ClaudSkills / Dev Tools / linters-formatters

Format Markdown

Q: What is a Claude Code skill and how does the Format Markdown skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Format Markdown is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Dev Tools category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Dev Tools · Sub-category: linters-formatters · Last updated: 2026-06-13

lang:swift

Format markdown files to CommonMark/GFM using prettier (commonmark-based parser — the npm analog of cmark-gfm / commonmark.js / swift-markdown). Use when asked to format, normalize, lint, or clean up markdown, or to make .md files CommonMark/GFM-compliant. Preserves the crawler's F1–F6 fidelity invariants (`* ` bullets, leading H1, no inline-link re-adding).

From the source SKILL.md

Normalize markdown to CommonMark/GFM with prettier (pinned devDependency).

What this skill does

Format Markdown is a community-contributed Claude Code skill in the linters-formatters sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/format-markdown/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when asked to format, normalize, lint, or clean up markdown, or to make .md files CommonMark/GFM-compliant.

Who uses this skill

The Format Markdown Claude Code skill is built for developers, power users, and teams automating repetitive workflows and improving developer experience. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/format-markdown
curl -L https://claudskills.com/skills/format-markdown/SKILL.md \
  -o ~/.claude/skills/format-markdown/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/format-markdown/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/format-markdown/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\format-markdown\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Format Markdown Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/format-markdown/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Format Markdown skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Format Markdown skill?

Use Format Markdown when your Claude Code task falls under the Dev Tools category — specifically in the linters formatters area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Format Markdown" or describe the task and let Claude pick). Browse related skills at /category/tools/.

What is a Claude Code skill and how does the Format Markdown skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Format Markdown is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Dev Tools category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

subagentceo. (2026). Format Markdown [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/format-markdown/

BibTeX

@misc{format-markdown-2026,
  author    = {subagentceo},
  title     = {Format Markdown [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/format-markdown/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/format-markdown.svg)](https://claudskills.com/skills/format-markdown/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

More Dev Tools skills

Browse all Dev Tools skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Dev Tools skills → Top 100 skills

Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

Part of Acreator Store — Adam Lankamer's AI tools: PerfectStudio · Ucaption · UTagger · AutoXPoster · TestYourSkills · AutomationFlows · Au Naturel · Telegram @acreatorstore