What does "sanity check" mean?

A check to make sure that something does not contain elementary mistakes or impossibilities and is not based on invalid assumptions.

Sanity check

Common synonyms include: argument validation, basic check, check, consistency check, dutch valideren activity, plausibility check.

noun, verb

noun, verb ·Rare ·Advanced level

Noun

1
A check to make sure that something does not contain elementary mistakes or impossibilities and is not based on invalid assumptions.
"Near-synonyms: reality check; sniff test"

Verb

"Near-synonyms: reality check; sniff test"