{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "method-execution",
  "description": "P3-B: 계약 실행의 흔적(존재≠수행). active 계약·standard/heavy 보고서에서 required. step-results를 artifact/evidence/receipt로 증명.",
  "type": "object",
  "required": ["role-id", "method-id", "contract-sha256", "step-results"],
  "additionalProperties": true,
  "properties": {
    "role-id": {"type": "string"},
    "method-id": {"type": "string"},
    "contract-sha256": {"type": "string", "minLength": 64, "maxLength": 64},
    "capability-bindings": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["skill-id", "section-id", "section-sha256"],
        "properties": {
          "skill-id": {"type": "string"},
          "section-id": {"type": "string"},
          "section-sha256": {"type": "string"}
        }
      }
    },
    "step-results": {
      "type": "array",
      "minItems": 1,
      "items": {
        "type": "object",
        "required": ["step-id", "status"],
        "properties": {
          "step-id": {"type": "string"},
          "status": {"enum": ["completed", "skipped"]},
          "output-binding": {"enum": ["current-artifact", "trusted-artifact"]},
          "artifact-refs": {
            "type": "array",
            "items": {"type": "object", "required": ["report-id", "sha256"],
              "properties": {"report-id": {"type": "string"}, "sha256": {"type": "string"}}}
          },
          "evidence-refs": {
            "type": "array",
            "items": {"type": "object", "required": ["source-uri", "grade"],
              "properties": {"source-uri": {"type": "string"}, "grade": {"type": "string"}}}
          },
          "skip-rule-id": {"type": "string"},
          "reason": {"type": "string"}
        }
      }
    },
    "decisions": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["decision-id", "alternatives", "selected-option-id"],
        "properties": {
          "decision-id": {"type": "string"},
          "alternatives": {
            "type": "array", "minItems": 1,
            "items": {"type": "object", "required": ["option-id"],
              "properties": {"option-id": {"type": "string"},
                "evidence-refs": {"type": "array"}}}
          },
          "selected-option-id": {"type": "string"},
          "rejection-rationales": {"type": "object"}
        }
      }
    },
    "self-check-results": {
      "type": "array",
      "items": {
        "type": "object", "required": ["step-id", "gate-id", "verdict", "evidence-refs"],
        "properties": {
          "step-id": {"type": "string"}, "gate-id": {"type": "string"},
          "verdict": {"enum": ["Passed", "Failed"]},
          "evidence-refs": {"type": "array", "minItems": 1}
        }
      }
    },
    "judgment-results": {
      "type": "array",
      "items": {
        "type": "object", "required": ["step-id", "gate-id", "review-artifact-ref"],
        "properties": {
          "step-id": {"type": "string"}, "gate-id": {"type": "string"},
          "review-artifact-ref": {"type": "object", "required": ["report-id", "sha256"],
            "properties": {"report-id": {"type": "string"}, "sha256": {"type": "string", "pattern": "^[0-9a-f]{64}$"}}}
        }
      }
    },
    "handoffs": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["to-role", "artifact-refs"],
        "properties": {
          "to-role": {"type": "string"},
          "to-method": {"type": "string"},
          "artifact-refs": {
            "type": "array",
            "items": {"type": "object", "required": ["report-id", "sha256"],
              "properties": {"report-id": {"type": "string"}, "sha256": {"type": "string"}}}
          }
        }
      }
    }
  }
}