概要
This skill ensures data integrity in algorithmic trading workflows by prioritizing the Alpaca API over unreliable fallbacks like yfinance, specifically for cryptocurrency data. It implements a 'fail-fast' mechanism that immediately alerts users if crypto trading is enabled without proper Alpaca API configuration, preventing wasted compute time and poor model performance caused by the zero-volume bars and missing data points common in free data sources. By ensuring 'garbage in' is stopped at the source, it guarantees that training pipelines only proceed with production-grade market data.