{"id":"cfn-templates-yaml-or-json","text":"CloudFormation templates can be written in YAML or JSON — both are fully supported.","truth_value":"IN","source":"entries/2026/03/11/AWSCloudFormation-latest-UserGuide-gettingstartedwalkthroughhtml.md","source_url":"","source_hash":"60d4a3d65037949f","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"cfn-templates-yaml-or-json","truth_value":"IN","reason":"premise"}]}}