rumdl-action

Version updated for https://github.com/rvben/rumdl to version v0.1.50.

• This action is used across all versions by 3 repositories.

Action Type

This is a Composite action.

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Action Summary

rumdl is a high-performance Markdown linter and formatter built with Rust, designed to ensure consistency, enforce best practices, and improve the developer experience when working with Markdown files. It automates tasks such as identifying and fixing common Markdown issues, supports multiple Markdown flavors, and offers fast performance with intelligent caching. With its highly configurable setup and CI/CD compatibility, rumdl is a robust tool for maintaining clean and standardized Markdown documentation.

Release notes

Added

• MD076: New allow-loose-continuation option permits blank lines around continuation paragraphs in tight lists, enabling tight inter-item spacing while visually separating multi-paragraph content within items (#524)
• MD013: Reflow fix now supports footnote definitions ([^id]: prose text), including multi-paragraph footnotes with code blocks, blockquotes, tables, lists, and link reference definitions preserved verbatim (#499)

Fixed

• MD013: Link reference definitions inside footnotes no longer terminate footnote collection prematurely
• MD013: Fenced code block fence markers now require homogeneous characters (no mixed backtick/tilde)
• Code block tools: Error output now uses file:line:col: [tool] message format matching rumdl’s own lint output, with <standard input>:N:M: references translated to absolute file positions and boilerplate stripped (#521)

Changed

• Upgrade all GitHub Actions from Node.js 20 to Node.js 24 (Node.js 20 deprecated June 2, 2026)

Downloads

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

• rvben
• GitHub Actions