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.
Three bundled skills dropped: artifact-explainer, artifact-report and verify
You'll notice
Useful3Signal3
Skills
The artifact-explainer, artifact-report and verify skills are no longer bundled.
What's wrong with this entry?
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What
The artifact-explainer and artifact-report skills, together with their HTML template, and the entire verify skill including its instructions and its CLI and server worked examples, are no longer in the build.
Details
No occurrence of "artifact-explainer", "artifact-report" or the verify skill's text remains, so these are removals rather than files moved elsewhere.
Evidence
name: artifact-explainer
Strings lifted out of the shipped bundle, so the claim above can be checked against them.