Use Markdown
Reach for plain .md when the page is mostly headings, lists, notes,
tables, and code fences. That will be most pages.
The shape is simple on purpose.
This site started from two inputs:
catalyst-opsThat led to a docs tree with a few distinct jobs:
foundations/ for enduring conceptsarchitecture/ for system framing and portability ideasrunbooks/ for repeatable operational stepsreference/ for terse lookup pagesexamples/ for Starlight feature demosauthoring/ for the notes that help future-you keep writingUse Markdown
Reach for plain .md when the page is mostly headings, lists, notes,
tables, and code fences. That will be most pages.
Use MDX
Switch to .mdx when you want imported Starlight components like cards,
tabs, steps, file trees, or buttons and they genuinely improve the page.
/authoring/page-templates/.astro.config.mjs.