1.15 implemented a floor of 0 for base skill values, which effectively broke the mod, as it relied on reducing the base value.

In this version a new, modifier based system is implemented that should enable the mod to work in 1.15.

Added dynamic skill level thresholds that depend on the character's education (replacing the previous constant value of 15)

Cleaned up script

Added decision to remove skill adjustments in case you want to remove the mod.

Original upload.