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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.

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Claude Code v2.1.219

command_lifecycle telemetry description covers interrupt-driven queue sweeps

Under the hood
Useful2 Signal0
Telemetry

Queued commands can now be marked cancelled when an interrupt sweeps the queue.

What

The internal schema description for queued-command lifecycle states documents a new way a command reaches 'cancelled' and tells exactly-once resenders how to reconcile against it.

Details
  • New cause for 'cancelled': the command was swept by an interrupt carrying cancel_queued:true
  • Resenders should reconcile against the interrupt receipt's cancelled list in addition to their own cancel_async_message responses before resending
  • The named receipt capability string is new in this build
Evidence

swept by an interrupt with cancel_queued:true

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

See this entry in the whole of v2.1.219 →