{
  "type": "object",
  "properties": {
    "spec": {
      "type": "object",
      "required": [
        "schedule",
        "query"
      ],
      "properties": {
        "schedule": {
          "type": "string",
          "description": "Cron expression for recurring execution (e.g., '*/5 * * * *')",
          "pattern": "^.+$",
          "minLength": 1
        },
        "enabled": {
          "type": "boolean",
          "description": "Whether the schedule is enabled",
          "default": true
        },
        "query": {
          "type": "string",
          "description": "Natural language question about system health",
          "minLength": 1,
          "maxLength": 5000
        },
        "timeout": {
          "type": "integer",
          "description": "Execution timeout in seconds",
          "default": 30,
          "minimum": 1,
          "maximum": 300
        },
        "mode": {
          "type": "string",
          "description": "Execution mode: 'alert' sends notifications on failure, 'monitor' logs only",
          "default": "monitor",
          "enum": [
            "alert",
            "monitor"
          ]
        },
        "model": {
          "type": "string",
          "description": "Override default LLM model for this check"
        },
        "destinations": {
          "type": "array",
          "description": "Alert destinations for failed checks (only used in alert mode)",
          "items": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string",
                "description": "Destination type (e.g., 'slack', 'pagerduty')"
              },
              "config": {
                "type": "object",
                "description": "Destination-specific configuration",
                "x-kubernetes-preserve-unknown-fields": true
              }
            },
            "additionalProperties": false
          }
        }
      },
      "additionalProperties": false
    },
    "status": {
      "type": "object",
      "properties": {
        "lastScheduleTime": {
          "type": "string",
          "format": "date-time",
          "description": "Last time a check was scheduled"
        },
        "lastSuccessfulTime": {
          "type": "string",
          "format": "date-time",
          "description": "Last time a check passed"
        },
        "lastResult": {
          "type": "string",
          "description": "Result of the last execution: pass, fail, or error",
          "enum": [
            "pass",
            "fail",
            "error"
          ]
        },
        "message": {
          "type": "string",
          "description": "Message from the last execution"
        },
        "active": {
          "type": "array",
          "description": "Currently running health checks",
          "items": {
            "type": "object",
            "required": [
              "name",
              "namespace",
              "uid",
              "startTime"
            ],
            "properties": {
              "name": {
                "type": "string",
                "description": "Name of the HealthCheck resource"
              },
              "namespace": {
                "type": "string",
                "description": "Namespace of the HealthCheck resource"
              },
              "uid": {
                "type": "string",
                "description": "UID of the HealthCheck resource"
              },
              "startTime": {
                "type": "string",
                "format": "date-time",
                "description": "When the check started"
              }
            },
            "additionalProperties": false
          }
        },
        "history": {
          "type": "array",
          "description": "Recent execution history (last N executions)",
          "items": {
            "type": "object",
            "required": [
              "executionTime",
              "result",
              "checkName"
            ],
            "properties": {
              "executionTime": {
                "type": "string",
                "format": "date-time",
                "description": "When the check was executed"
              },
              "result": {
                "type": "string",
                "description": "Check result: pass, fail, or error",
                "enum": [
                  "pass",
                  "fail",
                  "error"
                ]
              },
              "duration": {
                "type": "number",
                "description": "Execution duration in seconds"
              },
              "checkName": {
                "type": "string",
                "description": "Name of the HealthCheck resource"
              },
              "message": {
                "type": "string",
                "description": "Result message"
              }
            },
            "additionalProperties": false
          }
        },
        "conditions": {
          "type": "array",
          "description": "Standard Kubernetes conditions",
          "items": {
            "type": "object",
            "required": [
              "type",
              "status"
            ],
            "properties": {
              "type": {
                "type": "string",
                "description": "Condition type (e.g., 'ScheduleRegistered', 'ExecutionFailed')"
              },
              "status": {
                "type": "string",
                "description": "Condition status: True, False, or Unknown",
                "enum": [
                  "True",
                  "False",
                  "Unknown"
                ]
              },
              "lastTransitionTime": {
                "type": "string",
                "format": "date-time",
                "description": "Last time the condition transitioned"
              },
              "reason": {
                "type": "string",
                "description": "Machine-readable reason for the condition"
              },
              "message": {
                "type": "string",
                "description": "Human-readable message about the condition"
              }
            },
            "additionalProperties": false
          }
        }
      },
      "additionalProperties": false
    }
  }
}