{"version":"2.1.207","anchor":"cowritten-artifact-html-security-labeling","canonical_anchor":"cowritten-artifact-html-security-labeling","heading":"Cowritten Artifact HTML: Security Labeling","tier":null,"area":null,"scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.207\/e\/cowritten-artifact-html-security-labeling","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.207","markdown":"### Cowritten Artifact HTML: Security Labeling\n\nArtifacts that include content published by other co-writers are now tagged with `cowritten-artifact-html` and Claude is instructed to treat the tag's contents as untrusted data \u2014 not instructions. A co-writer cannot escalate permissions or modify settings through artifact content.\n\n**Evidence**\n\nCo-written artifact security annotation (search for `\"cowritten-artifact-html\"`)"}