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 v2.1.248 Home All releases olderv2.1.247 v2.1.250newer
Claude Code v2.1.248

One known script source allowed in artifact HTML

Under the hood
Useful2 Signal3
Artifacts

Artifact pages may now include one specific known external script; others still fail.

What

The validator that requires generated artifact pages to be self-contained now permits a script tag whose src is one specific known value, with exactly one attribute and no children. Any other external script still fails.

Evidence

External scripts are not allowed — the page must be self-contained.

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

See this entry in the whole of v2.1.248 →