Unclear It is not clear which server addresses pass the URL check, so which MCP servers are affected.
MCP servers are outside programs that give Claude Code extra tools. Claude Code closes a connection after three fatal connection errors in a row. For some servers reached over the web, as type http, those errors do not count toward that limit.
This exemption used to apply only when a server-controlled switch, tengu_snug_mist_enabled, was on. That switch is gone. The exemption now applies to every http server whose address passes Claude Code's URL check.
The reconnect behaviour that was held back is now live for matching servers. Their connections are no longer closed after three fatal errors.
tengu_snug_mist_enabled On for this account, and not off by defaultThe flag server returned on for the one account this site reads, and nothing in this release compiles it off by default. The compiled default is shown below, and says which it is when we cannot read one: a fifth of gates compile in a string or a number rather than on or off, and most published releases have no gate table behind them at all. No client can see what the server returns for your account.
This account: on · anonymous baseline: on · compiled default in v2.1.319: not a boolean we can read
These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.
Read once, for one account on one subscription tier, against v2.1.319. It isn't a statement about your account. What a flag value here can and cannot tell you
It is not clear which server addresses pass the URL check, so which MCP servers are affected.