Developers can now provide more granular feedback on response quality via new enum values in GoogleCloudDiscoveryengineV1alphaFeedback.reasons: RELEVANT, COMPREHENSIVE, GOOD_CITATION, and ACCURATE. A significant addition is the modelArmorDisputeInfo field to the GoogleCloudDiscoveryengineV1alphaFeedback schema, referencing the new GoogleCloudDiscoveryengineV1alphaFeedbackModelArmorDisputeInfo schema. This enables users to dispute Model Armor BLOCK or FLAG verdicts, providing expectedLabel, sanitizationResultJson, and templateName.
New schemas ApiservingMcpMcpToolVisibility and ApiservingMcpMcpToolVisibilityFieldVisibility have been introduced, allowing for detailed control over tool and field visibility, including a visibilityEnforcementStrategy (though noted as "DO NOT USE" for now). Finally, the GoogleCloudDiscoveryengineV1alphaProvisionProjectRequest now accepts an optional idpConfig to configure Identity Providers during project setup, influencing ACLs.
