You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.292,
ImprovementsSection of the release
Unclear Which servers mcp_call now refuses is not stated.
What
MCP servers are add-on servers that give Claude Code extra tools. When a program using the SDK sets the MCP servers with mcp_set_servers, Claude Code no longer decides through a remote switch whether to delay connecting to them.
Separately, mcp_call now refuses calls to some servers with a fixed error message.
Why
Programs that embed Claude Code may see MCP servers connect at a different point during startup, and some MCP calls return an error where they did not before.
Read from
Names in the bundlemcp_set_servers
Feature flag
tengu_ptc_enabledNot enough to say
Nothing 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 v2.1.292: on
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.
