In short, yes. The effort will amortize for a larger team over longer time period.

https://openai.com/index/harness-engineering/

I think writing the instructions for such an agent would be almost as much work as maintaining the wiki and learning your preferences yourself (and both may be coupled intrinsically unless you already manage a large enough notes system). The crucial problem is that the agents lack 1. taste and 2. the ability to know what is good for them. I've bounced off trying these like three times over the last couple of years, twice after Feb 2026, simply because it requires way too much toil that would be better (IMO) put into maintaining your own knowledge base, where at least that toil would result in learning