Publish Substack Article

Publish Markdown content to Substack post editor, converting Markdown to HTML and pasting as rich text. Saves as draft for user review before publishing.

Prerequisites

• Browser automation MCP (either one):
  • Chrome DevTools MCP (mcp__chrome-devtools__*)
  • Playwright MCP (mcp__playwright__*)
• User logged into Substack
• Python 3 with markdown package (pip install markdown)
• copy_to_clipboard.py script (shared from publish-zsxq-article skill)

Browser MCP Tool Mapping

This skill works with both Chrome DevTools MCP and Playwright MCP: