You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
MCPArea: what it touches
Bug FixesKind: in v2.1.219,
Bug FixesSection of the release
What
The two /mcp reconnect failure messages no longer interpolate a raw error string.
Details
Covers "Tried reconnecting to …, but the connection failed:" and "Got new credentials, but reconnecting to …", both assembled at runtime.
The extracted error now passes through the shared display sanitizer, which NFKC-normalizes, strips angle brackets, quotes and assorted bracket characters, collapses whitespace, and truncates with an ellipsis at 200 characters.
Evidence
Reconnection failed after authentication
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeAdded HTTP status and error text to claude mcp list and /mcp when a server fails to connect, and a warning for MCP config values with hidden…
