CFDL

Domain Packs

A pack is a domain library for CFDL: it ships contract templates, validations, and industry metrics so a model declares business terms (rent, PPA price, CPR) instead of hand-building every stream. Every pack is gated by a benchmark parity suite against independent Excel-grade reference models.

What a pack gives you

  • Contract templates — declare contract cre.lease { ... } with the pack's term vocabulary; the compiler lowers it to fully-specified streams.
  • Validations — missing or inconsistent terms fail at compile time with precise diagnostics, not at run time.
  • Domain metrics — each pack declares its own metric set (e.g. DSCR, NOI, collections multiple, exit proceeds) computed alongside the core NPV/IRR/MOIC/payback/WAL metrics.

The four packs

PackDomainGuide
energyRenewables & project finance: PPA/merchant revenue, storage, ITC/PTC, MACRS, debt serviceEnergy pack guide
creCommercial real estate at institutional DCF fidelity: lease-by-lease, rollover, recoveries, exit on forward NOICRE pack guide
creditLoan pools: CPR/CDR, severity, recovery lag, floaters off rate curves, purchase pricingCredit pack guide
opcoOperating businesses / LBO: working capital, capex, term debt, cash taxes, trailing-EBITDA exitOpCo pack guide

Using a pack

version 0.1
model "office_deal"
use pack "cre" version "0.1.0"
time calendar monthly from 2026-01 for 120

entity real_estate property

contract cre.lease {
  term 2026-01..2035-12
  terms {
    base_rent = 25000
  }
}
Open in playground

Compile with the packs directory available (--packs packs/ from a checkout, or the packs bundle from a release), and pass --pack cre at run time to compute the pack's domain metrics.

Going deeper