Substack Draft Publisher
Publishes Markdown files to Substack as rich-text drafts using browser automation and intelligent HTML conversion.
The Substack Draft Publisher skill automates the transition from local Markdown files to ready-to-publish Substack newsletters. It leverages browser automation (Playwright or Chrome DevTools) to navigate the Substack dashboard and uses a sophisticated clipboard-based pasting method to ensure that all formatting, including headings, bold text, and links, remains intact within Substack's Tiptap editor. Notably, it solves the platform's lack of table support by automatically converting Markdown tables into styled images, providing a professional look without manual intervention. All posts are saved as drafts, allowing for a final human review before going live.