Expandable, Icon, Tooltip, Update

Expandable

titlestringrequired

The summary line.

defaultOpenbooleandefault: false

Renders expanded.

Children: rich content.

Expandable is a single disclosure with no group container. Use Accordion inside an AccordionGroup when several disclosures belong together; use Expandable for a lone one — typically a nested object’s fields under a ParamField.

Icon

iconiconrequired

Which icon to render. Reed’s prop is icon, not name.

labelstring

Accessible label. Supply one whenever the icon carries meaning rather than decoration.

No children.

Tooltip

tipstringrequired

The hover text.

Children: inline content — the text the tooltip attaches to.

mdx

Set <Tooltip tip="Milliseconds since the Unix epoch">`createdAt`</Tooltip> on every event.

Tooltip text is not reachable on touch devices and does not survive being printed or copied. Never put information a reader needs there — only information that saves a reader a lookup.

Update

labelstringrequired

The version or date this entry covers.

descriptionstring

One-line summary of the change.

Children: rich content — the entry body.

mdx

<Update label="0.2.0" description="Offline builds">
  `reed prefetch` now populates a pinned store, and `build` runs with no network.
</Update>

Useful for release notes and version-stamped entries anywhere on a page.

Note that it is not what drives a changelog page’s structure. A page whose frontmatter sets type: changelog is laid out from its date-shaped ## headings — ## 2026-08-05 — and a date-shaped heading naming an invalid calendar date is reported as a diagnostic. Update is a presentational element you may use inside such a page, not the mechanism behind it.