# Provenance Policy

Use one of these values for every consequential claim, task answer, rubric rule, feedback judgment, and Personal Skill rule:

- `direct_source`: explicitly present in one source.
- `source_grounded_synthesis`: a bounded synthesis from one source or course.
- `cross_source_synthesis`: a synthesis across named sources whose distinctions remain visible.
- `mentor_inference`: runtime interpretation not stated by the teacher.
- `learner_hypothesis`: an unverified learner explanation or adaptation.
- `learner_observation`: a learner-reported observation.
- `real_world_evidence`: an observable project, user, metric, expert, or experiment result.
- `external_general_knowledge`: knowledge outside the packaged teacher sources.
- `unsupported`: no adequate evidence is available.

Never rewrite immutable teacher assets with learner evidence. Preserve competing teacher claims and their conditions. High-impact inference needs a visible label and human review when evidence is thin.
