common-commonmark

Write and validate Markdown that conforms to the CommonMark specification (version 0.31.2).

When to use

Use this skill when:

• Writing or generating any Markdown content (documentation, READMEs, changelogs, comments)
• Reviewing Markdown files for correctness
• Encountering ambiguous Markdown syntax and needing a definitive rule
• Creating templates or snippets that include Markdown

Instructions

1. Use ATX headings exclusively

Use # style headings (ATX). Do not use setext (underline) headings.