> ## Documentation Index
> Fetch the complete documentation index at: https://docs.budscollab.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Capabilities

> What BudsCollab apps can request.

Capabilities describe what an app can do. They are reviewed separately from the
UI so a good-looking app cannot smuggle unsafe behavior into a package.

The public capability primitives are:

* `json-render-ui`
* `host-data`
* `connector-read`
* `room-state`
* `collaboration-presence`
* `safe-actions`
* `sandbox-code`

Use the smallest set that fits the app. Writes, external side effects, custom
renderers, and sandbox code all need stronger review evidence than read-only
JSON-render UI.