I've played around a bit with the plugins and as you've said, plan mode really handles things fine for the most part. I've got various workflows I run through in Claude and I've found having CC create custom skills/agents created for them gets me 80% of the way there. It's also nice that letting the Claude file refer to them rather than trying to define entire workflows within it goes a long way. It'll still forget things here and there, leading to wasted tokens as it realizes it's being dumb and corrects itself, but nothing too crazy. At least, it's more than enough to let me continue using it naturally rather than memorizing a million slash commands to manually evoke.