What
claude doctor checks your installation for problems. It used to read the admin-managed managed-settings.json file and warn when strictPluginOnlyCustomization had an invalid value (anything other than true or a list) or contained values it did not recognize. That check has been removed. The check that warns when otelHeadersHelper failed on its last run is still there.
Why
Admins no longer get this hint from claude doctor, so a mistyped strictPluginOnlyCustomization value will need to be caught another way.
Names in the bundleclaude doctorstrictPluginOnlyCustomization
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 strictPluginOnlyCustomization, on Set up Claude Code for your organization.
| [Customization lockdown](/docs/en/settings-reference#strictpluginonlycustomization) | Block skills, agents, hooks, and MCP servers from user and project sources, so they can only come from plugins or managed settings. Locking skills also…admin-setup see the edit
Confirmed since
Anthropic's documentation has since written up claude doctor, on Continue local sessions from any device with Remote Control.
Claude Code could not reach the feature-flag service to check whether Remote Control is enabled for your account, typically because you are offline or a proxy is blocking the request. Retry once you have network access, or run `claude doct…remote-control see the edit
Added since
A small documentation edit on Code in Claude Desktop on 3P touched a line naming strictPluginOnlyCustomization after this was published.
| `allowedPluginMcpServers` | `strictPluginOnlyCustomization` set to `["mcp"]` together with an `allowedMcpServers` list holding your entries and `allowManagedMcpServersOnly`, whether or not `managedMcpServers` is set. MCP servers bundled …third-party/claude-desktop/code see the edit
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
Whether this check moved somewhere else in Claude Code is not known.
Anthropic's documentation agrees
A small documentation edit on Code in Claude Desktop on 3P touched a line naming strictPluginOnlyCustomization after this was published.
Anthropic's release notes agree
Added a startup notice, and /status and claude doctor entries, listing telemetry variables in a project's settings files that were ignored…