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 v2.1.251 Home All releases olderv2.1.250
Claude Code v2.1.251

Diagnostics for tunnels that drop mid-transfer

You'll notice
Useful2 Signal2
Elsewhere

Tunnels that drop mid-transfer now log byte counts and say resets are expected.

What

Connections tunnelled through the agent proxy that close partway through an exchange now record how many bytes moved, how many were pending and whether the client was paused, and report a debug message. The troubleshooting notes shown to the agent when a proxy tool call fails now explain that resets and RPC failures mid-transfer are expected once a tunnel is up.

Details
  • Telemetry fires unconditionally on this failure path.
  • The docs point at the recent relay failures list and the proxy status endpoint rather than at retrying.
Evidence

agent_proxy_request_ws_closed_mid_exchange

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

See this entry in the whole of v2.1.251 →