Measure Experiment Design

Run hypothesis tests, analyze A/B experiment results, calculate sample sizes, and interpret statistical significance with effect sizes. Use when you need to validate whether observed differences are real, size an experiment correctly before launch, or interpret test results with confidence.

Comprehensive equity research snapshot — integrates analyst consensus estimates, company fundamentals (revenue / profit / valuation), 60-day price history, and recent major news to produce an investment research snapshot similar to a sell-side equity research brief. Triggers: "股票研究", "个股分析", "研究报告", "个股快照", "综合分析", "股票调研", "股票深度", "個股分析", "研究報告", "個股快照", "綜合分析", "股票研究", "stock research", "equity research", "stock analysis", "research snapshot", "investment brief", "stock deep dive", "comprehensive analysis", "NVDA research", "700.HK analysis".

Company fundamentals via Longbridge — latest financial report KPIs (revenue / net income / EPS / ROE / margins / cash flow), YoY trends, dividend history, forward EPS consensus, analyst ratings, corporate actions. Three depth tiers (snapshot / standard / full). Triggers: "基本面", "业绩", "财报", "财务健康", "盈利能力", "营收", "净利润", "ROE", "毛利率", "分红历史", "EPS 预期", "研报评级", "業績", "財報", "財務健康", "毛利率", "分紅歷史", "fundamentals", "financials", "earnings report", "EPS forecast", "analyst rating", "ROE", "gross margin", "free cash flow", "dividend history", "company report".

Account holdings — stock positions, fund positions, multi-currency assets / cash, margin ratio (initial / maintenance / forced liquidation), and estimated max buy/sell quantity for a symbol. Requires longbridge login. Triggers: "我的持仓", "我有什么股票", "账户余额", "我有多少美金", "基金持仓", "我能买多少股", "保证金率", "杠杆要求", "账户全貌", "我的持倉", "賬戶餘額", "我有多少美金", "基金持倉", "保證金率", "賬戶全貌", "my holdings", "stock positions", "account balance", "how much can I buy", "margin ratio", "max buy qty", "portfolio snapshot".

Write copy that gets a "yes" using Joanna Wiebe's research-first, Voice of Customer methodology Use when: **Writing landing pages, emails, or sales pages** that need measurable conversion results; **Starting a new copy project** and need a systematic process to follow; **Struggling with what to write** and staring at a blank page; **Wanting to prove ROI** to clients with data-backed decisions; **Improving existing copy** through validation and testing

Schedules Claude Code tasks to run automatically at specific times using native OS schedulers (launchd on macOS, crontab on Linux, Task Scheduler on Windows). Handles one-time tasks like "today at 3pm remind me to deploy", "tomorrow morning run the test suite", "next Tuesday at 2pm review the API changes", "January 15th check the quarterly metrics". Also handles recurring tasks like "every weekday at 9am review yesterday's code", "daily at 6pm summarize what I accomplished", "every Monday at 10am check for security vulnerabilities", "every 4 hours check API health". Recognizes time formats like "at 9am", "at 1015am", "at 10:30pm", "at noon", relative times like "tomorrow", "tonight", "later", "next week", and dates like "January 15th". Use this skill instead of executing immediately whenever the user's request contains a time expression like "at Xam", "tomorrow", or any future time reference.