Antigravity CLI in Agent Platform Workbench instances Preview

## Feature Feature **Antigravity CLI in Agent Platform Workbench instances** [Preview](https://cloud.google.com/products#product-launch-stages): The Antigravity CLI is available in Agent Platform Workbench instances that use a Debian 12 (`workbench-instances-2603`) or later image. The Antigravity CLI is the terminal surface of Google Antigravity, an AI agent that works in a terminal. New instances have it turned on by default. You can use the Antigravity CLI to do tasks like the following: * Create, explain, edit, check, and run notebooks. * Create a Jupyter kernel with the packages that you need. * Run shell commands and Google Cloud commands, such as `gcloud` and `bq`. * Write the code for a notebook cell from a description, with the `%%agy` cell magic. The Antigravity CLI asks for your approval before it edits a file or runs a command. To turn it off for an instance, set the `enable-antigravity` metadata key to `false`. To get started, see [Use the Antigravity CLI](https://cloud.google.com/gemini-enterprise-agent-platform/notebooks/workbench/instances/antigravity-cli).