RAG 한 조각에서, 산업용 AI 시스템 전체까지.

async function diagnose(command: Diagnose, actor: Actor) {
  await authorization.require(actor, "incident:read", command.incidentId);

  const incident = await caseRepo.load(command.incidentId);
  const evidence = await contextService.collect({
    actor, assetId: incident.assetId, timeWindow: incident.timeWindow,
  });

  // The model proposes. It does not authorize or execute.
  const proposal = DiagnosisProposalSchema.parse(
    await decisionService.generate({ incident, evidence })
  );

  const verdict = await policy.evaluate({
    actor, caseState: incident.state, action: proposal.nextAction,
  });
  if (verdict.kind === "DENY") return caseRepo.routeToHuman(incident.id);
  if (verdict.kind === "REQUIRE_APPROVAL") {
    return approvalService.create({ proposal, verdict });
  }

  const receipt = await toolRunner.execute({
    action: proposal.nextAction,
    idempotencyKey: incident.id + ":" + proposal.actionId,
  });
  const verified = await resultVerifier.verify(receipt);
  await audit.record({ actor, incident, evidence, proposal, verdict, verified });
  return verified;
}