Validator Element

The validator element analyzes a markup fragment to determine conformance with HTML standards and project rules. It accepts a tag plus attributes or a fragment and returns a structured report of validity, missing requirements, and attribute value issues. Conceptually, validation occurs through a rule engine that checks tag legitimacy, required attributes, type constraints, boolean attribute handling, and ARIA consistency. The tool supports batch validation for multiple fragments and can enforce custom project rules via regex patterns or allow/deny lists. It is designed for developers, frontend engineers, and QA teams integrating into pipelines or editor plugins to catch errors early. Unique value comes from combining standard-driven validation with project-specific rule sets, enabling high-precision feedback and deterministic error codes that map to automation tasks. Core features include per-element validity scoring, detailed error lists, and suggestions to fix attribute names, values, or missing attributes. Typical use cases include validating components before rendering, ensuring accessibility attributes are present, and verifying that dynamic attributes follow internal conventions. The tool emphasizes deterministic outputs and traceability for CI environments, with the ability to export results for downstream tooling. This makes it particularly valuable for teams enforcing strict markup hygiene across large codebases, while remaining lightweight and easilyAutomatable.