Antigravity Desktop doesn’t show how much context the current session is using. I wanted to see it before autocompact, or before running /compact myself, so I built a small open-source plugin for it.
It opens in the side panel and shows context usage, an estimated breakdown, and a forecast for the next message.
Tested on Windows with Antigravity Desktop 2.24.0. Feedback from macOS/Linux users is welcome.