Skills for Real Engineers. Straight from my .agents directory.
39 skills
pm-experiment-designer
Agent skill from
A/B 实验设计 Skill。从实验目标出发，输出完整的实验方案（假设、分组、指标体系、样本量估算、止损规则、判定规则）。 触发条件：用户提到"A/B 测试"、"AB 实验"、"实验设计"、"对照实验"、"分流实验"、"灰度方案"、"实验方案"、"样本量计算"、"显著性检验"、"实验评估"、"p值"、"置信区间"、"MDE"、"统计功效"、"实验周期"、"止损规则"等关键词。 也适用于：用户提供了实验目标/可改动点/数据量级/周期限制要求产出实验方案；用户要求评估现有实验设计是否合理；用户要求制定实验判定标准和决策规则。 典型输入：实验目标 + 可改动点 + 当前数据量级 + 可接受实验周期。 不适用于：纯数据分析（用 pm-analytics）、纯埋点设计（用 tracking-spec-writer）、纯PRD写作（用 pm-prd-writer）。
How to install pm-experiment-designer
install pm-experiment-designer
# install the pm-skills pack with the skills CLI
npx skills add SpaceZephyr/pm-skills# or add only this skill to Claude Code: copy the folder
pm-experiment-designer/
# into
~/.claude/skills/pm-experiment-designer/ (all projects)
.claude/skills/pm-experiment-designer/ (one project)
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