The idea

Smooth writing can be wrong. An answer may turn ‘proposed’ into ‘agreed’ or ‘by April’ into ‘on 1 April.’ Each change can alter the legal point while leaving the prose easy to read.

What to check

Do not use tone as a test of truth. Check each important claim against the source. Ask two questions: Does the source support this claim? Did the answer leave out a fact or limit that changes it?

A model's confidence score is not proof. Nor does a second model's agreement settle the point. Both may repeat the same error.