The instrument reads any AI response, argument, or decision through six structural constraints and returns a chord — a harmonic shape revealing not just whether the answer is plausible, but whether it is genuinely closed.
Paste any text below — an AI response, an argument, a research conclusion, a decision rationale. Select the domain. The instrument analyses it against the six TOCA constraints using AI and returns a full chord reading with scored reasoning for each edge.
Is this grounded in something real and verifiable? Hallucination is the failure of R entirely.
Is this appropriate to the domain and scope? Correct claim, wrong context = false closure.
Were premises examined before conclusions? Unexamined premises produce opinion, not knowledge.
Does the conclusion follow by necessity? Probability is not closure. The tekmerion: the necessary sign.
Are proper limits observed? Overclaiming is the most common AI failure — K names and stops it.
Does this serve the stated purpose? Purpose gives reasoning its rhythm — the beat without which notes are noise.
Intellectual Property Notice. TOCA™, Hexis™, and Echosphere™ are trademarks of Echosphere.io LLC. The six-constraint architecture, domain-weighted profiles, failure mode taxonomy, harmonic closure assessment, and all related methods are patent-pending inventions of Steven Easley, Echosphere.io LLC (Orlando, FL · EIN 83-2857595). USPTO provisional applications filed January–April 2026. Free for personal and educational use under the Echosphere IP Covenant. Commercial use requires written license. © 2026 Echosphere.io LLC.