Every case below is real: 24 of TypeSafeStroke's own hand-written scenarios plus 18 systematically generated boundary cases, each scored on IV thrombolysis and/or EVT eligibility. Jev answers a handful of small sub-questions per case; the real deterministic engine substitutes those answers into the case state and computes the verdict. Ground truth is the tree's own answer to the same case. See how decomposition works.