> as a senior engineer, most of the stuff you do shouldn’t be stuff that an LLM is good at to begin with

Your use of the word "should" is pointing to some ideal that doesn't exist anymore.

In current actual reality, you do whatever your employer gives you to do, regardless of your job title.

If you have 40 years of broad development experience but your boss tells you to build more CRUD web apps or start looking for another job in the current ATS hell, then the choice whether to use coding agents seems obvious to me.