{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/opentofu/opentofu/main/internal/encryption/keyprovider/externalcommand/protocol/header.schema.json",
  "title": "OpenTofu External Key Provider Header",
  "description": "Header line output when an external key provider is launched. This must be written on a single line followed by a newline character. Note that the header may contain additional fields in later protocol versions.",
  "type": "object",
  "properties": {
    "magic": {
      "$comment": "Magic string identifying the key provider as such.",
      "type": "string",
      "enum": ["OpenTofu-External-Key-Provider"]
    },
    "version": {
      "$comment": "Protocol version number",
      "type": "integer",
      "enum": [1]
    }
  },
  "required": ["magic","version"],
  "additionalProperties": true
}