At work, we use Claude Code with superpowers which organizes most work into planning followed by review followed by implementation and superpowers applies a fairly high level of scrutiny at every step. It's really quite effective, I don't generally read the code that comes out. In that workflow I have never used plan mode. I don't know what I'd use it for.
On my hobby projects I use Antigravity CLI and almost always start with /plan. This is a builtin skill - not a mode. It generates a plan artifact that I review and approve. Once approved the implementation speed is uncanny compared to Claude.
I tried using superpowers with Antigravity CLI but that slowed the agent down considerably without much benefit (plan quality was much worse).
On my hobby projects I use Antigravity CLI and almost always start with /plan. This is a builtin skill - not a mode. It generates a plan artifact that I review and approve. Once approved the implementation speed is uncanny compared to Claude.
I tried using superpowers with Antigravity CLI but that slowed the agent down considerably without much benefit (plan quality was much worse).