A panel that attacks your decision before anyone else does.
State a decision and four or five advisors — the CFO, the Operator, the Board Skeptic, the Customer, and others from the bench — each take one shot at the weakest load-bearing part of your argument. Your own words come back marked up with what was hit, and you can pull any advisor into a one-on-one and fight with them.

A single critic converges on generic critique because nothing forces it to be specific. A panel forces specificity structurally: each advisor has a distinct incentive, a distinct body of knowledge, and an explicit list of moves it's forbidden to make, so they can't all produce the same mush.

The load-bearing part of the design is the protocol every advisor must follow. Each hit has to name the exact claim it attacks and name a concrete piece of evidence that would change the advisor's mind. You can't write a falsification test for "have you considered the risks", which is precisely the point.
A web app and a terminal command share the same advisor specs, output contract and casting rules. Tuning an advisor changes both at once.