I'm still confused about the things I'll be slower in though, and I'm being sincere with that confusion. If it's "boilerplate", then I haven't done enough research or pick a library which has little to none of that, or I'm not using the template(s) built into whatever framework I am using.

For example, in one of the projects I'm working on, I'm using the VSA pattern. I have the list of 50 to 75 features I need to implement and what "categories" they slot into, I have all of the frameworks and libraries picked out, and I have built out "feature templates" with all of the boilerplate setup (I'm reusing these over multiple projects going forward). for each of the features all I need to do is

'ftr new {FEATURE_TYPE} {FEATURE_NAME} {OUTPUT_FOLDER}'

and then plug int the domain specific business logic.

I'll most likely use Claude/Codex/Whatever to write out some of my tests, but the majority of the 'boilerplate' is already done and I'm just sorting out the pieces that matter / can't be automated.

Am I missing something huge with these tools?

Don't get me wrong, for doing reverse engineering they're great helpers and I've made a tonne of progress on projects that had been languishing.