This generates test datasets with realistic looking data when you need to populate a database or demo an application. You specify the data type (customer feedback, transactions, user profiles), how many rows, what columns you want, and it spits out CSV, JSON, SQL inserts, or a Python script you can run. The useful part is it handles constraints and business rules, so if you want bug reports to only have low ratings or emails to use real looking domains, it respects that. Honestly beats manually creating fake data or writing your own faker script for the hundredth time, especially when you need something quick for a staging environment.
npx skills add https://github.com/phuryn/pm-skills --skill dummy-dataset