--- type: Changed pr: 3039 --- **`/gsd-help` is now tiered** — default output fits one screen, `--brief` gives a 10-line refresher, `--full` keeps the complete reference, `/gsd-help ` jumps straight to one section (e.g. `/gsd-help debug`), and `/gsd-help --brief ` is a compact scoped lookup (signature + one-line summary). Every topic output starts with a resolved-routing preamble so the matched alias and scope are visible. Closes #3039.