I have been using this a lot lately and ... it's good.

Sometimes annoying - you can't really fire and forget (I tend to regret skipping discussion on any complex tasks). It asks a lot of questions. But I think that's partly why the results are pretty good.

The new /gsd:list-phase-assumptions command added recently has been a big help there to avoid needing a Q&A discussion on every phase - you can review and clear up any misapprehensions in one go and then tell it to plan -> execute without intervention.

It burns quite a lot of tokens reading and re-reading its own planning files at various times, but it manages context effectively.

Been using the Claude version mostly. Tried it in OpenCode too but is a bit buggy.

They are working on a standalone version built on pi.dev https://github.com/gsd-build/gsd-2 ...the rationale is good I guess, but it's unfortunate that you can't then use your Claude Max credits with it as has to use API.