A new managed-config field, mcpToolTimeoutSec, lets an org set a per-call timeout of 60-3600 seconds for MCP tool calls. Cowork/chat already defaulted to 180s, but Code sessions previously had no desktop-imposed MCP timeout; setting this key now gives them one, and the desktop's own request deadlines toward managed and user-added local MCP servers follow this value.
Names in the bundlemcpToolTimeoutSec
Documented inclaude-docs/cowork/changelog
The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.
Confirmed since
Anthropic's documentation has since written up mcpToolTimeoutSec, on Configuration reference.
| <span id="mcptooltimeoutsec" />MCP tool call timeout<br />`mcpToolTimeoutSec` | `integer` | MDM + Bootstrap<br />Added in 1.37937.0 | — | Per-call timeout for MCP tool calls, in seconds. Default 180 (3 minutes). Range: 60–3600. |third-party/claude-desktop/configuration see the edit
One source agreesOne thing we can check says the same as this entry.
Anthropic's documentation agrees
Anthropic's documentation has since written up mcpToolTimeoutSec, on Configuration reference.