Google Antigravity 2.17.0

2.17.0 September 22, 2026 Plan before you build Type /plan and the agent drafts a plan you can read and edit before it writes any code. The Agent setting that governs this is now called Plan Review Policy, and you can set it to review every plan, review only when the agent judges it worthwhile, or skip review entirely. Improvements (11) Reveal in Finder for projects. Projects in the sidebar have a new Reveal in Finder entry (Show in File Explorer on Windows) in their overflow menu, opening the project folder in your system file manager. Multi-folder projects open one window per folder. Toggle theme from the command palette. A new "Toggle Between Light/Dark Themes" command flips the theme without a trip to Settings. On System, the first toggle pins the opposite of whatever your OS resolved to. Custom agents can declare their own hooks. A Markdown agent can list hook files in its front matter with a hooks: entry. Paths may be relative to the agent, relative to the project, or absolute. Save Video. Right-click a video anywhere it appears — in the chat, the file viewer, a browser recording, or the full-screen preview — and choose Save Video. Rules no longer crowd out everything else. Rules get their own 20,000-token budget, so a large rules file stops pushing your skills, subagents and MCP tools out of the agent's context. A rule over budget is listed by file path and description for the agent to open when relevant, instead of being cut short. Per-project configuration moved. Repository customization settings now load from /.gemini/config.json . The older .agents/settings.json is no longer read — move any personal_customization_dir entry into the new file. Paste properly into the chat box. Right-clicking the chat input and choosing Paste handles images and rich text, keeping links as markdown, instead of only plain text. Pasting over a selected attachment no longer drops the pasted text. Slash commands and plugins read like products. The pill inserted when you pick a sl