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 v2.1.222 Home All releases olderv2.1.221 v2.1.223newer

Tunnel sockets are destroyed on protocol violations

You'll notice
Useful2 Signal0
Elsewhere

Misbehaving tunnel connections are torn down properly instead of leaving stuck half-open sockets behind.

What

The local tunnel now treats data arriving before HELLO_ACK as a protocol error and tears the socket down.

Details
  • Error and close paths destroy the socket rather than half-closing it.
  • This applies whether or not the connection negotiated v2, so a stuck half-open socket is no longer left behind.
Evidence

server sent data before HELLO_ACK

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

See this entry in the whole of v2.1.222 →