GFM Compatibility

Astro’s Markdown pipeline supports common GitHub Flavored Markdown features, including tables, task lists, strikethrough, and autolinks.

Core GFM examples

Feature	Example	Result
Table	This table	Supported
Task list	Checkboxes below	Supported
Autolink	https://starlight.astro.build/	Supported

• Render a task list
• Keep one task open

This is removed text and the bare URL above is linked automatically.

GitHub Alerts

The exact GitHub blockquote marker is not styled as an alert by Starlight without an additional remark plugin:

[!NOTE]

This is intentionally the raw compatibility test.

Starlight’s supported equivalent is the Aside component (also available as Markdown directive syntax):

Note

Supplementary context.

Tip

A useful shortcut.

Important

Information readers should not miss.

Warning

Something may behave unexpectedly.

Caution

An action needs extra care.

The visual result is strong, but authoring compatibility with all five GitHub Alert markers is therefore partial, not native.