Publishing an artifact with live: true can now bypass thumbnail extraction entirely. When the page declares thumbnails but is a live document, publishing surfaces a dedicated LIVE_DOC_DECLARED_THUMBNAIL_NOTE message instead of extracting one.
tengu_cobalt_plinth_campion Not enough to sayNothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.
This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.257: off
These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.
Read once, for one account on one subscription tier, against v2.1.257. It isn't a statement about your account. What a flag value here can and cannot tell you