ai_test_helper 作者： Karaki

AI Test Helper highlights any text on a webpage and instantly shows the answer in a small overlay box.

Features:
- Select any question to get a short, direct answer
- Supports multiple choice, true/false, calculations, and open questions
- Full test mode: select all questions at once, get numbered answers
- Multiple API keys with automatic fallback
- Draggable and resizable overlay
- Enable/disable via toolbar button

Requires a free Google Gemini API key (no credit card needed).
Get your key at: https://aistudio.google.com/apikey