The composer's presets button: the one visible place to load, create, and delete preset prompts — typing `/` in the editor stays as the fast path for those who know it.

## TLDR

- Three groups: the built-in presets, your own saved presets, and the open project's shared presets; saved presets load their prompt verbatim, and each saved row carries its own delete.
- Exists because loading used to hide behind typing `/` and deleting lived in a different menu, so a first-time user saw an empty box and no sign that presets exist.
- Some built-ins always run in a session of their own, even when loaded from inside one.

## Before writing SPEC.md files

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