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 v2.1.239 Home All releases olderv2.1.238 v2.1.240newer
Claude Code v2.1.239

Remote Control bridge sessions reject foreign --mcp-config entries

You'll notice
Useful3 Signal4
Remote Control

Remote Control bridge children reject foreign --mcp-config servers and rebuild the meta server themselves.

--mcp-config
What

A session running as a Remote Control bridge child now drops dynamically supplied MCP servers unless the entry is the Remote Control meta server, and rebuilds even that one from the approved startup address and session id instead of trusting the file. There is no flag: this applies whenever the process is a bridge carrier child.

Details
  • Five reasons are reported per rejected server, surfaced as warnings with a skip reason: the entry is foreign, the meta entry is not of type http, its URL does not match, no approved startup address exists, or no session id exists.
  • A startup notice tells you MCP servers come only from the verified startup config.
Evidence

was not loaded: the Remote Control meta server entry must be type "http"

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 v2.1.239 →