Have you tried asking it not to? Claude can be a harsh critic. See the other commenter

See https://arxiv.org/abs/2607.13562. AI tends to make people much more confident in their answers. I worry about this for myself, and therefore try to limit my use of AI to either "getting things done" or idle queries. For developing real thought, I think of it as a very political underling who wants you to think it's valuable.