Agent Skills: lumen-abtest
A/B test design — produce an experiment spec with hypothesis, primary metric, MDE, sample size, run time, and decision rule. Also determines when NOT to A/B test and what to do instead. Use when asked to "design an A/B test", "should we test this", "experiment design", "how do we know if this works", "what's the sample size", or "set up an experiment".
ID: jeremylongshore/claude-code-plugins-plus-skills/lumen-abtest
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