{
  "schema_version": 1,
  "diagram_type": "architecture",
  "meta": {
    "title": "Hospital Clinical Intelligence Platform",
    "subtitle": "Capability → responsibility → implementation technology",
    "quality_profile": "showcase",
    "visual_preset": "blueprint",
    "views": [
      {"id":"turn-path","label":"Clinician turn","focus":["clinician","nextjs","fastapi","platform-shell","clinical-intelligence","main-agent","verifier","persist","runtime"],"note":"One clinician execution path; the main agent is the single semantic owner while application services retain deterministic authority."},
      {"id":"research","label":"Evidence research","focus":["clinical-intelligence","evidence-workspace","research","qdrant","main-agent"],"note":"Bounded approved-corpus research produces curated evidence; PostgreSQL is canonical and retrieval indexes are derived."},
      {"id":"authority","label":"Clinical authority","focus":["platform-shell","clinical-tools","main-agent","verifier","persist"],"note":"Approved deterministic clinical facts remain non-redecidable by the LLM."}
    ]
  },
  "components": [
    {"id":"clinician","type":"external","label":"Clinician","sublabel":"question · files · follow-up","pos":[40,310],"size":[125,66]},
    {"id":"nextjs","type":"frontend","label":"Clinician web shell","sublabel":"interaction · streaming UI","tech":"Next.js · React · TypeScript","pos":[205,305],"size":[145,76]},
    {"id":"fastapi","type":"backend","label":"Authenticated API","sublabel":"conversation boundary","tech":"Python · FastAPI · SSE/WebSockets","pos":[390,305],"size":[155,76]},
    {"id":"platform-shell","type":"security","label":"Hospital platform shell","sublabel":"ACL · audit · durable state","tech":"PostgreSQL · Python application kernel","pos":[585,295],"size":[170,96],"tag":"shared kernel"},
    {"id":"clinical-intelligence","type":"backend","label":"Clinical intelligence","sublabel":"single model-visible root","tech":"Python · LLM tool orchestration","pos":[805,290],"size":[180,106],"tag":"owned boundary"},
    {"id":"evidence-workspace","type":"database","label":"Evidence Workspace","sublabel":"canonical observations · provenance","tech":"PostgreSQL","pos":[785,105],"size":[190,82]},
    {"id":"clinical-tools","type":"security","label":"Clinical fact tools","sublabel":"deterministic approved facts","tech":"Python · typed deterministic services","pos":[1030,105],"size":[180,82]},
    {"id":"research","type":"backend","label":"Evidence research","sublabel":"bounded approved corpus","tech":"Python · hybrid retrieval","pos":[785,505],"size":[190,86]},
    {"id":"qdrant","type":"database","label":"Vector / hybrid search","sublabel":"derived · rebuildable","tech":"Qdrant · pgvector","pos":[1030,505],"size":[180,86]},
    {"id":"main-agent","type":"backend","label":"Main clinical agent","sublabel":"single semantic owner","tech":"LLM · Python bounded loop","pos":[1030,290],"size":[180,106],"tag":"bounded loop"},
    {"id":"verifier","type":"security","label":"Evidence verifier + guards","sublabel":"conditional exact-support check","tech":"Python · deterministic guards","pos":[1250,290],"size":[185,106],"tag":"not a second router"},
    {"id":"persist","type":"database","label":"Answer + citations","sublabel":"persisted · auditable","tech":"PostgreSQL · immutable provenance","pos":[1260,505],"size":[170,86]},
    {"id":"runtime","type":"backend","label":"Async & deployment runtime","sublabel":"background work · protected/on-prem delivery","tech":"Celery · RabbitMQ · Docker · Linux · Nginx","pos":[390,505],"size":[310,86]}
  ],
  "boundaries": [
    {"kind":"region","label":"Hospital application boundary","wraps":["nextjs","fastapi","platform-shell","clinical-intelligence","evidence-workspace","clinical-tools","research","qdrant","main-agent","verifier","persist","runtime"],"pad":24},
    {"kind":"security-group","label":"Model-visible clinical intelligence","wraps":["clinical-intelligence","evidence-workspace","clinical-tools","research","main-agent","verifier"],"pad":18}
  ],
  "connections": [
    {"id":"c1","from":"clinician","to":"nextjs","variant":"emphasis"},
    {"id":"c2","from":"nextjs","to":"fastapi"},
    {"id":"c3","from":"fastapi","to":"platform-shell"},
    {"id":"c4","from":"platform-shell","to":"clinical-intelligence","variant":"security"},
    {"id":"c5","from":"clinical-intelligence","to":"main-agent","variant":"emphasis"},
    {"id":"c6","from":"main-agent","to":"verifier","variant":"security"},
    {"id":"c7","from":"verifier","to":"persist","label":"publish","variant":"emphasis"},
    {"id":"c8","from":"clinical-intelligence","to":"evidence-workspace","label":"typed context"},
    {"id":"c9","from":"clinical-intelligence","to":"clinical-tools","label":"tool registry"},
    {"id":"c10","from":"clinical-intelligence","to":"research","label":"semantic research objective"},
    {"id":"c11","from":"research","to":"qdrant","label":"retrieve","variant":"dashed"},
    {"id":"c12","from":"evidence-workspace","to":"main-agent","label":"observations + evidence"},
    {"id":"c13","from":"clinical-tools","to":"main-agent","label":"facts"},
    {"id":"c14","from":"research","to":"main-agent","label":"curated evidence pack"},
    {"id":"c15","from":"platform-shell","to":"runtime","label":"async/runtime","variant":"dashed"}
  ],
  "cards": [
    {"dot":"cyan","title":"Single semantic owner","items":["LLM reasoning is bounded inside a Python-owned tool loop","FastAPI/PostgreSQL application contracts retain permissions, durable state and provenance"]},
    {"dot":"emerald","title":"Evidence & authority","items":["PostgreSQL owns durable clinical/evidence truth","Qdrant/pgvector retrieval is derived and rebuildable","Approved clinical services remain deterministic and non-redecidable"]},
    {"dot":"rose","title":"Runtime depth","items":["Next.js/React provide the clinician surface and FastAPI owns the service boundary","Celery/RabbitMQ handle asynchronous work","Docker/Linux/Nginx support constrained protected deployment"]}
  ]
}