Selecting plan mode now runs through a new classifier check
gate cited by this entry
Gate readings
0
No release here has a gate table behind it for this flag. Most published releases have none at all: the readings exist only for versions the pipeline captured flag state on.
First cited
1
The earliest release whose published evidence quoted tengu_violin_plan_classifier was v2.1.267, 9 Sep 2026. That is the oldest release this project wrote about it, so it is a floor on the name's age and not the release that introduced it. It is not a presence reading: which builds carried the name is the table below.
v2.1.267 – v2.1.31444 builds9 Sep 2026 → 30 Oct 2026 ◆in the build
v2.1.315 – v2.1.3195 builds30 Oct 2026 → 6 Nov 2026 ○not in the build
Build by build
49
One row per release since the first build this name was read out of. Absent means the build was read and the name was not in it, never mined means no bundle for that release was ever archived, and a declared type or a default is only ever what that release's own bundle stated.
Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the feature flag does. All feature flags.
