Flat-looking is not the same as well-drained
Small depressions can collect water even when the drive looks smooth from a distance. Raised shoulders may trap runoff at the edge. Tire tracks can become narrow channels that carry water along the driveway instead of off it.
A crown raises the center relative to the edges; a cross-slope directs water toward one side. The appropriate shape depends on the route, surrounding ground, and safe drainage opportunities. This guide does not specify slopes or dimensions.
Regrading works with what is there
The available material, depth of wear, and condition beneath the gravel matter. Simply smoothing the top may not address a deep rut or a soft area. Ask whether the scope includes recovering displaced stone, reshaping low spots, adding suitable material, and compaction.
The edge is part of the job
Water leaving the surface needs a continuing route. Discuss shoulder buildup, ditches, driveway entrances, and downstream outlets. Regrading that sends water into a new problem area needs reconsideration by a qualified professional.
Bring a little history
Explain when the driveway was last graded, where water remains after rain, and which sections deteriorate first. For shared lanes, include traffic type and access needs. These observations help distinguish routine maintenance from a deeper drainage or base concern.
Illustrative cross section; not a drainage design.