Comprehensive data analysis toolkit for Python using pandas, numpy, and visualization libraries. When Claude needs to: (1) Load and explore datasets from CSV, JSON, Excel, or databases, (2) Perform statistical analysis and identify trends, (3) Clean and transform messy data, (4) Generate formatted reports with visualizations, or (5) Detect outliers, missing data, and data quality issues. Use for data exploration and insight generation, not for machine learning model building.