Reading a new releasev2.1.251Analysing changes · 2/5Sorting the findings · 1/4 steps470 findings$18.91 so far
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.
When the model's tool call cannot be parsed, a clearer error message is now returned: "The model's tool call could not be parsed (retry also failed). Your tool call was malformed and could not be parsed. Please retry."
Evidence
Error message (search for "model's tool call could not be parsed")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
