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 v2.1.238 Home All releases olderv2.1.237 v2.1.239newer
Claude Code v2.1.238

MCP retry and reconnect stop when the account changes during backoff

You'll notice
Useful2 Signal2
MCP

MCP retries are abandoned if you switch accounts during the backoff wait.

What

The retry loop for remote MCP servers that failed transiently now snapshots the signed-in account before backing off and abandons the queued retries if it changed, because those rows belong to the previous account. This applies on every retry, with no flag.

Details
  • The loop only re-attempts servers whose remembered connect result was actually discarded, and skips the round trip entirely when none were.
  • The reconnect path captures the account before its retry timer and returns early if it no longer matches.
  • The connector-connect path likewise discards results superseded by a newer attempt.
Evidence

[MCP] Retry: identity changed during backoff, stopping (these rows belong to the previous account)

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

See this entry in the whole of v2.1.238 →