Function drive_standalone_lifecycle 

async fn drive_standalone_lifecycle(
    atlas: &mut AtlasClient,
    before: &ProviderRegistrationSnapshot,
    expected_provider_id: &str,
    expected_driver_contract: &str,
    allow_shared_driver_upgrade: bool,
    config_json: String,
) -> Result<()>

Wait for exactly one new provider, verify that it declares the driver contract from this package manifest, then drive INIT and (except for skills) ACTIVATE. Contract verification is mandatory before any config is sent, so a provider exposing a different lifecycle cannot receive this package’s configuration. Concurrent starts of two instances with the same driver contract still require a future registration token for full identity correlation.