showstack / check
Pre-show check
Describe the rig once. Everything that can be checked by arithmetic gets checked, and the answers come back sorted by how much they matter rather than by which calculator they came from.
What this is not.
It cannot see your venue, your supply impedance, your local wiring regulations, or what somebody else has already hung on that beam. It catches arithmetic mistakes, which is a real and clearly bounded thing to catch, and it is not a substitute for a competent person with a meter or for the governing standards. Every figure here is the same arithmetic the calculators run and the test suite checks.