“Hacking” Google Antigravity to develop AL extensions for Dynamics 365 Business Central.

Some weeks ago Google introduced Antigravity, its new agentic development platform powered by Gemini 3 (but also supports Claude Sonnet 4.5 and GPT-OSS 120B) that combines a familiar, AI-powered coding experience (forked from Visual Studio Code/Windsurf) with a new agent-first interface.

Google has introduced several capabilities that make Antigravity different from existing AI coding tools like Cursor or GitHub Copilot. First of all, Antigravity treats AI agents not as assistants but as primary workers capable of:

• Planning tasks
• Coordinating with other agents
• Executing code
• Running browser operations
• Generating reports

Antigravity introduces also two interface modes:

• the Editor View, that act as the developer IDE, where the AI assistant lives in a side panel
• the Manager View, useful for coordinating multiple agents, it allows parallel workflows across projects and acts as the “mission control” for autonomous agents.

I started testing this Google’s tool for some of my develoopment tasks, with a great experience on using Gemini 3 Pro:

But after playing with it for a while, it was inevitable that I would ask myself the following question:

Why not try to use it for AL development?

Unfortunately Antigravity uses Open VSX as marketplace (an Eclipse open-source project and alternative to the Visual Studio Marketplace) and here you will not find any AL development tools. This was my first obstacle to solve…

To access the standard Visual Studio Code marketplace, you need to use some hidden urls:

• VS Code Gallery Service Url API: https://marketplace.visualstudio.com/_apis/public/gallery
• VS Code Gallery Items url: https://marketplace.visualstudio.com/items

and add them in Antigravity Editor settings as follows:

Now you have access to the classic Visual Studio Code marketplace and you can find lots of your favourite extensions for developing with AL (here for example I’ve searched for mine):

But one (the most important) is missing: The Microsoft’s AL extension for Dynamics 365 Business Central.

To install it, you need to use the .VSIX package file. An hidden link to retrieve it directly from the Visual Studio Code Marketplace is the following: https://marketplace.visualstudio.com/_apis/public/gallery/publishers/ms-dynamics-smb/vsextensions/al/VERSION/vspackage

where VERSION is the version number of the AL language extension (like for example 17.0.1869541).

After downloading the VSIX, you need to install it in Antigravity:

1. In Antigravity, go to the Extensions view (Cmd+Shift+X).
2. Click the “…” menu at the top-right of the Extensions pane.
3. Select “Install from VSIX…”.
4. Select the downloaded file.

After installation, reload the window, and the AL Language support will be active:

Now you’re ready to start developing AL extension. Everything is now working. Here is AL Explorer:

and here is the standard code editor where you can write your AL code(same experience as in Visual Studio Code, with full intellisense and so on):

The AL extension package can be compiled directly in Antigravity as usual:

You have the full integrated AI capability of Gemini 3 Pro ready to use for vibe coding (very very powerful model):

and you can publish your AL extension directly in your Dynamics 365 Business Central online sandbox as in Visual Studio Code:

The AL coding experience is now complete. You can use Google Antigravity for AL development as you normally use Visual Studio Code every day.

Cool? I think so… this tool is really powerful and I think it worth a bit of “hacking” to make it work with AL, because it’s another developer tool that helps on moving your dev experience into AI-native workflows.

Original Post https://demiliani.com/2025/11/26/hacking-google-antigravity-to-develop-al-extensions-for-dynamics-365-business-central/