You'll notice
The 'Docs' artifact type now requires the first-party Claude Docs connector to be attached
What
Claude Code now blocks use of the 'Docs' artifact type unless the first-party Claude Docs connector is attached to the session. If it isn't attached, Claude is shown a message telling it to create a page instead of starting from that type.
Why
The Docs artifact type only works when it can pull content through the Claude Docs connector, so this check stops Claude from attempting something that would fail and steers it toward a working alternative instead.