The floating menu the composer's triggers open: arrow keys move the highlight, Enter or Tab picks, the mouse works too, and items can sit under group headers.

## TLDR

- Focus never leaves the text being typed; the menu reads as a listbox to assistive tech, pointing at the highlighted option.
- With no items it shows the trigger's explanatory note when one is given, and each item can carry a short hint and a hover explanation.

## Before writing SPEC.md files

Read https://raw.githubusercontent.com/brillout/sdd/refs/heads/main/sdd.md
