The Day You Finally Clean the Data

Profile CSV or Parquet files for missingness, leakage, and outliers, then crunch big tables fast with DuckDB and Polars. Wrap up with proper statistical tests, clear charts, and an Excel workbook whose formulas actually recalculate.

7 skills

XLSX Creation & Editing

Official

Official Anthropic skill for building, editing, and validating Excel files with real formulas, professional formatting, and automated recalculation checks.

Docs & Office★ 167,132AI score 10/10

Data Scientist (High-Performance DuckDB/Polars Analysis)

A skill that analyzes CSV, Parquet, and JSON data by intelligently routing each operation to either DuckDB or Polars for maximum speed.

Data & Analytics★ 67,531AI score 9/10

Seaborn Statistical Visualization

Generates correct, up-to-date seaborn 0.13 code for distribution, relationship, and categorical plots from pandas DataFrames.

Data & Analytics★ 33,030AI score 9/10

Exploratory Data Analysis (Safe Mode)

A fail-closed EDA skill that profiles authorized local scientific files, audits missingness, leakage and outliers, and drafts a rigorous report without exposing raw values.

Data & Analytics★ 33,030AI score 9/10

Polars DataFrame Guide

A skill that helps Claude write fast, idiomatic Polars code using its expression API, lazy engine, and pandas migration mappings.

Data & Analytics★ 33,030AI score 9/10

Matplotlib Visualization Guide

A skill that steers Claude toward idiomatic Matplotlib code for publication-quality figures.

Data & Analytics★ 33,030AI score 9/10

Statistical Analysis

An end-to-end guide for research statistics: picking the right test, verifying assumptions, reporting effect sizes, and writing APA-style results.

Data & Analytics★ 33,030AI score 9/10