# NUIF

> A neutral interface format that makes round-trip fidelity measurable.

- Group: Research
- Repositories: refpath/nuif
- Repository: https://github.com/refpath/nuif
- Documentation: https://refpath.github.io/nuif/

An open interchange model for authored interfaces moving between design tools, source code, runtimes, and agents. Stable identity and semantic operations preserve editability, while *explicit loss records reveal what each adapter could not carry across a boundary*. A deterministic Rust engine and conformance work turn fidelity into something testable rather than a visual judgment. The opportunity grows as autonomous systems begin editing real product interfaces across incompatible tools.

*Loss made visible, fidelity made testable.*