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.