Antigravity in Alter

Hey everyone,

We’re bringing Antigravity into Alter as a first-class agent. That means you can hand off tasks for Antigravity to work on in the background—and see the content of its session natively in Alter.

Delegate a task and keep going

Sometimes you have work you’d like an agent to take on while you focus elsewhere. Now you can delegate that task to Antigravity in Alter and let it run in the background.

You don’t have to pause your other work just because you’ve handed something off. Antigravity can handle the delegated task while you continue with what’s next.

Antigravity becomes an agent in Alter

Antigravity is now a first-class agent in Alter. In simple terms, that means it’s part of the agents you can work with inside Alter—not just a separate tool you have to think of as a different destination.

You can bring Antigravity into your workflow when a task is a good fit for it, and delegate work without treating it as a separate process.

See the session content in Alter

Handing off a task is only part of the experience. You also need a way to see what happened.

You can now view the content of your Antigravity session directly in Alter. The work you delegated and the session content are closer together, so you can follow along without having to leave Alter to find the session.

Why we’re bringing these together

Background work is most useful when it fits naturally into the way you already work. By making Antigravity a first-class agent in Alter and bringing its session content into Alter, we’re making it easier to delegate a task and stay connected to the work.

Cheers,
Sam & Olivier

Full Changelog

New Features & Enhancements

• Antigravity coding agent: Delegate coding tasks to Antigravity from Alter, manage them from the Hub, and follow the session natively while the work runs in the background.
• Coding session viewers: Inspect live and saved coding-agent sessions in read-only Alter tabs, with streaming conversation content and provider-native history.

Bug Fixes & Stability

• Conversation startup: Show your first message sooner, and prevent cancelled or failed launches from blocking other conversations or retries.
• Coding tools: Improve local installation checks, and support OpenCode 2 and later.
• Transcription: Improve processing warnings and error details, preserve SDK and speaker-model diagnostics, and make automatic calendar matching best-effort.