Infinite "Package & route cached!" spam in Gemini 3.5

While using Gemini inside Antigravity, the model suddenly starts repeatedly sending:


Package & route cached!

The message is generated continuously and floods the conversation, making the chat unusable.

Expected Behavior:

Gemini should respond normally and not repeatedly generate internal cache-related messages.

Actual Behavior:

Gemini enters a loop and continuously outputs “Package & route cached!” dozens or hundreds of times without user interaction.

The gemini 3.5 model is faulty.