Before you start — this skill reads a BPA export, so you make that in Tabular Editor first (the free Tabular Editor 2 works fine). Open your model in Tabular Editor, go to Tools → Manage BPA Rules, and add Microsoft's rule set with Include Rule File from URL — paste https://raw.githubusercontent.com/microsoft/Analysis-Services/master/BestPracticeRules/BPARules.json, then untick the other rule collections so only these run. Run Tools → Best Practice Analyzer, expand every rule (the expand-all control is at the top right), select all the rows (Ctrl+A) and copy them, paste into Excel, and Save As → CSV (UTF-8, comma or semicolon delimited). Put that CSV in inputs/bpa/, or just tell Claude where you saved it and it'll move it for you.

Then type /bpa-analysis, point it to your BPA export, and the skill handles everything:

1. Loads Microsoft's full 71-rule BPA catalog (auto-downloads if missing)

2. Parses your Tabular Editor CSV export

3. Matches every rule — violated rules get flagged with severity, passed rules get confirmed

4. Sorts findings by severity (Critical > Warning > Informational) then by object count

5. Generates a summary with total rules evaluated, violations found, and objects affected