New authority split
- A versioned rubric defines atomic elements, examples, counterexamples and rules.
- A researcher proposes exact spans from the response.
- An independent falsifier looks for contradictions or insufficient evidence.
- LearnX validates spans and computes levels through rules.
- Feedback comes from authored templates and never changes progress.
A revealing first test
Two of four calls ran before stopping: the positive case found 9 elements out of 9; the negative case 7 out of 9. Part of the disagreement came from an oracle that did not distinguish absence from explicit refutation.
Atomic agreement in the partial gate
Gate stopped after two calls; this is not a promotion result.
The promise this supports
“Autonomous, criteria-based formative feedback grounded in evidence from the learner’s response.” Never certified correction or AI validation of mastery.