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.
Event batches are sent in one call, removing a mid-batch failure case.
What's wrong with this entry?
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What
The event writer replaces a hand-rolled sequential batch loop, which could report "transport_closed_mid_batch", with a single write call, and its close now accepts a retain option.
Details
Adds take, discard and adopt operations so a successor connection can pick up events that never reached the client.
Evidence
retainUndeliveredClientEvents
Strings lifted out of the shipped bundle, so the claim above can be checked against them.