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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.

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Claude Code v2.1.222

MCP: rejected claude.ai session token is now visible

Use it now
Useful4 Signal0
MCP

Your MCP server list now flags a rejected login token, and clears the warning once it recovers.

/login/mcp
What

A connected MCP server whose discovery bearer token was rejected now says so in the server list and in the reconnect result, rather than the state being tracked only internally.

Details
  • Message directs you to run /login and then reconnect.
  • A successful tools/list now clears discoveryAuthFailure in both MCP client implementations, so a recovered server stops showing the warning.
Evidence

but your claude.ai session token was rejected. Run /login, then reconnect.

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 v2.1.222 →