{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://prism-framework.org/schema/1.0/prism-ai/systems",
  "title": "PRISM/AI — S: Systems",
  "description": "AI-powered applications and services: deployed systems, RAG pipelines, copilots, classifier services, autonomous workflows, and agents.",
  "type": "object",
  "required": ["prism", "systems"],
  "additionalProperties": false,
  "properties": {
    "prism": {
      "type": "object",
      "required": ["layer", "schema_version"],
      "additionalProperties": false,
      "properties": {
        "layer": { "const": "systems" },
        "schema_version": { "type": "string", "pattern": "^\\d+\\.\\d+$" },
        "temporal_state": { "type": "string", "enum": ["baseline", "transition", "target"] },
        "as_of": { "type": "string", "format": "date" },
        "label": { "type": "string" }
      }
    },
    "systems": {
      "type": "array",
      "description": "AI system artifacts in this landscape.",
      "items": {
        "type": "object",
        "required": ["id", "name", "type", "primary_model", "architecture_pattern", "human_in_loop", "failure_mode", "lifecycle_stage", "depends_on"],
        "additionalProperties": false,
        "properties": {
          "id": { "type": "string", "description": "Unique identifier for this AI system artifact." },
          "name": { "type": "string" },
          "type": {
            "type": "string",
            "enum": ["ai_system", "rag_pipeline", "copilot", "classifier_service", "autonomous_workflow", "ai_agent"],
            "description": "What kind of AI system this is."
          },
          "primary_model": {
            "type": "string",
            "description": "ID of the primary model artifact this system is built on."
          },
          "architecture_pattern": {
            "type": "string",
            "enum": ["rag", "zero-shot", "few-shot", "fine-tuned", "agentic", "ensemble", "hybrid"],
            "description": "The AI architecture pattern this system uses."
          },
          "human_in_loop": {
            "type": "boolean",
            "description": "Whether a human reviews AI decisions before they take effect."
          },
          "failure_mode": {
            "type": "string",
            "description": "What happens when this system fails or produces low-confidence output."
          },
          "lifecycle_stage": {
            "type": "string",
            "enum": ["research", "training", "evaluation", "staging", "production", "deprecated", "retired"],
            "description": "Current stage in the AI system lifecycle."
          },
          "depends_on": {
            "type": "array",
            "items": { "type": "string" },
            "description": "IDs of model artifacts (and other system artifacts) this system depends on.",
            "minItems": 1
          },
          "description": { "type": "string" },
          "owner_team": { "type": "string" },
          "sla": {
            "type": "string",
            "description": "Declared SLA for this system (e.g., '99.5% uptime', '<200ms P99')."
          },
          "compliance_frameworks": {
            "type": "array",
            "items": {
              "type": "object",
              "required": ["framework"],
              "additionalProperties": false,
              "properties": {
                "framework": { "type": "string" },
                "scope": { "type": "string" },
                "status": {
                  "type": "string",
                  "enum": ["applicable", "certified", "in-progress", "exempt"]
                }
              }
            }
          },
          "tags": {
            "type": "array",
            "items": { "type": "string" }
          },
          "notes": { "type": "string" }
        }
      }
    }
  }
}