Code as Infrastructure: Why the RFIA Should Regulate Architecture, Not Developers

The 2026 Responsible Financial Innovation Act (RFIA) introduces a critical "decentralization test" that risks a fundamental category error: treating autonomous software as a custodial financial institution. By imposing Bank Secrecy Act obligations on non-custodial developers, the Act targets the architects of network "language" rather than the actors with functional control. This article argues that such a posture is technically incoherent and constitutionally fragile, threatening to drive capital offshore without enhancing national security. Drawing on analogies from finance and internet protocols, it contends that effective oversight must regulate crypto by architecture rather than by arrest. Congress should instead establish a "Decentralized Protocol Safe Harbor" that aligns liability with technical agency, leveraging cryptographic verification standards to preserve innovation while satisfying regulatory objectives.