{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://cognitive-agent.local/schemas/scene-config.schema.json",
  "title": "SceneConfig",
  "type": "object",
  "additionalProperties": false,
  "required": ["apiVersion", "kind", "metadata", "spec"],
  "properties": {
    "apiVersion": {"const": "cognitive-agent/v1alpha1"},
    "kind": {"const": "SceneConfig"},
    "metadata": {"$ref": "common.schema.json#/$defs/metadata"},
    "spec": {
      "type": "object",
      "additionalProperties": false,
      "required": ["function_refs", "steps", "execution"],
      "properties": {
        "function_refs": {
          "type": "array",
          "minItems": 2,
          "uniqueItems": true,
          "items": {
            "type": "object",
            "additionalProperties": false,
            "required": ["id", "domain", "config_ref"],
            "properties": {
              "id": {"type": "string", "pattern": "^[a-z][a-z0-9_-]{1,63}$"},
              "domain": {"type": "string", "pattern": "^[a-z][a-z0-9_]*$"},
              "config_ref": {"type": "string", "minLength": 1, "format": "uri-reference"},
              "sha256": {"type": "string", "pattern": "^[a-f0-9]{64}$"}
            }
          }
        },
        "steps": {
          "type": "array",
          "minItems": 2,
          "maxItems": 128,
          "items": {
            "type": "object",
            "additionalProperties": false,
            "required": ["id", "function_ref"],
            "properties": {
              "id": {"type": "string", "pattern": "^[a-z][a-z0-9_-]{1,63}$"},
              "function_ref": {"type": "string", "pattern": "^[a-z][a-z0-9_-]{1,63}$"},
              "depends_on": {
                "type": "array",
                "uniqueItems": true,
                "items": {"type": "string", "pattern": "^[a-z][a-z0-9_-]{1,63}$"},
                "default": []
              },
              "start_offset_ms": {"type": "integer", "minimum": 0, "maximum": 3600000},
              "failure_policy": {"$ref": "common.schema.json#/$defs/failure_policy"}
            }
          }
        },
        "execution": {
          "type": "object",
          "additionalProperties": false,
          "required": ["mode", "default_failure_policy"],
          "properties": {
            "mode": {"type": "string", "enum": ["sequential", "parallel", "dag"]},
            "default_failure_policy": {"$ref": "common.schema.json#/$defs/failure_policy"},
            "max_parallelism": {"type": "integer", "minimum": 1, "maximum": 16},
            "scene_timeout_ms": {"type": "integer", "minimum": 1, "maximum": 3600000}
          }
        }
      }
    }
  }
}