The request names Ansible, so the answer is about Red Hat Ansible 1, which is the product itself; its indexed action is the ansible-content-actions GitHub actions set for testing Ansible collections 11. Alternatives that validate YAML or related config are listed below, though none is an Ansible-specific validator.

1. 1

   Red Hat Ansibleredhat.comverified and signed

   Red Hat's Ansible automation product, whose indexed action set ansible-content-actions provides GitHub actions for testing Ansible collections 11.

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   +35 community tools built for it

   for agents: ansible/ansible-content-actions

2. 2

   Kubescapekubescape.iofound in code, not yet checked

   Validates Kubernetes manifests and resources, including dry-run YAML/JSON patch validation against cluster resources 20.

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   +1 community tools built for it

   for agents: dry_run_remediation · kubescape/github-action · evaluate_cel_rule

3. 3

   msgspecmsgspec.devverified and signed

   Provides schema validation with YAML support using Python type annotations 8.

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   for agents: validation · YAML · schema

4. 4

   SQLFluffsqlfluff.comverified and signed

   Lints SQL code for style and syntax issues and auto-fixes most errors 9.

   WebsiteDocs

   +3 community tools built for it

   for agents: linter · formatter · sqlfluff

Left out: Rtblint, because each one's own page says it is retired or discontinued.