{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "GPIO-LLM Training Example",
  "type": "object",
  "required": [
    "id",
    "category",
    "messages",
    "expected_action"
  ],
  "additionalProperties": false,
  "properties": {
    "id": {
      "type": "string",
      "pattern": "^[a-z0-9_]+$"
    },
    "category": {
      "type": "string",
      "enum": [
        "gpio_basic",
        "gpio_read",
        "gpio_write",
        "gpio_mode",
        "gpio_pwm",
        "gpio_timing",
        "gpio_sequence",
        "sensor",
        "driver",
        "clarification",
        "error",
        "safety",
        "general_hardware"
      ]
    },
    "messages": {
      "type": "array",
      "minItems": 1,
      "items": {
        "type": "object",
        "required": [
          "role",
          "content"
        ],
        "additionalProperties": false,
        "properties": {
          "role": {
            "type": "string",
            "enum": [
              "system",
              "user",
              "assistant"
            ]
          },
          "content": {
            "type": "string",
            "minLength": 1
          }
        }
      }
    },
    "context": {
      "type": "object",
      "properties": {
        "gpio_state": {
          "type": "object"
        },
        "device_mappings": {
          "type": "object"
        },
        "sensor_state": {
          "type": "object"
        },
        "available_pins": {
          "type": "array",
          "items": {
            "type": "integer"
          }
        }
      },
      "additionalProperties": true
    },
    "expected_action": {
      "type": "object",
      "required": [
        "action"
      ],
      "additionalProperties": false,
      "properties": {
        "action": {
          "type": "string"
        },
        "pin": {
          "type": [
            "integer",
            "null"
          ]
        },
        "value": {
          "type": [
            "string",
            "number",
            "boolean",
            "null"
          ]
        },
        "duration_ms": {
          "type": [
            "integer",
            "null"
          ]
        },
        "mode": {
          "type": "string",
          "enum": ["INPUT", "OUTPUT", "ALT"]
        },
        "duty_cycle": {
          "type": "number"
        },
        "operations": {
          "type": "array",
          "minItems": 1,
          "items": {
            "type": "object",
            "required": ["action"]
          }
        },
        "parameters": {
          "type": "object"
        }
      }
    },
    "difficulty": {
      "type": "integer",
      "minimum": 1,
      "maximum": 5
    },
    "source": {
      "type": "string"
    },
    "fact_refs": {
      "type": "array",
      "items": {
        "type": "string",
        "pattern": "^[FP]-[A-Z0-9-]+$"
      }
    },
    "template_id": {
      "type": "string"
    },
    "split": {
      "type": "string",
      "enum": ["train", "eval"]
    }
  }
}