Yeah I agree, there will always be a need for new code and transformations. But, you should understand the cost of that. That allows you to make a better decision on whether to say yes.

I also think it's OK to say no to the business if the cot outweighs the value. In fact, saying no is an important skill, because it's what allows you to say yes to the most important things (https://zenhabits.net/say-yes/).

And also agree you should ensure you can push code with confidence!