Those tasks are ideal candidates for a completely dark dark software factory, and in that case the factory still benefits from the context combo of the ERD-like specification and all the code. In traditional software development there are a lot of those kind of tasks, so being able to almost completely offload them is no small benefit! But they need to be pretty bounded to be successful, and knowing what will work in that modality is a bit of a judgement call, still, so developers need to manually route things to that system. Bug fixes, UI tweaks, performance enhancements are all reasonable candidate areas.