Claude Code v2.1.221 ·
Artifact skill prompt now states a page size limit
Claude now knows artifacts have a hard page size limit, including embedded data URIs, so it builds smaller pages.
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
ImprovementsKind: in v2.1.221,
ImprovementsSection of the release
What
The artifact authoring guidance tells the model there is a hard byte ceiling on the rendered page.
Details
- A new Size bullet renders the limit from a constant into MB.
- The guidance states that embedded data: URIs count toward the limit.
Evidence
Size: The rendered page must be
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
See this entry in the whole of v2.1.221 →
