Refactor agent.py to implement basic arithmetic operations (multiply, add, subtract, divide, modulus) and restore wiki and arxiv search functionalities. Remove SerpAPI, audio transcription, Excel analysis, and OCR tools. Update requirements.txt to include Gradio for OAuth support.
Enhance Basic Agent Evaluation Runner with improved error handling, logging, and user instructions. Refactor question fetching and submission processes for better clarity and robustness.