Nothing to try yetTier: how much it should matter to you
2Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
In DevelopmentKind: in v2.1.229,
What probably matters to youSection of the release
A session_context parameter, its missing-context error, and prompt/model capture are behind a latch initialised false.
What
Publishing an artifact gained an optional session_context parameter, an error when it is missing on a first publish, and capture of the prompt that triggered the publish (truncated with a marker) plus the model into the published metadata. It all sits behind a latch that is initialized to false in this build, so the parameter is never offered and the requirement never fires.
Details
Error case is session_context_required on the first publish only
Latch has no code path in this build that sets it true
Evidence
session_context_required
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeFixed /model rejecting Sonnet/Opus 1M for claude.ai subscribers using a custom ANTHROPIC_BASE_URL gateway
