@metabiohacker/core — Multimodal Ingest + Fusion + Ledger (V0)

The medical signal operating system around the frozen sonic_ct acoustic engine. No real patient data, no diagnosis, no claims — this proves the pipeline can ingest typed artifacts, canonicalise them, build priors, fuse them, and score whether multimodal context improves reconstruction, with full provenance and a verifiable audit trail.

Layers

typed artifacts (CSV/DICOM-sidecar/JSON)
  └─ ingest adapters ─▶ canonical MedicalObservation (provenance + uncertainty + consent)
       └─ patient state graph + rule-based contradiction detection
            └─ prior builder ─▶ reconstruction priors (never force a conclusion)
                 └─ Darwin fusion harness (mapLimit + paretoFront) selects a fusion policy
                      └─ evidence layer (ruvn): A/B-or-blocked claim gate, off the hot path
                           └─ reconstruction run ledger (stable hashes) ─▶ safe UI packet

The Rust acoustic engine is frozen; only the harness around it evolves. External medical data changes priors, confidence, routing, and uncertainty — it cannot force a diagnosis. Pathology/biopsy/Pap/HPV/cytology always force human review. Claims ship only on ruvn evidence grade A or B with citations.

Run

npm install
npm test        # 14 tests (ingest, graph, contradictions, fusion, ledger, evidence gate)
npm run benchmark   # acoustic-only vs evolved multimodal fusion + ledger verification

Representative benchmark: +10% reconstruction stability, ~37% uncertainty drop, acoustic residual unchanged, ledger verified, pathology → clinical-review mode.

Layout

• src/ingest/ — canonical MedicalObservation + lab / imaging / pathology adapters
• src/graph/ — patient state graph + contradiction detection
• src/fusion/ — prior builder, scoring, contradiction penalty, Darwin harness
• src/evidence/ — ruvn evidence provider interface, grading gate, cached + CLI providers
• src/ledger/ + src/output/ — verifiable run ledger + safe UI packet

See docs/sonic-ct/adr/ ADR-0014..0023 for the decisions behind each layer. Evidence layer is optional and never a hard dependency on @ruvnet/ruvn.