app = Goblet(function_name="test-function")
goblet_entrypoint(app)

error_alert = Alert(
    "test-alert",
    conditions=[LogMatchCondition("error", filter="severity>=ERROR", replace_filter=True)],
)
app.alert(error_alert)

goblet deploy -l us-central1 --skip-backend --skip-handlers --skip-infra

deploying the alert does not generate output or notify that the alert will not be deployed unless the alert_type is specified
updating this value to a valid value resolves this

error_alert.alert_type = "handler"

INFO:goblet.deployer:created alert: test-alert