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.
Token counting no longer throws on incomplete blocks
You'll notice
Useful2Signal1
Elsewhere
Token counting handles incomplete blocks instead of throwing.
What's wrong with this entry?
Anonymous. No account, no email.
What
Counting input size across text, thinking and redacted thinking blocks now treats a missing field as zero length instead of reading it directly, so a malformed block cannot break the count.
Evidence
inputTextCharLength
Strings lifted out of the shipped bundle, so the claim above can be checked against them.