I run six side projects alone. Two pay rent, four are experiments. Last quarter I tracked where my hours actually went using Toggl: 11% writing code, 9% prompting agents, 38% reviewing what agents produced, the rest on support, billing, and deciding what to build next. The productivity story everyone tells is that solo devs now ship like a team of five. Partially true. I ship roughly 3x the features I did in 2024. But my churn went up too, because I shipped two features users actively disliked. Both were ones I let an agent design end-to-end while I rubber-stamped the PR. The skill that matters is not prompting. It is knowing which 20% of generated output deserves real attention, and being willing to throw away an afternoon of working code because the shape is wrong. I now force myself to write the first version of any user-facing flow by hand, then let agents extend it. The hand-written seed seems to constrain the agent toward something I actually want.