One of the first things I do before spending time with a coding agent on generating something is having a pretty long reasoning session where I pressure the agent to find out if the problem I'm solving has been solved before, at all, in any way. Most of the time, it has, and it probably doesn't have utility beyond my own personal education in solving it again.

That seems to be what most of these projects that get accused of being "vibe coded" are doing. Incidentally - there's nothing wrong with writing your own useful utilities, and educational to package these up for distribution/release, but don't be surprised if not another soul in the world finds the particular need you had to be one they share.