Module 3 asks for an evaluation plan before widening scope. Mine: ten briefs, a reviewer scores each 1 to 5 on completeness and sourcing, ship if the average is above 4. Instructor said it is a start. What is wrong with it?
Average hides the failure that matters. One brief that invents a claim is worse than five briefs that are slightly thin. Score the worst case separately and set a floor: no brief below 3 on sourcing, ever.
Ten briefs is enough to start but pick them to cover the failure modes you fear, not the ones that are easy to write. Include a brief with a missing fact and see what the agent does with the gap.
Floor on sourcing plus a deliberately broken brief. That is a much better plan than the one I handed in.