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.
Transcript tail can stop collecting at an API error
Under the hood
Useful2Signal2
Elsewhere
History collection can now stop at an API error so failed-request status is not replayed.
What's wrong with this entry?
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What
The helper that gathers the recent slice of message history gained an option to stop as soon as it hits an API error message, returning an empty result if it had collected nothing yet. It is used to avoid replaying status after a failed request.
Evidence
noStatusAfterApiError
Strings lifted out of the shipped bundle, so the claim above can be checked against them.