Source Intelligence

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.

All of v2.1.224 Home All releases olderv2.1.223 v2.1.225newer

Teammate message failures are labelled, and inbox write failures reported

You'll notice
Useful3 Signal2
Cross-Session Messaging

Failed teammate messages now say the recipient was unreachable, including when their inbox write failed.

What

When SendMessage cannot find a teammate, the teammate has left, the roster has duplicate or unreadable entries, the failure is now tagged as not reachable. A new case covers the recipient's inbox write returning nothing, and tells you the message was not sent.

Evidence

Failed to write to ${e}'s inbox \u2014 nothing was sent. Try again, or message the lead.

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.224 →