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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 v2.1.248

Auto-reply composition is now time-bounded and retry-aware

Under the hood
Useful2 Signal3
Artifacts not in their notes

Auto-replies to artifact comments share the edit deadline and stop blaming API retries for slowness.

composeDeadlineMsOverride
What

Composing an automatic reply to an artifact comment now has the same deadline as composing an edit, and both read the same override key composeDeadlineMsOverride instead of the edit-only one. Neither now reports a failure when the only reason it ran long was an API retry.

Details
  • Timeout telemetry gained a request_delayed field, and a new reply_compose_timeout event covers the reply path.
  • An edit compose that timed out purely because the request was being retried returns nothing rather than a timed_out decision, so no failure reply is posted.
Evidence

reply_compose_timeout, composeDeadlineMsOverride, request_delayed

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

See this entry in the whole of v2.1.248 →