Authors, validates, and troubleshoots AWS CloudFormation templates. Covers template authoring with secure defaults, local validation with either cfn-lint or cloudformation-validate, cfn-guard security and compliance checks as a recommended default, account-aware CloudFormation service pre-deployment validation, CloudFormation Express mode for faster deployments, and root-cause diagnosis of failed stacks using CloudFormation events and CloudTrail correlation. Also covers author-time template intelligence with the CloudFormation Language Server and published cloudformation-validate libraries.
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tessl review fix ./plugins/aws-core/skills/aws-cloudformation/SKILL.mdThe canonical home for this skill is aws-cloudformation in aws/agent-toolkit-for-aws
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
The workflow requires reading CloudFormation templates (e.g. via `retrieve-template-context.script.md`), which are user-supplied or repository files containing free text processed by the agent.
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