Google Antigravity 2.9.1

2.9.1 August 20, 2026 Remote Control, faster project switching, and more This update introduces Remote Control to drive and monitor agent sessions on your local device from any browser, alongside core performance gains, improved sidebar navigation, and cleaner error recovery. Improvements (11) Introduced Antigravity Remote Control, allowing you to securely connect to and drive agent sessions on your local device from any browser, with proactive push notifications when agents complete tasks or require input. Improved performance across the app: faster startup and project switching, faster loading of conversations with long histories, less lag during active sessions, and smoother opening and collapsing of the sidebar and side panels. Added the ability to collapse top-level sidebar sections. The ungrouped list now shows up to 30 conversations, and conversation actions appear instantly on hover. Notification toasts now appear in the bottom-right corner and collapse into a compact stack that expands on hover, so they no longer cover the screen. Hovering over a file's comment count pill now previews all comments on that file alongside their line numbers, and clicking a comment opens the referenced file, diff, or artifact with that comment focused. Refreshed the Customizations settings screen with collapsible sections and item counts for skills, rules, plugins, and custom agents, consistent back navigation across sub-pages, and clearer card layouts and status indicators for MCP server configurations. Clicking Retry on an agent error card now resumes the task directly, without adding an artificial "Continue" message to your conversation. Custom agents can now reuse the skills, rules, and subagents you already have, using a single inheritCustomizations setting in the agent's frontmatter. Added support for uploading and attaching WebP images in chat. Added syntax highlighting for PowerShell ( .ps1 , .psm1 , .psd1 , and pwsh / ps1 code fences) and Zsh ( .zsh , zsh ) in chat an