Antigravity 2.18.1 adds a plugin marketplace and closes sensitive-path prompts
Google's Antigravity 2.0 app added a Customizations marketplace for discovering and managing plugins, clearer plugin slash commands, archived-conversation filters and customization token-budget visibility. The same release fixed files under .git, .env and .vscode being modified without a prompt under Default and Request Review presets.
Why it matters: A built-in marketplace widens the extension supply chain just as the release closes a concrete permission-prompt gap around sensitive repository and environment paths. Plugin provenance and negative permission tests should become part of every rollout.