A contract's current position isn't something to guess at, however well. Most of what looks like an AI problem is actually a structural one: matching an amendment to the clause it changes, tracing a defined term back to its source. Rules-based logic handles that reliably, the same way every time. A small language model (SLM) only earns its place where genuine language understanding is required, and even then, its output gets checked against the source document before it's presented as an answer.