AI architecture review

Most AI system choices are reversible in an afternoon. Four are not. This skill checks those four first, then walks the planes for anything unowned.

Run it against a real codebase. Every check below names something you can grep, measure, or point at. If you cannot produce the evidence, the check fails — an architecture review with no evidence is an opinion.

Step 1 — the four decisions

Work these in order. Each one asks for evidence, not a judgement.

1. Where does the model call go?

The question is not which model. It is whether exactly one place in the system knows a model provider's name.