This is a really cool design, pretty similar to what I've built for implementation planning. I like how iterative it is and that the whole system lives just in markdown. The verify step is a great idea I hadn't made a command yet, thank you!

This seems like it'd be great for solo projects but starts to fall apart for a team with a lot more PRs and distributed state. Heck, I run almost everything in a worktree, so even there the state is distributed. Maybe moving some of the state/plans/etc to Linear et al solves that though.