Previously, I'd have an idea, sit on it for a while. In most cases, conclude it's not a good idea worth investing in. If I decided to invest, I'd think of a proper strategy to approach it.
With agentic development, I have an idea, waste a few hours chasing it, then switch to other work, often abandoning the thing entirely.
I still need to figure out how to deal with that, for now I just time box these sessions.
But I feel I'm trading thinking time for execution time, and understanding time for testing time. I'm not yet convinced I like those tradeoffs.
Edit: Just a clarification: I currently work in two modes, depending on the project. In some, I use agentic development. In most, I still do it "old school". That's what makes the side effects I'm noticing so surprising. Agentic development pulls me down rabbit holes and makes me loose the plot and focus. Traditional development doesn't, its side effects apparently keep me focused and in control.