{
      "tool_id": "art-01-ap2-mandate-chain-validator",
      "tool_version": "1.0.0",
      "display_name": "AP2 Mandate-Chain Validator",
      "mcp_name": "validate_ap2_mandate_chain",
      "mandate_type": "payment_mandate",
      "wave": 1,
      "gpu": false,
      "url": "https://ainumbers.co/chaingraph/art-01-ap2-mandate-chain-validator.html",
      "description": "Validates AP2 v0.2 Intent→Cart→Payment mandate trio: signature-chain integrity, scope/limit consistency, TTL/expiry, over-spend detection, Human-Not-Present autonomous-agent flows. Publishes conformance test-vector fixtures.",
      "input_schema_ref": "chaingraph/art-01-ap2-mandate-chain-validator.html#manifest",
      "deadline": null,
      "deadline_note": "AP2 v0.2 live (FIDO Alliance, April 2026) — reference-implementation positioning",
      "consumes": [],
      "feeds": [
        "art-02-agent-spend-policy-simulator",
        "art-03-x402-settlement-modeler",
        "art-04-agent-identity-attestation-checker",
        "art-12-acp-checkout-conformance-validator",
        "ptg-01-ap2-prompt-template-generator"
      ],
      "status": "live",
      "conformance_fixtures": true,
      "compute_capability": "server",
      "compute_images": [{"system":"sha256-source","image_id":"sha256:623495f9378cb65cb88c889831f43c2c82c8844af29dfaa32e3a5d1e6cfa5337","valid_from":"2026-07-10"},{"system":"risc0","image_id":"sha256:a1a0bc89b5b1febaeda3519f6dbade0fa5ac16beeb143c4e1b01689573567bc6","valid_from":"2026-06-28"}],
      "compute_proof": {
        "type": "ZkVmReceipt",
        "system": "risc0",
        "receiptFormat": "groth16-bn254",
        "imageId": "sha256:a1a0bc89b5b1febaeda3519f6dbade0fa5ac16beeb143c4e1b01689573567bc6",
        "seal": "AQ72rBHEnZFOtvGUoeAKOoMtDYLqWl6i7kjE7i7c6WMMW15EyN2eBXpAmlFKXs0z92M2uwpf1ExCoPpCWqB7ShBWmhQOypS98fYJS9oXKdgx7w+jqM0eW5tkhTayymzeD+N3i47caYUtXgLoaP1VHUZ0+p7JEpgctlUlo4/QgFkusP837RSoulGH79VFOOn/cM6NMYrYcaXxAXRgDVKT1Ac5/shSri6CoU60nJg2sz/2VvUQc5oDmTr5+QFixktjIQQ/ALLv/jnoHXoIVrReVkzVRJEZ+CeWoMJyYMK/K4sUn10UezjwneyiXOEJeCm8eba56vo3hn4e5D29Zym1ew==",
        "journal": {
          "chaingraph_version": "0.4.0",
          "kernel_digest": "sha256:623495f9378cb65cb88c889831f43c2c82c8844af29dfaa32e3a5d1e6cfa5337",
          "output": {
            "checks_run": 8,
            "failing_checks": [],
            "has_cart": true,
            "human_not_present": false,
            "mandate_ids": {
              "cart": "crt-001",
              "intent": "int-001",
              "payment": "pay-001"
            },
            "validation_verdict": "PASS",
            "warning_checks": []
          }
        }
      },
      "export_capability": [
        "xlsx",
        "csv",
        "pdf",
        "xbrl:ocg-ext"
      ]
    }