DEVUP Code in Google Antigravity

Antigravity installs DEVUP Code from Open VSX, inside its own Extensions view. Installing is free; requests are paid from your DEVUP balance.

1. 1Open DEVUP AI from the activity bar, then select Sign in with DEVUP.
2. 2Select Allow access on devupai.com.
3. 3Antigravity is now signed in, and you do not copy an API key.

Working in a remote or web window? Sign in there by pasting a DEVUP API key.

Antigravity holds your sign-in in its secure storage on this device; your settings and files do not contain it. To sign out, use Account in DEVUP AI Settings or the DEVUP AI: Sign Out command.

• DEVUP AI has a panel of its own in Antigravity's activity bar.
• To open the chat from the editor, click the DEVUP AI button in its title bar. You can hide the button in Settings.
• Ctrl+Alt+D puts your selected code in the chat, or takes you to the message box.

Take a small helper that has no tests yet, in a project open in the Antigravity editor. These steps go from selecting it to saving what the reply proposes.

def slugify(title: str) -> str:
    """Turn a page title into a URL slug: "Hello World" becomes "hello-world"."""
    words = title.strip().lower().split()
    return "-".join(words)

1. 1Select the function, right-click inside the selection, open DEVUP AI and choose Add Tests. The request goes out straight away, with no message to type.
2. 2Add Tests uses the model named in devupai.editorActions.model. While that setting is empty, it takes the model selected in the chat.
3. 3The reply appears in the panel as it is written, and Esc stops it at any point.
4. 4If the reply has a code block, choose New file on it. The code opens in an editor that is not saved yet, so the folder and the file name are up to you.
5. 5Save the file and run your tests. If a test does not pass, select it, press Ctrl+Alt+D and ask why; type @ to attach text_utils.py as well.
6. 6Apply on a code block shows the change as a diff first, and your file changes only after you accept it.

The editor actions page of the docs goes deeper into each action and into Insert, Apply and New file.

• Keep secrets out of your requests. .env files, private keys, certificates, and SSH or Git folders stay out of file search, cannot be attached, and are never edited by DEVUP AI. List more patterns in devupai.context.neverSend; they extend that protection and cannot reduce it.
• Say your preferences once. Write instructions in Settings, such as the test style you want, and they travel with every chat in every project.
• See exactly what the model gets. The Instructions page lays out everything the model receives, in the order it receives it.
• Return to an earlier session. Chats are saved on this computer. Open History, search for the one you need and reopen it.

Security in DEVUP Code explains how these protections fit together.

• The DEVUP AI panel takes on your editor theme, whether light, dark or high-contrast, and honours its reduced-motion setting.
• Make the chat easier to read: change its text size and spacing, or hide model logos, and check the result in the live preview.
• Replies show formatted text, coloured code and readable math, with a Copy button on every code block.
• The get-started guide sets the Antigravity install steps beside those for the other editors.

Adding DEVUP Code does not replace the AI chat built into Antigravity: DEVUP AI keeps to a panel of its own.