{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/rule-feature",
  "title": "Rule Feature",
  "description": "A feature made available to the rule. The `name` field is the variable name used in the rule function signature. The `type` field determines which data the feature provides to the rule at evaluation time.\n\n- `AUTHORIZATION`: The authorization request being evaluated. Only available for AUTHORIZATION event stream rules.\n- `AUTHENTICATION`: The 3DS authentication request being evaluated. Only available for THREE_DS_AUTHENTICATION event stream rules.\n- `TOKENIZATION`: The tokenization request being evaluated. Only available for TOKENIZATION event stream rules.\n- `ACH_RECEIPT`: The ACH receipt being evaluated. Only available for ACH_CREDIT_RECEIPT and ACH_DEBIT_RECEIPT event stream rules.\n- `CARD`: The card associated with the event. Available for AUTHORIZATION and THREE_DS_AUTHENTICATION event stream rules.\n- `ACCOUNT_HOLDER`: The account holder associated with the card. Available for AUTHORIZATION and THREE_DS_AUTHENTICATION event stream rules.\n- `IP_METADATA`: IP address metadata for the request. Available for THREE_DS_AUTHENTICATION event stream rules.\n- `SPEND_VELOCITY`: Spend velocity data for the card or account. Requires `scope`, `period`, and optionally `filters` to configure the velocity calculation. Available for AUTHORIZATION event stream rules.\n- `TRANSACTION_HISTORY_SIGNALS`: Behavioral feature state derived from the entity's transaction history. Requires `scope` to specify whether to load card, account, or business account history. Available for AUTHORIZATION event stream rules.",
  "allOf": [
    {
      "type": "object",
      "properties": {
        "name": {
          "type": "string",
          "description": "The variable name for this feature in the rule function signature"
        }
      },
      "required": [
        "name"
      ]
    },
    {
      "oneOf": [
        {
          "title": "Authorization Feature",
          "type": "object",
          "properties": {
            "type": {
              "type": "string",
              "const": "AUTHORIZATION"
            }
          },
          "required": [
            "type"
          ]
        },
        {
          "title": "Authentication Feature",
          "type": "object",
          "properties": {
            "type": {
              "type": "string",
              "const": "AUTHENTICATION"
            }
          },
          "required": [
            "type"
          ]
        },
        {
          "title": "Tokenization Feature",
          "type": "object",
          "properties": {
            "type": {
              "type": "string",
              "const": "TOKENIZATION"
            }
          },
          "required": [
            "type"
          ]
        },
        {
          "title": "ACH Receipt Feature",
          "type": "object",
          "properties": {
            "type": {
              "type": "string",
              "const": "ACH_RECEIPT"
            }
          },
          "required": [
            "type"
          ]
        },
        {
          "title": "Card Feature",
          "type": "object",
          "properties": {
            "type": {
              "type": "string",
              "const": "CARD"
            }
          },
          "required": [
            "type"
          ]
        },
        {
          "title": "Account Holder Feature",
          "type": "object",
          "properties": {
            "type": {
              "type": "string",
              "const": "ACCOUNT_HOLDER"
            }
          },
          "required": [
            "type"
          ]
        },
        {
          "title": "IP Metadata Feature",
          "type": "object",
          "properties": {
            "type": {
              "type": "string",
              "const": "IP_METADATA"
            }
          },
          "required": [
            "type"
          ]
        },
        {
          "title": "Spend Velocity Feature",
          "type": "object",
          "properties": {
            "type": {
              "type": "string",
              "const": "SPEND_VELOCITY"
            },
            "scope": {
              "$ref": "#/components/schemas/velocity-scope"
            },
            "period": {
              "$ref": "#/components/schemas/velocity-limit-period"
            },
            "filters": {
              "$ref": "#/components/schemas/velocity-limit-filters"
            }
          },
          "required": [
            "type",
            "scope",
            "period"
          ]
        },
        {
          "title": "Transaction History Signals Feature",
          "type": "object",
          "properties": {
            "type": {
              "type": "string",
              "const": "TRANSACTION_HISTORY_SIGNALS"
            },
            "scope": {
              "type": "string",
              "description": "The entity scope to load transaction history signals for.",
              "enum": [
                "CARD",
                "ACCOUNT",
                "BUSINESS_ACCOUNT"
              ]
            }
          },
          "required": [
            "type",
            "scope"
          ]
        }
      ],
      "discriminator": {
        "propertyName": "type"
      }
    }
  ]
}