remark-lint-fenced-code-marker
JSON →remark-lint rule that warns when fenced code block markers (backticks or tildes) are inconsistent. Version 4.0.1, part of the remark-lint ecosystem. It checks that all fenced code blocks use the same marker style, defaulting to 'consistent' (first style detected). Works with unified processor, ships TypeScript types, ESM-only since version 4, actively maintained. Recommended preset uses backticks.