ValiFit Constitutional Charters
Five public commitments that constitute ValiFit's contract with users, agents, and regulators. Each charter is a one-line principle backed by a specific enforcement mechanism — a CI test, a database table, or a public verification page — that anyone can inspect.
If a charter is ever violated, the failure is publishable as an incident. If the enforcement mechanism breaks (a test gets disabled, a citation removed), it's an outage — not a feature decision.
Source Sovereignty
Every score, ranking, and number on ValiFit traces to a federal or authoritative open-data source we can cite by URL.
Enforced by: lib/seo/source-citation.
Authorities: FHA, ECOA, OMB Circular A-130
FHA-Safe Methodology
No protected class — race, ethnicity, religion, national origin, sex, familial status, disability — is a factor in any score, recommendation, or routing decision.
Enforced by: __tests__/fha-compliance.
Authorities: FHA (Fair Housing Act), ECOA Section 1002.6, HUD Disparate Impact Standard
Citation Density
Every page presents at least one citable federal source per major claim. No "ValiFit says" without "the federal source said."
Enforced by: Every blurb generator (4 active: property/town/school/hospital) populates citations array.
Authorities: SEC Reg FD (analogue: information equality), FTC Endorsement Guides
Algorithmic Transparency
Every scoring formula is public, every weight is documented, every methodology is reproducible from federal data.
Enforced by: lib/composites/* — one TS file per composite, no compiled binaries, no encrypted weights, full unit-test coverage.
Authorities: NIST AI Risk Management Framework, EU AI Act Article 13 (transparency)
Public Bias Audit (Stream-Only)
Every quarter, ValiFit runs the same statistical bias audit any regulator would run — composite scores correlated against Census ACS protected-class indicators — but we never store the protected-class data. We pull it fresh from the public Census API at audit time, compute correlations in memory, persist only the result matrix, and discard the raw data.
Enforced by: Quarterly cron at /api/cron/bias-audit (vercel.
Authorities: HUD Disparate Impact Standard (24 CFR 100.500), CFPB HMDA Examination Procedures, NIST AI Risk Management Framework, EU AI Act Art 27 (post-deployment monitoring), Fair Housing Act
Lead-Routing Neutrality
No agent receives better leads, higher fit scores, or preferential placement because they paid more. Routing is determined exclusively by Agent Quality Score (AQS).
Enforced by: __tests__/monetization-firewall.
Authorities: RESPA 12 CFR 1024, FTC Section 5 (Unfair/Deceptive), NAR Code of Ethics Article 6
Why constitutional?
The PropTech industry has trained users to expect black-box scoring, hidden lead routing, and opaque pricing dressed up as algorithmic objectivity. ValiFit refuses that pattern by writing the rules down, binding the codebase to them, and publishing the enforcement.
These five commitments are non-negotiable. They are the discipline rules the product must obey regardless of commercial pressure. They are why regulators, brokerages, and serious buyers can trust the output.
Last reviewed and affirmed: 2026-05-08. The charters are versioned with the codebase; a Git history of changes to lib/charters.ts is the audit log.