You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.323,
ImprovementsSection of the release
What
An MCP server is a connection that gives Claude extra tools. When something asks for an MCP server by name and it cannot be found, the error used to blame only the plugin's manifest (the file describing what a plugin provides). It now reads "Neither this plugin's manifest nor /mcp lists an MCP server named", followed by the name.
Why
The message points to both places a server can come from, so you know to check /mcp as well as the plugin.
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeFixed /mcp and /plugins opening an MCP server's page with the cursor on "Disable" when the server needs authentication but still holds its…
