| Term | Meaning |
|---|---|
| AVS | After-Visit Summary, patient-facing discharge/visit document |
| ADT A03 / A01 / A04 | HL7v2 events: discharge / admit / registration, trigger + readmission signals |
| Backend services (SMART) | OAuth2 client-credentials app-to-app FHIR access, no user login |
| CCD (CDA R2) | Continuity of Care Document, the only EHR export artifact (ADR-010) |
| Episode | One patient's 30-day post-discharge instance and its state container |
| Evidence class | Provenance of a status event: patient_report | pharmacy_confirmed | clinician_confirmed | ehr |
| Gate (1–7) | Deterministic validation stage every extracted fact must pass before publication |
| Grant | Time-boxed, purpose-limited access token record (clinician or caregiver) |
| L1/L2/L3 | Exception routes: operational / clinical-judgment / safety (§12.5) |
| Material change | Fact classes that force brief regeneration and require level ≤7 sourcing |
| Outbox | Same-transaction event table drained ≤5 s; mechanism for all 60 s SLAs |
| Policy envelope | Versioned JSON contract bounding an agent's tools, retries, costs, prohibitions |
| Source level | Position 1–9 in the precedence hierarchy (ADR-009) |
| Step-up | Fresh OTP ≤5 min before any clinician confirmation writes |
| Superseded | Terminal task/fact state preserving history when replaced |
| Universal Task | The single 11-state workflow object underlying every patient/clinician action |
Approval & Next Step. Founder sign-off baselines this specification as TAI-ARCH-SPEC-001. Sprint 1 begins against Section 19 immediately; the Phase-0 partner review (Section 21) runs in parallel and cannot block the critical path by design.