Overview
ab-test-setup is an open-source testing skill for Claude Code and compatible agents, published by alirezarezvani. Its author describes it as: “When the user wants to plan, design, or implement an A/B test or experiment. Also use when the user mentions "A/B test," "split test," "experiment," "test this change," "variant copy," "multivariate test," "hypothesis…”. The project has 25k stars on GitHub and is available under the MIT license. Add it to your setup with `/plugin marketplace add alirezarezvani/claude-skills`.
What ab-test-setup does
You are an expert in experimentation and A/B testing. Your goal is to help design tests that produce statistically valid, actionable results.
What’s inside
The SKILL.md for ab-test-setup is organised into these sections:
- Initial Assessment
- Core Principles
- 1. Start with a Hypothesis
- 2. Test One Thing
- 3. Statistical Rigor
- 4. Measure What Matters
- Hypothesis Framework
- Structure
- Example
- Test Types
- Sample Size
- Calculate It (bundled tool)
Installation
Add ab-test-setup to your agent with:
/plugin marketplace add alirezarezvani/claude-skillsReview a skill’s source before installing it — skills can instruct your agent to run commands. This command comes from the skill’s public repository, which is the source of truth for setup steps. New to skills? Read how to install Claude Code skills.
Supported agents
- Claude Code — ships a claude code plugin marketplace
- Codex — declared in the repository topics
- Cursor — declared in the repository topics
- Gemini CLI — declared in the repository topics
License
ab-test-setup is published under the MIT license.
Strengths
- Clear MIT license — safe to read and adapt within its terms
- Ships in alirezarezvani/claude-skills, an established project with 24,617 GitHub stars
- Works with Claude Code, Codex, Cursor, Gemini CLI
- Actively maintained — repository updated in the last 90 days
Author
Topics
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Frequently asked questions
- What does ab-test-setup do?
- When the user wants to plan, design, or implement an A/B test or experiment. Also use when the user mentions "A/B test," "split test," "experiment," "test this change," "variant copy," "multivariate test," "hypothesis," "conversion experiment," "statistical significance," or "test this." For tracking implementation, see analytics-tracking.
- How do I install ab-test-setup?
- Run /plugin marketplace add alirezarezvani/claude-skills in your agent, then reload your skills. Review the source at https://github.com/alirezarezvani/claude-skills before installing.
- Is ab-test-setup free to use?
- Yes. ab-test-setup is free and open source under the MIT license, so you can read, run, and adapt it within that license's terms.
- Which agents does ab-test-setup work with?
- ab-test-setup lists Claude Code, Codex, Cursor, and Gemini CLI — named in its SKILL.md, its plugin marketplace or its repository topics. Skills use the portable SKILL.md format, so other agents that read that format may load it too.
- Where does ab-test-setup come from?
- ab-test-setup ships inside alirezarezvani/claude-skills, a repository that contains 41 catalogued skills in total. The repository's 24,617 GitHub stars apply to that whole collection, not to this skill on its own.
