CoI Hub automatically scans each mod's code and lists what it does below. These capabilities can have legitimate uses, but caution is advised, especially with mods from authors you don't already trust.

Accesses filesystem

This mod reads or writes files outside the mod's own directory. Could be for legitimate save-game integration or for reading/writing arbitrary user files.

Uses Harmony

This mod uses HarmonyLib to modify game code while it's running. The actual effects of a Harmony mod cannot be fully verified ahead of time — installing one requires trusting the author.