{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://noui.bot/specs/mcp-billing-v1/meter-event.schema.json",
  "title": "MCP Billing v1 Meter Event Request",
  "description": "Intended client request profile; current meter route does not enforce this schema at runtime.",
  "type": "object",
  "properties": {
    "tool_id": {
      "type": "string",
      "minLength": 1
    },
    "tool_name": {
      "type": "string",
      "minLength": 1
    },
    "agent_id": {
      "type": "string",
      "minLength": 1
    },
    "status": {
      "type": "string",
      "enum": [
        "success",
        "error",
        "timeout",
        "rate_limited"
      ],
      "default": "success"
    },
    "duration_ms": {
      "type": "integer",
      "minimum": 0,
      "default": 0
    },
    "input_tokens": {
      "type": "integer",
      "minimum": 0,
      "default": 0
    },
    "output_tokens": {
      "type": "integer",
      "minimum": 0,
      "default": 0
    },
    "metadata": {
      "type": "object",
      "default": {}
    }
  },
  "anyOf": [
    {
      "required": [
        "tool_id"
      ]
    },
    {
      "required": [
        "tool_name"
      ]
    }
  ],
  "additionalProperties": false
}