Google's Multi-Agent Design Approach

Instead of a single agent handling every role, Google Antigravity adopted an approach of building a team of multiple subagents, each with specialized goals and constraints.

The main agent roles are as follows:

• Sentinel: The 'front desk manager' that structures user intent, creates the Orchestrator, and oversees overall task completion. It does not write code or make technical decisions.
• Orchestrator: A deployment-only manager that breaks down requirements into milestones, runs specialized agents, and synthesizes reports.
• Explorer: The role responsible for analyzing requirements and logs to write a formal strategy for the Orchestrator to execute.
• Worker: The actual coder that implements the strategy, writes code, and performs builds and tests.
• Reviewer: Independently reviews the Worker's changes to verify design accuracy, edge cases, and interface compliance.
• Critic: Stress-tests the solution and performs adversarial testing to find gaps in coverage.
• Auditor: An independent investigator that verifies the authenticity and robustness of the generated solution.