Files
HealthLog/src/lib/ai/__tests__
Marc-André BombeckandClaude Opus 4.7 8a438a0680 feat(ai): schema requires rationale (window + comparedTo + deviation) per recommendation
Each recommendation now carries a 3-field `rationale` object that
powers the upcoming Oura-style "Contributors" expand-card:

  - dataWindow: which time window the rec is based on (matches the
    metricSource.timeRange enum so the UI mini-chart can pin to it)
  - comparedTo: what the user's data is being compared against
    (the user's own baseline or a guideline ceiling)
  - deviation: size + direction of the deviation that triggered
    the rec

Empty `comparedTo` or `deviation` is rejected so the model cannot
emit a placeholder rationale card. Optional `referenceId` rides
along for defence-in-depth; the rec-level referenceId stays the
canonical citation source.

`findRecommendationsMissingRationale()` lets the route detect
legacy (pre-B5c) cached payloads so the UI can show a "regenerate
for new explainability features" CTA. User-initiated regeneration
stays the trigger; nothing auto-runs.

10 new tests in `rationale-schema.test.ts` pin the contract:
- rationale required on every rec
- comparedTo / deviation reject empty strings
- dataWindow rejects unknown enum values
- legacy payload detector returns missing rec ids only
- mixed payloads flag only the legacy entries

Existing test fixtures in `generate-insight.test.ts`,
`reference-id-schema.test.ts`, `citation-enforcement.test.ts`,
and `citation-coverage-logging.test.ts` updated to include
rationale on every well-formed rec — typecheck-clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-10 01:17:15 +02:00
..