mdsmith

mdsmith is a Markdown linter and formatter built in Go that maintains consistency across documentation trees. It checks style, readability, structure, and cross-file integrity, then auto-fixes issues that have a single correct solution. The tool runs as a CLI, LSP server, and editor extensions for VS Code, Neovim, and Obsidian.

Designed for teams managing large documentation sets, mdsmith keeps generated sections in sync, enforces readability budgets, and validates links across files. The same rule engine runs in your editor, CI pipeline, and coding agents like Claude Code, ensuring consistent feedback everywhere. A static Go binary makes it significantly faster than Node-based alternatives.