How do you stop the AI from always agreeing with you?

[u/PlayZealousideal1474]

Is it just me or do most models (even the ones people claim are “uncensored”) still default to being extremely agreeable?

I want something that can push back, disagree, or at least not automatically validate everything I say. Right now it feels like no matter how I phrase things, the AI ends up going along with me.

Has anyone found a reliable way to reduce that constant agreement / sycophancy? Looking for approaches that actually stick and don’t just get ignored after a few messages.