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 v2.1.251 Home All releases olderv2.1.250
Claude Code v2.1.251

Anchored comments on artifacts now carry a snippet of the surrounding page

You'll notice
Useful3 Signal4
Artifacts Notable not in their notes

Anchored artifact comments now carry a snippet of the surrounding page for context.

Feature flag
tengu_teal_corbel_finial Off by default, switched on for this account

The shipped code defaults this off, and the flag server returned on for the one account this site reads on this version. That is the reading that makes the entry above worth a second look, and it still says nothing about your account.

This account: on · anonymous baseline: on · compiled default in v2.1.251: off

Read once, for one account on one subscription tier, against v2.1.251. It isn't a statement about your account. What a flag value here can and cannot tell you

tengu_teal_corbel_finial
What

A comment attached to a spot in an artifact now gets a short snippet of the page content at that spot, so Claude has context even when the comment does not quote any text. Enabled by the tengu_teal_corbel_finial flag, which defaults to on and can be turned off by remote config.

Details
  • The resolver walks the artifact's rendered page to find the element the comment points at, using an id or a tag plus its position among siblings.
  • It then serialises a short version of that element (tag, attributes, truncated text) and attaches it to the comment thread.
  • With the flag off, threads carry only what the comment itself quoted.
Evidence

tengu_teal_corbel_finial

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

See this entry in the whole of v2.1.251 →