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 v2.1.238 Home All releases olderv2.1.237 v2.1.239newer
Claude Code v2.1.238

Whiteboard skill copes with the server rewriting published pages

You'll notice
Useful2 Signal3
Artifacts

The whiteboard skill now copes with server-rewritten pages and stops safely when it cannot read state.

What

The whiteboard helper now expects the server to add a 16-character id attribute to every open tag on a published page and matches the state and title tags accordingly, and decodes the numeric character entities the server writes. A page whose state block carries attributes it cannot safely read stops the write-back and tells you, distinct from a page that was simply read short.

Details
  • The prototype skill now names the artifact "verify" action as the one sanctioned check to run after publishing, and warns that an empty result is not evidence the demo works.
Evidence

dataIdAttrLen in the CLI

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

See this entry in the whole of v2.1.238 →