{
  "tool_id": "art-32-a2a-agent-card-trust-chain-validator",
  "kernel_id": "art-32-a2a-agent-card-trust-chain-validator",
  "display_name": "A2A Agent-Card Trust-Chain Validator",
  "tool_version": "1.0.0",
  "mandate_type": "compliance_mandate",
  "purpose": "The horizontal agent-to-agent trust complement. Validates an A2A v1.0 agent card (schema, signature, extension URIs) then assesses the delegated-authority trust chain into KYA-OS attestation + spend policy: chain depth <= 4, no scope escalation, validity windows <= 90 days. Trust PASS/WARN/FAIL determination + execution_hash.",
  "control_description": "The horizontal agent-to-agent trust complement. Validates an A2A v1.0 agent card (schema, signature, extension URIs) then assesses the delegated-authority trust chain into KYA-OS attestation + spend policy: chain depth <= 4, no scope escalation, validity windows <= 90 days. Trust PASS/WARN/FAIL determination + execution_hash.",
  "declared_inputs": [],
  "declared_outputs": [
    "art-04-agent-identity-attestation-checker",
    "art-02-agent-spend-policy-simulator",
    "ptg-01-ap2-prompt-template-generator"
  ],
  "kernel_digest": "sha256:b559ef728aacf8aa3f1ee6cb9db684bf7b32b917bafcbcacb0cc88c16c76c008",
  "trust_label": "deferred -- deterministic source published, zkVM proof not yet generated",
  "data_vintage": "2026-07-10",
  "last_validated": "2026-07-10",
  "conformance_fixtures_vendored": false,
  "compute_proof_ready": "ready",
  "wave": 6,
  "source_url": "https://ainumbers.co/chaingraph/art-32-a2a-agent-card-trust-chain-validator.html",
  "generated_at": "2026-07-25T20:02:55.601Z"
}