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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 v2.1.227

/mcp explains servers changed in another session

Use it now
Useful3 Signal2
MCP

/mcp now explains servers that another session enabled or disabled behind your back.

/mcp
What

/mcp now spells out cross-session cases that previously looked like bugs: a server re-enabled elsewhere so your disable did not stick, a server disabled elsewhere that needs a disable then re-enable in /mcp to reconnect, a server disabled elsewhere that is not configured here, and a server still running in this session that will not come back after restart.

Evidence

enable then disable each in /mcp to make it stick

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

See this entry in the whole of v2.1.227 →