Diagnose a missing RPC command from a Core Lightning plugin
A plugin executable can be present on disk while its RPC method is unavailable. Check whether the daemon initialized that plugin and registered its method.
Check the running plugin inventory
The list includes dynamic and non-dynamic plugins. Then ask the local daemon for help on the specific method expected by the integration, such as the Bookkeeper balance command.
lightning-cli plugin list | jq '.plugins[] | {name, active, dynamic}'
lightning-cli help bkpr-listbalances
Decide which layer to inspect
An absent plugin points to discovery or startup configuration. active false points toward initialization. If the plugin is active but the method is missing, check the installed version and its advertised commands. The dynamic flag describes restart capability and does not certify method availability.