{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://breakpilot.ai/schemas/control-pattern-v1",
  "title": "Control Pattern Schema",
  "description": "Schema for YAML control pattern definitions. Pattern ID format: CP-{DOMAIN}-{NNN}",
  "type": "object",
  "required": ["version", "patterns"],
  "properties": {
    "version": {
      "type": "string",
      "pattern": "^[0-9]+\\.[0-9]+$"
    },
    "description": {
      "type": "string"
    },
    "patterns": {
      "type": "array",
      "items": { "$ref": "#/$defs/ControlPattern" },
      "minItems": 1
    }
  },
  "$defs": {
    "ControlPattern": {
      "type": "object",
      "required": [
        "id", "name", "name_de", "domain", "category", "description",
        "objective_template", "rationale_template", "requirements_template",
        "test_procedure_template", "evidence_template", "severity_default",
        "obligation_match_keywords", "tags"
      ],
      "properties": {
        "id": {
          "type": "string",
          "pattern": "^CP-[A-Z]+-[0-9]{3}$",
          "description": "Unique pattern ID. Format: CP-{DOMAIN}-{NNN}"
        },
        "name": {
          "type": "string",
          "pattern": "^[a-z][a-z0-9_]*$",
          "description": "Machine-readable name (snake_case)"
        },
        "name_de": {
          "type": "string",
          "description": "Human-readable German name"
        },
        "domain": {
          "type": "string",
          "enum": ["AUTH", "CRYP", "NET", "DATA", "LOG", "ACC", "SEC", "INC", "AI", "COMP", "GOV", "LAB", "FIN", "TRD", "ENV", "HLT"],
          "description": "Domain code matching DOMAIN_KEYWORDS in control_generator.py"
        },
        "category": {
          "type": "string",
          "description": "Functional category (e.g. authentication, encryption, incident)"
        },
        "description": {
          "type": "string",
          "minLength": 20,
          "description": "Brief description of what this pattern covers"
        },
        "objective_template": {
          "type": "string",
          "minLength": 20,
          "description": "Template for the control objective. May contain {placeholders}."
        },
        "rationale_template": {
          "type": "string",
          "minLength": 20,
          "description": "Template explaining why this control matters."
        },
        "requirements_template": {
          "type": "array",
          "items": { "type": "string" },
          "minItems": 2,
          "description": "Template requirements. May contain {placeholder:default} syntax."
        },
        "test_procedure_template": {
          "type": "array",
          "items": { "type": "string" },
          "minItems": 1
        },
        "evidence_template": {
          "type": "array",
          "items": { "type": "string" },
          "minItems": 1
        },
        "severity_default": {
          "type": "string",
          "enum": ["low", "medium", "high", "critical"]
        },
        "implementation_effort_default": {
          "type": "string",
          "enum": ["s", "m", "l", "xl"]
        },
        "open_anchor_refs": {
          "type": "array",
          "items": {
            "type": "object",
            "required": ["framework", "ref"],
            "properties": {
              "framework": { "type": "string" },
              "ref": { "type": "string" }
            }
          }
        },
        "obligation_match_keywords": {
          "type": "array",
          "items": { "type": "string" },
          "minItems": 3,
          "description": "Keywords for matching obligations to this pattern (de + en)"
        },
        "tags": {
          "type": "array",
          "items": { "type": "string" },
          "minItems": 1
        },
        "composable_with": {
          "type": "array",
          "items": {
            "type": "string",
            "pattern": "^CP-[A-Z]+-[0-9]{3}$"
          },
          "description": "Pattern IDs that combine well with this one"
        }
      },
      "additionalProperties": false
    }
  }
}