Tool registrar receiving Partner/Groups tools.
Repository-owned B2 client configured with the master key.
Partner auth manager retained for registration signature compatibility.
Server configuration for destructive policy and secret-sink behavior.
Registration controls; registerDurableSecretSchemas forces
the full b2_create_group_member / b2_reserve_trial_create_account schemas
even without an active sink (discovery mode, where execution is guarded
separately) so tools/list advertises real inputs.
Partner API tools — Group management, trial account provisioning, and computer backup management. These endpoints require the admin account to be authorized for the Partner API and a MASTER application key.