markdown-lint

You can lint Markdown files in a folder or workspace by running a validation tool that checks formatting and rule compliance before commits. This catches formatting issues early, keeping repository documentation consistent and preventing avoidable CI failures.

A common Markdown line length limit used during validation is 120 characters. Enforcing this limit during documentation checks prevents line-length violations from failing CI pipelines or blocking code reviews.

Yes, you can run a CLI tool in markdown-only validation mode to check a docs directory. It applies repository exclusion overrides to target specific files and catches formatting violations across READMEs, blog content, and instruction files.

Yes, Markdown validation applies to CLAUDE.md instruction files as well as READMEs and docs pages. It checks these files against the repository's formatting rules to ensure consistent documentation before review.

Documentation often fails CI checks due to uncaught formatting violations like exceeding the 120-character line limit or breaking M-family rules. Running a local lint check before committing catches these issues early and prevents pipeline failures.

The best way to validate Markdown across a repository is using an automated linting tool that applies consistent formatting rules. This ensures all documentation, from READMEs to blog content, meets the required standards before reaching review.