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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 4 Aug 2026

MCP server list shows a token-rejected state

You'll notice

Useful3 Signal0

MCP

The MCP server list now shows a distinct line when a server failed because your session token was rejected.

What

In the MCP status UI, a server that is connected but whose discovery failed because the claude.ai session token was rejected gets its own line rather than the generic tools-fetch-failure line.

Details

rendered only for the bearer-rejected case; other discovery failures keep the existing wording

Evidence

connected · session token rejected

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 →