remark-lint-heading-style

A remark-lint rule that warns when Markdown headings violate a specified or consistent style (ATX, ATX-closed, or setext). Version 4.0.1 is the latest stable release, part of the remark-lint ecosystem. It is ESM-only (Node 16+). Unlike alternatives like markdownlint, it integrates seamlessly with unified and remark, allowing programmatic linting and fixes. It supports automatic style detection (consistent) and explicit configuration. The package ships TypeScript types and is commonly used in presets like remark-preset-lint-consistent and remark-preset-lint-markdown-style-guide.