1 ROOT · D0 node

Arc Fit Diagnostic art-42-arc-fit-diagnostic

arc_score → DvP dimension primary

MCP Call · run_arc_fit_diagnostic

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "run_arc_fit_diagnostic",
    "arguments": {}
  },
  "id": 1
}

2 D2 node

pvp_verdict, herstatt_saved feed Stage 3 Paymaster economics

MCP Call · model_arc_stablefx_rfq

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "model_arc_stablefx_rfq",
    "arguments": {}
  },
  "id": 1
}

3 TERMINAL · D3 node

paymaster_verdict, cost_per_uop — Exports DvP settlement mandate — final stage

MCP Call · model_arc_paymaster_economics

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "model_arc_paymaster_economics",
    "arguments": {}
  },
  "id": 1
}

Arc DvP Atomic Settlement