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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 v2.1.229

Auto-mode model selection retries when its classifier model is unavailable

You'll notice
Useful3 Signal2
Models

Auto mode retries instead of failing when the model that routes your turn is briefly unavailable.

What

The model that picks which model handles your turn in auto mode is now retried with exponential backoff and jitter when it returns a retryable unavailability error, for a configured number of attempts, instead of failing on the first one.

Details
  • Each retry is logged and counted under tengu_auto_mode_outer_retry.
Evidence

tengu_auto_mode_outer_retry

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 v2.1.229 →