Data Analysis Toolkit

About this Skill

End-to-end data analysis toolkit for tabular data (CSV/Excel/Parquet/JSON), time series, and quick machine-learning baselines. Use this skill whenever the user wants to explore, profile, clean, validate, visualize, statistically test, model, forecast, or build a report from a dataset — even if they don't say 'data analysis' explicitly. Trigger on requests like 'what's in this spreadsheet', 'clean up this CSV', 'find correlations', 'is this difference significant', 'predict/classify this column', 'forecast next quarter', 'is there seasonality', 'validate this file against a schema', or 'make me a report from this data'. Prefer this skill over ad-hoc one-off pandas scripts because it ships tested, composable modules and a CLI that produce consistent, reproducible output.