.
All four rungs operate under the A2A protocol, ensuring interoperability across different agent architectures.
- Rung One: Agent Studio (Low Code)
A visual workspace that enables users to discover models, engineer prompts, and deploy agents without coding. Ideal for business teams and rapid prototyping. - Rung Two: Managed Agents API
This new API allows technical teams to define agent behavior while Google Cloud manages the infrastructure. It simplifies agent deployment through a secure sandbox environment. - Rung Three: Antigravity and Friends
Antigravity serves as the primary solution for leveraging AI in coding tasks. It consolidates various development tools, including Antigravity 2.0, a desktop application for managing coding agents, and Antigravity CLI for command-line operations. - Rung Four: Agent Development Kit (ADK 2.0)
This code-first approach is designed for software engineers to build custom agent architectures from scratch. It features enhancements like collaborative workflows and dynamic routing capabilities.
Integration with Other Coding Agents
While Antigravity is the recommended solution, Google Cloud supports integration with various coding agents. The platform's open nature allows developers to maintain their preferred tools while benefiting from Google Cloud's security and compliance.
Getting Started with Google Cloud's Tools
For those new to these tools, here’s a suggested approach:
- Begin with Antigravity 2.0: Familiarize yourself with the desktop app and its functionalities.
- Build a mesh: Explore the Managed Agents API and transition to ADK 2.0 for complex orchestration.
- Utilize Skill Registry: Leverage this centralized catalog for managing domain logic.
- Evaluate your agents: Use the Gemini Enterprise Agent Platform evaluation suite for thorough testing.
- Secure your deployment: Implement governance capabilities to ensure security throughout your development process.
Notably, this entire process can be executed on a Google Cloud Starter Tier account without needing a billing account, with the first two app deployments being complimentary.
Conclusion
The advancements presented at Google I/O '26 position the Gemini Enterprise Agent Platform as a robust foundation for developing agents. With a focus on security, flexibility, and integration, developers can choose the rung that best fits their project needs while ensuring their data remains secure within their Cloud project.
