The "block nonessential services" privacy setting no longer blocks the connector directory (Anthropic MCP registry) lookup. It now covers three outbound fetches instead of four: connector favicons, the artifact-preview iframe, and the MCP Apps widget iframe.
Names in the bundledisableNonessentialServices
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 disableNonessentialServices, on Configuration reference.
| <span id="disablenonessentialservices" />Block nonessential services<br />`disableNonessentialServices` | `boolean` | MDM + Bootstrap<br />Added in 1.2581.0 | `false` | Connector favicons and the artifact-preview and MCP Apps widget ifra…third-party/claude-desktop/configuration see the edit
Added since
A small documentation edit on Telemetry and egress touched a line naming disableNonessentialServices after this was published.
With `disableEssentialTelemetry`, `disableNonessentialTelemetry`, `disableNonessentialServices`, and `disableAutoUpdates` all set to `true`, the desktop application makes **no outbound connections to Anthropic-operated hosts at runtime**. …third-party/claude-desktop/telemetry see the edit
One source agreesOne thing we can check says the same as this entry.
Anthropic's documentation agrees
A small documentation edit on Telemetry and egress touched a line naming disableNonessentialServices after this was published.