data-set-analysislisted

# Data Set Analysis ## What this does Takes one data file someone attaches, plus what kind of data it is, and writes back one report with four sections in a fixed order: a summary of what's actually in the file, the patterns or trends the numbers show, insights grouped by how much they matter, and recommendations. Every insight says why it landed in its priority bucket. Every recommendation names the insight behind it, so nobody has to take the advice on faith. The metrics the report leans on shift with the data type. A spend file gets read for spend concentration and month-over-month change; a survey file gets read for score distribution and response rate. See `references/type-specific-metrics.md` for the starting list. Nothing in the report goes further than the file supports. When a number or a trend isn't in the data, the report says so instead of filling the gap with something that sounds plausible. ## When to use it Use this once a data file is attached and you want a structured read on it: a spreadsheet of spend, an ads export, a usage log, survey results, a sales pipeline dump, or a general operational data file. It works from the attached file alone. It doesn't pull from a live database, a warehouse, or any connected tool, and it doesn't go looking for a file on its own. If the file isn't attached yet, ask for it before doing anything else. If no data type is stated, ask, per step 1 below, rather than guessing. **One rule governs every stop-and-ask or stop-an