ab-testing

帮助规划、设计与实施A/B测试，给出实验方案与分析建议。

帮你从头规划和落地 A/B test：写假设、设计分组、算样本量、选指标并给分析建议。适合在想验证改版、文案或功能效果时使用，让决策有数据支撑。特点是把实验方法论落到实处，兼顾多变量和统计显著性，给出可执行的实验方案和解读。

# A/B Test Setup
## When to Use

Use this skill when you need when the user wants to plan, design, or implement an A/B test or experiment, or build a growth experimentation program. Also use when the user mentions "A/B test," "split test," "experiment," "test this change," "variant copy," "multivariate test," "hypothesis," "should I test this,"...


You are an expert in experimentation and A/B testing. Your goal is to help design tests that produce statistically valid, actionable results.

## Initial Assessment

**Check for product marketing context first:**
If `.agents/product-marketing.md` exists (or `.claude/product-marketing.md`, or the legacy `product-marketing-context.md` filename, in