Statistics skills for Claude Code and Codex
Skills for statistical work: guided test selection and assumption checks, power and sample-size calculation, statsmodels regression and time-series models, Bayesian modeling with PyMC, survival analysis, experimental design, uncertainty propagation, federated statistics and A/B test planning. They give an agent the procedure that makes a statistical claim defensible.
Highest-scoring statistics skills in the October 22, 2026 snapshot: ab-testing from coreyhaines31/marketingskills (88/100). Scores come from the Suede Skill Check.
- 12 listed skills
- 4 repositories
- 1 with full pages
1 from official publishers. 7 bundle scripts. 3 connect to an outside service. Listed in Science and Research (8), Marketing and SEO (1), Data, Analytics and Databases (1), Testing and QA (1), AI Agents and LLM Engineering (1).
All 12 statistics skills
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| Skill | Repository | What it does |
|---|---|---|
| ab-testing 88/100 · B | coreyhaines31/marketingskills | Plans, designs, and implements A/B tests and experiments, and helps build a growth experimentation program, including hypotheses and multivariate tests. |
| aeon 87/100 · B | K-Dense-AI/claude-scientific-skills | This skill should be used for time series machine learning tasks including classification, regression, clustering, forecasting, anomaly detection… |
| experimental-design 88/100 · B | K-Dense-AI/claude-scientific-skills | Designs experiments and studies BEFORE data is collected — choosing a design, randomizing, blocking, and laying out treatment combinations so… |
| nvflare-fed-stats 85/100 · B | NVIDIA/skills | Compute federated statistics over tabular data (count, sum, mean, stddev, var, histogram, quantile, noise-protected min/max) and image data (count… |
| pymc 89/100 · B | K-Dense-AI/claude-scientific-skills | Builds and checks Bayesian models with PyMC, including hierarchical models, NUTS MCMC, variational inference, mutable-data predictions, posterior… |
| scikit-survival 81/100 · B | K-Dense-AI/claude-scientific-skills | Builds, evaluates, and audits right-censored or competing-risk survival workflows with scikit-survival, including leakage-safe preprocessing, model… |
| statistical-analysis 87/100 · B | K-Dense-AI/claude-scientific-skills | Guided statistical analysis for research data - test selection, assumption checking, effect sizes, power analysis, Bayesian alternatives, and… |
| statistical-power 90/100 · A | K-Dense-AI/claude-scientific-skills | Calculates sample sizes and statistical power for study planning. Applies when someone asks "how many subjects/samples/replicates do I need", wants… |
| statsmodels 79/100 · C | K-Dense-AI/claude-scientific-skills | Fits and diagnoses Python statistical models including OLS, GLM, discrete and mixed models, ARIMA and SARIMAX. Supports coefficient inference… |
| Suede AI A/B Testing Skills 91/100 · A | JasonColapietro/suede-creator-skills | Suede AI A/B Testing Skills. Use when asked to "design an A/B test", compare variants, assess reliability, or build an experiment backlog… |
| timesfm-forecasting 81/100 · B | K-Dense-AI/claude-scientific-skills | Performs zero-shot time-series forecasting with Google's TimesFM, including regular-grid CSV preparation, quantile forecasts, XReg covariates, and… |
| uncertainty-and-units 90/100 · A | K-Dense-AI/claude-scientific-skills | Tracks physical units and propagates measurement uncertainty in scientific calculations using pint and uncertainties. Use for unit conversion and… |
How to choose statistics skills
Plan before you collect. experimental-design and statistical-power fix the design and sample size up front, and the A/B testing skills do the same for product experiments.
For analysis, statistical-analysis walks through test choice and assumptions; statsmodels, PyMC and scikit-survival cover specific model families in Python.
These skills run Python against your data. Check the scripts list on each page and keep raw data unchanged so every result can be reproduced.
Related topics
Machine Learning 29Marketing Analytics 19Data Analysis 27Physics and Quantum Computing 26
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