1 ROOT · D0 node

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

arc_score → agentic commerce 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

paymaster_verdict, sponsorship_breakeven feed Stage 3 CPN economics

MCP Call · model_arc_paymaster_economics

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

3 TERMINAL · D3 node

npv_3yr, cost_per_payment — Exports agentic commerce mandate — final stage

MCP Call · model_arc_cpn_economics

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

Arc Agentic Commerce