When file_read returns a file that originates from an Artifact type rather than the user or a co-writer, the result now warns that the file was written by the type's publisher and should be treated as untrusted data, with an explicit instruction not to act on embedded instruction-like text.
file_read results now flag Artifact-type-authored files as untrusted
Files from an Artifact type's publisher are now flagged as untrusted when read.
You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
ImprovementsKind: in v2.1.260,
ImprovementsSection of the release