Issues

• AWS::Serverless::Function DeploymentPreference.Alarms: object-only schema rejects alarm names

  aws-cloudformation/resource-provider-enhanced-schemas#54 · Filter by author hoganbr-amzn opened on Oct 14, 2026

• GetAtt attributes returning KMS key ARNs and security group ids have no format

  aws-cloudformation/resource-provider-enhanced-schemas#53 · Filter by author hoganbr-amzn opened on Oct 13, 2026

• AWS::EC2::LaunchTemplate SecurityGroups: SecurityGroup.Id format on a names property

  aws-cloudformation/resource-provider-enhanced-schemas#52 · Filter by author hoganbr-amzn opened on Oct 13, 2026

• AWS::Pipes::Pipe Subnets`: Subnet.Id format rejects dynamic path parameters

  aws-cloudformation/resource-provider-enhanced-schemas#51 · Filter by author hoganbr-amzn opened on Oct 13, 2026

• Generated AWS::IAM::Role.Arn format on AWS::DevOpsAgent::Service RoleArn rejects the empty string the provider schema allows

  aws-cloudformation/resource-provider-enhanced-schemas#49 · Filter by author hoganbr-amzn opened on Oct 9, 2026
  1

• FormatGenerator applies name-based formats through $ref to shared catch-all definitions (e.g. SAM PassThroughProp)

  aws-cloudformation/resource-provider-enhanced-schemas#31 · Filter by author kddejong opened on Aug 18, 2026