astro/.changeset/eleven-planes-deliver.md

---
'astro': patch
---

MarkdownInstance: Persist frontmatter type into the return of `.default()`
Fix unintentional missing type data in `MarkdownInstance` (#3397) * Update MarkdownInstance type The return of the `default` function includes the same `frontmatter` data as the parent object, merged with the `astro` data. The inclusion of that frontmatter type was previously not recognized by TS, and fell back to a `Record<string, any>`. This change persists the more accurate type, as the runtime code does. * fixup! Update MarkdownInstance type (This change is what I'd personally do, but I don't really know how you expect people to use `MarkdownContent` in practice, or if there is some deeper benefit you wish to exploit by leaving it as an interface instead of a type. 2022-06-14 20:20:13 +00:00			`---`
			`'astro': patch`
			`---`

			MarkdownInstance: Persist frontmatter type into the return of `.default()`