Community · by coreyhaines31

A/B testing Claude skill

The A/B testing skill guides an AI assistant in planning, designing, and running experiments that produce statistically sound, actionable findings.

MIT licence
★ 55,500 on GitHub (whole repository)
Verified against its source 19 Oct 2026

View SKILL.md Repository

What the A/B testing skill does

The assistant can help structure split tests around a clear hypothesis, a fixed sample size decided in advance, and primary, secondary, and guardrail metrics. It also addresses whether to deploy variants on the client side or the server side, and orders candidate experiments by ICE score. Activate it when someone needs help drafting, designing, or deploying a split test, or setting up an ongoing growth experimentation practice.

What it covers

Sample size guidance and calculators
Primary, secondary and guardrail metric selection
Client-side and server-side implementation guidance
Statistical result analysis and interpretation

How to install it

In Claude Code

/plugin marketplace add coreyhaines31/marketingskills

/plugin install marketing-skills

This plugin also installs: ad-creative, ads, ai-seo, analytics, aso, attribution, churn-prevention, co-marketing, cold-email, community-marketing, competitor-profiling, competitors, content-strategy, copy-editing, copywriting, cro, customer-research, directory-submissions, emails, events, free-tools, image, influencer-marketing, launch, lead-magnets, marketing-council, marketing-ideas, marketing-loops, marketing-plan, marketing-psychology, offers, onboarding, paywalls, popups, pricing, product-marketing, programmatic-seo, prospecting, public-relations, referrals, revops, sales-enablement, schema, seo-audit, signup, site-architecture, sms, social, video.

What you need

In its documentation's own words:

“Account permissions and code execution must allow skills”

Steps change between versions. Check the official instructions before you install.