## rain build

Create CloudFormation templates

### Synopsis

The build command interacts with the CloudFormation registry to list types, output schema files, and build starter CloudFormation templates containing the named resource types.

```
rain build [<resource type>] or <prompt>
```

### Options

```
  -b, --bare                 Produce a minimal template, omitting all optional resource properties
      --debug                Output debugging information
  -h, --help                 help for build
  -j, --json                 Output the template as JSON (default format: YAML)
  -l, --list                 List all CloudFormation resource types with an optional name prefix
      --model string         The ID of the Bedrock model to use for --prompt. Shorthand: claude2, claude3haiku, claude3sonnet, claude3opus, claude3.5sonnet (default "claude2")
      --no-cache             Do not used cached schema files
      --omit-patches         Omit patches and use the raw schema
      --only-cache           Only use cached schema files
  -o, --output string        Output to a file
      --pkl-class            Output a pkl class based on a resource type schema
  -p, --profile string       AWS profile name; read from the AWS CLI configuration file
      --prompt               Generate a template using Bedrock and a prompt
      --prompt-lang string   The language to target for --prompt, CloudFormation YAML (cfn), CloudFormation Guard (guard), Open Policy Agent Rego (rego) (default "cfn")
      --recommend            Output a recommended architecture for the chosen use case
  -r, --region string        AWS region to use
  -s, --schema               Output the raw un-patched registry schema for a resource type
```

### Options inherited from parent commands

```
      --no-colour   Disable colour output
```

### SEE ALSO

* [rain](index.md)	 - 

###### Auto generated by spf13/cobra on 23-Apr-2026