Claims are like contract terms. If it is poorly written, it means that the contract terms say: I voluntarily spend money to disclose my technology and provide it to the people of the whole country for free. Therefore, the writing of the claims is very important.
The writing of the patent claim is a very professional matter, and it depends more on the inheritance of experience, so it is difficult to say clearly. If you are an inventor, what you should consider most is how to explain your technical scheme (including substitutability) to the agent so that he can understand; If you are not clear about the matters needing attention in patent application, find a reliable patent agency.
Patent application, you can ask for special notice.