{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://example.invalid/schemas/tool-suggestion-v1",
  "title": "Validated but not executed tool suggestion",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "schema_version",
    "request_id",
    "tool",
    "arguments"
  ],
  "properties": {
    "schema_version": {
      "const": 1
    },
    "request_id": {
      "type": "string",
      "pattern": "^req-[0-9]{4}$"
    },
    "tool": {
      "enum": [
        "search_notes",
        "send_email"
      ]
    },
    "arguments": {
      "type": "object"
    }
  },
  "oneOf": [
    {
      "properties": {
        "tool": {
          "const": "search_notes"
        },
        "arguments": {
          "$ref": "#/$defs/search_notes_arguments"
        }
      }
    },
    {
      "properties": {
        "tool": {
          "const": "send_email"
        },
        "arguments": {
          "$ref": "#/$defs/send_email_arguments"
        }
      }
    }
  ],
  "$defs": {
    "search_notes_arguments": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "query",
        "limit"
      ],
      "properties": {
        "query": {
          "type": "string",
          "minLength": 1,
          "maxLength": 200
        },
        "limit": {
          "type": "integer",
          "minimum": 1,
          "maximum": 20
        }
      }
    },
    "send_email_arguments": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "recipient",
        "subject",
        "body"
      ],
      "properties": {
        "recipient": {
          "type": "string",
          "pattern": "^[a-z0-9._-]+@example[.]test$"
        },
        "subject": {
          "type": "string",
          "minLength": 1,
          "maxLength": 120
        },
        "body": {
          "type": "string",
          "minLength": 1,
          "maxLength": 2000
        }
      }
    }
  }
}