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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.

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Claude Code v2.1.223

Artifact and frame URLs accept a prefixed slug

You'll notice
Useful3 Signal0
Artifacts

Artifact and frame links that include a readable slug before the id now work instead of being rejected.

What

Links to claude.ai artifacts and frames that include a human-readable slug ahead of the id are now recognized.

Details
  • Both the prod and staging URL patterns gained an optional leading name- segment before the id.
  • URLs like /code/artifact/my-thing-<id> now match instead of being rejected.
Evidence

(?:[A-Za-z0-9_-]*-)?

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

See this entry in the whole of v2.1.223 →