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 v2.1.223 Home All releases olderv2.1.222 v2.1.224newer

Parked AskUserQuestion can abort the turn when the control stream closes

Not switched on
Useful2 Signal3
SDK Control

Closing the control stream while a question waits can now cancel the turn, but that path stays off.

Abort-on-stream-close for parked questions exists but only runs when a remote gate reads "interrupt"; the built-in fallback is "off".

Feature flag
tengu_cinder_swift Not enough to say

Nothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.

This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.223: not a boolean we can read

These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.

Read once, for one account on one subscription tier, against v2.1.223. It isn't a statement about your account. What a flag value here can and cannot tell you

What

When the permission stream closes while an AskUserQuestion is parked, a new path aborts the query instead of preserving the park, but it requires a gate value not set in this build.

Details
  • the SDK control-request handler gained a streamCloseInterruptRequestIds set and a setOnStreamClosedWithParkedQuestion hook
  • on stream close with a parked question the callback fires, aborting the current query with reason "shutdown", and the error is rethrown
  • emits telemetry tengu_auq_park_interrupted_at_stream_close
  • gated on tengu_cinder_swift; the path runs only when the value is exactly "interrupt", and the in-source fallback is "off"
Evidence

tengu_auq_park_interrupted_at_stream_close

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 v2.1.223 →