Source Intelligence

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.228 Home All releases olderv2.1.227 v2.1.229newer
Claude Code v2.1.228

Artifact titles must read as names, not summaries

You'll notice
Useful3 Signal2
Artifacts

Artifact titles are now short name-like phrases, with the explanation moved to the description.

What

The Artifact tool's instructions to the model now require a <title> to be a short, distinctive noun phrase, with no generic category label and no name followed by an explainer after a dash or colon. The explanation belongs in the description parameter instead, so published artifacts and gallery cards get shorter, name-like titles.

Evidence

never a name plus an appended explainer after a dash or colon

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.228 →