"'Slept badly and the knee was stiff' is not one thing to file. It is a measurement and a symptom, from one breath."
The Reading Types
The typed layer draws from a small vocabulary of reading types: symptom, workout, intake, medication, measurement, medical-record, meal — plus note as the honest catch-all when the prose is real but fits none of the others. This is not a menu Dad picks from; it is the shape Pippa maps his words onto, after the fact. The vocabulary is deliberately small and stable, because a controlled set is what makes months of crumbs comparable — but it lives in interpretation, not in a capture form.
One Crumb, Several Readings
Prose does not respect one-topic-per-sentence, so a single crumb can carry several readings. "Slept badly and the knee was stiff" yields a measurement/sleep reading and a symptom reading at once; "took the new supplement, felt a bit nauseous after lunch" can yield intake, meal, and symptom. The reading names only what the prose actually supports — a site and quality for a symptom, a value and unit for a measurement, a substance statement for a medication — and never invents a field the words did not earn.
The Rubric Knows Dad
The reading rubric is not generic; it carries a few standing facts about Dad so it never contradicts them. He does not drink alcohol — absolute, not a preference — so there is no intake sub-field for it and no correlation branch that assumes otherwise; there is nothing to reduce. He has a mild rheumatic tendency, so joint and inflammation symptoms are the expected primary class, not an edge case. Those facts live in the vault and are embedded in the rubric, so the typed layer reads his body the way someone who knows him would — which is, again, the whole point.