All commands

Every command page follows the same order: summary and safety rating, what it does, why it exists, when to use it, when not to, syntax, examples with real output, expected result, common mistakes, how to undo or recover, the equivalent in VS Code and IntelliJ, related commands, and the lessons that teach it.

Safety ratings: Safe cannot lose work · Careful can lose uncommitted work or confuse teammates if misused · Dangerous rewrites or deletes history — read the page before running it on a shared branch.