The odds for mechanoid raids are reduced, they start arriving later and the amount increases at a slower pace. At endgame roughly 30% less mechanoid attacks.
Should be compatible with all mechanoids that are part of the vanilla mechanoids faction, so also mods that add to that faction.
To check if the mod is working:
Enable developer mode
Start a dev quicktest
Go to the dev menu, -> output, -> raid faction sampled
Look for the Mechhive faction row and take note of the percentages
Save the game, disable or enable the mod, load the game
do the same and compare the percentages. With the mod enabled the percentages should be lower