Change type schemas

{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "name": "Create CodeDeploy application",
  "description": "Use to create an AWS CodeDeploy application 
  resource with the specified name.",
  "type": "object",
  "properties": {
    "Description": {
      "description": "The reason for the request.",
      "type": "string",
      "minLength": 1,
      "maxLength": 500
    },
    "VpcId": {
      "description": "ID of the vpc to use, in the form vpc-0123abcd or vpc-01234567890abcdef.",
      "type": "string",
      "pattern": "^vpc-[a-z0-9]{8}$"
    },
    "StackTemplateId": {
      "description": "Must be stm-sft6rv00000000000",
      "type": "string",
      "enum": ["stm-sft6rv00000000000"]
    },
    "Name":{
      "description": "A name for the stack or stack component; 
      this becomes the Stack Name.",
      "type": "string",
      "minLength": 1,
      "maxLength": 255
    },
    "Tags": {
      "description": "Up to seven tags (key/value pairs) to 
      categorize the resource.",
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "Key": {
            "type": "string",
            "minLength": 1,
            "maxLength": 127
          },
          "Value": {
            "type": "string",
            "minLength": 1,
            "maxLength": 255
          }
        },
        "additionalProperties": false,
        "required": [
          "Key",
          "Value"
        ]
      },
      "minItems": 1,
      "maxItems": 7
    },
    "TimeoutInMinutes": {
      "description": "The maximum amount of time, in minutes, to 
      allow for execution of the change. This will not prolong execution, 
      but the RFC fails if the change is not completed in the specified time. 
      Valid values are 60 up to 360, for long-running UserData.",
      "type": "number",
      "minimum": 0,
      "maximum": 60
    },
    "Parameters": {
      "description": "Specifications for the stack.",
      "type": "object",
      "properties": {
        "CodeDeployApplicationName": {
          "description": "The name of an AWS CodeDeploy application.",
          "type": "string",
          "minLength": 1,
          "maxLength": 100,
          "pattern": "^[a-zA-Z0-9._+=,@-]{1,100}$"
        }
      },
      "additionalProperties": false,
      "required": [
        "CodeDeployApplicationName"
      ]
    }
  },
  "additionalProperties": false,
  "required": [
    "Description",
    "VpcId",
    "StackTemplateId",
    "Name",
    "TimeoutInMinutes",
    "Parameters"
  ]
}

The first part of the schema provides information to AMS about the requested change type.

The TimeoutInMinutes parameter allows you to indicate a boundary time for running the change type. Valid values are 60 up to 360, for long-running UserData.

The Parameters section is where you specify settings for the resource you are creating, or the action you are requesting.

The "additional properties" sections let you know what parameters are required and which are optional.