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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 v2.1.221

Whiteboard telemetry parsed out of published page state

Under the hood
Useful2 Signal0
Artifacts

Publishing a whiteboard now counts its elements and pings by reading the page itself.

What

Whiteboard publishes now read the page's own embedded state to report element counts and interaction.

Details
  • Parses the inline <script type="application/json" id="wb-state"> block with a zod schema covering els, pingCount and ping.n.
  • Emits whiteboard_publish with seeded, el_count and is_first_publish.
  • Emits whiteboard_turn with ping_count and el_count when the ping count grows between publishes.
Evidence

whiteboard_publish

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.221 →