You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
New FeaturesKind: in v2.1.238,
What probably matters to youSection of the release
What
The instructions Claude follows when building an artifact gained a section on what to do when an idea needs real data or real actions, and it tells Claude to load a named capabilities skill before relying on any of them.
Details
The new section is headed ## When the idea needs real data or real actions.
It names three things as per-user runtime capabilities rather than things the page can just do: live or connected data, acting on the user's behalf from the published page, and handing the viewer a file.
Those capabilities are described as granted by the control plane and declared at publish time, so they are decided outside the artifact's own code.
This is prompt text assembled into the artifact instructions, not a gated feature.
Evidence
This is wired fidelity.
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
