Opus 4.7 — the two commands that change your workflow
/ultrareview
Runs a dedicated review pass on your changes. Flags what a careful reviewer would catch. Different from /review — it's slower, more thorough, designed for the moment before you merge.
/usage
Shows exactly where your Claude Code usage goes — parallel sessions, subagents, cache hits vs misses, long-context costs. Gives you optimization tips.
Try this
Run /usage right now on your current project. You'll probably find you're running 2-3x more parallel sessions than you need.