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 v2.1.242 Home All releases olderv2.1.241 v2.1.243newer
Claude Code v2.1.242

Agent-backed mock responders are present but switched off

Not switched on
Useful2 Signal4
Plugin Eval

Mocks could be answered by a prompt instead of a fixed body, but that type is rejected.

Agent-backed mock responders with abort_when are coded behind a constant that is false, so type: agent fails.

What

Mock files can declare a responder that is answered by a prompt rather than a fixed body, with an abort_when: condition, but the code path is behind a constant that is false in this build. Any mocks file using type: agent fails and is told to use a fixed body for now.

Details
  • Supporting machinery ships unreachable: abort_when, the tools: key in _server.md, and a heuristic warning that prose about failing the run does not actually abort it.
Evidence

mocks: agent responder unavailable

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 v2.1.242 →