SAVE THIS: 10 built-in Claude Code commands you're probably not using /btw: ask a side question without adding it to the conversation /rewind: roll the conversation and your code back to an earlier point /goal: Claude keeps working across turns until a condition you set is met /plan: start in plan mode, so Claude plans before it edits anything /simplify: 4 review agents clean up your changed code in parallel /security-review: checks your branch's changes for injection, auth and data exposure risks /branch: split the conversation to try a new direction without losing the original /context: see what's filling your context window, with tips to free it up /insights: an HTML report on how you use Claude Code and where things go wrong /powerup: quick interactive lessons on features you haven't tried Type / in Claude Code to see the full list.