External Reader Protocol: Calibration, Downgrade Rules, and Public Use of Structural Intelligence

This paper develops an external-reader protocol for Structural Intelligence (SI), addressing the problem of how a philosophical framework can become publicly usable without degrading into a style of persuasive diagnosis. SI’s core terms—coherence, contact, answerability, burden, witness, repair, and revision—are powerful enough to illuminate systems under pressure, but also powerful enough to be imitated. The central risk is therefore SI-theater: structural-sounding judgment that lacks the evidentiary discipline needed to make the judgment answerable. The paper proposes a public-use protocol built around a minimal runtime sheet, claim-status ladder, downgrade rules, reader-capture safeguards, calibration cases, a falsification registry, and a public translation layer. It argues that every strong SI reading must declare its domain, object of read, observations, inferences, missing information, falsifier, cost bearer, revision trigger, witness or trace, claim status, and output state. The contribution is methodological rather than doctrinal: it does not expand SI into another domain, but makes the framework harder to misuse. A strong framework is not only one that can interpret; it is one that can stop interpreting when evidence does not hold, route repair before exposure when contact-load would harm, and revise its own method when reality pushes back.