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 v2.1.246 Home All releases olderv2.1.245 v2.1.247newer
Claude Code v2.1.246

Artifact assets are referenced by their url exactly as returned

Under the hood
Useful2 Signal1
Artifacts

Artifact assets must now be referenced by the exact url returned, not a relative path.

What

Uploading or listing an asset now tells the model to reference it from the page by its url verbatim, rather than as a relative url. The phrase "relative url" is gone from the build, so the url handed back is what must be pasted in.

Details
  • The same text explains that an asset is read or deleted by the id following _blob/ in its url.
  • Applies to every artifact asset upload and listing; no setting involved.
Evidence

reference one from the page by its url verbatim, read or delete it by the id after "_blob/":

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

See this entry in the whole of v2.1.246 →