What
The switch controlling whether MCP servers that failed to connect are shown to you now defaults to on instead of off, so unless the server says otherwise you will see connection failures reported.
Details
- The gate is
tengu_surface_failed_mcp_servers; only its local fallback changed, from false to true. - A server-supplied value still wins over the fallback.
Evidence
tengu_surface_failed_mcp_servers
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
Feature flag
tengu_surface_failed_mcp_servers Not enough to sayNothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.
This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.247: not a boolean we can read
Read once, for one account on one subscription tier, against v2.1.247. It isn't a statement about your account. What a flag value here can and cannot tell you