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 v2.1.225 Home All releases olderv2.1.224 v2.1.226newer

Artifact comment replies can declare that they answer a summon

You'll notice
Useful2 Signal0
Artifacts

A reply to an artifact comment can mark itself as answering a summon, and only once.

What

Comment posting accepts an answersSummon flag; when set, the POST body carries answers_summon: !0 so the server knows the reply resolves an outstanding summon.

Details
  • A one-shot claim registry keyed by artifact slug validates the declaration against the expected thread id and tool-use id.
  • The claim is marked consumed once used, so a given summon can only be answered once.
Evidence

answers_summon

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

See this entry in the whole of v2.1.225 →