{
  "$schema": "https://zachshallbetter.com/measurements.json",
  "model": "Foundations of Computational Interaction — Measurement Contract (Contracts v1.0.0-structure.1 §10)",
  "note": "None of these measures is a validated psychometric construct. They are a deterministic estimate and a set of designed field signals. No behavioral, comprehension, or identity claim rests on them.",
  "measures": [
    {
      "id": "readTime",
      "construct": "approximate reading effort",
      "measurand": "body word count ÷ 200 words-per-minute, floored at 1",
      "unit": "minutes",
      "scale": "ratio",
      "observation_model": "deterministic word count over the markdown body (no reader involved)",
      "uncertainty": "a coarse population heuristic; ±large for any individual; ignores code, images, difficulty",
      "validity_evidence": "none — convention, not a validated instrument",
      "prohibited_interpretations": [
        "that a reader spent this long",
        "that this equals comprehension time",
        "any per-person or difficulty claim"
      ]
    },
    {
      "id": "engine-feedback-channels",
      "construct": "the particle field’s internal self-state (fundamental-engine)",
      "measurand": "per-frame per-body channels: density, load, lit, entropy, coherence, temperature",
      "unit": "unitless, designed ranges",
      "scale": "designed (not a physical measurement)",
      "observation_model": "the engine integrator writes channels back to each body each frame; surfaced as CSS vars (--density, --coherence, …)",
      "uncertainty": "designed values, not sampled measurements; engine passport TruthMode: designed / semantic",
      "validity_evidence": "n/a — these are operational-semantic signals, not measurements of anything external",
      "prohibited_interpretations": [
        "that \"coherence\"/\"entropy\" here measure the reader, the text’s quality, or any real quantity",
        "treating a designed signal as a physical or psychological measurement"
      ]
    },
    {
      "id": "semantic-field",
      "construct": "the argument structure of an essay (archetype, section roles, concepts, relations)",
      "measurand": "a single LLM classification of the body against a fixed role/archetype vocabulary",
      "unit": "categorical",
      "scale": "nominal",
      "observation_model": "one model pass; provenance recorded on the entry as data.generated",
      "uncertainty": "model-inferred and UNVALIDATED — no inter-rater reliability, no ground truth, no per-claim confidence",
      "validity_evidence": "none — a plausible reading, not a verified one",
      "prohibited_interpretations": [
        "that the assigned role/archetype is the correct or only reading",
        "that the field is validated ground truth rather than a generated annotation"
      ]
    }
  ]
}