---
type: resource-type
title: Extension
description: aws resource type AWS::AppConfig::Extension
name: Extension
lexicon: aws
resource_type: AWS::AppConfig::Extension
---
`AWS::AppConfig::Extension`, a resource type of the aws lexicon.

## Properties

- `Actions` (`Record<string, unknown>`, required)
- `Name` (`string`, required): Name of the extension.
- `Arn` (`string`, optional)
- `Description` (`string`, optional): Description of the extension.
- `Id` (`string`, optional)
- `LatestVersionNumber` (`number`, optional)
- `Parameters` (`Record<string, unknown>`, optional)
- `Tags` (`Extension_Tag[]`, optional): An array of key-value tags to apply to this resource.
- `VersionNumber` (`number`, optional)

## Attributes

- `Arn`
- `Id`
- `VersionNumber`

## Governed by

- [EXT001](/rules/EXT001.md): Extension constraint violation — cross-property validation from cfn-lint extension schemas