The QO Architecture Guide currently refers to maxWorks as some value around ~10K. This is true for "small" collections, but the value is actually defined as:

max(10K, 0.3 * collection_size)

This should be updated for greater specificity with internalQueryPlanEvaluationWorks and internalQueryPlanEvaluationCollFraction.

https://github.com/10gen/mongo/blob/e60552830a722dc52422f39bf6be407933934392/src/mongo/db/exec/trial_period_utils.cpp#L44-L55