{
      "name": "rtp-participation",
      "domain": "Cross-Border & Instant Payments",
      "title": "Real-Time Rail Participation",
      "description": "Score FedNow/RTP participation readiness, check network rules, size intraday credit, and build the AP2 policy mandate.",
      "composer_url": "https://ainumbers.co/chaingraph/chains/rtp-participation.html",
      "steps": [
        {
          "tool_id": "255-fednow-participation-readiness-scorer",
          "handoff": "readiness_score and gap_items feed T229 RTP network rule check"
        },
        {
          "tool_id": "229-rtp-network-participation-checker",
          "handoff": "rule_compliance and membership_flags feed T258 intraday credit sizing"
        },
        {
          "tool_id": "258-intraday-credit-facility-sizer",
          "handoff": "credit_requirement and peak_exposure feed T259 AP2 policy build"
        },
        {
          "tool_id": "259-ap2-rtp-policy-builder",
          "handoff": "Exports RTP participation Policy Mandate -- final stage"
        }
      ]
    }