Verify human presence or authorized device status during critical agentic flows, covering biometric inherence, device-possession proof, behavioural biometrics, 3D Secure handling and bot-vs-agent discrimination. Use this skill whenever the user mentions agent identity, multi factor, attestation, device possession, behavioural biometrics, 3d secure, liveness, or is working with FIDO2, WebAuthn, 3DS, even if they never say "agent identity and multi-factor attestation" explicitly. Routes live lookups through the Agent-Attestation-API endpoint. Do not use it for unrelated application feature work or general coding questions.