Reading a new releasev2.1.251Analysing changes · 2/5Writing the entries · 2/4 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.
New error when attempting to resume a still-running agent: "Cannot resume agent: it is still running. Use TaskStop to stop it first, or wait for it to complete."
Evidence
Agent resume guard (search for "Cannot resume agent")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
