Very early on, there is a Wisdom check option in dialogue with Gale. He *reacts* to this check as if this was a psychic intrusion, however there is nothing indicating it should be anything of the sort. It’s not an Illithid Wisdom check and is available before the game opens tadpole checks; it isn’t a spell, though as I recall, choosing it *looks* like using tadpole powers. His reaction indicates it’s not Insight, but in context, it’s exactly when a character would use an Insight check.
Anyhow, maybe this bit of dialogue is mislabeled and should be a tadpole Wisdom check? Otherwise I don’t see why the MC and Gale are acting like an ordinary Wisdom check is intrusive mind-reading. Or why a human Ranger would even be capable of intrusive mind-reading outside tadpole powers with a simple skill check.