Google Antigravity ships IDE extensions for VS Code, Visual Studio and ACP-compatible editors

Archive entry: this covers an event from August 20, 2026, and we published it on November 8, 2026. The details come from sources dated at the time and may have changed since.

On August 20, 2026, Google Antigravity announced its IDE extensions on the Google Antigravity blog and released an Agent Client Protocol (ACP) server that brought the Antigravity agent to Xcode, JetBrains IDEs, Zed and other ACP clients. Extensions for VS Code and Visual Studio had been released on August 18, 2026.

What the extensions and the ACP server offered

• The VS Code extension v1.0.0 added agentic chat, inline diffs, interactive plan review and Remote-SSH support.
• The Visual Studio extension v1.0.260818.0 added a chat tool window, side-by-side diffs with batch controls, planning artifact tabs and automatic CLI management.
• The ACP server, antigravity-acp (acp 0.11.0), was released for Xcode, JetBrains IDEs, Zed and custom ACP clients.
• Authentication methods were oauth-personal, oauth-business (Gemini Enterprise), gemini-api-key and vertex-ai/agent-platform, and the agent modes were default, auto_edit and yolo.
• Models at launch were Gemini 3.7 Flash (high by default, plus medium and low), Gemini 3.6 Flash, Gemini 3.5 Flash and Gemini 3.1 Pro.

What it meant for developers

Google's coding agent worked inside editors that developers already used, including Xcode and JetBrains IDEs through the open ACP protocol. A Workspace Trust check ran before repo-local skills, hooks or auto-approve modes were loaded. Enterprise admin policies covered terminal auto-execution, file access outside the workspace (DENY, ALWAYS_ASK or NOT_ENFORCED) and an mcpAllowlist.

Follow-up releases and sources

The Xcode, JetBrains and Zed integration v1.3.0 added third-party model support on September 29, 2026, and an Eclipse extension v1.0.0 followed on October 27, 2026. The Google Antigravity changelog lists the releases.

Sources

• Google Antigravity blog listing: Introducing IDE extensions (Google Antigravity, August 20, 2026, official)
• Google Antigravity changelog: IDE Extensions (VS Code v1.0.0, Visual Studio v1.0.260818.0, ACP server) (Google Antigravity, August 20, 2026, official)

Written with AI assistance, strictly from the sources listed above. Before it went live, automated checks verified its dates, sources and every language edition.