yaml-config-helper

Check indentation consistency, colons after keys, and quoting of special characters, then run yamllint for automated validation. Common failures come from tabs instead of spaces and incorrect indentation levels.

Use 2-space indentation consistently and ensure nested keys align under their parent keys. Kubernetes manifests fail when list items or nested mappings are misaligned, so compare against the schema structure and correct each level.

YAML specification requires spaces for indentation and rejects tab characters entirely. Replace all tabs with spaces, typically 2 spaces per level, to resolve the parse error.

Yes, YAML files can be checked against Docker Compose, Kubernetes, GitHub Actions, and Ansible conventions. Schema-aware validation catches missing required keys and incorrect value types beyond basic syntax checks.

Use anchors and aliases when the same configuration block repeats across a file, such as shared environment variables in Docker Compose. They reduce duplication but should be avoided when they hurt readability for other maintainers.