Are you thinking of the /effort level in Claude Code? I would just go with xhigh as a reasonable default. Most important thing in prompting is specifying what "done" and "success" looks like to you. Ask Claude to help you come up with a well formed request and spend most of your time on that, then paste that into a brand new session.
No more like is there a specific slash tool to be using when coding or planning. I guess that’s just Claude code in general but since there’s a specific review tool I was curious about specific coding tools