Signal Register

Technology / Scanner Notes

The quiet case for software that can be read by machines

A console-native argument for interfaces that leave a clean trail: fixed pitch, visible state, and no theatrical glow beyond the signal.

Mara Voss 14 Feb 2026 8 min read

I spent two weeks last winter rewriting our publishing console so every ticket, slug, and checksum lined up on a fixed grid. The change looked severe at first, but by the third morning the editors were finding broken fields before the validator did.

Legibility is an operations feature

Machine-readable design is not nostalgia; it is a contract. When the interface uses one rhythm for people and parsers, handoff becomes visible, audits become calmer, and every midnight deploy carries fewer hidden characters.

This is the OCR-B Machine Readable design system, applied by Curio — a design-style library for AI agents. Full OCR-B Machine Readable guide → designbycurio.com/learn/ocr-b-frutiger-1968