{
      "name": "agentic-payment-protocol-audit",
      "domain": "AI & Agent Governance",
      "title": "Agentic Payment Protocol Audit",
      "description": "A2A agent card validation > Google AP2 mandate building > X402 payload decode/flow simulation > Visa trusted agent protocol inspection: composite agentic payment protocol mandate.",
      "composer_url": "https://ainumbers.co/chaingraph/chains/agentic-payment-protocol-audit.html",
      "steps": [
        {
          "tool_id": "283-a2a-agent-card-validator",
          "handoff": "agent_card_validity and trust_chain_gaps feed Stage 2 AP2 mandate builder"
        },
        {
          "tool_id": "285-google-ap2-mandate-builder",
          "handoff": "ap2_mandate and payment_parameters feed Stage 3 X402 payload simulation"
        },
        {
          "tool_id": "277-x402-payload-decoder-flow-simulator",
          "handoff": "x402_flow_results and payment_protocol_compliance feed Stage 4 Visa TAP inspection"
        },
        {
          "tool_id": "286-visa-trusted-agent-protocol-inspector",
          "handoff": "tap_inspection_report and composite_agentic_payment_mandate — final protocol audit mandate"
        }
      ]
    }