Google Antigravity Launches Custom Agents with YAML Config and Inter-Agent Messaging

rseroter · x · 2026-08-13

The Google Antigravity team introduced Custom Agents in version 2.0 and the CLI, aiming to solve the lack of specialization and context window bloat in general-purpose coding assistants.

Developers can quickly define agents with specific roles, scoped instructions, and tool constraints via YAML files. These custom agents can run as the main agent with hooks and context isolation, and uniquely support inter-agent messaging, enabling true task division and parallel processing in complex coding workflows.

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