{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://prism-framework.org/schema/1.0/prism-ai/models",
  "title": "PRISM/AI — M: Models",
  "description": "Inventory of AI models: foundation, fine-tuned, custom, embedding, classifiers, and explainability layers.",
  "type": "object",
  "required": ["prism", "models"],
  "additionalProperties": false,
  "properties": {
    "prism": {
      "type": "object",
      "required": ["layer", "schema_version"],
      "additionalProperties": false,
      "properties": {
        "layer": { "const": "models" },
        "schema_version": { "type": "string", "pattern": "^\\d+\\.\\d+$" },
        "temporal_state": { "type": "string", "enum": ["baseline", "transition", "target"] },
        "as_of": { "type": "string", "format": "date" },
        "label": { "type": "string" }
      }
    },
    "models": {
      "type": "array",
      "description": "AI model artifacts in this landscape.",
      "items": {
        "type": "object",
        "required": ["id", "name", "type", "model_provider", "capability_type", "lifecycle_stage", "version", "license", "ai_model"],
        "additionalProperties": false,
        "properties": {
          "id": { "type": "string", "description": "Unique identifier for this model artifact." },
          "name": { "type": "string" },
          "type": {
            "type": "string",
            "enum": ["foundation_model", "fine_tuned_model", "custom_model", "embedding_model", "classifier", "explainability_layer"],
            "description": "What kind of model artifact this is."
          },
          "model_provider": {
            "type": "string",
            "enum": ["anthropic", "openai", "google", "meta", "open-source", "proprietary"],
            "description": "Who supplies or originally trained this model."
          },
          "capability_type": {
            "type": "string",
            "enum": ["generation", "classification", "embedding", "reasoning", "vision", "multimodal", "structured-output"],
            "description": "Primary capability this model exposes."
          },
          "lifecycle_stage": {
            "type": "string",
            "enum": ["research", "training", "evaluation", "staging", "production", "deprecated", "retired"],
            "description": "Current stage in the AI model lifecycle."
          },
          "version": {
            "type": "string",
            "description": "Version string for this model (e.g., '2.1', 'gpt-4o-2024-08-06')."
          },
          "license": {
            "type": "string",
            "enum": ["proprietary-api", "open-source-permissive", "open-source-restricted"],
            "description": "Licensing terms governing use of this model."
          },
          "ai_model": {
            "type": "boolean",
            "const": true,
            "description": "Always true — marks this artifact as an AI model for tooling."
          },
          "description": { "type": "string" },
          "training_data_source": {
            "type": "string",
            "description": "PRISM/D domain reference or description of training data origin."
          },
          "accuracy": {
            "type": "string",
            "description": "Reported accuracy or key eval metric (e.g., '89.1%', 'BLEU 42.3')."
          },
          "latency_p99": {
            "type": "string",
            "description": "P99 inference latency in production (e.g., '<50ms', '145ms')."
          },
          "owner_team": { "type": "string" },
          "maturity": {
            "type": "string",
            "enum": ["initial", "developing", "defined", "managed", "optimizing"],
            "description": "Governance maturity around this model (monitoring, retraining, evaluation discipline), independent of lifecycle_stage."
          },
          "depends_on": {
            "type": "array",
            "items": { "type": "string" },
            "description": "IDs of other model artifacts this one depends on (e.g., an explainability layer wrapping a base model)."
          },
          "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" }
        }
      }
    }
  }
}