{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://spec.agentthreatrule.org/profile/v1.0/schema.json",
  "title": "ATR Profile v1.0",
  "description": "Machine-readable schema for ATR profile (rule-set composition). Normative spec at spec/atr-profile-v1.0.md. License: CC BY 4.0.",
  "type": "object",
  "required": ["profile", "inclusions"],
  "additionalProperties": false,
  "properties": {
    "profile": {
      "type": "object",
      "required": [
        "schema_version",
        "id",
        "title",
        "version",
        "description",
        "author",
        "date",
        "license",
        "status",
        "conformance_bound"
      ],
      "additionalProperties": false,
      "properties": {
        "schema_version": {
          "type": "string",
          "const": "1.0"
        },
        "id": {
          "type": "string",
          "pattern": "^[a-z0-9][a-z0-9-]{2,63}$",
          "description": "Globally unique profile identifier (kebab-case)."
        },
        "title": {
          "type": "string",
          "minLength": 3
        },
        "version": {
          "type": "string",
          "pattern": "^\\d+\\.\\d+\\.\\d+(?:-[0-9A-Za-z.-]+)?$",
          "description": "SemVer 2.0 profile version."
        },
        "description": {
          "type": "string",
          "minLength": 20
        },
        "author": {
          "type": "string"
        },
        "date": {
          "type": "string",
          "format": "date"
        },
        "license": {
          "type": "string",
          "description": "SPDX license identifier or full license URL.",
          "examples": ["CC-BY-4.0", "MIT", "Apache-2.0"]
        },
        "status": {
          "type": "string",
          "enum": ["draft", "stable", "deprecated"]
        },
        "conformance_bound": {
          "type": "object",
          "required": [
            "spec_version_min",
            "minimum_rule_coverage",
            "minimum_engine_passing"
          ],
          "additionalProperties": false,
          "properties": {
            "spec_version_min": {
              "type": "string",
              "pattern": "^\\d+\\.\\d+$"
            },
            "spec_version_max": {
              "type": ["string", "null"],
              "pattern": "^\\d+\\.\\d+$"
            },
            "minimum_rule_coverage": {
              "type": "number",
              "minimum": 0.0,
              "maximum": 1.0
            },
            "minimum_engine_passing": {
              "type": "number",
              "minimum": 0.0,
              "maximum": 1.0
            }
          }
        }
      }
    },
    "inclusions": {
      "type": "array",
      "minItems": 1,
      "items": {
        "$ref": "#/$defs/selector"
      }
    },
    "exclusions": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/selector"
      }
    },
    "resolved_rules_summary": {
      "type": "object",
      "description": "Optional informational summary populated at profile-resolution time.",
      "additionalProperties": true,
      "properties": {
        "total": {"type": "integer", "minimum": 0},
        "by_category": {
          "type": "object",
          "patternProperties": {
            "^[a-z][a-z0-9-]+$": {"type": "integer", "minimum": 0}
          }
        }
      }
    }
  },
  "$defs": {
    "selector": {
      "type": "object",
      "oneOf": [
        {
          "required": ["rule_id"],
          "properties": {
            "rule_id": {
              "type": "string",
              "pattern": "^ATR-(?:[A-Z]{2}-)?[0-9]{4}-[0-9]{5}$"
            }
          },
          "additionalProperties": false
        },
        {
          "required": ["rule_id_pattern"],
          "properties": {
            "rule_id_pattern": {
              "type": "string",
              "description": "Glob pattern matching ATR rule IDs."
            }
          },
          "additionalProperties": false
        },
        {
          "required": ["category"],
          "properties": {
            "category": {
              "type": "string",
              "description": "Top-level category from spec/category-registry/v1.0.yaml or a reserved namespace prefix."
            }
          },
          "additionalProperties": false
        },
        {
          "required": ["tag_match"],
          "properties": {
            "tag_match": {
              "type": "object",
              "additionalProperties": {
                "oneOf": [
                  {"type": "string"},
                  {"type": "array", "items": {"type": "string"}}
                ]
              }
            }
          },
          "additionalProperties": false
        },
        {
          "required": ["profile"],
          "properties": {
            "profile": {
              "type": "string",
              "pattern": "^[a-z0-9][a-z0-9-]{2,63}@\\d+\\.\\d+\\.\\d+$",
              "description": "Profile inclusion in form <profile-id>@<version> for composition."
            }
          },
          "additionalProperties": false
        },
        {
          "required": ["rule_status"],
          "properties": {
            "rule_status": {
              "type": "string",
              "enum": ["draft", "experimental", "stable", "deprecated"]
            }
          },
          "additionalProperties": false
        }
      ]
    }
  }
}