{
      "name": "mortgage-agency-pricing-and-eligibility",
      "domain": "Consumer Lending & Fair Lending",
      "title": "Mortgage Agency Pricing and Eligibility",
      "spec_version": "0.8.0",
      "wave": 38,
      "description": "Gated three-step chain: conforming loan limit check feeds agency eligibility matrix (gate: INELIGIBLE routes to non-conforming referral terminal step; ELIGIBLE continues to LLPA pricing stack). Determines agency deliverability and computes the LLPA cost grid for eligible loans. FHFA CLL 2026 + Fannie/Freddie DU/LPA eligibility + LLPA FNM-2025-11-01.",
      "composer_url": "https://ainumbers.co/chaingraph/chains/mortgage-agency-pricing-and-eligibility.html",
      "regulatory_refs": [
        "12 USC 1454/1717 (FHFA conforming loan limits)",
        "Fannie Mae Selling Guide B3-2-01 (DU eligibility)",
        "Freddie Mac Guide Ch.5100 (LPA eligibility)",
        "Fannie Mae LLPA Matrix effective 2025-11-01",
        "Fannie Mae Selling Guide B3-4.1-02; SEL-2023-07 FTHB waiver"
      ],
      "steps": [
        {
          "tool_id": "art-223-conforming-loan-limit",
          "handoff": "Conforming/super-conforming/jumbo classification feeds Step 2 agency eligibility check"
        },
        {
          "tool_id": "art-222-agency-eligibility-matrix",
          "handoff": "Agency eligibility verdict -- gate routes INELIGIBLE to non-conforming referral, ELIGIBLE to LLPA pricing",
          "gate": {
            "input": "/eligible_flag",
            "rules": [
              {
                "op": "eq",
                "value": "INELIGIBLE",
                "next": "end"
              }
            ],
            "default": "art-221-llpa-stack"
          }
        },
        {
          "tool_id": "art-221-llpa-stack",
          "handoff": "LLPA pricing stack with table_version binding completes the agency pricing and eligibility report -- final stage"
        }
      ]
    }