> For the complete documentation index, see [llms.txt](https://manuscript.knightsoftheeditingtable.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manuscript.knightsoftheeditingtable.com/extensions/spell-book/how-it-works.md).

# How it works

#### Automatic start

Spell Book is launched automatically when [supported](/extensions/spell-book/supported-apps.md) Adobe app is opened.

#### Shortcut listening

Spell Book listens for a shortcut press inside host application only (e.g. for [Quiver](/extensions/quiver.md) extension, host application will be Premiere Pro).

If host application is not focused on, shortcut assigned in Spell Book won't trigger a command.

#### Automatic close

When all supported Adobe apps are closed, Spell Book will close itself within 30 seconds.