| Mobile client | camera/microphone UI, local preview, network state, permissions, queued fallback | vendor secrets, final treatment authority |
| Live media plane | WebRTC rooms, tracks, TURN, participant authorization, telemetry | agricultural reasoning or long-term case authority |
| Realtime agent | streaming STT/TTS, interruption, frame sampling, camera guidance delivery | policy authorization or raw media retention policy |
| Case service | durable case/session state, access, status, snapshots | provider-specific model logic |
| Reasoning agent | hypotheses, questions, tools, research, stopping | exact registration/dosage authority |
| Model gateway | provider routing, versions, schemas, redaction, quotas | business workflow authority |
| Knowledge/context services | retrieval, provenance, environmental context | farmer-facing final decisions |
| Policy service | exact legal/numerical checks | general diagnosis reasoning |
| Review service | queue, officer join, handoff and disposition | silent override without audit |