Under the hood
Artifact-type listings can now omit the closing 'how to read this' instructions
What
The function that formats a listing of artifacts of a given type now takes a second on/off setting controlling whether the closing guidance ("read the one you use by its link…" plus a tip about the default artifact) is included. It also separately marks listings that contain artifacts whose URL shows they weren't authored by the current user.
Why
This lets Claude Code show a plain list of artifacts without the extra usage instructions when they aren't needed, and keeps track of listings that mix in artifacts made by someone else.