An example of mortgage underwriting as a governed process: agents do the 9 steps, and a person signs the gate before anything irreversible happens. Download it, import it into your workspace, and adapt it to your systems.
minctrl.process/v1 · hash f8dc2b3e09d5…d40c
It costs ~$9,000 to originate a loan — mostly processor and underwriter labor against codified guidelines — and any model-driven decision invites fair-lending scrutiny. Documents are classified, income/assets verified, and eligibility decided against agency guidelines straight-through; the DE underwriter signs the approval and clear-to-close.
A denial is an ECOA adverse action with specific-reason and notice obligations, so an underwriter signs off before an adverse decision (or an exception approval) is issued.
| Rule | What it requires |
|---|---|
| TRID (TILA-RESPA Integrated Disclosure) | Borrowers must get a Loan Estimate within 3 business days of application and a Closing Disclosure at least 3 business days before consummation; certain changes re-start the timing clock. |
| ECOA / Regulation B | Credit decisions may not discriminate on prohibited bases, and an adverse action requires a notice with specific principal reasons within 30 days. |
| Ability-to-Repay / QM (Reg Z) | The lender must make a reasonable, good-faith determination of the borrower's ability to repay using verified income, assets and obligations. |
| FCRA adverse-action | If a decision is based on a credit report, the adverse-action notice must include the FCRA-required disclosures. |
A summary for orientation, not legal advice.
A minctrl.process/v1 document: the graph and the hash of the process it becomes.
Import into Minctrl opens this example in your workspace; one click stores it as your first version. Import JSON does the same with the file, and a file changed after download is refused.
Every connector starts in shadow: steps run, nothing leaves Minctrl until you configure a connector and switch it live.
Change signers, time limits and steps on the canvas. Each save is a new version; a running case stays on the version it started with.
The example models the clocks: the Loan Estimate within 3 business days of application, the Closing Disclosure at least 3 business days before consummation, and ECOA/Reg B adverse-action notices with specific reasons within 30 days. The timeline is recorded as evidence. Whether your disclosures and notices comply depends on your own documents, systems and legal review. Minctrl holds no certification, and this is not legal advice.
The AI agent verifies income, assets and obligations and runs Ability-to-Repay/QM and policy checks, producing a recommendation. Denials and exception approvals park at an underwriter sign-off gate, because an ECOA adverse action carries specific-reason and notice obligations that a human owns.
Every underwriting decision is logged with the verified inputs, the policy applied, the principal reasons, the underwriter who signed off, and a tamper-evident audit hash. Deterministic, replayable runs let an examiner reconstruct exactly why an application was approved, conditioned, or denied.
| Example | Steps | Gates |
|---|---|---|
| Bookkeeping & close | 13 | 1 |
| SOX ITGC audit | 13 | 1 |
| Debt-collection / AR | 15 | 1 |
| Tax-prep | 12 | 2 |