It seems unsurprising that if your definition of "plan mode" is as tiny as appending "but don't write code yet", that it would not be that useful for that long. There have to be more sophisticated versions of what "plan mode" means out there.
Also if you are working in a heavily vibe-coded codebase, as Claude Code reportedly is, it's not that surprising if the human doesn't really understand it or have anything useful to add in a collaborative context.
Also if you are working in a heavily vibe-coded codebase, as Claude Code reportedly is, it's not that surprising if the human doesn't really understand it or have anything useful to add in a collaborative context.