[Bug]: Antigravity CLI on 0.14.1

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• I searched existing issues and confirmed this is not a duplicate.
• I replaced the example text with the real behavior, reproduction steps, expected result, and version from the app's About menu or od --version.

What happened?

Antigravity CLI stops to work in Open design after update to 0.14.1 version. Claude code CLI works perfectly, but while using Antigravity CLI the agent responds always the same "It looks like your message came through empty. What can I help you with?"

Steps to reproduce

1. Open Open Design
2. Select Antigravity CLI as the code agent (no matter what model)
3. Write anything in the chat field and "Send"
4. Receive message "It looks like your message came through empty. What can I help you with?"

Expected behavior

Instead of always the same generic message - "It looks like your message came through empty. What can I help you with?" agent must perform needed actions what was sent as a promt in the chat

Open Design version

0.14.1

Platform

macOS (Apple Silicon)

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Additional context

No response